YES, and more, even a stroke.

Did he play with his meds? NO!
Did he stop ridding? NO!

Did he follow his docs instruction? YES!
Did he modify his ride? YES!

To be sure he is a really tough bastard. Retired combat veteran, US Army SF and other things. I only found out about his issues after the fact. So what did he do? He shortened his ride. He stopped heavy lifting at the gym, monitored his heart rate and rhythm, and took all his meds. He also updated his Wills and Directives. Like many of us he is a survivor. Its good that you ask what others have done in this process of life. There is one other thing he does that can be a real challenge.

He does not whine about it!

(Wish I was that strong.)