Document Detail

Energy requirement for defibrillation of a markedly overweight patient.
MedLine Citation:
PMID:  630694     Owner:  NLM     Status:  MEDLINE    
Recommendations have been made recently that the energy output of present-day defibrillators be increased above the 400 wsec limit. These recommendations are based largely on experimental studies in animals. We report a case of a man weighing 190.1 kg (418.2 lb), successfully resuscitated with a single 400 wsec shock after a prolonged episode of ventricular fibrillation. The observation in this patient as well as data derived from cardiovascular experience indicates that weight is not a significant factor in the successful outcome following defibrillation in adults. Many variables primarily related to the clinical condition of the heart influence the results of countershock. There are no valid studies at present to support the claim that high-energy defibrillators are necessary. In fact, implementation of such a recommendation is premature and possibly dangerous.
R A DeSilva; B Lown
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Circulation     Volume:  57     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1978 Apr 
Date Detail:
Created Date:  1978-05-08     Completed Date:  1978-05-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  827-30     Citation Subset:  AIM; IM    
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MeSH Terms
Body Weight
Electric Countershock* / instrumentation
Obesity* / complications
Ventricular Fibrillation / complications,  therapy*

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

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