Document Detail

Intradevice interaction in a dual chamber implantable cardioverter defibrillator preventing ventricular tachyarrhythmia detection.
MedLine Citation:
PMID:  11083251     Owner:  NLM     Status:  MEDLINE    
Failure to detect ventricular tachycardia and/or ventricular fibrillation by implantable cardioverter defibrillators (ICDs) is a rare but serious problem. We report a case of failure to detect an episode of induced ventricular tachycardia by a dual chamber ICD, due to abbreviation of ventricular detection window secondary to programmed pacing parameters and a rate-smoothing algorithm. In this patient, the intradevice interaction was corrected by programming rate-smoothing off. This report highlights the potentially lethal consequences of critical timing relationships among the pacing function, arrhythmia detection, and the characteristics of the arrhythmia when using a modern dual chamber ICD. Physicians responsible for patients with ICDs must be aware of such interactions.
K Shivkumar; Z Feliciano; N G Boyle; I Wiener
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Journal of cardiovascular electrophysiology     Volume:  11     ISSN:  1045-3873     ISO Abbreviation:  J. Cardiovasc. Electrophysiol.     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2001-02-12     Completed Date:  2001-03-01     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9010756     Medline TA:  J Cardiovasc Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1285-8     Citation Subset:  IM    
Division of Cardiology, UCLA Medical Center, UCLA School of Medicine, Los Angeles, California, USA.
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MeSH Terms
Cardiac Pacing, Artificial / adverse effects*
Defibrillators, Implantable / adverse effects*
Equipment Failure
Middle Aged
Tachycardia, Ventricular / diagnosis*
Comment In:
J Cardiovasc Electrophysiol. 2001 May;12(5):619   [PMID:  11386529 ]
J Cardiovasc Electrophysiol. 2001 May;12(5):619-21   [PMID:  11386530 ]

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