My question is, how much riskier it is for him to have this 2nd re-
op in comparison to his 1st and second
op? Is the scar tissue/age a big obstacle for a surgeon? At the Cleveland clinic, what is the mortality rate for someone my dad's age having a 2nd re-op and how does this compare to an 80 year old having his primary AVR there? Also, is it important for him to have a CAT scan along with a cath before the surgery?