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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Goday, A.
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article
Correlation of Gastric Volume and Weight Loss 5 Years Following Sleeve Gastrectomy.
Abstract
<h4>Introduction</h4>The volume of the gastric reservoir (VGR) after sleeve gastrectomy influences weight loss in the short-term, but long-term results are scarce. The aim was to analyze the correlation between the VGR and weight loss at 5 years of follow-up.<h4>Methods</h4>It is a prospective observational study of 50 patients undergoing sleeve gastrectomy (SG) from February 2009 to December 2013. An upper gastrointestinal series was performed at 1 month and at 1 and 5 years after surgery. A composite formula was used for VGR estimation. Weight loss-related data included the following: body mass index (BMI), percentage of excess weight loss (%EWL), and percentage of excess BMI loss (%EBMIL) at 1 month and at 1 and 5 years. Uni- and multivariate analyses were carried out to determine other factors that might influence long-term weight loss results.<h4>Results</h4>The %EWL at 1 year was 74.5(63.8-86) vs. 55.5(47-74.3) at 5 years (p < 0.001). The VGR 1 month after surgery was 114.9 (90.5-168.3) mL. The VGR increased from 216.7 (155.1-278.6) to 367.5 (273-560.3) mL (p < 0.001) at 1 and 5 years. Although a significant inverse correlation was observed between VGR and BMI, %EWL, and %EBMIL at 1 year, it disappeared at 5 years. In the multivariate analysis, the main factor to predict worse weight results at 5 years was a pre-surgical BMI ≥ 50 kg/m<sup>2</sup>.<h4>Conclusion</h4>The VGR increased progressively during the study period. Although an inverse relationship between VGR and weight was found at 1 year, this correlation did not remain at 5 years. A preoperative BMI ≥ 50 kg/m<sup>2</sup> is the main predictive factor of poor weight outcomes.