The Commandant has had a heart attack, what happens now?

 The Commandant of the Marine Corps has suffered a heart attack. 

I know we all wish him well and a speedy recovery.

BUT THAT DOES BRING UP AN INTERESTING POINT.  I've only seen one other case of this and it was a gunny.  He was medically retired even though afterwards he claimed to be fine.

What happens with General Officers when this happens?

In days past if you weren't deployable or needed a medical profile or wasn't capable of performing combat you were retired, medically discharged, etc...What happens with him?