The bypass makes it sound vascular, affecting the heart but not directly caused by it. I’m no doctor, however. I don’t even play one on TV. 43 does sound sort of young to be worrying about these things though. Very unfortunate for him and you must feel the loss as well.
Yes, it affected us all, his siblings his wife and children and his Father but Mother was the one who was so hurt that she almost died.
We had to take her to the emergency room where they said her blood pressure was off the charts. They finally got her sedated and the next day she was OK. I remember at his funeral as we passed by, I thought to myself that Mother would have to take his hand and sure enough she did.