Pros - coronary arteries that surround the heart will be able to effectively perfuse the heart muscle with the oxygen
and nutrients it needs to pump effectively. Reduced risk of a heart attack
. Reduced risk of heart failure
from a weakened heart muscle. Longer life.
Cons - any surgery carries risks. Will be on restricted activity for a period of time. Donor site may have complications in the future, especially true with diabetics.
If you are concerned talk to the doctor BEFORE he begins the procedure so all of your questions can be answered.