Document Detail

Unique interaction between an atrial single-chamber pacemaker and a ventricular defibrillator.
MedLine Citation:
PMID:  10729840     Owner:  NLM     Status:  MEDLINE    
A well described interaction between an antibradycardia pacemaker and a ventricular defibrillator is sensing of pacemaker stimuli by the ventricular defibrillator. This report describes an interaction between an atrial demand pacemaker and a ventricular defibrillator that resulted in ventricular asystole and polymorphic ventricular tachycardia. In this case, the ventricular defibrillator sensed atrial pacing stimuli when complete atrioventricular block with a slow ventricular escape rate developed. Defibrillator-based ventricular demand pacing was inhibited, resulting in prolonged periods of ventricular asystole, polymorphic ventricular tachycardia, and multiple defibrillator shocks. Ventricular defibrillator sensing of atrial pacemaker stimuli in the setting of complete atrioventricular block and ventricular asystole cannot be simulated during defibrillator implantation when atrioventricular conduction is intact. Therefore, a pacemaker programmed to atrial demand pacing in a patient with a ventricular defibrillator can result in inappropriate inhibition of ventricular pacing in the setting of complete heart block. Furthermore, this interaction can be avoided with a dual-chamber pacing ventricular defibrillator.
C Sticherling; S A Strickberger; G F Michaud
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing     Volume:  4     ISSN:  1383-875X     ISO Abbreviation:  J Interv Card Electrophysiol     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-06-13     Completed Date:  2000-06-13     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9708966     Medline TA:  J Interv Card Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  241-4     Citation Subset:  IM    
Division of Cardiology, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA.
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MeSH Terms
Defibrillators, Implantable / adverse effects*
Heart Arrest / etiology*
Heart Block
Pacemaker, Artificial / adverse effects*
Tachycardia, Ventricular / etiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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