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Improvement in Cardiovascular Indices After Roux-en-Y Gastric Bypass or Sleeve Gastrectomy for Morbid Obesity.
MedLine Citation:
PMID:  22923313     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Morbidly obese patients display cardiac abnormalities which are partially reversed after weight loss. The aim of the present study was to assess the potential difference in cardiovascular disease indices between patients who underwent either gastric bypass surgery or sleeve gastrectomy. METHODS: Thirty-seven morbidly obese patients who underwent either Roux-en-Y gastric bypass (RYGB) (n = 14) or SG (n = 23) were examined before, 3 and 6 months after surgery. Indices of cardiac autonomic nervous system activity were evaluated, namely baroreflex sensitivity (BRS) and heart rate variability (HRV). A complete echocardiographic study was performed in a subgroup of 17 patients (RYGB 8, SG 9) preoperatively and 6 months after surgery, evaluating epicardial fat thickness, aortic distensibility, left ventricular (LV) Tei index, left atrium diameter, ejection fraction, and LV mass. RESULTS: All subjects experienced significant (p < 0.001) and similar weight loss independently of the type of operation. BRS and HRV indices improved significantly and to the same degree after surgery in both groups. In the echocardiographic study, all parameters improved significantly at 6 months in comparison with the baseline values. In addition, the RYGB group displayed significantly greater reduction in epicardial fat thickness (p = 0.007) and also tended to have a better LV performance as expressed by the lower values of the Tei index (p = 0.06) compared to the SG group 6 months after surgery. CONCLUSIONS: Both RYGB and SG exert comparable effects on weight loss and improvement of cardiovascular parameters. RYGB displays a more beneficial influence on epicardial fat thickness and left ventricular performance than SG.
Authors:
Alexander Kokkinos; Kleopatra Alexiadou; Christos Liaskos; Georgia Argyrakopoulou; Ioanna Balla; Nicholas Tentolouris; Ioannis Moyssakis; Nicholas Katsilambros; Irene Vafiadis; Andreas Alexandrou; Theodoros Diamantis
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-25
Journal Detail:
Title:  Obesity surgery     Volume:  -     ISSN:  1708-0428     ISO Abbreviation:  Obes Surg     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9106714     Medline TA:  Obes Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
First Department of Propaedeutic Medicine, Laiko General Hospital, Athens University Medical School, 17 Agiou Thoma Street, 11527, Athens, Greece.
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