title: Acute colorectal obstruction: treatment with self-expandable metallic stents before scheduled surgery--results of a multicenter study.
abstract: OBJECTIVE
  To evaluate the efficacy of treatment with self-expandable metallic stents for acute colonic obstruction before elective surgical resection.
  
  
  METHODS
  In 71 patients with malignant obstruction seen from October 1993 through December 1996, lesions were located in the transverse colon in one patient, in the descending colon in 22 patients, and in the rectosigmoid region in 48. A total of 72 self-expandable metallic stents were implanted within 24 hours of diagnosis.
  
  
  RESULTS
  Technical success was obtained in 64 patients (90%). In two cases (3%), it was not possible to advance across the obstructing mass. In five cases (7%), the prostheses were poorly positioned at the site of obstruction, requiring placement of a new stent in three cases. Clinical improvement and resolution of the obstruction were confirmed in 66 patients (93%) within 96 hours. Minor complications developed in nine cases (13%). One patient (1%) underwent surgery to resolve a colonic perforation caused by wires at the ends of the stent. The mean time between stent placement and surgery was 8.6 days (range, 6-16 days).
  
  
  CONCLUSIONS
  Implantation of colorectal stents is a safe treatment of acute malignant colonic obstruction before resection.
authors.affiliation: Radiology Service, Hospital Central del Insalud de Soria, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Mainar
authors.forename: M A
authors.initials: MA
authors.lastname: De Gregorio Ariza
authors.forename: E
authors.initials: E
authors.lastname: Tejero
authors.forename: R
authors.initials: R
authors.lastname: Tobío
authors.forename: E
authors.initials: E
authors.lastname: Alfonso
authors.forename: I
authors.initials: I
authors.lastname: Pinto
authors.forename: M
authors.initials: M
authors.lastname: Herrera
authors.forename: J A
authors.initials: JA
authors.lastname: Fernández
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003108:Colonic Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D015179:Colorectal Neoplasms / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D008297:Male; D008670:Metals; D008875:Middle Aged; D010166:Palliative Care; D015641:Radiography, Interventional; D012002:Rectal Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D015607:Stents / Q000009:adverse effects
chemical_list: D008670:Metals