A 39-year-old man presented with recurrent syncope. A 12-lead electrocardiogram and a 24-h Holter recording demonstrated atypical persistent Mobitz type I and high-degree atrioventricular block, respectively. The functional nature of the atrioventricular block was confirmed by atropine challenge, exercise testing, and electrophysiological study. The patient was successfully treated with a cardioneuroablation procedure. (Level of Difficulty: Intermediate.).
Keywords: AV, atrioventricular; AVB, atrioventricular block; CNA, cardioneuroablation; GP, ganglionated plexus; RSGP, right superior ganglionated plexus; atrioventricular block; cardioneuroablation; catheter ablation; syncope; vagal denervation.
© 2020 The Authors.