ATLANTA (FOX 5 Atlanta) - Interventional cardiologist Dr. Wissam Jaber, Director of the Cardiac Cath Program at Emory University Hospital, is not part of Senator Bernie Sanders' care team. But, Dr.

Electrophysiology (EP) procedures are crucial in diagnosing and treating various heart rhythm disorders. They involve a doctor placing thin catheters into the heart to assess its electrical activity.