[Incidence of severe local complications in ulcerative colitis and Crohn disease].

At the example of the severe and foudroyant courses of the ulcerous colitis in patients who died or underwent a resection (n = 93) the severe local complications are demonstrated. 70 patients with resection of the intestine, 21 patients with diagnostic laparotomy as well as 32 deceased patients with Crohn's disease were compared with them. Transmigration peritonitides (3.3% of 458 patients with ulcerous colitis except haemorrhagic proctitis), perforation peritonitides (2.0%) as well as the toxic megacolon (3.3%) alone or in combination are the most frequent severe complications. Therapy-resistant intestinal haemorrhages (1.1%) are infrequent. In 0.9% of the cases colorectal carcinomata appear. The acute or chronic mechanical ileus is the most frequent complication in Crohn's disease (21.1% of 171 patients altogether). Intraabdominal abscesses are found in 11.7%. In participation of the colon fistulae are nearly twice as frequent as in localisation of the small intestine. Free perforations of the small intestine (3.8%) are more frequently observed than perforations of the colon (2.2%).