my kakis and I noticed this trend, not sure if the doctors in the room can help explain- one chap suffered minor stroke, a couple of years down the road major heart attack, kaput. another case was the reverse, minor heart attack, recovered then kena stroke.
It is all part of cardiovascular disease. You have atherosclerosis in a vessel then you have it in other vessels. Same risk factors for Cardiovascular and Cerebrovascular disease.