PMID: 8450157Mar 15, 1993Paper

Importance of abortive shock capability with electrogram storage in cardioverter-defibrillator devices

Journal of the American College of Cardiology
J L HurwitzF E Marchlinski

Abstract

This study evaluates the ability of a third-generation cardioverter-defibrillator to abort energy delivery and the importance of electrogram storage in analyzing the aborted events. In the Cadence Tiered Therapy Defibrillator, when a tachycardia satisfies detection criteria for cardioversion or defibrillation therapy, high voltage capacitors begin charging. The Cadence defibrillator continues monitoring the rhythm during charging and if the rate decreases to below the rate triggering therapy, charging is terminated. This event is registered as an aborted shock. The defibrillator also has the ability to store intracardiac electrogram recordings of the electrical events that precipitate device therapy or aborted shocks. During a mean follow-up interval of 10 +/- 7 months, 55 aborted events were registered by the Cadence defibrillator in 18 of the 49 patients who received it. Thirty-two stored ventricular electrograms of events leading to aborted shocks were available for analysis in 15 patients. Intracardiac electrogram recordings demonstrated the probable electrical events leading to these aborted shocks included nonsustained ventricular tachycardia (n = 10), nonsustained rapid polymorphic ventricular tachycardia/ventricular fib...Continue Reading

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Citations

Mar 1, 1997·Herzschrittmachertherapie & Elektrophysiologie·D MüllerG Steinbeck
Apr 7, 2006·Clinical Research in Cardiology : Official Journal of the German Cardiac Society·J C J ResL Jordaens
Mar 15, 1995·Journal of the American College of Cardiology·M A WoodK A Ellenbogen
Jul 10, 2009·Regional Anesthesia and Pain Medicine·Baskar P Manickam, Richard Brull
Jan 1, 1995·Pacing and Clinical Electrophysiology : PACE·H J TrappeB Kielblock
Dec 1, 1996·Pacing and Clinical Electrophysiology : PACE·R LampertW Batsford
May 1, 1996·Pacing and Clinical Electrophysiology : PACE·E B SgarbossaS L Pinski
Mar 1, 1997·Pacing and Clinical Electrophysiology : PACE·A O PeraltaD T Martin
Jan 1, 1997·Pacing and Clinical Electrophysiology : PACE·A MadridC Moro Serrano
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Jun 20, 1998·Pacing and Clinical Electrophysiology : PACE·B H SarterF E Marchlinski
Oct 1, 1995·Journal of Cardiovascular Electrophysiology·F E MarchlinskiM Preminger
Mar 1, 1996·Journal of Cardiovascular Electrophysiology·J M Miller, H H Hsia
Jun 1, 1996·Journal of Cardiovascular Electrophysiology·M J Reiter, D E Mann
Jun 25, 2015·Circulation Journal : Official Journal of the Japanese Circulation Society·Taro TenmaHiroyuki Tsutsui
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