Electrophysiology and Arrhythmias


UCSF's Cardiac Electrophysiology and Arrhythmia Service is known worldwide for its pioneering work in the field. The first ablation in humans was performed at UCSF in 1981 by Dr. Melvin Scheinman. Since then, many other procedures for arrhythmias (abnormal heart rhythms) have been developed or advanced at UCSF.

We have a reputation for excellence in the evaluation and treatment of patients with a variety of cardiac arrhythmias. An experienced team of nine full-time academic cardiac electrophysiologists, as well as expert nurses and technicians, are devoted to the care of patients with abnormal heart rhythms. We perform over 500 catheter ablation procedures and 1,200 total procedures annually, including implantation of permanent pacemakers, implantable cardioverter defibrillators, and biventricular pacemakers and defibrillators. This high volume ensures efficiency and expertise in the treatment of arrhythmias.

Over the past two decades, tremendous advances have been made in understanding the mechanisms of cardiac arrhythmias. Doctors from UCSF have always been at the forefront in the assessment of the heart's electrical functions, studying arrhythmias under controlled conditions with electrophysiology (EP) studies. We design and participate in many clinical trials with the National Institutes of Health, the Food and Drug Administration and pharmaceutical and device companies to discover better treatments. This is an advantage for patients, since many of the new investigative therapies, devices and medications may be more effective for treatment than the traditional ones. Today, UCSF's Electrophysiology team successfully "cures" 95% to 98% of patients with supraventricular tachycardia (arrhythmias originating in the upper chambers of the heart), and over 75% of patients with ventricular tachycardia (arrhythmias originating in the lower chambers of the heart).

We are constantly pioneering new technology and treatments through research, but our primary goal is to provide specialized and personalized care for our patients. 

Patient Care

Learn more about treatment options and how to schedule an appointment. 

Electrophysiology CLINIC


Discover the faculty experts within the Division of Cardiology.  

Electrophysiology FACULTY


Learn more about research and clinical trials. 

Research and Clinical Trials

For more information about specific disorders or procedures, click on links below:

Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) Atrial Fibrillation Atrial Flutter
Atrial Tachycardia Catheter Ablation

Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) 

Left Atrial Appendage Closure Long QT syndrome  Short QT syndrome (SQTS)
Supraventricular Tachycardia Ventricular Tachycardia