The estimation of urine bolus volume for patients with congenital hydronephrosis.

Abstract

Harada, T., Noto, H., Etori, K., Kumasaki, T., Kigure, T., Nishizawa, 0. and Tsuchida, S. The estimation of urine bolus volume for patients with congenital hydronephrosis.Jap 1) Bolus volume of the hydronephrotic side was 0.05+0.02 (mean+ S.D.) ml at oliguric state, and it was significantly lower than the value of the healthy side which was 0.19+0.07 ml. Injection of diuretics increased the bolus volume of the healthy side ten times or more. On the other hand, the bolus volume of the hydronephrotic side was increased only slightly by the jnjection of furosemide, it being approximately one-fouth of the value of the healthy side.2) The value of bolus frequency was similar to peristaltic frequency which was measured by the electromyogram. The tendency of a decrease was noticed in bolus frequency of the hydronephrotic side but it was not significant.3) Of patients with severe hydronephrosis, the bolus volume of the hydronephrotic side was decreased and the response to the diuretics was not so significant. By bolusmetry, functional or organic obstruction of the ureteropelvic junction was detected.