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Electrophysiology

Heartbeat irregularities, called arrhythmias, can lead to a variety of serious health conditions. In the Sutter Health network, we offer a full spectrum of electrophysiology services to diagnose and treat nearly every condition affecting the heart’s electrical system.

Doctor listening to elderly woman's heartbeat

Featured Services

  • Cardiac Ablation
  • Cardiac Implantable Devices
  • Cardiovascular Imaging and Diagnostic Services
  • Cardioversion
  • Watchman Implant

Chat with a Referral Specialist Monday - Friday, 8:00 am – 5:00 pm PDT

Or call (888) 834-1788.

Diagnosing and Treating Irregular Heartbeat

The heart relies on electrical impulses to beat. When the area of the heart sending the signals (the sinoatrial node) develops a problem or the electrical pathways become blocked, your heart can develop an irregular beat called an arrhythmia. This can cause worrisome symptoms such as heart palpitations or dizziness or, in serious cases, even lead to cardiac arrest.

Close up of EKG readout

Thankfully, arrhythmias can be treated using cardiac electrophysiology, the study of heart’s electrical system. Specially trained cardiologists called electrophysiologists use advanced equipment to diagnose the source of the irregular rhythm. They then can treat the problem using a number of minimally invasive methods.

Cardiac Ablation

Ablation is a minimally invasive procedure that aims to restore normal heart rhythms by destroying (ablating) any tiny areas of heart tissue causing the arrhythmias. Electrophysiologists use catheters guided by sophisticated x-ray and 3D mapping and sometimes stereotaxis (robotic navigation).

Implantable Pacemaker and Cardiac Defibrillator

A pacemaker is a device with a small, battery-powered generator and one or more wires (or leads) that monitors the electrical impulses of your heart and, when needed, produces electrical impulses to help your heart regain a regular rhythm. An electrophysiologist implants the pacemaker under the skin, usually in the chest near the shoulder, and extends tiny lead wires through a vein to your heart muscle.

Specialists may recommend a cardiac resynchronization therapy device, a specialized pacemaker, which works especially well for people at risk of heart failure and whose heart chambers do not beat in unison. It stimulates two areas of the heart – the right and left ventricles (lower chambers) and atria (upper chambers) – to help them pump more efficiently.

Depending on your type of arrhythmia, you may need an implantable cardiac defibrillator. Like a pacemaker, an ICD monitors your heartbeat and sends electrical impulses to the heart to normalize heart rhythm. However, an ICD also can detect dangerously rapid or erratic heartbeat in the heart ventricles and deliver a more powerful electric shock to immediately restore a normal heartbeat.

A particular type of ICD called a subcutaneous implantable cardioverter defibrillator places the electrode near, but not in, the heart, to reduce risks for certain patients. Ask your doctor if this type of device is optimal for your situation.

Many ICDs can record the heart's electrical patterns whenever an abnormal heartbeat occurs. Your doctor will review this data during your regular check-ups and use it to inform any future treatment. For people taking warfarin (Coumadin) to prevent blood clots after an implant, anticoagulation clinics are offered in the Sutter Health network.

WatchmanTM Implantable Device

The Sutter Health network now offers the non-surgical WatchmanTM implant device for people with atrial fibrillation. WatchmanTM may help lower your risk of stroke and eliminate the need for long-term blood thinner medications, such as warfarin.

You may be eligible for WatchmanTM if you:

  • Can take warfarin but need an alternative to long-term blood thinners.
  • Have no other reason to take blood thinners.
  • Don’t have a heart valve issue.
  • Have less than two risk factors for stroke (e.g., age 55+, diabetes, prior stroke, etc.).

The procedure to implant the WatchmanTM device requires only light sedation. Using a catheter inserted into a vein near the upper thigh or groin, the device is transported to the heart and implanted into the left atrial appendage. Once expanded, the device closes off the left atrial appendage and prevents blood from entering.

The procedure itself lasts about 30 minutes. Most people are able to walk and leave the hospital the next day. After 45 days and a doctor’s clearance, most people are able to stop taking warfarin.

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Helpful Resources

Close up of a heart pacemaker

Living With an Implantable Cardiac Device

Your pacemaker or implantable cardiac defibrillator can provide years of dependable service but it does require you to adjust some personal practices and attend to regular care and maintenance. Learn what you and your doctor can do to keep your implantable device running smoothly.

Health and Wellness

Heart Palpitations: What to Know About Thumps, Flutters and Skipped Beats

Learn More About Heart Palpitations

A racing or irregular-feeling heartbeat may be a sign of a serious problem, or just a signal that you need to stop, rest and take a few deep breaths. Learn potential causes for heart palpitations and how to know when it’s time to seek medical attention.

Learn More About Heart Palpitations Learn More About Heart Palpitations

Electrophysiology Research

Sutter Health Electrophysiology Research
Cardiac Electrophysiology, or arrhythmia is the study of the electrical functions of the cells within the heart. The electrical signals can be observed using an Electrocardiogram, or an ECG. An ECG can reveal different arrhythmic conditions such as Bradycardia, Tachycardia, and Atrial Fibrillation.

Sutter Health Electrophysiology Research Sutter Health Electrophysiology Research

Patient Stories

How Two Women Were Liberated from Atrial Fibrillation

Madlyn and Rocky share how they overcame atrial fibrillation thanks to Christopher Woods, M.D., and the team at Mills-Peninsula Medical Center.

Patient Gains New Life after Heart Surgery

Alice Santos discusses the exceptional cardiac care she received at CPMC's Kanbar Cadiac Center.

Surviving a Ventricular Fibrillation Attack

George Vaughn never had heart trouble until a sudden onset of ventricular fibrillation threatened his life.

View All Stories

Doctor Profiles

The following doctors are part of the Sutter Health network. Learn about the doctors on this site.
Michael A. Lee, M.D.

Michael A. Lee, M.D.

  • Electrophysiology

Kriegh P. Moulton, M.D.

Kriegh P. Moulton, M.D.

  • Electrophysiology

Benjamin Romick, M.D., FACC, CCDS

Benjamin Romick, M.D., FACC, CCDS

  • Electrophysiology

Gregory Engel, M.D.

Gregory Engel, M.D.

  • Electrophysiology

Subramaniam Krishnan, M.D.

Subramaniam Krishnan, M.D.

  • Electrophysiology

Raman Moradkhan, M.D.

Raman Moradkhan, M.D.

  • Electrophysiology

Walter Chien, M.D.

Walter Chien, M.D.

  • Electrophysiology

Fariba Amani, M.D.

Fariba Amani, M.D.

  • Electrophysiology

Rob A. Patrawala, M.D.

Rob A. Patrawala, M.D.

  • Electrophysiology

View All Related Doctors

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