Telemetry-documented, pace-terminable ventricular tachycardia in patients with ventricular fibrillation.
The follow-up prevalence of electrogram-confirmed spontaneous ventricular tachycardia with a cycle length of >280 ms (53%) exceeds the prevalence of ventricular fibrillation (23%) in patients whose only spontaneous arrhythmia before implantable cardioverter defibrillator implantation was ventricular fibrillation. Antitachycardia pacing therapy safely terminates most (89%) of these slower ventricular tachycardia episodes, recommending the use of tiered-therapy devices and anticipatory activation of ventricular tachycardia detection and treatment algorithms for ventricular fibrillation patients who receive an implantable cardioverter defibrillator.
Exner
D V
DV
Department of Medicine, the University of Calgary, Alberta, Canada.
Gillis
A M
AM
Sheldon
R S
RS
Wyse
D G
DG
Duff
H J
HJ
Cassidy
P R
PR
Mitchell
L B
LB
D004562:Electrocardiography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013686:Telemetry; D016896:Treatment Outcome; D014693:Ventricular Fibrillation / Q000503:physiopathology / Q000628:therapy*