I happened to be on a flight last week from Europe to YYZ when there was a medical emergency. No Dr on board, but a nurse or other health professional was there.
I was only one row away from the passenger in question...an elderly gentleman. I could hear the conversations of the staff and some of his family members. In the end we made it, sans diversion, to YYZ. I commend the staff for their ability to handle such a situation in this case.
Of course this is not really newsworthy. so only that worst case scenarios hit the CBC news.