How dangerous are heart transplants? how successful are they? any risks?

Serious surgery: Transplantation is a serious surgery with significant risk and is not lightly advised. It is essentaiily changing one disease entity i.E uncontrollable CHF to another disease which is the post transplant care. It requires extensive medication and follow up.

Need a good reason: Major surgery with serious risks. Organs are in limited supply & you're trading 1 disease for another since post-tx care requires lots of meds & close follow-up to watch for organ rejection, infection or other problems. So we don't do it without a very good reason. Stats are improving--10 yr survival now ~50% & typically provides huge quality of life improvement. Good option if no other options.