Cardiac Electrophysiology Study

**Semantic type:** Diagnostic Procedure

**Definition:** A cardiac procedure performed under fluoroscopy to determine the area of the heart that is the source of aberrant electrical impulses that give rise to arrhythmias. Aberrant pathways can be terminated by ablation.

**Synonyms:** - Cardiac Electrophysiology - Cardiac Electrophysiology - EP Study - EP Test - EP study/EP test - EPS