Editing Intestinal Segments and Urinary Diversion (section)

=== Motor activity ===
* It has been suggested that splitting the bowel on its antimesenteric border discoordinates motor activity and thereby causes a lesser intraluminal pressure. However, the literature is contradictory with respect to the effect of detubularization on segments of ileum and colon used to construct storage vessels for continent diversions.
* Thus, '''reconfiguring bowel usually increases the volume, but its long-term effect on motor activity and wall tension is unclear at this time'''. Some patients with orthotopic bladders after a number of years of spontaneous voiding require intermittent catheterization. In these patients the bowel segment has become flaccid, and the ability of the patient to generate intraluminal pressure by a Valsalva maneuver is limited.