Abstract
Nephrostomy was performed in dogs for the purpose of taking electroureterograms free from any influence of changes in urine flow. At the same time, either the renal artery and vein were ligated, or only the renal vein was ligated, and isoproterenol was injected in the latter cases. In each case electroureterograms were recorded. The results obtained are as follows. 1) When nephrostomy was performed, the influence of changes in the urine flow could be excluded in cases of oliguria, but not in cases of polyuria. 2) When the renal artery and vein were ligated, the discharge interval of action potential became extended. 3) When only the renal vein was ligated, the influence of ligation was hardly observed on the electroureterogram. 4) When the renal vein alone was ligated and isoproterenol was administered by intra-aortic injection, the action potential ceased transitionally.
