Nutritional Consequences of Bowel Segments in the Lower Urinary Tract

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Abstract
To assess for altered fat absorption in a group of 26 patients who underwent bladder replacement or augmentation between 1975 and 1988 serum samples were assayed for levels of B12 and carotene. Reconstruction was done with ileum and/or cecum in 22 patients, and 4 who had undergone sigmoid cystoplasty and were not expected to be at risk for fat malabsorption were included as controls. Followup ranged from 4 months to more than 8 years. No patient demonstrated low values of B12 or carotene regardless of postoperative duration, bowel segment location or length of segment. Use of ileal segments less than 45 cm. long even with associated incorporation of the ileocecal valve and adjacent cecum does not appear to compromise fat absorption or the enterohepatic circulation.