Mini Gastric Bypass: first report of 125 consecutive cases from United Kingdom

Summary Mini Gastric Bypass is a promising bariatric procedure with multiple apparent benefits. Ours is the first unit within the National Health Service of the United Kingdom to be routinely performing this procedure. This retrospective cohort study reports our experience with first 125 procedures. Data were retrospectively analysed from a prospective database. Information was further supplemented by interviewing team members, contacting patients' general practitioners and telephonic follow-up. The mean follow-up was 11.4 months. There were 86 (68.8%) females and the mean age was 45 (range 20–70) years. Mean weight and body mass index was 135.8 (range 85–244) kilograms and 48.1 (range 34.5–73.8) kg m−2, respectively. The mean operating time was 92.4 (range 45–150) minutes and the mean post-operative hospital stay was 2.2 (range 2–17) days. There was no leak, one 30-day reoperation and no mortality in this study. Three patients required late reoperations and four patients developed marginal ulcers. At 6 months follow-up (n = 114), 27.5 (range 11.4–47.4) % total body weight loss and 60.1 (range 23.2–117.5) % excess body weight loss was seen. The figures at 12 months follow-up (n = 65) were 36.8 (range 23.7–55.4) % and 79.5 (range 44.9–138.3) %, respectively. This study demonstrates early safety and efficacy of Mini Gastric Bypass in a carefully selected British obese population in a high-volume centre.