Objective   To investigate the clinical effectiveness of ileum circulation loop in the treatment of familial adenomatous polyposis (FAP) and ulcerative colitis (UC) by total proctocolectomy or subtotal colectomy.    Methods   Totally 31 FAP or UC cases who receiving total or subtotal proctocolectomy in our department from January 1987 to June 2007 were divided into 2 groups according to using the ileum circulation loop or not in the different operation methods. The postoperative complications and the times of defecation in 24-hour and during night after 1 month and 1 year of operation were observed and analyzed.   Results   In the 31 cases

the incidence of postoperative complications were obviously decreased in using the loop group than in those of the without (P0.05)

meanwhile

the times of defecation in 24-hour and during night in 1 month and 1 year were lesser in the using ileum circulation loop group than those of the without (P0.01).    Conclusion   Our results indicate that the clinical outcome of using ileum circulation loop in the treatment of FAP and UC is better than that of the traditional ileal pouch-anal anastomosis.