Long-term results of ileorectal anastomosis in ulcerative colitis in Stockholm County

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Abstract
The long-term results of ileorectal anastomosis in patients with ulcerative colitis in Stockholm County over a 30-year period, 1955 to 1984, were investigated. During this time, 486 patients underwent colectomy and ileorectal anastomosis was performed in 60 of those patients (12 percent). A retrospective histologic examination of the slides of the operative specimens in the latter group revealed that nine patients had Crohn's disease. Of the 51 remaining patients with ulcerative colitis, the colectomy and ileorectal anastomosis was performed as an elective procedure in 44 cases (86 percent) and as a one-stage procedure in 48 patients (94 percent). Complications occurred in 7 of 43 patients (16 percent) undergoing an elective, one-stage procedure. There were two postoperative deaths (4 percent). There were 22 patients (43 percent) who had their ileorectal anastomosis in function at the time of follow-up, with a mean time of observation of 13 years. The cumulative probability of having the ileorectal anastomosis in function at 10 years was 51 percent. The causes of total excision were recurrent inflammation in the retained rectum (N = 23), dysplasia (N = 3), and postoperative complications (N = 3). No rectal carcinoma occurred. Patients with preoperative mild rectal disease had a better outcome (ileorectal anastomosis in function at time of follow-up) compared with patients with moderate rectal disease (P less than 0.001). The functional outcome of ileorectal anastomosis was, if anything, better than what is stated in the literature following pelvic pouch procedure.