小胃による代用膀胱の実験的研究 第5篇:小胃膀胱造設術

Abstract

The substitute bladder was formed by the trans p lanting of ureters into the Heidenhain's pouch made of corpus ventriculi of the dog, and the post operative course of this procedure was observed. The results were as follows : 1) The reabsorption of the u r inary constituent by the substitute bladder was of little amount and any remarkable change was not found in the bldod electrolyte. 2) Though the segment of stomach was used as the substitute bla d der, neither its influence upon the secreting function nor the change of the histological findi ng was observed. 3) The secretion of the acid gastric juice from the substitute bladder may prevent the ascending infection. 4) The su b stitute bladder can reserve the urine. 5) The operative procedure in the experime n tal animals is not so complicated. 6) The ileus was found as the cause of death in the early post-opera t ive period and the various grades of renal insufficiency owing to the stricture at the site of ureteric transplantation occured frequently in the later post-operative period. 7) When the stricture did not occur at the site of anastomosis, the r e nal function has not been damaged and the animals could live for a long time. 8) When the Heidenhain's pouch was anastomosed to the s u btotally resected bladder, any remarkable change was found neither in the histological, nor in the blood chemical examinations. Therefore this gastric pouch may be used in the operation for the purpose of increasing the capacity of the bladder. From above mentioned exp e rimental results it may be concluded that the segment of stomach as the substitute bladder has many advantages and is enough applicable for man.