Electrophysiology study (EP study) is a test used to evaluate your heart's electrical system and to check for abnormal heart rhythms.
Natural electrical impulses coordinate contractions of the different parts of the heart. This creates the heartbeat, or heart rhythm and keeps blood flowing the way it should.
Radiofrequency ablation (RFA)is a treatment that aims to control or correct an abnormal heart rhythm. It is carried out in the same way as an electrophysiological study (EPS) by inserting catheters into heart via the groin
