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Influence of Body Mass Index on Recurrence and Quality of Life in Atrial Fibrillation Patients After Catheter Ablation: A Meta-Analysis and Systematic Review.
MedLine Citation:
PMID:  23494488     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Accumulating evidence has demonstrated that overweight and obesity, expressed as high body mass index (BMI), are associated with the development of atrial fibrillation (AF) and quality of life (QoL) in AF patients. However, the role of high BMI as a risk factor for prognosis and QoL in AF patients undergoing ablation remains controversial. HYPOTHESIS: We hypothesized that elevated BMI was correlated with AF recurrence and QoL after an ablative procedure. METHODS: We performed a comprehensive search of PubMed, EMBASE, and the Cochrane Library. Studies were included if they investigated the association of BMI with AF recurrence and QoL after ablation. RESULTS: Of the 151 articles identified, 12 studies that enrolled 3286 individuals met the inclusion criteria. Overall, compared with normal-BMI patients, AF recurrence occured more frequently in high-BMI patients after ablation (odds ratio: 1.32, 95% confidence interval: 1.17-1.5, P < 0.001). However, the pooled esimate of odds ratio adjusted for multiple confounders did not reach significance. The summary weighted mean difference of BMI between patients with and without recurrence was 0.43 (95% confidence interval: 0.05-0.81, P = 0.027). In addition, QoL scores were significantly lower in high-BMI than in normal-BMI patients before the ablative procedure, whereas the gap of QoL between normal-BMI and high-BMI groups was decreased at follow-up. CONCLUSIONS: Results of this meta-analysis suggest 2 points, namely that the tight association between overweight/obesity and AF recurrence after ablation may be partly due to other concomitant conditions, and that impaired QoL in high-BMI groups is significantly improved after ablation.
Authors:
Jianhui Zhuang; Yuyan Lu; Kai Tang; Wenhui Peng; Yawei Xu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-3-14
Journal Detail:
Title:  Clinical cardiology     Volume:  -     ISSN:  1932-8737     ISO Abbreviation:  Clin Cardiol     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-3-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 Wiley Periodicals, Inc.
Affiliation:
Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
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