SCINTIGRAPHIC EVIDENCE OF ABNORMAL URETERAL PERISTALSIS FOLLOWING UROLOGICAL SURGERY

Objective To investigate the effect of urological surgery on ureteric peristaltic activity. Subjects and methods Ureteric peristalsis was as sessed in a sample urological population (n = 29 patients) and the fin dings compared with a control population (n = 14 patients). Results Th e incidence of disordered peristalsis was significantly increased (P < 0.05) following urological surgery and, in particular, the incidence of retrograde peristalsis was very significantly increased (P < 0.01) following ureteric division and re-anastomosis. Conclusion The results of this study are consistent with a central role for myogenic activit y in the conduction of ureteric peristalsis in man.