I am so sorry to hear about your kitty and his problems.

I have never had to deal with this type of situation. I did deal with renal failure, but that is different then what you are dealing with.

Believe it or not I did have a human friend with a simillar issue. He had caught some dieses, and I can't remember what it was at the moment, that was resistent to the medication that he could take. This dieses traveled into his kidneys and they started shutdown, one of his kidney's shutdown almost completely. The finally found a way to get rid of the dieses, and again I can't remember how. Anyway, his kidney's actually stared to function again. The doctors said that happened sometime. Well the whole point to this story is have they look to see if your kitty may have something that could be causing his kidneys to shutdown.

Beyond that great reach I have nothing.

I will be saying prayers for your kitty and I really hope that they find the cause and a cure without surgery.

Please let us know what happens.

By the way, what is the little boys name?