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  • Title: The W ileal reservoir: long-term assessment after proctocolectomy for ulcerative colitis and familial polyposis.
    Author: Harms BA, Andersen AB, Starling JR.
    Journal: Surgery; 1992 Oct; 112(4):638-46; discussion 646-8. PubMed ID: 1329244.
    Abstract:
    BACKGROUND: This report examines the viability of the W reservoir as a reliable option for the treatment of ulcerative colitis and familial polyposis and studies W reservoir adaptation as reflected by changes in compliance and stool frequency. METHODS: Since 1984, 109 patients have undergone proctocolectomy with W reservoir reconstruction. Ileal reservoir static compliance was measured in 70 and 57 patients at 2 and 12 months after ileostomy takedown and in 25 patients at 3 years. Compliance was calculated as the change in volume over change in pressure. RESULTS: Twenty-four-hour stool frequency decreased from 7.3 +/- 0.2 at 2 months to 4.9 +/- 0.2 at 1 year for patients with ulcerative colitis and from 6.3 +/- 0.4 to 3.4 +/- 0.4 for patients with familial polyposis (p less than or equal to 0.05). Compliance increased from 12.7 +/- 0.6 ml/mm Hg to 14.3 +/- 0.6 ml/mm Hg between 2 months and 1 year. No significant increase in compliance occurred after 1 year. Ninety-six percent of patients were continent during the day at 12 months although 10% experienced occasional minor leakage at night. Average postoperative morbidity (for example, small-bowel obstruction, anastomotic complications) was 35%. No operative deaths, pelvic sepsis, or reservoir loss occurred. CONCLUSIONS: We conclude that W ileal reservoirs (1) are an excellent option for ileal reservoir reconstruction, (2) have optimal functional and compliance properties versus lower capacity designs and straight ileoanal pull-through procedures, and (3) maintain stable compliance characteristics and functional reservoir volume after the initial year of adaptation.
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