Response to Letter to the Editor: Thiamine deficiency and bariatric surgery

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O’Kane M Parretti HM Pinkney J , et al. British Obesity and metabolic surgery society guidelines on perioperative and postoperative biochemical monitoring and micronutrient replacement for patients undergoing bariatric surgery – 2020 update. Obes Rev 2020; 21: e13087.

Peterli R Wölnerhanssen BK Vetter D , et al. Laparoscopic sleeve gastrectomy versus roux- y-gastric bypass for morbid obesity - 3-year outcomes of the prospective randomized Swiss multicenter bypass or sleeve study (SM-BOSS). Ann Surg 2017; 265: 466–473.

Zhang HW Han XD Liu WJ , et al. Is roux-en-y gastric bypass advantageous? - surgical outcomes in obese patients with type-2 diabetes after gastric bypass versus sleeve gastrectomy, a matched retrospective study. Ann Transl Med 2020; 8: 372.

Lee Y Doumouras A Yu J , et al. Laparoscopic sleeve gastrectomy versus laparoscopic roux- en-y gastric bypass: a systematic review and meta-analysis of weight loss, comorbidities, and biochemical outcomes from randomized controlled trials. Ann Surg 2021; 273: 66–74.

Caughey AB . Bariatric surgery before pregnancy - is this a solution to a big problem? N Engl J Med 2015; 372: 877–878.