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Experimental study of the development of a ureteral fistula following surgical trauma.

Presented are the results given by the authors on an experimental research aimed toward studying the causes of precocious ureteral fistulas following a surgical trauma. Different types of trauma on the pelvic ureter practiced on several groups of animals (ureterotomy, scarification, and crushing with or without downstream stenosis) have caused the appearance of fistula only when the continuity solution of the ureteral wall had been associated with a stenosis. Without wanting to give a definite conclusion on the subject, the authors would like to stress the important part which the canalization of the ureter plays in the formation of a ureteral fistula following surgical trauma.