If someone won't stop smoking after 5 stents, I think it will take an attack of DEATH to do it.
I would normally recommend that someone in his boat lower his total cholesterol to the mid 100's and his LDL below 80 with drugs and diet so that the 50-60% blockage STAYS there. THere need be no inevitablilty to that bypass.
But alas, if he can't stop smoking, there's no way that he'll be able to get his blood lipids that low.
I DO hope that they perfect that surgery so we don't have to look forward to being split open stem to stern every time they want to do a heart repair.
A bad heart attack will lower the ejection fraction so he's doing well with an EF of 71. Unfortunately a heart attack that kills part of the heart can mess up the rhythm patterns and thus create future risk of tachycardia and other dangerous problems even with a good ejection rate. At least a good ejection rate makes for a normal quality of life with blood getting where it's supposed to.