Open Heart Surgery is pretty serious surgery but with today's advances in medicine and medical procedures and the more knowledge heart surgeons have today the risk of death during a open heart surgery procedure is very low.
Open Heart Surgery is pretty successful now unlike years before all this new medical technology and advances in medicine.
The success rate of open heart surgery is around 98 % which is a pretty good success rate and out of that 98% success rate you only have a 2.9 % mortality rate when it comes to open heart surgery.
As long as you're in good health in other ways then the open heart surgery procedure should go pretty good.