[Love my little]

Hi I am new to this site. I bought a little yorkie puppy a week ago. For a few days he was great but on Thursday he stopped eating. At 4 am we ended up taking him to the emergency clinic. They kept him for the night. The next day we picked him up and we we told that we would have to force him and make sure to give him nutri cal. Well I stayed up all the next night feeding him. But at 4 am I knew things were not right so back to the emergency vet we go. They took him back in again and put him on Iv to get his sugars up, we'll now he is still there 2 days later and still not eating on his own. The vet called last night to tell us that it seems he has liver shunt and would need to be operated on, I am wondering if anyone has had these problems with their yorkies? If they operatate what kind of issues would this little guy have with his life.......we are so so attached to him