Electrophysiology Studies ( EP Studies )
Electrophysiology Studies (EPS) are tests that help doctors understand the nature of abnormal heart rhythms (arrhythmias). Quick facts. Electrophysiology studies test the electrical activity of your heart to find where an arrhythmia (abnormal heartbeat) is coming from. A cardiac electrophysiology study is a minimally invasive procedure that tests the electrical conduction system of the heart to assess the electrical activity and conduction pathways of the heart.
