A Clinical Challenge Overcome by His Bundle Pacing

Abstract

We highlight a diagnostic challenge in a patient with dyspnea on exertion due to radiation therapy–induced severe first-degree atrioventricular block and how permanent His bundle pacing was helpful in overcoming these symptoms. (Level of Difficulty: Intermediate.)

Keywords

• cardiac pacemaker
• cardiac resynchronization therapy
• electroanatomic mapping
• electrocardiography
• electrophysiology
• shortness of breath