Inappropriate therapy from a defibrillator complicating transcoronary ablation of septal hypertrophy in a patient with hypertrophic obstructive cardiomyopathy.
This case report describes a patient with obstructive hypertrophic cardiomyopathy who received therapy inappropriately from his implanted defibrillator, subsequent to transcoronary alcohol ablation for septal hypertrophy (TASH). Widening of the intracardiac electrogram postablation resulted in "double counting" of the intrinsic ventricular electrogram by the device and inappropriate tachycardia detection.
Shah
Prasad
P
Toronto General Hospital, University Health Network, University of Toronto, Ontario, Canada. Douglas.Cameron@uhn.on.ca
Harris
Louise
L
Hill
Ann
A
Schwartz
Leonard
L
Cameron
Douglas
D
D001281:Atrial Fibrillation / Q000517:prevention & control*; D002312:Cardiomyopathy, Hypertrophic / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged