My understanding of what Dr. Kaufman is most known for is a nerve graph. He takes a functioning nerve from your calf and grafts it onto the nonfunctioning phrenic nerve. If the graft takes, the renewed phrenic nerve will start working, which means the diaphragm will start working again. From what I understand, he has an age limit and doesn't accept patients over 67, I think it is, for doing the nerve graft. He probably does other procedures too. You can contact his office to find out more information. Every surgery is risky, which is why it's important to find the best most experienced surgeon and facility you can. Best wishes as you figure out your next steps!