[Sixty-one cases of acute obstructions of the colon caused by cancer. Indications for emergency surgery].

Sixty-one cases of acute malignant colonic obstruction were operated upon within 24 hours after the patient's admission, between 1979 and 1989: 10 for a right colon carcinoma, 51 for a left-sided lesion. Indications, for emergency operation were: complete clinical obstruction, iliac tenderness, radiologic ileal fluid levels and arrest on barium enema. The initial procedures consisted of 8 right hemicolectomies, and for the left-sided obstructions, 32 colostomies, 7 colectomies with immediate anastomosis, and 12 colectomies without anastomosis. Overall mortality was nil for the right side and 4% left-sided obstructions. The current surgical procedures of choice according to the authors are: right hemicolectomy for right-sided obstruction; elective colostomy for the left side. In case of doubt about the mechanism of obstruction or vitality of the colon, a midline approach for operative exploration, followed by colectomy without anastomosis is recommended. Colectomy with immediate anastomosis is possible in rare favourable cases. Subtotal colectomy is indicated in cases of ischemic lesions, caecal perforation or other colonic tumours. Intraoperative irrigation of the colon is rarely permitted in this particular variety of acute obstruction.