how many hours does it take to due open heart surgery ? sorry i shouldn t have been so vague! I mean like a clogged artery that needs open heart surgery for a 79 year old man! and the due is suppost to be do!!! Sorry you may have seen this up before but i m really worried and trying to find some stuff out!! My grampie (grandpa) is 79 years old and has a clogging artery that just keeps getting bigger!! My Nanny (gramma) took him to his regular check up in Halifax and was told that he had a clogging artery yeah!! Anyways the family (cousins,aunts,uncles,etc...grandkids,kids) were told that he may come through the surgery but they don t think he ll come of the resperator!! I was just wondering what you would think the length of the open heart surgery would take?? They the doctors can t do the balloon thinggy up the pelvis because he s not the right candidate?? Whatever that means! Anyways I m his youngest grandchild who is so so so so worried about him i love him to piece and i just can t image him gone!! It would be really hard for my Nanny anyways thank you!!!!