逆行性腎盂撮影に関する研究 第II篇: 腎部疹痛に就て(その2)

Abstract

Frequently occuring renal pain in retrograde py e l ography was slightly apt to pelvis that did not anatomic differences. There was almost r e cognized no differences in the volume of pelvis between symptomfulness and symptomlessness. Extrarena l backflow was 12% of all cases, 80.4% of occure pain, and then these were differentiated with kinds of contrast solution. Pain appeared the most with Iodn a trium. In extrarenal backflow, pyeloi n terstitial backflow was 58.8% in maximum and contrast solution pressure of calix was 7.8 to 16.1 cm H2O and renal pain occured over 40 mmHg. Contrast solution gave difference between real preasures under the definite c o ndition, 20% Iodnatrium 70 to 90 mmHg in minimum and 60% Urografin 220 to 260 mmHg in maximum. An occurate measurement taken on viscosity of contrast solution, setting it on the standard of 20°C water, showed a big difference, such as 30% Iodnatrium was 1.072 in viscostity of minimum, 60% Urografin 6.741 in one of maximum. The lesser in viscosity, the easier to occur pain due to extrarenal backflow. Viscosity of contrast solution was known to give importance to the renal pain. It was, clinically experimenta l ly, successful that contrast solution was diluted with 50 % glucose for raising viscosity in oder to moderate pyelomucous irritation.