Distortion of intracardiac electrograms following defibrillator shocks for atrial tachyarrhythmias.
In three patients with a defibrillator system consisting of a Ventak P2 pulse generator and an Endotak C transvenous lead, we observed distortion of intracardiac electrograms following defibrillator shocks for atrial arrhythmias. There was a transient marked widening of the intracardiac ventricular complexes resembling ventricular tachycardia. This phenomenon should be recognized when evaluating arrhythmic episodes.
Khalighi
K
K
Department of Medicine University of Maryland Medical System, Baltimore, USA.
Florin
T J
TJ
Peters
R W
RW
Shorofsky
S R
SR
Gold
M R
MR
D000328:Adult; D000368:Aged; D001281:Atrial Fibrillation / Q000628:therapy*; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D004567:Electrodes, Implanted; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017180:Tachycardia, Ventricular / Q000175:diagnosis / Q000503:physiopathology; D014693:Ventricular Fibrillation / Q000628:therapy