Document Detail

Use of multiple patches during implantation of epicardial defibrillator systems.
MedLine Citation:
PMID:  8420238     Owner:  NLM     Status:  MEDLINE    
During implantation of epicardial automatic defibrillator systems, occasional patients have difficulty in obtaining adequate defibrillation thresholds. Of 236 consecutive patients undergoing implantation of epicardial defibrillator systems, 18 patients received a 3-patch (n = 15) or 4-patch (n = 3) defibrillator system. Twelve patients who received a multiple-patch defibrillator system had a best 2-patch defibrillation energy requirement of > or = 30 J; in the remaining 6 patients less stringent clinical criteria were used in the decision to add a third defibrillator patch (defibrillation energy requirement > 18 J in 4 patients, and > 20 J in 2 patients). Technically, multiple-patch systems were made possible with either the use of Y-connectors or defibrillators allowing output to 3 patches. In 3 patients, addition of a third epicardial patch still resulted in a defibrillation energy requirement of > or = 30 J; in these 3 patients, addition of a fourth patch resulted in a defibrillation energy requirement of < or = 20 J. All patients receiving a multiple-patch defibrillator system had a reduction in defibrillation energy requirement, and 12 patients had a reduction in defibrillation energy requirement of > or = 10 J over the best 2-patch defibrillation energy requirement. In the patients who eventually had placement of a multiple-patch system, the best 2-patch defibrillation energy requirement was > 18 J in 4 patients, > 20 J in 2 patients, > or = 30 J in 9 patients, and > 40 J in 3 patients.(ABSTRACT TRUNCATED AT 250 WORDS)
J M Baerman; B P Blakeman; B Olshansky; D E Kopp; J G Kall; D J Wilber
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  71     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-02-05     Completed Date:  1993-02-05     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  68-71     Citation Subset:  AIM; IM    
Department of Medicine, Loyola University Medical Center, Maywood, Illinois 60153.
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MeSH Terms
Anti-Arrhythmia Agents / therapeutic use
Cardiac Surgical Procedures
Defibrillators, Implantable*
Electric Countershock / methods
Electric Power Supplies
Equipment Design
Follow-Up Studies
Stroke Volume / physiology
Ventricular Fibrillation / therapy
Ventricular Function, Left / physiology
Reg. No./Substance:
0/Anti-Arrhythmia Agents

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