Document Detail

Predictors of success and effect of biphasic energy on electrical cardioversion in patients with persistent atrial fibrillation.
MedLine Citation:
PMID:  17545688     Owner:  NLM     Status:  MEDLINE    
AIMS: We sought predictors of successful electrical cardioversion (ECV) and the effect of biphasic energy in patients considered candidates for rhythm control. METHODS AND RESULTS: The patients were drawn from a registry, which included prospectively 1355 consecutive patients with persistent atrial fibrillation who underwent ECV in 96 Spanish hospitals. Successful ECV was considered excluding patients with an early relapse. Factors related to successful cardioversion were evaluated using logistic regression with the patients segregated with respect to the use of monophasic or biphasic energy. Sinus rhythm was restored in 92% of the patients, of which, 5% had an early relapse. Thus, we considered that a successful ECV was achieved in 87% of patients. Body surface area was the only factor independently related to failure of the monophasic energy cardioversion (OR = 0.20; P = 0.001). No single factor was predictive of biphasic energy cardioversion failure. Biphasic energy was more effective in restoring sinus rhythm in patients with body surface area >2.05 m(2) (83% success in monophasic vs. 92% in biphasic; P = 0.02). CONCLUSION: Body surface area was the only factor related to the success of ECV, but only in patients treated with monophasic energy. Biphasic energy should be the technique-of-choice in patients with a large body surface area.
Josep M Alegret; Xavier Viñolas; Jaume Sagristá; Antonio Hernandez-Madrid; Luisa Pérez; Xavier Sabaté; Lluís Mont; Alfonso Medina;
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-06-02
Journal Detail:
Title:  Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology     Volume:  9     ISSN:  1099-5129     ISO Abbreviation:  Europace     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-10-01     Completed Date:  2008-04-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883649     Medline TA:  Europace     Country:  England    
Other Details:
Languages:  eng     Pagination:  942-6     Citation Subset:  IM    
Sección de Cardiología, Hospital Universitari de Sant Joan de Reus, c/Sant Joan s/n, 43201 Reus, Spain.
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MeSH Terms
Arrhythmias, Cardiac / diagnosis*
Atrial Fibrillation / diagnosis*
Body Surface Area
Echocardiography / methods
Electric Countershock*
Middle Aged
Models, Statistical
Regression Analysis
Treatment Outcome

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