Effect of implantable cardioverter-defibrillator shocks on QT dispersion.
Following transvenous implantable cardioverter defibrillator shocks, a significant increase in QT dispersion was observed. We suggest shock-induced increased dispersion of myocardial repolarization as one of the mechanisms of shock-induced proarrhythmia.
Gurevitz
O
O
Heart Institute and Department of Anesthesiology and Intensive Care, Sheba Medical Center, Tel Hashomer, Israel.
Yaacoby
E
E
Segal
E
E
Perel
A
A
Eldar
M
M
Kaplinsky
E
E
Glikson
M
M
D002304:Cardiac Pacing, Artificial / Q000379:methods*; D017147:Defibrillators, Implantable / Q000145:classification; D004562:Electrocardiography; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008991:Monitoring, Physiologic; D009200:Myocardial Contraction / Q000502:physiology*; D013997:Time Factors; D014693:Ventricular Fibrillation / Q000209:etiology / Q000503:physiopathology* / Q000628:therapy*