KAK, my regular vet told me that Gatsby's blockages (or swelling or spasms, whatever was happening) were taking place so far back along his urethra that the surgery wouldn't be effective.

Also, I'm not willing to go forward based solely on the ER vet's recommendation because I don't entirely trust the clinic. For one thing, they're outrageously overpriced. They insist on payment in advance of treatment, but because I'd been there before (with poor Hagrid), they allowed me to get by with paying half of the $ 1000 estimate. My vet charged me $ 225 last week for basically the same course of treatment. For another thing, the ER vet wanted to operate today based on a 30-minute exam last night. There were no problems getting the catheter in, so there wasn't any need to rush Gats into surgery. I think that a conscientious ER vet wouldn't try to take over another vet's patient in that manner.

They're not going to take out the catheter until tonight or tomorrow morning. My plan is to bring him home when I can, then find a vet who has plenty of experience with the surgery and schedule an appointment for a third opinion.