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  • Title: Resected gastric volume has no influence on early weight loss after laparoscopic sleeve gastrectomy.
    Author: Du X, Luo R, Chen YY, Peng BQ, Hu JK, Cheng Z.
    Journal: Surg Obes Relat Dis; 2018 Feb; 14(2):129-135. PubMed ID: 29217130.
    Abstract:
    BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) has become a popular procedure for treatment of obesity, but it is still undecided whether resected gastric volume (RGV) is related to weight loss after LSG. OBJECTIVE: The aim of this study was to investigate the influence of RGV and other factors on weight loss at 1 year after LSG in a Chinese population. SETTING: University Hospital, China. METHODS: A total of 53 patients who underwent LSG between August 2015 and July 2016 were enrolled. The LSG procedure and RGV measurement were performed using standardized techniques. Patients were followed-up every 3 months in the first year and 6 monthly after that. Correlations between the percentage of excess weight loss at 1 year (%EWL-1 yr) and RGV and other parameters were evaluated. RESULTS: All patients completed at least 1 year of follow-up. No major complications or cases of underweight were seen. Mean body mass index (BMI) at 1 year after LSG was significantly lower than the baseline BMI (31.1 ± 3.8 kg/m2 versus 39.0 ± 6.6 kg/m2; P<.001). Mean %EWL-1 yr was 58.8%, and mean RGV was 862.6 ± 209.5 mL. No correlation was observed between %EWL-1 yr and RGV (r = -0.071; P = .613). The %EWL-1 yr was correlated with preoperative weight, BMI, RGV/weight, and RGV/BMI. RGV was positively correlated with preoperative weight and BMI. Patients who achieved satisfactory weight loss (%EWL ≥50%) had significantly lower baseline BMI, and higher RGV/weight and RGV/BMI, than those who had inadequate weight loss. However, RGV was not significantly different between the 2 groups. CONCLUSIONS: Weight loss effect at 1 year after LSG was not associated with RGV in this Chinese population. RGV was influenced by the weight and BMI.
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