title: [Evidential basis in bariatric surgery].
abstract: Bariatric surgery is currently considered the best treatment option for morbid obesity. With the rapid development of laparoscopic techniques, a significant increase in the number bariatric procedures in recent years can be observed. Various surgical techniques to treat morbid obesity have been described, but only few prospective studies compare the different procedures, leading to a lack of evidence for their use. However, from the available literature some general recommendations can be given: (a) preoperative workup in an interdisciplinary team is mandatory, (b) primary bariatric procedures should be performed laparoscopically, and (c) the combination of restrictive and malabsorptive techniques is more efficient than a purely restrictive method, which is also true for the treatment of comorbid diabetes and arterial hypertension. In this paper, we present recent developments in bariatric surgery, with special emphasis on the available evidence for the best treatment of morbidly obese patients.
authors.affiliation: Klinik für Viszeral- und Transplantationschirurgie, Universitätsspital Zürich, Schweiz.
authors.forename: M K
authors.initials: MK
authors.lastname: Müller
authors.forename: S
authors.initials: S
authors.lastname: Wildi
authors.forename: P-A
authors.initials: PA
authors.lastname: Clavien
authors.forename: M
authors.initials: M
authors.lastname: Weber
mesh_terms: D050110:Bariatric Surgery; D019317:Evidence-Based Medicine; D015390:Gastric Bypass; D015391:Gastroplasty; D006801:Humans; D010535:Laparoscopy; D009767:Obesity, Morbid / Q000601:surgery*; D011183:Postoperative Complications; D011446:Prospective Studies; D012086:Reoperation; D012307:Risk Factors; D015431:Weight Loss