Worldwide medical and scientific journal for animal health professionals

Issue number 30.1 Other Scientific

Upper urinary tract urolithiasis

Published 16/07/2020

Written by Lillian R. Aronson

Also available in Français , Deutsch , Italiano , Română and Español

Renal and ureteral surgery in small animals can be challenging, even for the most experienced surgeon; Lilly Aronson gives an overview of the best options currently available for treating upper urinary tract obstructions.

Upper urinary tract urolithiasis

Key Points

Calcium oxalate (CaOx) uroliths are commonly identified in the upper urinary tract of both cats and dogs.


Owners should be made aware that the majority of cats presenting with CaOx urolithiasis have pre-existing chronic kidney disease.


Traditional surgical techniques may be successfully performed with appropriate surgical training and can avoid complications associated with the use of long-term implants.


In some situations a combination of traditional and interventional techniques are necessary to relieve an obstruction; at other times interventional techniques alone may be indicated.


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