Electrophysiology

EP studies, also known as invasive cardiac electrophysiology, are a series of examinations of the electrical activity of the heart. The heart’s electrical system generates impulses (signals) that control the heartbeat’s rhythm. An electrocardiogram (EP) allows cardiologists to get a clear picture of how the electrical signals in the heart move from one beat to the next. Electrophysiology (EP) studies are useful in determining the cause of irregular heartbeats (arrhythmias).