Effects of Laparoscopic Sleeve Gastrectomy on Weight Loss and Metabolic Improvement in Subjects Aged 65 Years or Older: a Subanalysis of J-SMART Study

To investigate the effect of weight loss and metabolic improvement after laparoscopic sleeve gastrectomy (LSG) in older adults aged 65 years or over compared with younger adults in a retrospective analysis. The J-SMART study database of 322 Japanese individuals with body mass index (BMI) ≥32 kg/m2 who underwent LSG between 2011 and 2014 at 10 centers accredited by the Japanese Society for Treatment of Obesity were analyzed. The subjects were classified into two groups: ≥65 age group (range, 65–76 years; n = 25) and <65 age group (range, 22–64 years; n = 297). Clinical parameters were compared between the groups. Baseline data for the ≥65 vs. <65 age groups were: median age 67 years vs. 45 years; weight 92.7 kg vs. 114.4 kg; BMI 40.0 kg/m2 vs. 41.9 kg/m2; and HbA1c 6.8