Enterovesical fistula is relatively uncommon in Crohn's disease. The objective of this study is to analyze the incidence and the result of the treatment of patients with Crohn's disease at the Inflammatory Bowel Clinic of Service of Colon and Rectum of Gastroenterology Department (HCFMUSP). METHODS: 14 out of 647 patients with Crohn's disease presented enterovesical fistula between 1984 and 2006, in which all of them were treated with surgical intervention. RESULTS: 12 out of 14 patients were male and the Crohn's symptoms started with a mean age of 28,8 years. The mean age of evolution of Crohn's disease before discovering the enterovesical fistula was 155,1 months. In regard to Crohn's disease extension, there were seven patients with Crohn's disease in the small intestine, colon and perianal region; five with manifestation only in the small intestine; one had colon and perianal disease and other had small intestine and perianal disease. 13 out of 14 patients studied had Crohn's disease in small intestine. The most commonly encountered type of fistula was in the small intestine (six patients). The others patients presented enterovesical fistula in: sigmoid (four patients), entero-colo-vesical (two patients), colo-vesico-cutaneous (one patient) and entero-reto-vesical (one patient). All the patients were treated with surgical intervention involving resection of the affected bowel and closure of the bladder defect and one patient needed partial cystectomy. In the postoperative period there were two enterovesical fistula recurrences: one patient is still being treated with medical therapy and the other died. In the clinical follow-up of the other patients, eight of them are without symptoms and taking medications, three patients are asymptomatic and under no medications, and one patient is taking medications for Crohn's disease but without enterovesical fistula. CONCLUSIONS: the rate of enterovesical fistula of the Crohn's patients was 2.1 per cent. The surgical intervention involving resection of the affected bowel and closure of the bladder defect was efficient.
Crohn´s disease; surgery; enterovesical fistula
