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hydronephrosis--seeking answers!:)
jerseygal526 posted:
hi doc,

i volunteer with a rescue and one of our cats has been diagnosed with hydronephrosis. just wondering what sorts of treatments are available and if you have any other information on this condition. one vet put him on baytril. should we be trying to feed him anything in particular? his eating is limited.

i appreciate your time--thank you!

Drew Weigner, DVM, ABVP responded:
Hydronephrosis is an increase pressure in the kidneys that causes it (and the associated ureter — the tube from the kidney to the bladder) to dilate and enlarge. This damages the kidney and can cause it to fail. It's very important to find out what is causing the problem before that happens. The most common cause of hydronephrosis is an obstruction to the flow of urine from the kidney, such as a kidney stone or one in the ureter. But here's the interesting part: if only one kidney is affected and the other kidney is working normally, you won't see signs of illness. Because of this, hydronephrosis is often diagnosed as an incidental finding when a cat is x-rayed or has an ultrasound for another reason. The treatment obviously depends on what's causing the problem and whether the affected kidney is still functional (if not, there's no treatment.)

Drew Weigner, DVM, ABVP
The Cat Doctor
Board Certified in Feline Practice