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  • Title: Functional outcome of stapled ileal pouch-anal canal anastomosis versus handsewn pouch-anal anastomosis.
    Author: Saigusa N, Kurahashi T, Nakamura T, Sugimura H, Baba S, Konno H, Nakamura S.
    Journal: Surg Today; 2000; 30(7):575-81. PubMed ID: 10930221.
    Abstract:
    This study was conducted to determine whether stapled ileal pouch-anal canal anastomosis (IACA) preserving the anal transitional zone (ATZ) or hand-sewn ileal pouch-anal anastomosis with mucosectomy (IPAA) is more beneficial in achieving disease eradication and better postoperative function. IACA was performed in 10 patients with ulcerative colitis (UC) and 10 patients with familial adenomatous polyposis (FAP), 15 of whom were examined proctoscopically. IPAA was performed in 4 patients with UC and 8 patients with FAP. The mean maximum resting pressure (MRP) was 55 mmHg in the IACA group and 34 mmHg in the IPAA group (P < 0.01). The anorectal inhibitory reflex was positive in 18 patients (90%) from the IACA group and 5 (42%) from the IPAA group (P < 0.05). The pre- and postoperative MRPs were 61 mmHg and 55 mmHg, respectively, in the IACA group vs 63 mmHg and 34 mmHg, respectively, in the IPAA group (P < 0.01). Whereas 16 (80%) of the 20 IACA patients could discriminate feces from gas, only 4 (33%) of the 12 IPAA patients could (P < 0.05). The mean observation period was 2.3 years, the mean length of the columnar cuff was 2.8 cm, and no case of dysplasia or adenoma was seen. Postoperative function is more favorable following IACA than following IPAA, both physiologically and symptomatically. However, long-term surveillance of the residual mucosa is necessary before making a final recommendation.
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