An electrophysiology (EP) study is a test that records the electrical activity and the electrical pathways of your heart. This test is used to help determine the cause of your heart rhythm disturbance and the best treatment for you. During the EP study, your doctor will safely reproduce your abnormal heart rhythm and then may give you different medications to see which one controls it best or to determine the best procedure or device to treat your heart rhythm.

Why is EP Study Needed?

The beating of the heart is controlled by the heart’s electrical system. The electrical system controls the speed and rhythm of your heartbeat. If a problem occurs in the electrical system, the heart rhythm may be disrupted resulting in an irregular heart beats or arrhythmias. These arrhythmias can cause the heart to pump less effectively.

In order to diagnose an arrhythmia, your physician would order a test. The test or otherwise known as an EP study is an invasive test to study the electrical activity of the heart by inserting one or more catheters from the blood vessels in the groin region to inside the heart chambers.

An EP Study Would

  • Determine the cause of an abnormal heart rhythm
  • Locate the site of the origin of the abnormal rhythm
  • Provide accurate information to determine the best treatment for an abnormal rhythm

State-of-the-Art Technology

The catheterization and elctrophysiology laboratories in the Torrance Memorial Lundquist Lurie Cardiovascular Institute were the first to attain the state-of-the-art anatomical mapping system, CARTO3, which enhances physician’s ability to track the catheter’s position during EP procedures to locate and treat the area(s) that are causing arrhythmias. The speed, precision and clarity of the updated system are especially important in treatment of atrial fibrillation or "A Fib."

Find A Physician

Your Heart Specialist

Our Heart Rhythm Program

The most experienced heart rhythm program in the South Bay