That is the surgery they did. According to my wife(she knows everything).
After reading that I am unsure what she was talking about with the 4 valves not properly functioning. I am a little confused. Medical stuff is however not my strong point....
My father had that done in 1989 when he was only 59 yrs old, bypass of the main cardiac artery that feeds the heart. He was fine until he hit 78 yrs old when he had to have another open heart to repair a double aneurism in his main aortic trunk coming out of his heart, amazing what they these surgeons can do.
The "valves not working properly" issue maybe in the veins themselves as all our veins have small one way valves in them to prevent blood from pooling in extremities and back flowing.
It could be an issue also of the valves in his heart not working properly causing "bad blood" to leak in with the good blood. That would require surgery though for replacement valves, usually pig heart valves are used. I have a friend who had to have one of hers replaced at age 38-39 due to childhood illness. She opted for a mechanical one though. If it's super quiet, you can hear it open/closing with her heart beat.