Setting of relatively low energy outputs may permit implantation of a nonthoracotomy automatic cardioverter defibrillator system when high energy outputs prove ineffective

Stephen L. Winters, Alfred S. Casale, Thomas V. Inglesby, Jay H. Curwin

Research output: Contribution to journalArticle

Abstract

At intraoperative testing of de fibrillation thresholds during implantation of internal cardioverter defibrillators, standard step-down approaches of energy outputs are used. If relatively high energy outputs are not successful at defibrillating the heart, the electrodes are frequently reconfigured. When attempting implantation of a nonthoracotomy lead system, high defibrillation thresholds may warrant opening of the chest cavity to place one or more epicardial electrodes. A case is presented where o nonthoracotomy system was able to be implanted using relatively low energy outputs which were reproducibly successful at terminating ventricular fibrillation when higher energy outputs were unsuccessful. Mechanisms for this phenomenon and alternate recommendations for defibrillation testing are presented.

Original languageEnglish (US)
Pages (from-to)1516-1518
Number of pages3
JournalPACE - Pacing and Clinical Electrophysiology
Volume19
Issue number10
DOIs
StatePublished - Oct 19 1996
Externally publishedYes

Keywords

  • automatic cardioverter defibrillator
  • ventricular fibrillation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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