Postoperative mortality in cats after ureterolithotomy.

Area of Science:

• Veterinary Surgery
• Nephrology
• Urology

Background:

• Ureteral obstruction is a serious condition in cats.
• Ureterolithotomy is a surgical procedure to address ureteral obstructions.
• Identifying preoperative risk factors for mortality is crucial for improving surgical outcomes.

Purpose of the Study:

• To identify preoperative risk factors associated with mortality before discharge in cats undergoing ureterolithotomy for ureteral obstruction.

Main Methods:

• A case series study involving 47 cats that underwent ureterolithotomy between 2002 and 2009.
• Evaluation of multiple preoperative factors for their association with survival to discharge.
• Multivariate analysis was performed to identify significant predictors of mortality.

Main Results:

• The survival rate to discharge following ureterolithotomy was 79%.
• Most cats (over 79%) presented with azotemia and 94% had chronic kidney disease changes.
• No preoperative variables were found to be significantly associated with survival to discharge.

Conclusions:

• Ureterolithotomy in cats is associated with a substantial mortality rate (21%) before hospital discharge.
• Current preoperative factors do not reliably predict mortality after ureterolithotomy.
• Further research is needed to identify more discriminating preoperative characteristics for mortality in cats undergoing this procedure.