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Cardiac Electrophysiology and Arrhythmia Service

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(415) 353-2554

The UCSF Cardiac Electrophysiology and Arrhythmia Service is known worldwide for expert evaluation and treatment of patients with a variety of heart rhythm disorders. Cardiac electrophysiology – a subspecialty of cardiology that focuses on the heart's electrical activity – is a rapidly growing field on the forefront of efforts to find new treatments and cures for arrhythmias.

With a history of innovation, UCSF's electrophysiology service has played a leading role in the tremendous advances recently made in assessing and treating abnormal heart rhythms. In the 1980s, doctors at UCSF Medical Center pioneered the use of catheter ablation, a highly successful treatment to disrupt an abnormal electrical signal that is causing an arrhythmia. Today, we use this technique to resolve a variety of cardiac arrhythmias.

Our team of experienced electrophysiologists, nurses and technicians is devoted to the care of patients with abnormal heartbeats. We perform more than 900 procedures a year, including 400 catheter ablation procedures. This depth of experience creates the foundation for our efficiency and expertise.

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 Our service also maintains a vigorous research program. Working with the National Institutes of Health, the Food and Drug Administration, and pharmaceutical or medical device companies, we carry out clinical trials – studies of experimental therapies that often lead to more effective treatments. Our patients who choose to participate in clinical trials can benefit from access to previously unknown therapies, devices or medications that may work better for them than the traditional options. In turn, our service's involvement in research and development enhances our ability to provide specialized and personalized care to our patients.

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    Explore what we do

    New arrhythmia treatment allows for faster, safer recovery

    An innovative therapy being tested at UCSF uses targeted electrical pulses to treat atrial fibrillation (A-fib), reducing the risks and time of standard treatments.

    Awards & recognition

    • usnews-neurology

      Among the top hospitals in the nation

    • One of the nation's best in cardiology and heart & vascular surgery

    Decorative Caduceus

    Volunteers to Investigate Best Results for Ablation and Novel Therapies for Atrial Fibrillation

    Time to atrial fibrillation, after employing a 3-month blanking period. Atrial Fibrillation Recurrence includes patient-reported symptoms of AF or Kardia-based ECG evidence of AF.


    Decorative Caduceus

    The MARY-JANE Cannabis and Heart Rhythm Trial

    Participants will be wearing a continuously recording ECG monitor for two weeks. The primary outcome will be change in premature atrial contraction (PAC) and PVC frequency due to cannabis consumption or avoidance during the monito...


    Decorative Caduceus

    Cryoablation for Monomorphic Ventricular Tachycardia

    Events will be adjudicated by an independent Clinical Events Committee (CEC). MAEs include any of the following: Death Acute myocardial infarction Cardiac perforation/pericardial tamponade Cerebral infarct or systemic embolism Maj...


    Decorative Caduceus

    Does Eliminating Coffee Avoid Fibrillation?

    The number of patient's with AF and/or AFlutter recurrence following direct current electrical cardioversion will be compared


    Decorative Caduceus

    The Heart Rhythm Twins Study

    This will be measured using a wearable EKG monitor.


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    Preparing for your appointment

    What to Bring

    • Photo I.D.
    • Health insurance card
    • Insurance authorization, if required
    • Doctor's referral, if required
    • Recent test results related to your condition
    • List of your medications, including dosages, plus any you're allergic to
    • List of questions you may have
    • Device or paper for taking notes

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