Electrophysiology

Electrophysiology is a medical specialty that focuses on the electrical activity of the heart and the diagnosis and treatment of heart rhythm disorders (arrhythmias). It involves the use of specialized techniques and equipment to study the electrical signals that control the heartbeat.

During an electrophysiology study (EPS), a thin, flexible tube (catheter) is inserted into a blood vessel in the groin, arm, or neck and guided through the blood vessels to the heart. Small electrodes on the catheter record the electrical signals in the heart, and a computer analyzes the signals to identify any abnormalities or areas of the heart that are causing arrhythmias.