What is the role of stricture in the pathophysiology of ureteral injury?

Updated: Nov 12, 2020
  • Author: Sandip P Vasavada, MD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Answer

Ureteral stricture may occur when the adventitial layer of the ureter is stripped or electrocoagulated. When the adventitia, the outer layer of the ureter that contains the ureteral blood supply (see the image below), is disturbed by either stripping or electrocoagulation, ischemia to a particular segment of ureter may result. Ischemic strictures of the ureter may then develop, leading to obstruction and hydronephrosis of the ipsilateral kidney.

An illustration of the blood supply to the ureter An illustration of the blood supply to the ureter running within the adventitial layer.

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