The Dutch bariatric weight loss chart: A multicenter tool to assess weight outcome up to 7 years after sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass

Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery
Arnold W van de LaarRalph P M Gadiot

Abstract

Current methods for weight loss assessment after bariatric surgery do not meet the high standards required to accurately judge patient outcome in a fair and evidence-based way. To build an evidence-based, versatile tool to assess weight loss and weight regain and identify poor responders up to 7 years after laparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG), for any preoperative body mass index (BMI). Multicenter, observational study. Bariatric weight loss charts were built with standard deviation (SD) percentile (p) curves p+2SD/p+1SD/p50(median)/p-1SD/p-2SD, based on all last measured weight results after primary LRYGB and LSG, performed in 3 large bariatric centers, expressed with percentage total weight loss (%TWL) and percentage-alterable weight loss (%AWL), a special BMI-independent metric. The p-1SD %AWL curves were compared with popular bariatric criteria 50% excess weight loss and 20%TWL. The p50 %TWL curves were compared with %TWL outcome in literature (external validation). In total, 9393 patients (5516 LRYGB, 3877 LSG, baseline BMI 43.7 (±SD 5.3) kg/m2, age 43 (±SD 10.9) years, 20% male, 21% type 2 diabetes) had mean follow-up 26 (range, 0-109) months, with .09% 30-day mortality....Continue Reading

Citations

Feb 15, 2021·The Lancet. Gastroenterology & Hepatology·Alexandre NuzzoFrancisca Joly
Nov 7, 2020·Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery·Arnold W J M van de LaarMax Nieuwdorp

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