My grandfather went into cardiac arrest and they stayed the front to parts of the brain is damaged but the rest is working. He has gone through a numerous surgery and the very first one was on his gallbladder which went wrong but the doctor did not tell us and the doc preformed another surgery to fix his mistake, which then the doctor cut the wrong artier and was transferred to UCSF where the surgeon and doctor told us my grandfather would only have a 2 days to live if we wouldn't have brought-en him to UCSF. My question is if my grandfather is breathing on a ventilation and his hart rate is stable is there any chances he'll get better is there anything we can do?