EXERCISE-INDUCED ATRIOVENTRICULAR BLOCK

Abstract

Complete atrioventricular (AV) block associated with excretion is rare. We describe the case of a 67-year-old woman with normal conduction at rest, who developed AV block during a treadmill test. She gave a history of dizziness during exercise. She had no medical history. The patient’s physical examination was normal. Electrocardiography (ECG) showed normal sinus rhythm, incomplete right bundle branch block and a first grade atrioventricular block. During treadmill test, ECG showed complete AV block. Electrophysiological study demonstrated rate dependent nodal AV block. Permanent dual chamber pace-maker was implanted to the patient. There is no any symptom after pace-maker.