title: Late surgical complications after gastric by-pass: a literature review.
abstract: BACKGROUND
  Gastric bypass is today the most frequently performed bariatric procedure, but, despite of it, several complications can occur with varied morbimortality. Probably all bariatric surgeons know these complications, but, as bariatric surgery continues to spread, general surgeon must be familiarized to it and its management. Gastric bypass complications can be divided into two groups: early and late complications, taking into account the two weeks period after the surgery. This paper will focus the late ones.
  
  
  METHODS
  Literature review was carried out using Medline/PubMed, Cochrane Library, SciELO, and additional information on institutional sites of interest crossing the headings: gastric bypass AND complications; follow-up studies AND complications; postoperative complications AND anastomosis, Roux-en-Y; obesity AND postoperative complications. Search language was English.
  
  
  RESULTS
  There were selected 35 studies that matched the headings. Late complications were considered as: anastomotic strictures, marginal ulceration and gastrogastric fistula.
  
  
  CONCLUSIONS
  Knowledge on strategies on how to reduce the risk and incidence of complications must be acquired, and every surgeon must be familiar with these complications in order to achieve an earlier recognition and perform the best intervention.
authors.affiliation: University of Buenos Aires, Buenos Aires, Argentina.
authors.forename: Mariano
authors.initials: M
authors.lastname: Palermo
authors.affiliation: University of Buenos Aires, Buenos Aires, Argentina.
authors.forename: Pablo A
authors.initials: PA
authors.lastname: Acquafresca
authors.affiliation: Cleveland Clinic Foundation, Bariatric and Metabolic Institute, Cleveland, OH, USA.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Rogula
authors.affiliation: University of Buenos Aires, Buenos Aires, Argentina.
authors.forename: Guillermo E
authors.initials: GE
authors.lastname: Duza
authors.affiliation: University of Buenos Aires, Buenos Aires, Argentina.
authors.forename: Edgardo
authors.initials: E
authors.lastname: Serra
mesh_terms: D015390:Gastric Bypass / Q000009:adverse effects*; D005747:Gastric Fistula / Q000209:etiology; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology; D013997:Time Factors; D014456:Ulcer / Q000209:etiology