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Calculated Shard: 85 (from laksa043)

2. Crawled Status Check

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curl -X POST \
  'http://laksa085.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types.html\')), getAhrefsUnparsedNoserviceFromURL(\'https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types.html\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html","crawl_time":1776477651,"first_indexed_time":1418920571,"http_code":200,"src_unparsed":"org,stanfordhealthcare!\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html s443","src_root_hash":"2589037388098715685","history_drop_reason":null,"meta_title":"Types of Arrhythmia | Stanford Health Care","meta_descriptions":["Read more about the different types of arrhythmia that are treated at Stanford."],"attrs_boilerpipe_text":"Types of Arrhythmia\nArrhythmia describes a group of conditions that affect the heart’s natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern.\nThe\nStanford Cardiac Arrhythmia Center\nprovides expert, comprehensive care for people with all types of arrhythmias. Our electrophysiologists (specialists in the heart’s electrical system), surgeons, specialty nurses, and other care providers have years of experience and specialized training in arrhythmia care.\nOur world-class doctors bring the latest advancements in research to our patient care, providing you with the highest quality of care available.\nFEATURED\nMake an Appointment\nTo request an appointment with one of our arrhythmia specialists, call:\n650-723-7111\n.\nOur electrophysiologists and their teams have specialized expertise in all types of arrhythmia. We begin with a comprehensive diagnostic evaluation to thoroughly understand your symptoms. Our doctors are especially skilled at interpreting test results, which helps us better plan your care.\nWith years of experience, we are leading research and practice of innovative therapies that offer a long-term solution for arrhythmia. Our focus is on expert care that relieves your symptoms, prevents complications, and improves your health. \nTreatment Overview\nSpecialized Care for Women\nAfter we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs.\nDevices that treat arrhythmia\nFor serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures:\nImplantable cardioverter-defibrillator (ICD)\n \nLeadless pacemaker\nPacemaker\n \nCardiac resynchronization therapy (CRT)\n \nLead and device extraction\nSubcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. \nLearn more about our advanced treatment options for all types of arrhythmias, including:\nStanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias.\nSpecialized Care for Women with Arrhythmia\nAt Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the\nWomen’s Heart Health Clinic\nhave advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications.\nOur arrhythmia care for women includes understanding:\nHormones\nCertain types of\n \narrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need.\nMedication\nSome drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia.\nPregnancy care\nWe safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform\ncatheter ablations\nwithout using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant.\nSymptoms\nWomen often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include:\nHeart palpitations\nDizziness\nChest pain or tightness\nBecause women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis.\nWomen with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke.\nImplantable monitors\nAn effective treatment for arrhythmia is an \nimplantable loop recorder\n, a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor.\nWe also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery.\nTreatment Overview\nAfter we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs.\nDevices that treat arrhythmia\nFor serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures:\nImplantable cardioverter-defibrillator (ICD)\n \nLeadless pacemaker\nPacemaker\n \nCardiac resynchronization therapy (CRT)\n \nLead and device extraction\nSubcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. \nLearn more about our advanced treatment options for all types of arrhythmias, including:\nStanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias.\nclose Treatment Overview\nSpecialized Care for Women\nSpecialized Care for Women with Arrhythmia\nAt Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the\nWomen’s Heart Health Clinic\nhave advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications.\nOur arrhythmia care for women includes understanding:\nHormones\nCertain types of\n \narrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need.\nMedication\nSome drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia.\nPregnancy care\nWe safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform\ncatheter ablations\nwithout using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant.\nSymptoms\nWomen often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include:\nHeart palpitations\nDizziness\nChest pain or tightness\nBecause women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis.\nWomen with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke.\nImplantable monitors\nAn effective treatment for arrhythmia is an \nimplantable loop recorder\n, a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor.\nWe also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery.\nclose Specialized Care for Women\nConsidering Stanford\nWhat areas of clinical research and innovation are Stanford doctors currently pursuing?\nThe Stanford Cardiac Arrhythmia Service is not only dedicated to treating its patients with the finest treatment options available, but also to advancing those treatments. Clinical research studies may be sponsored by the National Institutes of Health, other governmental agencies, or industry.\nWe're actively developing new approaches to arrhythmia diagnosis and treatment, including:\nNew device development\nNew treatments and diagnostic techniques for Atrial Fibrillation\nNew technologies for catheter ablation\nIntegration of imaging in catheter ablation\nNew treatments for arrhythmias in cardiomyopathies (hypertrophic, ischemic, nonischemic)\nNew approaches to ICD and Pacemaker therapy\nSignal processing and mathematical techniques for diagnosis of arrhythmias\nNew diagnostic approaches to patients with inherited arrhythmic disorders\nWe work with the Stanford Biodesign Program—an innovative collaboration between medicine and engineering—to develop new technologies in medicine.\nAdditional Research and Innovation Advancements\nA Stanford doctor co-invented a new form of ablation treatment called\ncryoablation\n(freezing), which has been used in over 200,000 patients worldwide, including patients with atrial fibrillation and supraventricular tachycardia.\nThe Stanford Center for Arrhythmia Research has assembled more than 40 faculty who represent numerous disciplines and are collaborating to solve arrhythmia related problems.\nStanford doctors have conducted clinical studies leading to approval of the radiofrequency energy ablation system measuring contact force to improve ablation outcomes.\nLearn more about radiofrequency ablation\nStanford doctors and surgeons were in the first FDA clinical trial to test\nhybrid surgical-catheter ablation,\ncombining minimally invasive surgery with a catheter-based procedure to treat complex atrial fibrillation. \nWhat insurance plans does Stanford Health Care accept?\nHave insurance or pre-authorization questions? The \nPatient Financial Clearance\n team is available Monday – Friday, 8 a.m. – 5 p.m., to answer your questions. Please call\n650-724-4445\nor\n1-877-291-7335\n(toll free).\nHow do I find the right doctor for me?\nWhen choosing a doctor, it’s important to consider the doctor’s clinical training, experience and expertise in a specialized area that matches your health care needs.\nYou can find the right Stanford doctor for you by using our doctor directory and filtering the results based on a medical category, specialty, or doctor’s last name.\nView a list of cardiac arrhythmia doctors\nWhat support services are available for patients with arrhythmia?\nWe offer a number of support services for arrhythmia, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events.\nLearn more about our support services\nDo I need a doctor referral to be seen at Cardiac Arrhythmia Service?\nYou can call Cardiac Arrhythmia Service directly to schedule an appointment with one of our doctors. Call\n650-723-6459\nto make an appointment.\nIs financial assistance available?\nYes, Stanford Health Care offers financial assistance for patients who are uninsured or underinsured. Meet with one of our financial counselors to find the best approach to paying for your health care. Financial counselors are available Monday through Friday from 7:00 a.m. – 6:00 p.m.  \nLearn more about financial assistance services\nFirst Appointment\nWhat should I bring to my first appointment?\nManaging treatment for arrhythmia is a highly personalized process. Our clinic receptionists will confirm the information you should bring with you prior to your first appointment. For your first appointment, please bring the following test results and information:\nElectrocardiogram\n(ECG or EKG)\nHolter Report\nor ECG Monitor\nEchocardiogram\n(Ultrasound of the Heart)\nHeart MRI\nHeart CT\nYour medical history\nReport or results from a physical examination\nYou will also need to have the following information with you when you check in:\nInsurance card\nA form of payment for any co-pays or deductibles\nOne form of photo ID:\nValid state-issued driver’s license\nValid state-issued ID card\nValid passport\nValid U.S. Military ID card\nValid U.S. Permanent Resident Card\nI need directions to the clinic. Where do I park?\nThe Cardiac Arrhythmia Service is located at the following address. Self-parking options are available for a fee. For more information, please see Directions and Parking information for Cardiac Arrhythmia Service:\nPlease plan to arrive 20-30 minutes prior to your appointment time due to construction near the main hospital campus. This will allow you plenty of time to park, locate your clinic and complete any additional paperwork.  \nHow do I send my medical record to SHC?\nPlease print, fill out, and return the\nMedical Record Release Form\nto your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care.\nCan my family member or friend attend my appointment?\nAlways feel free to bring someone with you to your appointments. A family member or friend can help ask questions, remember the information your care team gives you, and provide support.\nWhat is the best way to get all my questions answered during my appointment?\nWrite down your questions before your appointment and rank them in order of importance, beginning with the most important ones. If there isn’t enough time to have all your questions answered during your appointment, ask your doctor who you can speak with to get your other questions answered. \nCurrent Patients\nHow do I reach someone if I have questions about my care?\nCurrent patients may reach one of our outstanding arrhythmia nurse specialists during clinic hours at\n650-723-7111\n. For after-hours, reach the on-call arrhythmia doctor at\n650-723-7111\n.\nHow do I pay my bill?\nYou have multiple options when it comes to paying your bill.\nPay Online:\nYou can log in to \nMyHealth\n or the MyHealth mobile app to see and pay your bill.\nAlready have an account but need help logging in?\nForgot Username?\nForgot Password?\nContact the MyHealth Help Desk\nYou can also \npay as a guest\n to pay your bill without logging in.\nPay by mail:  \nStanford Health Care\nP.O. Box 740715, Los Angeles, CA 90074-0715\nLos Angeles, CA 90074-0715\nPay by Phone:\nYou can call our Patient Billing Customer Service Office\n1-800-549-3720\n.\nFor our latest business hours and for more information about billing, visit our \nBilling\n page. \nWhat support resources are available to me?\nWe offer a number of support services for arrhythmia patients, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events.\nLearn more about our support services\nHow do I cancel or reschedule my appointment?\nPlease call our clinic receptionists at\n650-723-6459\n. They are available Monday through Friday, 8:30 a.m. to 5 p.m. to help you reschedule or cancel your appointment. \nHow do I know if a Clinical Trial is right for me?\nTo determine if a clinical trial is right for you, talk to your doctor. He or she can refer you to a research coordinator for more information on studies that may be right for your specific condition.\nYou can also find the guidelines for who can participate in a particular clinical trial online. However, it is best to work with your doctor to decide the right care approach for your needs.\nView list of open, arrhythmia clinical trials at Stanford\nInternational Patients\nI live overseas. How do I access Stanford care?\nMany of our programs are available to international patients.\nOur\nInternational Medicine Services\nteam can help you find the right doctor, estimate medical costs, book travel, and get you information about Stanford programs and services.\nClinical Trials for Arrhythmia\nClinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.\nOpen trials refer to studies currently recruiting participants or that may recruit participants in the near future. Closed trials are not currently enrolling, but similar studies may open in the future.\nTo learn more about the clinical trials we offer, contact\nGerri O'Riordan\n at 650-725-5597.","attrs_markdown":"[Skip to main content](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html#main-container)\n\n**Notice:**  Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience.\n\n[Menu](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[![Stanford Health Care](https:\/\/stanfordhealthcare.org\/etc\/clientlibs\/shc\/main\/img\/stanfordHealthcareLogo.svg)](https:\/\/stanfordhealthcare.org\/)\n\n[Search](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Menu](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[![Stanford Health 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[Help Paying Your Bill](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/financial-assistance.html)\n- [COVID-19 Resource Center](https:\/\/stanfordhealthcare.org\/discover\/covid-19-resource-center.html)\n- [Community Health](https:\/\/stanfordhealthcare.org\/about-us\/community-partnerships.html)\n\n- [Locations and Parking](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/locations-and-parking.html)\n- [Visitor Policy](https:\/\/stanfordhealthcare.org\/discover\/covid-19-resource-center\/patient-care\/visitor-policy.html)\n- [Hospital Check-in](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/hospital-check-in.html)\n- [Video Visits](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/video-visits\/scheduling-a-video-visit.html)\n- [International Patients](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/international-services.html)\n- [Contact Us](https:\/\/stanfordhealthcare.org\/about-us\/contact.html)\n\n[View All Information for Patients & Visitors](https:\/\/stanfordhealthcare.org\/for-patients-visitors.html)\n\nWe are available to assist you 24\/7.\n\n650-498-3333\n\n[GuestServices@stanfordhealthcare.org](mailto:GuestServices@stanfordhealthcare.org)\n\n[View the changes to our visitor policy](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2020\/novel-coronavirus\/updated-visitor-policy.html)\n\n[View information for Guest Services](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/guest-services.html)\n\n## New to MyHealth?\n**Manage Your Care From Anywhere.**\n\nAccess your health information from any device with MyHealth. You can message your clinic, view lab results, schedule an appointment, and pay your bill.\n\n#### ALREADY HAVE AN ACCESS CODE?\n[Activate Account](https:\/\/myhealth.stanfordhealthcare.org\/#\/activation\/lookup=true)\n\n#### DON'T HAVE AN ACCESS CODE?\n[Create a New Account](https:\/\/myhealth.stanfordhealthcare.org\/#\/activate-create)\n***\n#### NEED MORE DETAILS?\n[Learn More about MyHealth](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/myhealth.html)  \n [Learn More about Video Visits](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/video-visits\/connecting-to-a-video-visit.html)\n\n#### MyHealth for Mobile\n[Get the iPhone MyHealth app](https:\/\/itunes.apple.com\/us\/app\/stanford-health-care-myhealth\/id922978966?mt=8)[Get the Android MyHealth app](https:\/\/play.google.com\/store\/apps\/details?id=org.stanfordhealthcare.myhealth)\n\n#### WELCOME BACK\n[Forgot Username](https:\/\/myhealth.stanfordhealthcare.org\/?linksource=webSHC#\/forgot-username) or [Password?](https:\/\/myhealth.stanfordhealthcare.org\/?linksource=webSHC#\/forgot-password)\n\n[Need Help?](https:\/\/myhealth.stanfordhealthcare.org\/ContactHelpDesk)\n\n# Types of Arrhythmia\nHow We Can Help You\n\nArrhythmia describes a group of conditions that affect the heart’s natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern.\n\nThe [Stanford Cardiac Arrhythmia Center](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html) provides expert, comprehensive care for people with all types of arrhythmias. Our electrophysiologists (specialists in the heart’s electrical system), surgeons, specialty nurses, and other care providers have years of experience and specialized training in arrhythmia care.\n\nOur world-class doctors bring the latest advancements in research to our patient care, providing you with the highest quality of care available.\n\n## FEATURED\n[![](https:\/\/img.youtube.com\/vi\/OBozymcv4hI\/mqdefault.jpg)](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/videos\/new-mapping-technology-target-afib.html)\n\n[New Mapping Technology Helps Target Treatment of Atrial Fibrillation](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/videos\/new-mapping-technology-target-afib.html)\n\n[![Image of heartmonth-afib-qa-221x221-tile.jpg](https:\/\/stanfordhealthcare.org\/content\/shc\/en\/stanford-health-care-now\/2015\/atrial-fibrillation-qa\/jcr:content\/articleImage.transform\/221x221\/q82\/image.jpg)](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2015\/atrial-fibrillation-qa.html)\n\n[Atrial Fibrillation Q\\&A](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2015\/atrial-fibrillation-qa.html)\n\n[Find a Doctor or Provider](https:\/\/stanfordhealthcare.org\/directory\/directory.html\/&sp_conditions%7C\/medical-conditions\/blood-heart-circulation\/arrhythmia.html%5EArrhythmia#x1=sp_spec_care_phy&q1=true)\n\n[Make An Appointment](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia.html)\n\n[Learn About Clinic](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html)\n\nMake an Appointment\n\nTo request an appointment with one of our arrhythmia specialists, call: **[650-723-7111](tel:\/\/650-723-7111)**.\n## Treatment for Arrhythmia\nOur electrophysiologists and their teams have specialized expertise in all types of arrhythmia. We begin with a comprehensive diagnostic evaluation to thoroughly understand your symptoms. Our doctors are especially skilled at interpreting test results, which helps us better plan your care.\n\nWith years of experience, we are leading research and practice of innovative therapies that offer a long-term solution for arrhythmia. Our focus is on expert care that relieves your symptoms, prevents complications, and improves your health.\n\ntabs\n\nfalse\n\n###\n### Treatment Overview\n### Specialized Care for Women\n###\n\nAfter we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs.\n\n**Devices that treat arrhythmia**\n\nFor serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures:\n\n- [Implantable cardioverter-defibrillator (ICD)](https:\/\/stanfordhealthcare.org\/medical-treatments\/i\/icd.html)\n- [Leadless pacemaker](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2024\/successful-implant-leadless-dual-chamber-pacemaker.html)\n- [Pacemaker](https:\/\/stanfordhealthcare.org\/medical-treatments\/p\/pacemaker.html)\n- [Cardiac resynchronization therapy (CRT)](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-resynchronization-therapy.html)\n- Lead and device extraction\n\nSubcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients.\n\nLearn more about our advanced treatment options for all types of arrhythmias, including:\n\nStanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias.\n\n**Supraventricular arrhythmias**\n\n- [Atrial fibrillation](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/atrial-fibrillation.html)\n- [Atrial flutter](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/atrial-flutter.html)\n- [Atrial tachycardia](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/supraventricular-tachycardia\/types\/atrial-tachycardia.html)\n- [Atrioventricular nodal reentrant tachycardia (AVNRT)](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/supraventricular-tachycardia\/types\/atrioventricular-node-reentrant-tachycardia-avnrt.html)\n- Atrioventricular reeentrant tachycardia\n- Paroxysmal supraventricular tachycardia (PSVT)\n- Wolff-Parkinson-White syndrome\n\n[**Ventricular arrhythmias**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-arrhythmia.html)\n\n- [Ventricular fibrillation](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-fibrillation.html)\n- [Ventricular tachycardia](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-tachycardia.html)\n- Premature ventricular beats (PVCs)\n- Torsades de pointes\n\n**Inherited arrhythmias**\n\n- [Brugada syndrome](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/brugada-syndrome.html)\n- Catecholaminergic polymorphic ventricular tachycardia (CPVT)\n- [Long QT syndrome](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/long-qt-syndrome.html)\n\n[**Bradycardias**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types\/bradycardia.html)\n\n- Heart block\n- Sick sinus syndrome\n\n**Specialized Care for Women with Arrhythmia**\n\nAt Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https:\/\/stanfordhealthcare.org\/medical-clinics\/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications.\n\nOur arrhythmia care for women includes understanding:\n\n**Hormones**\n\nCertain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need.\n\n**Medication**\n\nSome drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia.\n\n**Pregnancy care**\n\nWe safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant.\n\n**Symptoms**\n\nWomen often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include:\n\n- Heart palpitations\n- Dizziness\n- Chest pain or tightness\n\nBecause women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis.\n\nWomen with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke.\n\n**Implantable monitors**\n\nAn effective treatment for arrhythmia is an [implantable loop recorder](https:\/\/stanfordhealthcare.org\/medical-tests\/i\/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor.\n\nWe also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery.\n\nTreatment Overview\n\nAfter we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs.\n\n**Devices that treat arrhythmia**\n\nFor serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures:\n\n- [Implantable cardioverter-defibrillator (ICD)](https:\/\/stanfordhealthcare.org\/medical-treatments\/i\/icd.html)\n- [Leadless pacemaker](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2024\/successful-implant-leadless-dual-chamber-pacemaker.html)\n- [Pacemaker](https:\/\/stanfordhealthcare.org\/medical-treatments\/p\/pacemaker.html)\n- [Cardiac resynchronization therapy (CRT)](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-resynchronization-therapy.html)\n- Lead and device extraction\n\nSubcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients.\n\nLearn more about our advanced treatment options for all types of arrhythmias, including:\n\nStanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias.\n\n**Supraventricular arrhythmias**\n\n- [Atrial fibrillation](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/atrial-fibrillation.html)\n- [Atrial flutter](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/atrial-flutter.html)\n- [Atrial tachycardia](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/supraventricular-tachycardia\/types\/atrial-tachycardia.html)\n- [Atrioventricular nodal reentrant tachycardia (AVNRT)](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/supraventricular-tachycardia\/types\/atrioventricular-node-reentrant-tachycardia-avnrt.html)\n- Atrioventricular reeentrant tachycardia\n- Paroxysmal supraventricular tachycardia (PSVT)\n- Wolff-Parkinson-White syndrome\n\n[**Ventricular arrhythmias**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-arrhythmia.html)\n\n- [Ventricular fibrillation](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-fibrillation.html)\n- [Ventricular tachycardia](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-tachycardia.html)\n- Premature ventricular beats (PVCs)\n- Torsades de pointes\n\n**Inherited arrhythmias**\n\n- [Brugada syndrome](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/brugada-syndrome.html)\n- Catecholaminergic polymorphic ventricular tachycardia (CPVT)\n- [Long QT syndrome](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/long-qt-syndrome.html)\n\n[**Bradycardias**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types\/bradycardia.html)\n\n- Heart block\n- Sick sinus syndrome\n\nclose Treatment Overview\n\nSpecialized Care for Women\n\n**Specialized Care for Women with Arrhythmia**\n\nAt Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https:\/\/stanfordhealthcare.org\/medical-clinics\/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications.\n\nOur arrhythmia care for women includes understanding:\n\n**Hormones**\n\nCertain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need.\n\n**Medication**\n\nSome drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia.\n\n**Pregnancy care**\n\nWe safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant.\n\n**Symptoms**\n\nWomen often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include:\n\n- Heart palpitations\n- Dizziness\n- Chest pain or tightness\n\nBecause women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis.\n\nWomen with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke.\n\n**Implantable monitors**\n\nAn effective treatment for arrhythmia is an [implantable loop recorder](https:\/\/stanfordhealthcare.org\/medical-tests\/i\/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor.\n\nWe also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery.\n\nclose Specialized Care for Women\n## Frequently Asked Questions for Accessing Care\nConsidering Stanford\n\nWhat areas of clinical research and innovation are Stanford doctors currently pursuing?\n\nThe Stanford Cardiac Arrhythmia Service is not only dedicated to treating its patients with the finest treatment options available, but also to advancing those treatments. Clinical research studies may be sponsored by the National Institutes of Health, other governmental agencies, or industry.\n\nWe're actively developing new approaches to arrhythmia diagnosis and treatment, including:\n\n- New device development\n- New treatments and diagnostic techniques for Atrial Fibrillation\n- New technologies for catheter ablation\n- Integration of imaging in catheter ablation\n- New treatments for arrhythmias in cardiomyopathies (hypertrophic, ischemic, nonischemic)\n- New approaches to ICD and Pacemaker therapy\n- Signal processing and mathematical techniques for diagnosis of arrhythmias\n- New diagnostic approaches to patients with inherited arrhythmic disorders\n\nWe work with the Stanford Biodesign Program—an innovative collaboration between medicine and engineering—to develop new technologies in medicine.\n\n#### Additional Research and Innovation Advancements\n- A Stanford doctor co-invented a new form of ablation treatment called [cryoablation](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cryoablation.html) (freezing), which has been used in over 200,000 patients worldwide, including patients with atrial fibrillation and supraventricular tachycardia.\n- The Stanford Center for Arrhythmia Research has assembled more than 40 faculty who represent numerous disciplines and are collaborating to solve arrhythmia related problems.\n- Stanford doctors have conducted clinical studies leading to approval of the radiofrequency energy ablation system measuring contact force to improve ablation outcomes.[Learn more about radiofrequency ablation](https:\/\/stanfordhealthcare.org\/medical-treatments\/r\/radiofrequency-ablation.html)\n- Stanford doctors and surgeons were in the first FDA clinical trial to test [hybrid surgical-catheter ablation,](https:\/\/stanfordhealthcare.org\/medical-treatments\/h\/hybrid-surgical-catheter-ablation.html) combining minimally invasive surgery with a catheter-based procedure to treat complex atrial fibrillation.\n\nWhat insurance plans does Stanford Health Care accept?\n\nWe participate in a wide range of insurance plans. [View the list of insurance plans accepted by Stanford Health Care](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/health-insurance-plans.html)\n\nHave insurance or pre-authorization questions? The **Patient Financial Clearance** team is available Monday – Friday, 8 a.m. – 5 p.m., to answer your questions. Please call **650-724-4445** or **1-877-291-7335** (toll free).\n\nHow do I find the right doctor for me?\n\nWhen choosing a doctor, it’s important to consider the doctor’s clinical training, experience and expertise in a specialized area that matches your health care needs.\n\nYou can find the right Stanford doctor for you by using our doctor directory and filtering the results based on a medical category, specialty, or doctor’s last name. [View a list of cardiac arrhythmia doctors](https:\/\/stanfordhealthcare.org\/search-results.doctors.html#&x1=sp_spec_care_phy&q1=true&x2=sp_dr_title_groups&q2=Cardiovascular%20Health&x3=sp_dr_titles&q3=Cardiac%20electrophysiologist)\n\nWhat support services are available for patients with arrhythmia?\n\nWe offer a number of support services for arrhythmia, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html#support)\n\nDo I need a doctor referral to be seen at Cardiac Arrhythmia Service?\n\nYou can call Cardiac Arrhythmia Service directly to schedule an appointment with one of our doctors. Call **650-723-6459** to make an appointment.\n\nIs financial assistance available?\n\nYes, Stanford Health Care offers financial assistance for patients who are uninsured or underinsured. Meet with one of our financial counselors to find the best approach to paying for your health care. Financial counselors are available Monday through Friday from 7:00 a.m. – 6:00 p.m. [Learn more about financial assistance services](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/financial-assistance.html)\n\nFirst Appointment\n\nWhat should I bring to my first appointment?\n\nManaging treatment for arrhythmia is a highly personalized process. Our clinic receptionists will confirm the information you should bring with you prior to your first appointment. For your first appointment, please bring the following test results and information:\n\n- [Electrocardiogram](https:\/\/stanfordhealthcare.org\/medical-tests\/e\/ekg.html) (ECG or EKG)\n- [Holter Report](https:\/\/stanfordhealthcare.org\/medical-tests\/h\/holter-monitor.html) or ECG Monitor\n- [Echocardiogram](https:\/\/stanfordhealthcare.org\/medical-tests\/e\/echocardiogram.html) (Ultrasound of the Heart)\n- [Heart MRI](https:\/\/stanfordhealthcare.org\/medical-tests\/c\/cardiac-mri.html)\n- [Heart CT](https:\/\/stanfordhealthcare.org\/medical-tests\/c\/ct-scan.html)\n- Your medical history\n- Report or results from a physical examination\n\nYou will also need to have the following information with you when you check in:\n\n- Insurance card\n- A form of payment for any co-pays or deductibles\n- One form of photo ID:\n  - Valid state-issued driver’s license\n  - Valid state-issued ID card\n  - Valid passport\n  - Valid U.S. Military ID card\n  - Valid U.S. Permanent Resident Card\n\nI need directions to the clinic. Where do I park?\n\nThe Cardiac Arrhythmia Service is located at the following address. Self-parking options are available for a fee. For more information, please see Directions and Parking information for Cardiac Arrhythmia Service:\n\n**[Cardiac Arrhythmia Service](https:\/\/stanfordhealthcare.org\/content\/shc\/en-tools\/maps\/clinics\/cardiac-arrhythmia-service.html)**\n\nPlease plan to arrive 20-30 minutes prior to your appointment time due to construction near the main hospital campus. This will allow you plenty of time to park, locate your clinic and complete any additional paperwork.\n\nHow do I send my medical record to SHC?\n\nPlease print, fill out, and return the [Medical Record Release Form](https:\/\/stanfordhealthcare.org\/content\/dam\/SHC\/for-patients-component\/cancer\/medical-record-release-form2014.pdf) to your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care.\n\nCan my family member or friend attend my appointment?\n\nAlways feel free to bring someone with you to your appointments. A family member or friend can help ask questions, remember the information your care team gives you, and provide support.\n\nWhat is the best way to get all my questions answered during my appointment?\n\nWrite down your questions before your appointment and rank them in order of importance, beginning with the most important ones. If there isn’t enough time to have all your questions answered during your appointment, ask your doctor who you can speak with to get your other questions answered.\n\nCurrent Patients\n\nHow do I reach someone if I have questions about my care?\n\nCurrent patients may reach one of our outstanding arrhythmia nurse specialists during clinic hours at**[650-723-7111](tel:\/\/650-723-7111)**. For after-hours, reach the on-call arrhythmia doctor at **[650-723-7111](tel:\/\/650-723-7111)**.\n\nHow do I pay my bill?\n\nYou have multiple options when it comes to paying your bill.\n\n- Pay Online:\n  - You can log in to [MyHealth](https:\/\/myhealth.stanfordhealthcare.org\/) or the MyHealth mobile app to see and pay your bill.\n\nAlready have an account but need help logging in?\n\n[Forgot Username?](https:\/\/myhealth.stanfordhealthcare.org\/#\/forgot-username)\n\n[Forgot Password?](https:\/\/myhealth.stanfordhealthcare.org\/Credentials\/ForgotPassword)\n\n[Contact the MyHealth Help Desk](https:\/\/myhealth.stanfordhealthcare.org\/ContactHelpDesk)\n\n- You can also [pay as a guest](https:\/\/mychart.stanfordhealthcare.org\/myhealth_sso\/billing\/guestpay\/payasguest) to pay your bill without logging in.\n- Pay by mail:\n  - Stanford Health Care  \n     P.O. Box 740715, Los Angeles, CA 90074-0715  \n     Los Angeles, CA 90074-0715\n- Pay by Phone:\n  - You can call our Patient Billing Customer Service Office  \n     **[1-800-549-3720](tel:\/\/18005493720)**.\n\nFor our latest business hours and for more information about billing, visit our [Billing](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/billing.html) page.\n\nWhat support resources are available to me?\n\nWe offer a number of support services for arrhythmia patients, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html#support)\n\nHow do I cancel or reschedule my appointment?\n\nPlease call our clinic receptionists at **[650-723-6459](tel:\/\/650-723-6459)**. They are available Monday through Friday, 8:30 a.m. to 5 p.m. to help you reschedule or cancel your appointment.\n\nHow do I know if a Clinical Trial is right for me?\n\nTo determine if a clinical trial is right for you, talk to your doctor. He or she can refer you to a research coordinator for more information on studies that may be right for your specific condition.\n\nYou can also find the guidelines for who can participate in a particular clinical trial online. However, it is best to work with your doctor to decide the right care approach for your needs.\n\n**[View list of open, arrhythmia clinical trials at Stanford](https:\/\/stanfordhealthcare.org\/search-results.trials.html\/&sp_trialLocks%7CCardiac%20Arrhythmia%20Service&RECRUITING)**\n\nInternational Patients\n\nI live overseas. How do I access Stanford care?\n\nMany of our programs are available to international patients.\n\nOur [International Medicine Services](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/international-services.html) team can help you find the right doctor, estimate medical costs, book travel, and get you information about Stanford programs and services.\n\nPlease call +1 **[650-723-8561](tel:\/\/650-723-8561)** or email [IMS@stanfordhealthcare.org](mailto:ims@stanfordhealthcare.org) to get started.\n\n### Clinical Trials\n[0 Open Clinical Trials View All](https:\/\/stanfordhealthcare.org\/application\/ct.html\/&sp_trialLocks%7CArrhythmia&RECRUITING)\n\n### Clinical Trials for Arrhythmia\nClinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.\n\nOpen trials refer to studies currently recruiting participants or that may recruit participants in the near future. Closed trials are not currently enrolling, but similar studies may open in the future.\n\nTo learn more about the clinical trials we offer, contact [Gerri O'Riordan](mailto:goriordan@stanfordhealthcare.org) at 650-725-5597.\n\n[View Closed Clinical Trials for Types](https:\/\/stanfordhealthcare.org\/application\/ct.html\/&sp_trialLocks%7CTypes&NOT_RECRUITING)\n## What Is Arrhythmia?\n\n[Overview](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia.html)\n\n[Symptoms](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/symptoms.html)\n\n[Causes](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/causes.html)\n\n[Types](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Diagnosis](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/diagnosis.html)\n\n[Overview](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia.html)\n\n[Symptoms](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/symptoms.html)\n\n[Causes](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/causes.html)\n\n[Types](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Diagnosis](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/diagnosis.html)\n\n## Arrhythmia Types\nThere are five main types of arrhythmias, described by the speed of heart rate they cause and where they begin in the heart.\n\nFor adults, a normal resting heart rate ranges from 60 to 100 beats per minute. Highly trained athletes may have resting heart rates lower than 60.\n\n**Tachycardia**\n\nThis fast heart rhythm causes a heart rate of more than 100 beats per minute.\n\n**Bradycardia**\n\nThis slow heart rhythm causes a heart rate of less than 60 beats per minute.\n\n![]() 0:21\n\n[Stanford Hospitals and Clinics: FAQ: What is atrial fibrillation?](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/videos\/atrial-fibrillation.html)\n\n[Play Video](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/videos\/atrial-fibrillation.html) \\| 0:21\n\nStanford Hospitals and Clinics: FAQ: What is atrial fibrillation?\n\nQuestion: What is atrial fibrillation? Response: Angela Tsiperfal, RN, MSN, CNS, NP -- Nurse Practitioner\n\n**Premature heartbeat**\n\nA premature, or extra, beat is a common, usually harmless type of arrhythmia that typically does not cause symptoms. Most healthy people who experience an occasional extra beat do not need treatment. However, if you have heart disease, a premature heartbeat can lead to a longer-lasting arrhythmia.\n\n**Supraventricular arrhythmias**\n\nThese arrhythmias are tachycardias that occur in the atria or the atrioventricular (AV) node, specialized tissue that conducts electrical signals from the atria to the ventricles. Types of supraventricular arrhythmias include:\n\n- [**Atrial fibrillation (AFib)**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/atrial-fibrillation.html): Irregular, rapid heartbeat that can be intermittent, long lasting, or permanent\n- [**Atrial flutter**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/atrial-flutter.html): Regular, rapid heartbeat\n- **Paroxysmal supraventricular tachycardia (PSVT):** Rapid, regular heartbeat that begins and ends suddenly\n- **Wolff-Parkinson-White syndrome:** A type of PSVT in which the heart has an extra electrical pathway between the atria and ventricles, disrupting the timing of electrical signals and causing the ventricles to beat too fast\n\n**Ventricular arrhythmias**\n\nTachycardias that begin in the lower chambers of the heart can be life-threatening and require immediate medical attention. Types of [ventricular arrhythmias](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-arrhythmia.html) include:\n\n- [**Ventricular tachycardia (VT)**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-tachycardia.html): Rapid, regular heartbeat that can last for just a few seconds or much longer, which increases the risk of becoming ventricular fibrillation\n- [**Ventricular fibrillation (VFib)**](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/ventricular-fibrillation.html): Rapid, irregular heartbeat that causes the ventricles to quiver ineffectively instead of pumping blood and can lead to sudden cardiac arrest and death within minutes, without emergency care\n- **Torsades de pointes**: A type of VT that develops in people with [long QT syndrome](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/long-qt-syndrome.html), an electrical problem that causes the heart to take longer to recharge after each heartbeat, which can lead to VFib and sudden death\n\n[Previous Section](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html) [Next Section](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n# Our Clinics\n[Cardiac Arrhythmia Service](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html)\n\nOur nationally recognized electrophysiologists provide exceptional care with a compassionate touch for people with all types of arrhythmia. Our team includes experts from several heart specialties with decades of experience in patient-centered care.\n\n![Cardiac Arrhythmia Service](https:\/\/stanfordhealthcare.org\/content\/dam\/SHC\/clinics\/locations\/300pasteurdr-stanford-2.jpg\/jcr:content\/renditions\/original)\n\nCardiac Arrhythmia Service ![Cardiac Arrhythmia Service](https:\/\/stanfordhealthcare.org\/content\/dam\/SHC\/clinics\/locations\/300pasteurdr-stanford-2.jpg\/jcr:content\/renditions\/original)  [View All Locations](https:\/\/stanfordhealthcare.org\/directory\/directory.html\/&sp_clinics%7C\/medical-clinics\/cardiac-arrhythmia-service.html%5ECardiac%20Arrhythmia%20Service#x1=sp_spec_care_clinic&q1=true)\n\n[MAKE AN APPOINTMENT](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html) [FIND A DOCTOR OR 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All Rights Reserved.\n\nClose\n\n[Share on Facebook](https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Share on X](https:\/\/twitter.com\/share?text=Types%20https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.htmlvia=StanfordHealth)\n\n[Share via email](<mailto:?subject=Types&body=Types%0DRead more about the different types of arrhythmia that are treated at Stanford. - https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html>)\n\n[Close](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Open](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Close](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Open](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Close](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Open](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Close](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Open](https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[Share on Facebook](https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html)\n\n[X (Twitter)](https:\/\/twitter.com\/share?text=Types%20https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.htmlvia=StanfordHealth)\n\n[Email](<mailto:?subject=Types&body=Types%0DRead more about the different types of arrhythmia that are treated at Stanford. - https:\/\/stanfordhealthcare.org\/medical-conditions\/blood-heart-circulation\/arrhythmia\/types.html>)","attrs_readable_markdown":"## Types of Arrhythmia\nArrhythmia describes a group of conditions that affect the heart’s natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern.\n\nThe [Stanford Cardiac Arrhythmia Center](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html) provides expert, comprehensive care for people with all types of arrhythmias. Our electrophysiologists (specialists in the heart’s electrical system), surgeons, specialty nurses, and other care providers have years of experience and specialized training in arrhythmia care.\n\nOur world-class doctors bring the latest advancements in research to our patient care, providing you with the highest quality of care available.\n\n## FEATURED\n[![Image of heartmonth-afib-qa-221x221-tile.jpg](https:\/\/stanfordhealthcare.org\/content\/shc\/en\/stanford-health-care-now\/2015\/atrial-fibrillation-qa\/jcr:content\/articleImage.transform\/221x221\/q82\/image.jpg)](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2015\/atrial-fibrillation-qa.html)\n\nMake an Appointment\n\nTo request an appointment with one of our arrhythmia specialists, call: **[650-723-7111](tel:\/\/650-723-7111)**.\n\nOur electrophysiologists and their teams have specialized expertise in all types of arrhythmia. We begin with a comprehensive diagnostic evaluation to thoroughly understand your symptoms. Our doctors are especially skilled at interpreting test results, which helps us better plan your care.\n\nWith years of experience, we are leading research and practice of innovative therapies that offer a long-term solution for arrhythmia. Our focus is on expert care that relieves your symptoms, prevents complications, and improves your health.\n\nTreatment OverviewSpecialized Care for Women\n\nAfter we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs.\n\n**Devices that treat arrhythmia**\n\nFor serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures:\n\n- [Implantable cardioverter-defibrillator (ICD)](https:\/\/stanfordhealthcare.org\/medical-treatments\/i\/icd.html)\n- [Leadless pacemaker](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2024\/successful-implant-leadless-dual-chamber-pacemaker.html)\n- [Pacemaker](https:\/\/stanfordhealthcare.org\/medical-treatments\/p\/pacemaker.html)\n- [Cardiac resynchronization therapy (CRT)](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-resynchronization-therapy.html)\n- Lead and device extraction\n\nSubcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients.\n\nLearn more about our advanced treatment options for all types of arrhythmias, including:\n\nStanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias.\n\n**Specialized Care for Women with Arrhythmia**\n\nAt Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https:\/\/stanfordhealthcare.org\/medical-clinics\/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications.\n\nOur arrhythmia care for women includes understanding:\n\n**Hormones**\n\nCertain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need.\n\n**Medication**\n\nSome drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia.\n\n**Pregnancy care**\n\nWe safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant.\n\n**Symptoms**\n\nWomen often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include:\n\n- Heart palpitations\n- Dizziness\n- Chest pain or tightness\n\nBecause women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis.\n\nWomen with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke.\n\n**Implantable monitors**\n\nAn effective treatment for arrhythmia is an [implantable loop recorder](https:\/\/stanfordhealthcare.org\/medical-tests\/i\/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor.\n\nWe also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery.\n\nTreatment Overview\n\nAfter we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs.\n\n**Devices that treat arrhythmia**\n\nFor serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures:\n\n- [Implantable cardioverter-defibrillator (ICD)](https:\/\/stanfordhealthcare.org\/medical-treatments\/i\/icd.html)\n- [Leadless pacemaker](https:\/\/stanfordhealthcare.org\/stanford-health-care-now\/2024\/successful-implant-leadless-dual-chamber-pacemaker.html)\n- [Pacemaker](https:\/\/stanfordhealthcare.org\/medical-treatments\/p\/pacemaker.html)\n- [Cardiac resynchronization therapy (CRT)](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-resynchronization-therapy.html)\n- Lead and device extraction\n\nSubcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients.\n\nLearn more about our advanced treatment options for all types of arrhythmias, including:\n\nStanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias.\n\nclose Treatment Overview\n\nSpecialized Care for Women\n\n**Specialized Care for Women with Arrhythmia**\n\nAt Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https:\/\/stanfordhealthcare.org\/medical-clinics\/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications.\n\nOur arrhythmia care for women includes understanding:\n\n**Hormones**\n\nCertain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need.\n\n**Medication**\n\nSome drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia.\n\n**Pregnancy care**\n\nWe safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant.\n\n**Symptoms**\n\nWomen often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include:\n\n- Heart palpitations\n- Dizziness\n- Chest pain or tightness\n\nBecause women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis.\n\nWomen with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke.\n\n**Implantable monitors**\n\nAn effective treatment for arrhythmia is an [implantable loop recorder](https:\/\/stanfordhealthcare.org\/medical-tests\/i\/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor.\n\nWe also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery.\n\nclose Specialized Care for Women\n\nConsidering Stanford\n\nWhat areas of clinical research and innovation are Stanford doctors currently pursuing?\n\nThe Stanford Cardiac Arrhythmia Service is not only dedicated to treating its patients with the finest treatment options available, but also to advancing those treatments. Clinical research studies may be sponsored by the National Institutes of Health, other governmental agencies, or industry.\n\nWe're actively developing new approaches to arrhythmia diagnosis and treatment, including:\n\n- New device development\n- New treatments and diagnostic techniques for Atrial Fibrillation\n- New technologies for catheter ablation\n- Integration of imaging in catheter ablation\n- New treatments for arrhythmias in cardiomyopathies (hypertrophic, ischemic, nonischemic)\n- New approaches to ICD and Pacemaker therapy\n- Signal processing and mathematical techniques for diagnosis of arrhythmias\n- New diagnostic approaches to patients with inherited arrhythmic disorders\n\nWe work with the Stanford Biodesign Program—an innovative collaboration between medicine and engineering—to develop new technologies in medicine.\n\n#### Additional Research and Innovation Advancements\n- A Stanford doctor co-invented a new form of ablation treatment called [cryoablation](https:\/\/stanfordhealthcare.org\/medical-treatments\/c\/cryoablation.html) (freezing), which has been used in over 200,000 patients worldwide, including patients with atrial fibrillation and supraventricular tachycardia.\n- The Stanford Center for Arrhythmia Research has assembled more than 40 faculty who represent numerous disciplines and are collaborating to solve arrhythmia related problems.\n- Stanford doctors have conducted clinical studies leading to approval of the radiofrequency energy ablation system measuring contact force to improve ablation outcomes.[Learn more about radiofrequency ablation](https:\/\/stanfordhealthcare.org\/medical-treatments\/r\/radiofrequency-ablation.html)\n- Stanford doctors and surgeons were in the first FDA clinical trial to test [hybrid surgical-catheter ablation,](https:\/\/stanfordhealthcare.org\/medical-treatments\/h\/hybrid-surgical-catheter-ablation.html) combining minimally invasive surgery with a catheter-based procedure to treat complex atrial fibrillation.\n\nWhat insurance plans does Stanford Health Care accept?\n\nHave insurance or pre-authorization questions? The **Patient Financial Clearance** team is available Monday – Friday, 8 a.m. – 5 p.m., to answer your questions. Please call **650-724-4445** or **1-877-291-7335** (toll free).\n\nHow do I find the right doctor for me?\n\nWhen choosing a doctor, it’s important to consider the doctor’s clinical training, experience and expertise in a specialized area that matches your health care needs.\n\nYou can find the right Stanford doctor for you by using our doctor directory and filtering the results based on a medical category, specialty, or doctor’s last name. [View a list of cardiac arrhythmia doctors](https:\/\/stanfordhealthcare.org\/search-results.doctors.html#&x1=sp_spec_care_phy&q1=true&x2=sp_dr_title_groups&q2=Cardiovascular%20Health&x3=sp_dr_titles&q3=Cardiac%20electrophysiologist)\n\nWhat support services are available for patients with arrhythmia?\n\nWe offer a number of support services for arrhythmia, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html#support)\n\nDo I need a doctor referral to be seen at Cardiac Arrhythmia Service?\n\nYou can call Cardiac Arrhythmia Service directly to schedule an appointment with one of our doctors. Call **650-723-6459** to make an appointment.\n\nIs financial assistance available?\n\nYes, Stanford Health Care offers financial assistance for patients who are uninsured or underinsured. Meet with one of our financial counselors to find the best approach to paying for your health care. Financial counselors are available Monday through Friday from 7:00 a.m. – 6:00 p.m. [Learn more about financial assistance services](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/financial-assistance.html)\n\nFirst Appointment\n\nWhat should I bring to my first appointment?\n\nManaging treatment for arrhythmia is a highly personalized process. Our clinic receptionists will confirm the information you should bring with you prior to your first appointment. For your first appointment, please bring the following test results and information:\n\n- [Electrocardiogram](https:\/\/stanfordhealthcare.org\/medical-tests\/e\/ekg.html) (ECG or EKG)\n- [Holter Report](https:\/\/stanfordhealthcare.org\/medical-tests\/h\/holter-monitor.html) or ECG Monitor\n- [Echocardiogram](https:\/\/stanfordhealthcare.org\/medical-tests\/e\/echocardiogram.html) (Ultrasound of the Heart)\n- [Heart MRI](https:\/\/stanfordhealthcare.org\/medical-tests\/c\/cardiac-mri.html)\n- [Heart CT](https:\/\/stanfordhealthcare.org\/medical-tests\/c\/ct-scan.html)\n- Your medical history\n- Report or results from a physical examination\n\nYou will also need to have the following information with you when you check in:\n\n- Insurance card\n- A form of payment for any co-pays or deductibles\n- One form of photo ID:\n  - Valid state-issued driver’s license\n  - Valid state-issued ID card\n  - Valid passport\n  - Valid U.S. Military ID card\n  - Valid U.S. Permanent Resident Card\n\nI need directions to the clinic. Where do I park?\n\nThe Cardiac Arrhythmia Service is located at the following address. Self-parking options are available for a fee. For more information, please see Directions and Parking information for Cardiac Arrhythmia Service:\n\nPlease plan to arrive 20-30 minutes prior to your appointment time due to construction near the main hospital campus. This will allow you plenty of time to park, locate your clinic and complete any additional paperwork.\n\nHow do I send my medical record to SHC?\n\nPlease print, fill out, and return the [Medical Record Release Form](https:\/\/stanfordhealthcare.org\/content\/dam\/SHC\/for-patients-component\/cancer\/medical-record-release-form2014.pdf) to your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care.\n\nCan my family member or friend attend my appointment?\n\nAlways feel free to bring someone with you to your appointments. A family member or friend can help ask questions, remember the information your care team gives you, and provide support.\n\nWhat is the best way to get all my questions answered during my appointment?\n\nWrite down your questions before your appointment and rank them in order of importance, beginning with the most important ones. If there isn’t enough time to have all your questions answered during your appointment, ask your doctor who you can speak with to get your other questions answered.\n\nCurrent Patients\n\nHow do I reach someone if I have questions about my care?\n\nCurrent patients may reach one of our outstanding arrhythmia nurse specialists during clinic hours at**[650-723-7111](tel:\/\/650-723-7111)**. For after-hours, reach the on-call arrhythmia doctor at **[650-723-7111](tel:\/\/650-723-7111)**.\n\nHow do I pay my bill?\n\nYou have multiple options when it comes to paying your bill.\n\n- Pay Online:\n  - You can log in to [MyHealth](https:\/\/myhealth.stanfordhealthcare.org\/) or the MyHealth mobile app to see and pay your bill.\n\nAlready have an account but need help logging in?\n\n[Forgot Username?](https:\/\/myhealth.stanfordhealthcare.org\/#\/forgot-username)\n\n[Forgot Password?](https:\/\/myhealth.stanfordhealthcare.org\/Credentials\/ForgotPassword)\n\n[Contact the MyHealth Help Desk](https:\/\/myhealth.stanfordhealthcare.org\/ContactHelpDesk)\n\n- You can also [pay as a guest](https:\/\/mychart.stanfordhealthcare.org\/myhealth_sso\/billing\/guestpay\/payasguest) to pay your bill without logging in.\n- Pay by mail:\n  - Stanford Health Care  \n     P.O. Box 740715, Los Angeles, CA 90074-0715  \n     Los Angeles, CA 90074-0715\n- Pay by Phone:\n  - You can call our Patient Billing Customer Service Office  \n     **[1-800-549-3720](tel:\/\/18005493720)**.\n\nFor our latest business hours and for more information about billing, visit our [Billing](https:\/\/stanfordhealthcare.org\/for-patients-visitors\/billing.html) page.\n\nWhat support resources are available to me?\n\nWe offer a number of support services for arrhythmia patients, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https:\/\/stanfordhealthcare.org\/medical-clinics\/cardiac-arrhythmia-service.html#support)\n\nHow do I cancel or reschedule my appointment?\n\nPlease call our clinic receptionists at **[650-723-6459](tel:\/\/650-723-6459)**. They are available Monday through Friday, 8:30 a.m. to 5 p.m. to help you reschedule or cancel your appointment.\n\nHow do I know if a Clinical Trial is right for me?\n\nTo determine if a clinical trial is right for you, talk to your doctor. He or she can refer you to a research coordinator for more information on studies that may be right for your specific condition.\n\nYou can also find the guidelines for who can participate in a particular clinical trial online. However, it is best to work with your doctor to decide the right care approach for your needs.\n\n**[View list of open, arrhythmia clinical trials at Stanford](https:\/\/stanfordhealthcare.org\/search-results.trials.html\/&sp_trialLocks%7CCardiac%20Arrhythmia%20Service&RECRUITING)**\n\nInternational Patients\n\nI live overseas. 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Meta Title	Types of Arrhythmia \| Stanford Health Care
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Boilerpipe Text	Types of Arrhythmia Arrhythmia describes a group of conditions that affect the heart’s natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern. The Stanford Cardiac Arrhythmia Center provides expert, comprehensive care for people with all types of arrhythmias. Our electrophysiologists (specialists in the heart’s electrical system), surgeons, specialty nurses, and other care providers have years of experience and specialized training in arrhythmia care. Our world-class doctors bring the latest advancements in research to our patient care, providing you with the highest quality of care available. FEATURED Make an Appointment To request an appointment with one of our arrhythmia specialists, call: 650-723-7111 . Our electrophysiologists and their teams have specialized expertise in all types of arrhythmia. We begin with a comprehensive diagnostic evaluation to thoroughly understand your symptoms. Our doctors are especially skilled at interpreting test results, which helps us better plan your care. With years of experience, we are leading research and practice of innovative therapies that offer a long-term solution for arrhythmia. Our focus is on expert care that relieves your symptoms, prevents complications, and improves your health. Treatment Overview Specialized Care for Women After we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs. Devices that treat arrhythmia For serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures: Implantable cardioverter-defibrillator (ICD) Leadless pacemaker Pacemaker Cardiac resynchronization therapy (CRT) Lead and device extraction Subcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. Learn more about our advanced treatment options for all types of arrhythmias, including: Stanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias. Specialized Care for Women with Arrhythmia At Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the Women’s Heart Health Clinic have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications. Our arrhythmia care for women includes understanding: Hormones Certain types of arrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need. Medication Some drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia. Pregnancy care We safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform catheter ablations without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant. Symptoms Women often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include: Heart palpitations Dizziness Chest pain or tightness Because women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis. Women with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke. Implantable monitors An effective treatment for arrhythmia is an implantable loop recorder , a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor. We also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery. Treatment Overview After we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs. Devices that treat arrhythmia For serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures: Implantable cardioverter-defibrillator (ICD) Leadless pacemaker Pacemaker Cardiac resynchronization therapy (CRT) Lead and device extraction Subcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. Learn more about our advanced treatment options for all types of arrhythmias, including: Stanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias. close Treatment Overview Specialized Care for Women Specialized Care for Women with Arrhythmia At Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the Women’s Heart Health Clinic have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications. Our arrhythmia care for women includes understanding: Hormones Certain types of arrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need. Medication Some drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia. Pregnancy care We safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform catheter ablations without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant. Symptoms Women often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include: Heart palpitations Dizziness Chest pain or tightness Because women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis. Women with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke. Implantable monitors An effective treatment for arrhythmia is an implantable loop recorder , a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor. We also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery. close Specialized Care for Women Considering Stanford What areas of clinical research and innovation are Stanford doctors currently pursuing? The Stanford Cardiac Arrhythmia Service is not only dedicated to treating its patients with the finest treatment options available, but also to advancing those treatments. Clinical research studies may be sponsored by the National Institutes of Health, other governmental agencies, or industry. We're actively developing new approaches to arrhythmia diagnosis and treatment, including: New device development New treatments and diagnostic techniques for Atrial Fibrillation New technologies for catheter ablation Integration of imaging in catheter ablation New treatments for arrhythmias in cardiomyopathies (hypertrophic, ischemic, nonischemic) New approaches to ICD and Pacemaker therapy Signal processing and mathematical techniques for diagnosis of arrhythmias New diagnostic approaches to patients with inherited arrhythmic disorders We work with the Stanford Biodesign Program—an innovative collaboration between medicine and engineering—to develop new technologies in medicine. Additional Research and Innovation Advancements A Stanford doctor co-invented a new form of ablation treatment called cryoablation (freezing), which has been used in over 200,000 patients worldwide, including patients with atrial fibrillation and supraventricular tachycardia. The Stanford Center for Arrhythmia Research has assembled more than 40 faculty who represent numerous disciplines and are collaborating to solve arrhythmia related problems. Stanford doctors have conducted clinical studies leading to approval of the radiofrequency energy ablation system measuring contact force to improve ablation outcomes. Learn more about radiofrequency ablation Stanford doctors and surgeons were in the first FDA clinical trial to test hybrid surgical-catheter ablation, combining minimally invasive surgery with a catheter-based procedure to treat complex atrial fibrillation. What insurance plans does Stanford Health Care accept? Have insurance or pre-authorization questions? The Patient Financial Clearance team is available Monday – Friday, 8 a.m. – 5 p.m., to answer your questions. Please call 650-724-4445 or 1-877-291-7335 (toll free). How do I find the right doctor for me? When choosing a doctor, it’s important to consider the doctor’s clinical training, experience and expertise in a specialized area that matches your health care needs. You can find the right Stanford doctor for you by using our doctor directory and filtering the results based on a medical category, specialty, or doctor’s last name. View a list of cardiac arrhythmia doctors What support services are available for patients with arrhythmia? We offer a number of support services for arrhythmia, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. Learn more about our support services Do I need a doctor referral to be seen at Cardiac Arrhythmia Service? You can call Cardiac Arrhythmia Service directly to schedule an appointment with one of our doctors. Call 650-723-6459 to make an appointment. Is financial assistance available? Yes, Stanford Health Care offers financial assistance for patients who are uninsured or underinsured. Meet with one of our financial counselors to find the best approach to paying for your health care. Financial counselors are available Monday through Friday from 7:00 a.m. – 6:00 p.m. Learn more about financial assistance services First Appointment What should I bring to my first appointment? Managing treatment for arrhythmia is a highly personalized process. Our clinic receptionists will confirm the information you should bring with you prior to your first appointment. For your first appointment, please bring the following test results and information: Electrocardiogram (ECG or EKG) Holter Report or ECG Monitor Echocardiogram (Ultrasound of the Heart) Heart MRI Heart CT Your medical history Report or results from a physical examination You will also need to have the following information with you when you check in: Insurance card A form of payment for any co-pays or deductibles One form of photo ID: Valid state-issued driver’s license Valid state-issued ID card Valid passport Valid U.S. Military ID card Valid U.S. Permanent Resident Card I need directions to the clinic. Where do I park? The Cardiac Arrhythmia Service is located at the following address. Self-parking options are available for a fee. For more information, please see Directions and Parking information for Cardiac Arrhythmia Service: Please plan to arrive 20-30 minutes prior to your appointment time due to construction near the main hospital campus. This will allow you plenty of time to park, locate your clinic and complete any additional paperwork. How do I send my medical record to SHC? Please print, fill out, and return the Medical Record Release Form to your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care. Can my family member or friend attend my appointment? Always feel free to bring someone with you to your appointments. A family member or friend can help ask questions, remember the information your care team gives you, and provide support. What is the best way to get all my questions answered during my appointment? Write down your questions before your appointment and rank them in order of importance, beginning with the most important ones. If there isn’t enough time to have all your questions answered during your appointment, ask your doctor who you can speak with to get your other questions answered. Current Patients How do I reach someone if I have questions about my care? Current patients may reach one of our outstanding arrhythmia nurse specialists during clinic hours at 650-723-7111 . For after-hours, reach the on-call arrhythmia doctor at 650-723-7111 . How do I pay my bill? You have multiple options when it comes to paying your bill. Pay Online: You can log in to MyHealth or the MyHealth mobile app to see and pay your bill. Already have an account but need help logging in? Forgot Username? Forgot Password? Contact the MyHealth Help Desk You can also pay as a guest to pay your bill without logging in. Pay by mail: Stanford Health Care P.O. Box 740715, Los Angeles, CA 90074-0715 Los Angeles, CA 90074-0715 Pay by Phone: You can call our Patient Billing Customer Service Office 1-800-549-3720 . For our latest business hours and for more information about billing, visit our Billing page. What support resources are available to me? We offer a number of support services for arrhythmia patients, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. Learn more about our support services How do I cancel or reschedule my appointment? Please call our clinic receptionists at 650-723-6459 . They are available Monday through Friday, 8:30 a.m. to 5 p.m. to help you reschedule or cancel your appointment. How do I know if a Clinical Trial is right for me? To determine if a clinical trial is right for you, talk to your doctor. He or she can refer you to a research coordinator for more information on studies that may be right for your specific condition. You can also find the guidelines for who can participate in a particular clinical trial online. However, it is best to work with your doctor to decide the right care approach for your needs. View list of open, arrhythmia clinical trials at Stanford International Patients I live overseas. How do I access Stanford care? Many of our programs are available to international patients. Our International Medicine Services team can help you find the right doctor, estimate medical costs, book travel, and get you information about Stanford programs and services. Clinical Trials for Arrhythmia Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials. Open trials refer to studies currently recruiting participants or that may recruit participants in the near future. Closed trials are not currently enrolling, but similar studies may open in the future. To learn more about the clinical trials we offer, contact Gerri O'Riordan at 650-725-5597.
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The [Stanford Cardiac Arrhythmia Center](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html) provides expert, comprehensive care for people with all types of arrhythmias. Our electrophysiologists (specialists in the heart’s electrical system), surgeons, specialty nurses, and other care providers have years of experience and specialized training in arrhythmia care. Our world-class doctors bring the latest advancements in research to our patient care, providing you with the highest quality of care available. ## FEATURED [![](https://img.youtube.com/vi/OBozymcv4hI/mqdefault.jpg)](https://stanfordhealthcare.org/stanford-health-care-now/videos/new-mapping-technology-target-afib.html) [New Mapping Technology Helps Target Treatment of Atrial Fibrillation](https://stanfordhealthcare.org/stanford-health-care-now/videos/new-mapping-technology-target-afib.html) [![Image of heartmonth-afib-qa-221x221-tile.jpg](https://stanfordhealthcare.org/content/shc/en/stanford-health-care-now/2015/atrial-fibrillation-qa/jcr:content/articleImage.transform/221x221/q82/image.jpg)](https://stanfordhealthcare.org/stanford-health-care-now/2015/atrial-fibrillation-qa.html) [Atrial Fibrillation Q\&A](https://stanfordhealthcare.org/stanford-health-care-now/2015/atrial-fibrillation-qa.html) [Find a Doctor or Provider](https://stanfordhealthcare.org/directory/directory.html/&sp_conditions%7C/medical-conditions/blood-heart-circulation/arrhythmia.html%5EArrhythmia#x1=sp_spec_care_phy&q1=true) [Make An Appointment](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia.html) [Learn About Clinic](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html) Make an Appointment To request an appointment with one of our arrhythmia specialists, call: [650-723-7111](tel://650-723-7111). ## Treatment for Arrhythmia Our electrophysiologists and their teams have specialized expertise in all types of arrhythmia. We begin with a comprehensive diagnostic evaluation to thoroughly understand your symptoms. Our doctors are especially skilled at interpreting test results, which helps us better plan your care. With years of experience, we are leading research and practice of innovative therapies that offer a long-term solution for arrhythmia. Our focus is on expert care that relieves your symptoms, prevents complications, and improves your health. tabs false ### ### Treatment Overview ### Specialized Care for Women ### After we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs. Devices that treat arrhythmia For serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures: - [Implantable cardioverter-defibrillator (ICD)](https://stanfordhealthcare.org/medical-treatments/i/icd.html) - [Leadless pacemaker](https://stanfordhealthcare.org/stanford-health-care-now/2024/successful-implant-leadless-dual-chamber-pacemaker.html) - [Pacemaker](https://stanfordhealthcare.org/medical-treatments/p/pacemaker.html) - [Cardiac resynchronization therapy (CRT)](https://stanfordhealthcare.org/medical-treatments/c/cardiac-resynchronization-therapy.html) - Lead and device extraction Subcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. Learn more about our advanced treatment options for all types of arrhythmias, including: Stanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias. Supraventricular arrhythmias - [Atrial fibrillation](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/atrial-fibrillation.html) - [Atrial flutter](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/atrial-flutter.html) - [Atrial tachycardia](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/supraventricular-tachycardia/types/atrial-tachycardia.html) - [Atrioventricular nodal reentrant tachycardia (AVNRT)](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/supraventricular-tachycardia/types/atrioventricular-node-reentrant-tachycardia-avnrt.html) - Atrioventricular reeentrant tachycardia - Paroxysmal supraventricular tachycardia (PSVT) - Wolff-Parkinson-White syndrome [Ventricular arrhythmias](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-arrhythmia.html) - [Ventricular fibrillation](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-fibrillation.html) - [Ventricular tachycardia](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-tachycardia.html) - Premature ventricular beats (PVCs) - Torsades de pointes Inherited arrhythmias - [Brugada syndrome](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/brugada-syndrome.html) - Catecholaminergic polymorphic ventricular tachycardia (CPVT) - [Long QT syndrome](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/long-qt-syndrome.html) [Bradycardias](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types/bradycardia.html) - Heart block - Sick sinus syndrome Specialized Care for Women with Arrhythmia At Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https://stanfordhealthcare.org/medical-clinics/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications. Our arrhythmia care for women includes understanding: Hormones Certain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need. Medication Some drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia. Pregnancy care We safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https://stanfordhealthcare.org/medical-treatments/c/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant. Symptoms Women often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include: - Heart palpitations - Dizziness - Chest pain or tightness Because women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis. Women with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke. Implantable monitors An effective treatment for arrhythmia is an [implantable loop recorder](https://stanfordhealthcare.org/medical-tests/i/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor. We also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery. Treatment Overview After we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs. Devices that treat arrhythmia For serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures: - [Implantable cardioverter-defibrillator (ICD)](https://stanfordhealthcare.org/medical-treatments/i/icd.html) - [Leadless pacemaker](https://stanfordhealthcare.org/stanford-health-care-now/2024/successful-implant-leadless-dual-chamber-pacemaker.html) - [Pacemaker](https://stanfordhealthcare.org/medical-treatments/p/pacemaker.html) - [Cardiac resynchronization therapy (CRT)](https://stanfordhealthcare.org/medical-treatments/c/cardiac-resynchronization-therapy.html) - Lead and device extraction Subcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. Learn more about our advanced treatment options for all types of arrhythmias, including: Stanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias. Supraventricular arrhythmias - [Atrial fibrillation](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/atrial-fibrillation.html) - [Atrial flutter](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/atrial-flutter.html) - [Atrial tachycardia](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/supraventricular-tachycardia/types/atrial-tachycardia.html) - [Atrioventricular nodal reentrant tachycardia (AVNRT)](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/supraventricular-tachycardia/types/atrioventricular-node-reentrant-tachycardia-avnrt.html) - Atrioventricular reeentrant tachycardia - Paroxysmal supraventricular tachycardia (PSVT) - Wolff-Parkinson-White syndrome [Ventricular arrhythmias](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-arrhythmia.html) - [Ventricular fibrillation](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-fibrillation.html) - [Ventricular tachycardia](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-tachycardia.html) - Premature ventricular beats (PVCs) - Torsades de pointes Inherited arrhythmias - [Brugada syndrome](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/brugada-syndrome.html) - Catecholaminergic polymorphic ventricular tachycardia (CPVT) - [Long QT syndrome](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/long-qt-syndrome.html) [Bradycardias](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types/bradycardia.html) - Heart block - Sick sinus syndrome close Treatment Overview Specialized Care for Women Specialized Care for Women with Arrhythmia At Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https://stanfordhealthcare.org/medical-clinics/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications. Our arrhythmia care for women includes understanding: Hormones Certain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need. Medication Some drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia. Pregnancy care We safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https://stanfordhealthcare.org/medical-treatments/c/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant. Symptoms Women often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include: - Heart palpitations - Dizziness - Chest pain or tightness Because women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis. Women with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke. Implantable monitors An effective treatment for arrhythmia is an [implantable loop recorder](https://stanfordhealthcare.org/medical-tests/i/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor. We also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery. close Specialized Care for Women ## Frequently Asked Questions for Accessing Care Considering Stanford What areas of clinical research and innovation are Stanford doctors currently pursuing? The Stanford Cardiac Arrhythmia Service is not only dedicated to treating its patients with the finest treatment options available, but also to advancing those treatments. Clinical research studies may be sponsored by the National Institutes of Health, other governmental agencies, or industry. We're actively developing new approaches to arrhythmia diagnosis and treatment, including: - New device development - New treatments and diagnostic techniques for Atrial Fibrillation - New technologies for catheter ablation - Integration of imaging in catheter ablation - New treatments for arrhythmias in cardiomyopathies (hypertrophic, ischemic, nonischemic) - New approaches to ICD and Pacemaker therapy - Signal processing and mathematical techniques for diagnosis of arrhythmias - New diagnostic approaches to patients with inherited arrhythmic disorders We work with the Stanford Biodesign Program—an innovative collaboration between medicine and engineering—to develop new technologies in medicine. #### Additional Research and Innovation Advancements - A Stanford doctor co-invented a new form of ablation treatment called [cryoablation](https://stanfordhealthcare.org/medical-treatments/c/cryoablation.html) (freezing), which has been used in over 200,000 patients worldwide, including patients with atrial fibrillation and supraventricular tachycardia. - The Stanford Center for Arrhythmia Research has assembled more than 40 faculty who represent numerous disciplines and are collaborating to solve arrhythmia related problems. - Stanford doctors have conducted clinical studies leading to approval of the radiofrequency energy ablation system measuring contact force to improve ablation outcomes.[Learn more about radiofrequency ablation](https://stanfordhealthcare.org/medical-treatments/r/radiofrequency-ablation.html) - Stanford doctors and surgeons were in the first FDA clinical trial to test [hybrid surgical-catheter ablation,](https://stanfordhealthcare.org/medical-treatments/h/hybrid-surgical-catheter-ablation.html) combining minimally invasive surgery with a catheter-based procedure to treat complex atrial fibrillation. What insurance plans does Stanford Health Care accept? We participate in a wide range of insurance plans. [View the list of insurance plans accepted by Stanford Health Care](https://stanfordhealthcare.org/for-patients-visitors/health-insurance-plans.html) Have insurance or pre-authorization questions? The Patient Financial Clearance team is available Monday – Friday, 8 a.m. – 5 p.m., to answer your questions. Please call 650-724-4445 or 1-877-291-7335 (toll free). How do I find the right doctor for me? When choosing a doctor, it’s important to consider the doctor’s clinical training, experience and expertise in a specialized area that matches your health care needs. You can find the right Stanford doctor for you by using our doctor directory and filtering the results based on a medical category, specialty, or doctor’s last name. [View a list of cardiac arrhythmia doctors](https://stanfordhealthcare.org/search-results.doctors.html#&x1=sp_spec_care_phy&q1=true&x2=sp_dr_title_groups&q2=Cardiovascular%20Health&x3=sp_dr_titles&q3=Cardiac%20electrophysiologist) What support services are available for patients with arrhythmia? We offer a number of support services for arrhythmia, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html#support) Do I need a doctor referral to be seen at Cardiac Arrhythmia Service? You can call Cardiac Arrhythmia Service directly to schedule an appointment with one of our doctors. Call 650-723-6459 to make an appointment. Is financial assistance available? Yes, Stanford Health Care offers financial assistance for patients who are uninsured or underinsured. Meet with one of our financial counselors to find the best approach to paying for your health care. Financial counselors are available Monday through Friday from 7:00 a.m. – 6:00 p.m. [Learn more about financial assistance services](https://stanfordhealthcare.org/for-patients-visitors/financial-assistance.html) First Appointment What should I bring to my first appointment? Managing treatment for arrhythmia is a highly personalized process. Our clinic receptionists will confirm the information you should bring with you prior to your first appointment. For your first appointment, please bring the following test results and information: - [Electrocardiogram](https://stanfordhealthcare.org/medical-tests/e/ekg.html) (ECG or EKG) - [Holter Report](https://stanfordhealthcare.org/medical-tests/h/holter-monitor.html) or ECG Monitor - [Echocardiogram](https://stanfordhealthcare.org/medical-tests/e/echocardiogram.html) (Ultrasound of the Heart) - [Heart MRI](https://stanfordhealthcare.org/medical-tests/c/cardiac-mri.html) - [Heart CT](https://stanfordhealthcare.org/medical-tests/c/ct-scan.html) - Your medical history - Report or results from a physical examination You will also need to have the following information with you when you check in: - Insurance card - A form of payment for any co-pays or deductibles - One form of photo ID: - Valid state-issued driver’s license - Valid state-issued ID card - Valid passport - Valid U.S. Military ID card - Valid U.S. Permanent Resident Card I need directions to the clinic. Where do I park? The Cardiac Arrhythmia Service is located at the following address. Self-parking options are available for a fee. For more information, please see Directions and Parking information for Cardiac Arrhythmia Service: [Cardiac Arrhythmia Service](https://stanfordhealthcare.org/content/shc/en-tools/maps/clinics/cardiac-arrhythmia-service.html) Please plan to arrive 20-30 minutes prior to your appointment time due to construction near the main hospital campus. This will allow you plenty of time to park, locate your clinic and complete any additional paperwork. How do I send my medical record to SHC? Please print, fill out, and return the [Medical Record Release Form](https://stanfordhealthcare.org/content/dam/SHC/for-patients-component/cancer/medical-record-release-form2014.pdf) to your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care. Can my family member or friend attend my appointment? Always feel free to bring someone with you to your appointments. A family member or friend can help ask questions, remember the information your care team gives you, and provide support. What is the best way to get all my questions answered during my appointment? Write down your questions before your appointment and rank them in order of importance, beginning with the most important ones. If there isn’t enough time to have all your questions answered during your appointment, ask your doctor who you can speak with to get your other questions answered. Current Patients How do I reach someone if I have questions about my care? Current patients may reach one of our outstanding arrhythmia nurse specialists during clinic hours at[650-723-7111](tel://650-723-7111). For after-hours, reach the on-call arrhythmia doctor at [650-723-7111](tel://650-723-7111). How do I pay my bill? You have multiple options when it comes to paying your bill. - Pay Online: - You can log in to [MyHealth](https://myhealth.stanfordhealthcare.org/) or the MyHealth mobile app to see and pay your bill. Already have an account but need help logging in? [Forgot Username?](https://myhealth.stanfordhealthcare.org/#/forgot-username) [Forgot Password?](https://myhealth.stanfordhealthcare.org/Credentials/ForgotPassword) [Contact the MyHealth Help Desk](https://myhealth.stanfordhealthcare.org/ContactHelpDesk) - You can also [pay as a guest](https://mychart.stanfordhealthcare.org/myhealth_sso/billing/guestpay/payasguest) to pay your bill without logging in. - Pay by mail: - Stanford Health Care P.O. Box 740715, Los Angeles, CA 90074-0715 Los Angeles, CA 90074-0715 - Pay by Phone: - You can call our Patient Billing Customer Service Office [1-800-549-3720](tel://18005493720). For our latest business hours and for more information about billing, visit our [Billing](https://stanfordhealthcare.org/for-patients-visitors/billing.html) page. What support resources are available to me? We offer a number of support services for arrhythmia patients, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html#support) How do I cancel or reschedule my appointment? Please call our clinic receptionists at [650-723-6459](tel://650-723-6459). They are available Monday through Friday, 8:30 a.m. to 5 p.m. to help you reschedule or cancel your appointment. How do I know if a Clinical Trial is right for me? To determine if a clinical trial is right for you, talk to your doctor. He or she can refer you to a research coordinator for more information on studies that may be right for your specific condition. You can also find the guidelines for who can participate in a particular clinical trial online. However, it is best to work with your doctor to decide the right care approach for your needs. [View list of open, arrhythmia clinical trials at Stanford](https://stanfordhealthcare.org/search-results.trials.html/&sp_trialLocks%7CCardiac%20Arrhythmia%20Service&RECRUITING) International Patients I live overseas. How do I access Stanford care? Many of our programs are available to international patients. Our [International Medicine Services](https://stanfordhealthcare.org/for-patients-visitors/international-services.html) team can help you find the right doctor, estimate medical costs, book travel, and get you information about Stanford programs and services. Please call +1 [650-723-8561](tel://650-723-8561) or email [IMS@stanfordhealthcare.org](mailto:ims@stanfordhealthcare.org) to get started. ### Clinical Trials [0 Open Clinical Trials View All](https://stanfordhealthcare.org/application/ct.html/&sp_trialLocks%7CArrhythmia&RECRUITING) ### Clinical Trials for Arrhythmia Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials. Open trials refer to studies currently recruiting participants or that may recruit participants in the near future. Closed trials are not currently enrolling, but similar studies may open in the future. To learn more about the clinical trials we offer, contact [Gerri O'Riordan](mailto:goriordan@stanfordhealthcare.org) at 650-725-5597. [View Closed Clinical Trials for Types](https://stanfordhealthcare.org/application/ct.html/&sp_trialLocks%7CTypes&NOT_RECRUITING) ## What Is Arrhythmia? [Overview](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia.html) [Symptoms](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/symptoms.html) [Causes](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/causes.html) [Types](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types.html) [Diagnosis](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/diagnosis.html) [Overview](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia.html) [Symptoms](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/symptoms.html) [Causes](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/causes.html) [Types](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types.html) [Diagnosis](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/diagnosis.html) ## Arrhythmia Types There are five main types of arrhythmias, described by the speed of heart rate they cause and where they begin in the heart. For adults, a normal resting heart rate ranges from 60 to 100 beats per minute. Highly trained athletes may have resting heart rates lower than 60. Tachycardia This fast heart rhythm causes a heart rate of more than 100 beats per minute. Bradycardia This slow heart rhythm causes a heart rate of less than 60 beats per minute. ![]() 0:21 [Stanford Hospitals and Clinics: FAQ: What is atrial fibrillation?](https://stanfordhealthcare.org/stanford-health-care-now/videos/atrial-fibrillation.html) [Play Video](https://stanfordhealthcare.org/stanford-health-care-now/videos/atrial-fibrillation.html) \\| 0:21 Stanford Hospitals and Clinics: FAQ: What is atrial fibrillation? Question: What is atrial fibrillation? Response: Angela Tsiperfal, RN, MSN, CNS, NP -- Nurse Practitioner Premature heartbeat A premature, or extra, beat is a common, usually harmless type of arrhythmia that typically does not cause symptoms. Most healthy people who experience an occasional extra beat do not need treatment. However, if you have heart disease, a premature heartbeat can lead to a longer-lasting arrhythmia. Supraventricular arrhythmias These arrhythmias are tachycardias that occur in the atria or the atrioventricular (AV) node, specialized tissue that conducts electrical signals from the atria to the ventricles. Types of supraventricular arrhythmias include: - [Atrial fibrillation (AFib)](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/atrial-fibrillation.html): Irregular, rapid heartbeat that can be intermittent, long lasting, or permanent - [Atrial flutter](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/atrial-flutter.html): Regular, rapid heartbeat - Paroxysmal supraventricular tachycardia (PSVT): Rapid, regular heartbeat that begins and ends suddenly - Wolff-Parkinson-White syndrome: A type of PSVT in which the heart has an extra electrical pathway between the atria and ventricles, disrupting the timing of electrical signals and causing the ventricles to beat too fast Ventricular arrhythmias Tachycardias that begin in the lower chambers of the heart can be life-threatening and require immediate medical attention. Types of [ventricular arrhythmias](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-arrhythmia.html) include: - [Ventricular tachycardia (VT)](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-tachycardia.html): Rapid, regular heartbeat that can last for just a few seconds or much longer, which increases the risk of becoming ventricular fibrillation - [Ventricular fibrillation (VFib)](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/ventricular-fibrillation.html): Rapid, irregular heartbeat that causes the ventricles to quiver ineffectively instead of pumping blood and can lead to sudden cardiac arrest and death within minutes, without emergency care - Torsades de pointes: A type of VT that develops in people with [long QT syndrome](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/long-qt-syndrome.html), an electrical problem that causes the heart to take longer to recharge after each heartbeat, which can lead to VFib and sudden death [Previous Section](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types.html) [Next Section](https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/arrhythmia/types.html) # Our Clinics [Cardiac Arrhythmia Service](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html) Our nationally recognized electrophysiologists provide exceptional care with a compassionate touch for people with all types of arrhythmia. Our team includes experts from several heart specialties with decades of experience in patient-centered care. ![Cardiac Arrhythmia Service](https://stanfordhealthcare.org/content/dam/SHC/clinics/locations/300pasteurdr-stanford-2.jpg/jcr:content/renditions/original) Cardiac Arrhythmia Service ![Cardiac Arrhythmia Service](https://stanfordhealthcare.org/content/dam/SHC/clinics/locations/300pasteurdr-stanford-2.jpg/jcr:content/renditions/original) [View All Locations](https://stanfordhealthcare.org/directory/directory.html/&sp_clinics%7C/medical-clinics/cardiac-arrhythmia-service.html%5ECardiac%20Arrhythmia%20Service#x1=sp_spec_care_clinic&q1=true) [MAKE AN APPOINTMENT](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html) [FIND A DOCTOR OR PROVIDER](https://stanfordhealthcare.org/directory/directory.html/&sp_clinics%7C/medical-clinics/cardiac-arrhythmia-service.html%5ECardiac%20Arrhythmia%20Service#x1=sp_spec_care_phy&q1=true) ### RELATED CLINICS [Heart Surgery Clinic in Pleasanton](https://stanfordhealthcare.org/medical-clinics/heart-surgery-clinic-pleasanton.html) ![]() 5565 W Las Positas Blvd Ste 150 5565 W Las Positas Blvd Ste 150 Pleasanton, CA 94588 Phone: [925-278-7017](tel://925-278-7017) [Heart Failure Program](https://stanfordhealthcare.org/medical-clinics/heart-failure-program.html) ![]() , Phone: [650-724-4942](tel://650-724-4942) - 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Readable Markdown	## Types of Arrhythmia Arrhythmia describes a group of conditions that affect the heart’s natural rhythm. Different types of arrhythmias cause the heart to beat too fast, too slowly, or in an irregular pattern. The [Stanford Cardiac Arrhythmia Center](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html) provides expert, comprehensive care for people with all types of arrhythmias. Our electrophysiologists (specialists in the heart’s electrical system), surgeons, specialty nurses, and other care providers have years of experience and specialized training in arrhythmia care. Our world-class doctors bring the latest advancements in research to our patient care, providing you with the highest quality of care available. ## FEATURED [![Image of heartmonth-afib-qa-221x221-tile.jpg](https://stanfordhealthcare.org/content/shc/en/stanford-health-care-now/2015/atrial-fibrillation-qa/jcr:content/articleImage.transform/221x221/q82/image.jpg)](https://stanfordhealthcare.org/stanford-health-care-now/2015/atrial-fibrillation-qa.html) Make an Appointment To request an appointment with one of our arrhythmia specialists, call: [650-723-7111](tel://650-723-7111). Our electrophysiologists and their teams have specialized expertise in all types of arrhythmia. We begin with a comprehensive diagnostic evaluation to thoroughly understand your symptoms. Our doctors are especially skilled at interpreting test results, which helps us better plan your care. With years of experience, we are leading research and practice of innovative therapies that offer a long-term solution for arrhythmia. Our focus is on expert care that relieves your symptoms, prevents complications, and improves your health. Treatment OverviewSpecialized Care for Women After we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs. Devices that treat arrhythmia For serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures: - [Implantable cardioverter-defibrillator (ICD)](https://stanfordhealthcare.org/medical-treatments/i/icd.html) - [Leadless pacemaker](https://stanfordhealthcare.org/stanford-health-care-now/2024/successful-implant-leadless-dual-chamber-pacemaker.html) - [Pacemaker](https://stanfordhealthcare.org/medical-treatments/p/pacemaker.html) - [Cardiac resynchronization therapy (CRT)](https://stanfordhealthcare.org/medical-treatments/c/cardiac-resynchronization-therapy.html) - Lead and device extraction Subcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. Learn more about our advanced treatment options for all types of arrhythmias, including: Stanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias. Specialized Care for Women with Arrhythmia At Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https://stanfordhealthcare.org/medical-clinics/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications. Our arrhythmia care for women includes understanding: Hormones Certain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need. Medication Some drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia. Pregnancy care We safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https://stanfordhealthcare.org/medical-treatments/c/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant. Symptoms Women often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include: - Heart palpitations - Dizziness - Chest pain or tightness Because women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis. Women with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke. Implantable monitors An effective treatment for arrhythmia is an [implantable loop recorder](https://stanfordhealthcare.org/medical-tests/i/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor. We also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery. Treatment Overview After we establish a diagnosis of an arrhythmia, our team examines your case to review all possible treatments. We discuss these options with you to decide on the right treatment for your specific needs. Devices that treat arrhythmia For serious arrhythmias, you may need a device to control your heart rate and rhythm. We implant these devices in your chest using minimally invasive procedures: - [Implantable cardioverter-defibrillator (ICD)](https://stanfordhealthcare.org/medical-treatments/i/icd.html) - [Leadless pacemaker](https://stanfordhealthcare.org/stanford-health-care-now/2024/successful-implant-leadless-dual-chamber-pacemaker.html) - [Pacemaker](https://stanfordhealthcare.org/medical-treatments/p/pacemaker.html) - [Cardiac resynchronization therapy (CRT)](https://stanfordhealthcare.org/medical-treatments/c/cardiac-resynchronization-therapy.html) - Lead and device extraction Subcutaneous ICDs are available. Leadless pacemakers are alternate options to standard pacemakers and may be an option for some patients. Learn more about our advanced treatment options for all types of arrhythmias, including: Stanford’s Cardiac Arrhythmia Service is one of few programs in the country with a comprehensive cardiovascular genetics program, with specialists in inherited arrhythmias. close Treatment Overview Specialized Care for Women Specialized Care for Women with Arrhythmia At Stanford, we understand that women with arrhythmia may have different health needs than men. Our specialists at the [Women’s Heart Health Clinic](https://stanfordhealthcare.org/medical-clinics/womens-heart-health.html) have advanced training in understanding the different ways arrhythmia affects women, determining the best treatment options for them, and preventing possible complications. Our arrhythmia care for women includes understanding: Hormones Certain types ofarrhythmia, like supraventricular tachycardia (SVT), may be affected by female hormones. That means that as women go through changes in their lives, such as pregnancy, breastfeeding, and menopause, their risk for developing an arrhythmia increases. Hormone involvement also means that an arrhythmia may be temporary and require short-term care. Our cardiologists work with women throughout their lives to give them the expert care they need. Medication Some drug treatments for arrhythmia may affect women differently than men. Women report more migraines when on certain medications. Women may also experience a reduced sex drive when on beta blockers, a drug commonly used to treat arrhythmia. If women are experiencing any unpleasant side effects from these drugs, our doctors find alternatives so they can live their best quality of life while managing the arrhythmia. Pregnancy care We safely treat pregnant women with arrhythmia while keeping their babies healthy. We prescribe alternative medications that are approved for pregnant and breastfeeding women. Our specialists can perform [catheter ablations](https://stanfordhealthcare.org/medical-treatments/c/cardiac-ablation.html) without using radiation, which minimizes the risk of long-term harm in women who are pregnant or wish to become pregnant. Symptoms Women often experience more symptoms of arrhythmia, particularly atrial fibrillation (AFib), than men do. Women’s symptoms may include: - Heart palpitations - Dizziness - Chest pain or tightness Because women’s arrhythmia symptoms may mirror those of other heart conditions, our providers use the latest diagnostic tools to determine an accurate diagnosis. Women with AFib also have a higher incidence of stroke than men. We monitor our patients closely and work with them to help prevent stroke. Implantable monitors An effective treatment for arrhythmia is an [implantable loop recorder](https://stanfordhealthcare.org/medical-tests/i/implantable-loop-recorder.html), a tiny device implanted under the skin near the heart to measure the heart’s electrical activity. When implanting this device, our surgeons use a special technique so women can continue to get breast cancer screenings and mammograms without disturbing the monitor. We also use special implantation techniques for women who have had a mastectomy or breast reconstructive surgery. close Specialized Care for Women Considering Stanford What areas of clinical research and innovation are Stanford doctors currently pursuing? The Stanford Cardiac Arrhythmia Service is not only dedicated to treating its patients with the finest treatment options available, but also to advancing those treatments. Clinical research studies may be sponsored by the National Institutes of Health, other governmental agencies, or industry. We're actively developing new approaches to arrhythmia diagnosis and treatment, including: - New device development - New treatments and diagnostic techniques for Atrial Fibrillation - New technologies for catheter ablation - Integration of imaging in catheter ablation - New treatments for arrhythmias in cardiomyopathies (hypertrophic, ischemic, nonischemic) - New approaches to ICD and Pacemaker therapy - Signal processing and mathematical techniques for diagnosis of arrhythmias - New diagnostic approaches to patients with inherited arrhythmic disorders We work with the Stanford Biodesign Program—an innovative collaboration between medicine and engineering—to develop new technologies in medicine. #### Additional Research and Innovation Advancements - A Stanford doctor co-invented a new form of ablation treatment called [cryoablation](https://stanfordhealthcare.org/medical-treatments/c/cryoablation.html) (freezing), which has been used in over 200,000 patients worldwide, including patients with atrial fibrillation and supraventricular tachycardia. - The Stanford Center for Arrhythmia Research has assembled more than 40 faculty who represent numerous disciplines and are collaborating to solve arrhythmia related problems. - Stanford doctors have conducted clinical studies leading to approval of the radiofrequency energy ablation system measuring contact force to improve ablation outcomes.[Learn more about radiofrequency ablation](https://stanfordhealthcare.org/medical-treatments/r/radiofrequency-ablation.html) - Stanford doctors and surgeons were in the first FDA clinical trial to test [hybrid surgical-catheter ablation,](https://stanfordhealthcare.org/medical-treatments/h/hybrid-surgical-catheter-ablation.html) combining minimally invasive surgery with a catheter-based procedure to treat complex atrial fibrillation. What insurance plans does Stanford Health Care accept? Have insurance or pre-authorization questions? The Patient Financial Clearance team is available Monday – Friday, 8 a.m. – 5 p.m., to answer your questions. Please call 650-724-4445 or 1-877-291-7335 (toll free). How do I find the right doctor for me? When choosing a doctor, it’s important to consider the doctor’s clinical training, experience and expertise in a specialized area that matches your health care needs. You can find the right Stanford doctor for you by using our doctor directory and filtering the results based on a medical category, specialty, or doctor’s last name. [View a list of cardiac arrhythmia doctors](https://stanfordhealthcare.org/search-results.doctors.html#&x1=sp_spec_care_phy&q1=true&x2=sp_dr_title_groups&q2=Cardiovascular%20Health&x3=sp_dr_titles&q3=Cardiac%20electrophysiologist) What support services are available for patients with arrhythmia? We offer a number of support services for arrhythmia, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html#support) Do I need a doctor referral to be seen at Cardiac Arrhythmia Service? You can call Cardiac Arrhythmia Service directly to schedule an appointment with one of our doctors. Call 650-723-6459 to make an appointment. Is financial assistance available? Yes, Stanford Health Care offers financial assistance for patients who are uninsured or underinsured. Meet with one of our financial counselors to find the best approach to paying for your health care. Financial counselors are available Monday through Friday from 7:00 a.m. – 6:00 p.m. [Learn more about financial assistance services](https://stanfordhealthcare.org/for-patients-visitors/financial-assistance.html) First Appointment What should I bring to my first appointment? Managing treatment for arrhythmia is a highly personalized process. Our clinic receptionists will confirm the information you should bring with you prior to your first appointment. For your first appointment, please bring the following test results and information: - [Electrocardiogram](https://stanfordhealthcare.org/medical-tests/e/ekg.html) (ECG or EKG) - [Holter Report](https://stanfordhealthcare.org/medical-tests/h/holter-monitor.html) or ECG Monitor - [Echocardiogram](https://stanfordhealthcare.org/medical-tests/e/echocardiogram.html) (Ultrasound of the Heart) - [Heart MRI](https://stanfordhealthcare.org/medical-tests/c/cardiac-mri.html) - [Heart CT](https://stanfordhealthcare.org/medical-tests/c/ct-scan.html) - Your medical history - Report or results from a physical examination You will also need to have the following information with you when you check in: - Insurance card - A form of payment for any co-pays or deductibles - One form of photo ID: - Valid state-issued driver’s license - Valid state-issued ID card - Valid passport - Valid U.S. Military ID card - Valid U.S. Permanent Resident Card I need directions to the clinic. Where do I park? The Cardiac Arrhythmia Service is located at the following address. Self-parking options are available for a fee. For more information, please see Directions and Parking information for Cardiac Arrhythmia Service: Please plan to arrive 20-30 minutes prior to your appointment time due to construction near the main hospital campus. This will allow you plenty of time to park, locate your clinic and complete any additional paperwork. How do I send my medical record to SHC? Please print, fill out, and return the [Medical Record Release Form](https://stanfordhealthcare.org/content/dam/SHC/for-patients-component/cancer/medical-record-release-form2014.pdf) to your new patient coordinator. The medical release form is an authorization form for external facilities to release medical records to Stanford Health Care. Can my family member or friend attend my appointment? Always feel free to bring someone with you to your appointments. A family member or friend can help ask questions, remember the information your care team gives you, and provide support. What is the best way to get all my questions answered during my appointment? Write down your questions before your appointment and rank them in order of importance, beginning with the most important ones. If there isn’t enough time to have all your questions answered during your appointment, ask your doctor who you can speak with to get your other questions answered. Current Patients How do I reach someone if I have questions about my care? Current patients may reach one of our outstanding arrhythmia nurse specialists during clinic hours at[650-723-7111](tel://650-723-7111). For after-hours, reach the on-call arrhythmia doctor at [650-723-7111](tel://650-723-7111). How do I pay my bill? You have multiple options when it comes to paying your bill. - Pay Online: - You can log in to [MyHealth](https://myhealth.stanfordhealthcare.org/) or the MyHealth mobile app to see and pay your bill. Already have an account but need help logging in? [Forgot Username?](https://myhealth.stanfordhealthcare.org/#/forgot-username) [Forgot Password?](https://myhealth.stanfordhealthcare.org/Credentials/ForgotPassword) [Contact the MyHealth Help Desk](https://myhealth.stanfordhealthcare.org/ContactHelpDesk) - You can also [pay as a guest](https://mychart.stanfordhealthcare.org/myhealth_sso/billing/guestpay/payasguest) to pay your bill without logging in. - Pay by mail: - Stanford Health Care P.O. Box 740715, Los Angeles, CA 90074-0715 Los Angeles, CA 90074-0715 - Pay by Phone: - You can call our Patient Billing Customer Service Office [1-800-549-3720](tel://18005493720). For our latest business hours and for more information about billing, visit our [Billing](https://stanfordhealthcare.org/for-patients-visitors/billing.html) page. What support resources are available to me? We offer a number of support services for arrhythmia patients, including cardiovascular support groups, interpreter services, nutrition services, a Lifestyle Modification Program, integrative medicine, a health library, and a variety of classes and events. [Learn more about our support services](https://stanfordhealthcare.org/medical-clinics/cardiac-arrhythmia-service.html#support) How do I cancel or reschedule my appointment? Please call our clinic receptionists at [650-723-6459](tel://650-723-6459). They are available Monday through Friday, 8:30 a.m. to 5 p.m. to help you reschedule or cancel your appointment. How do I know if a Clinical Trial is right for me? To determine if a clinical trial is right for you, talk to your doctor. He or she can refer you to a research coordinator for more information on studies that may be right for your specific condition. You can also find the guidelines for who can participate in a particular clinical trial online. However, it is best to work with your doctor to decide the right care approach for your needs. [View list of open, arrhythmia clinical trials at Stanford](https://stanfordhealthcare.org/search-results.trials.html/&sp_trialLocks%7CCardiac%20Arrhythmia%20Service&RECRUITING) International Patients I live overseas. How do I access Stanford care? Many of our programs are available to international patients. Our [International Medicine Services](https://stanfordhealthcare.org/for-patients-visitors/international-services.html) team can help you find the right doctor, estimate medical costs, book travel, and get you information about Stanford programs and services. Clinical Trials for Arrhythmia Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials. Open trials refer to studies currently recruiting participants or that may recruit participants in the near future. Closed trials are not currently enrolling, but similar studies may open in the future. To learn more about the clinical trials we offer, contact [Gerri O'Riordan](mailto:goriordan@stanfordhealthcare.org) at 650-725-5597.
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