Catheter ablation of the atrioventricular junction and activity responsive pacing. Effect on refractory atrial fibrillation with hypertrophic cardiomyopathy.
A 50-year-old man had chronic atrial fibrillation that was refractory to conventional therapy. He was intolerant of amiodarone, but successfully managed by transcatheter atrioventricular junction ablation. Activity-initiated rate-responsive ventricular pacing resulted in a fourfold greater increase in cardiac output with exercise compared to fixed rate pacing.
D001281:Atrial Fibrillation / Q000188:drug therapy / Q000628:therapy*; D002036:Bundle of His; D006328:Cardiac Catheterization; D002312:Cardiomyopathy, Hypertrophic / Q000628:therapy*; D004599:Electric Stimulation Therapy; D006801:Humans; D008297:Male; D008875:Middle Aged