Study on use of isolated segment of ileum in urological plastic operation.

Studies were done on 33 cases of plastic reconstruction of the urinary tract with an isolated ileal segment. We found that electrolytes and other components in the urine can be absorbed or excreted by the isolated ileal mucosa. Although electrolyte balance was preserved in most cases the tendency for hyperchloremic acidosis and high blood urea nitrogen was observed in some patients with poor renal function. The degree and the incidence of these changes were influenced by the length of ileal segment used and the volume of urine excreted. These 2 factors were related to infection, which gave deleterious effects on renal function. Among the tests used for prognosis the excretory urogram was found to be the most simple and provided the best information.