title: Gastrojejunal anastomotic stenosis in laparoscopic gastric bypass with a circular stapler (21 mm): incidence, treatment and long-term follow-up.
abstract: BACKGROUND
  One of the keys to the long-term success of laparoscopic gastric bypass (LGBP) is performing a small-diameter gastrojejunal anastomosis, which occasionally involves an increased incidence of stenosis.
  
  
  METHODS
  Between May 2000 and October 2008, 676 patients underwent LGBP with a no. 21 circular stapler to create the gastrojejunoanastomosis (GJA). We define stenosis when clinical symptoms suggest an obstruction and it is impossible to pass a 10-mm endoscope through the GJA. The treatment of patients with stenosis was endoscopic dilation with 10-15-mm balloons.
  
  
  RESULTS
  A total of 23 patients (3.4%) developed stenosis of whom 20 were females (3%) and three males (0.4%) with a mean age of 40.7+/-11.6 years (range, 16-71 years) and a body mass index of 48.1+/-6.9 kg/m2 (range, 34-78 kg/m2). The time between surgery and the onset of symptoms was 46.8+/-24.5 days (range, 15-93 days). The stricture was resolved in all patients with endoscopic dilation: 18 patients with one dilation, three patients with two dilations and two patients with three dilations. There were no complications.
  
  
  CONCLUSIONS
  The incidence of gastrojejunal anastomotic stenosis in LGBP performed with a 21-mm circular stapler is low, and endoscopic dilation is an effective and complication-free treatment in 100% of cases.
authors.affiliation: Servicio de Cirugía General, Hospital Universitario Virgen de la Arrixaca, 30120 El Palmar, Murcia, Spain. doloresfrutos@yahoo.es
authors.forename: Maria Dolores
authors.initials: MD
authors.lastname: Frutos
authors.forename: Juan
authors.initials: J
authors.lastname: Luján
authors.forename: Arancha
authors.initials: A
authors.lastname: García
authors.forename: Quiteria
authors.initials: Q
authors.lastname: Hernández
authors.forename: Graciela
authors.initials: G
authors.lastname: Valero
authors.forename: José
authors.initials: J
authors.lastname: Gil
authors.forename: Pascual
authors.initials: P
authors.lastname: Parrilla
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000713:Anastomosis, Roux-en-Y; D002404:Catheterization / Q000379:methods; D003251:Constriction, Pathologic / Q000209:etiology / Q000628:therapy; D005260:Female; D015390:Gastric Bypass / Q000009:adverse effects*; D006801:Humans; D015994:Incidence; D007579:Jejunal Diseases / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D010535:Laparoscopy / Q000379:methods; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D013272:Stomach Diseases / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D013528:Surgical Staplers; D017792:Surgical Stapling / Q000009:adverse effects*; D016896:Treatment Outcome; D055815:Young Adult