Today sleeve gastrectomy is the most performed bariatric procedure worldwide. Since 2005 it is gaining popularity as a single procedure. Long term data is scarce.~Re-Do and revisional surgery in form of re-sleeve, gastric bypass (mini -gastric bypass, roux-en y gastric bypass) and biliopancreatic diversion (BPD) is described in the current literature due to weight regain and reflux. The investigators want to analyze the frequency of this re-do/revisional surgery and want to compare weight loss and improvement in comorbidities.
Today sleeve gastrectomy is the most performed bariatric procedure worldwide. Since 2005 it is gaining popularity as a single procedure. Long term data is scarce. In this retrospective study long term follow-up in relation to weight loss, comorbidities, re-do and revisional surgery is getting analyzed.