1.   He was attending to patients in his Belle Mead office earlier that day when he suffered an aortic dissection, or tear, and collapsed, his family said.

2.   It could be particularly useful in surgery to fix a common condition known as an aortic dissection, where the wall of a major blood vessel splits in two.

3.   One son, William George, suffered a aortic dissection last December.

4.   An aortic dissection is a tear in the aorta that can get larger.

5.   Houllier had not had a heart attack, but suffered from a condition know as aortic dissection, the hospital said.