The urodynamics of the upper urinary tract after autotransplantation in dogs

Urodynamics (pelvic pressure, pelvic volume and frequency of ureteral peristalsis) and pathology of the upper urinary tract after renal autotransplantation were investigated in 31 dogs. The function of the autograft was restored and the urodynamic patterns of the pelviureteral system were unchanged as compared with dogs without transplant. The viscoelastic behaviour of hysteresis could not be recognized in the autografted upper urinary tract. There was pronounced collagen infiltration in the ureteral smooth muscle layer, and this derangement was suggested as being responsible for the observed viscoelastic changes.