Quote: (Originally Posted by
Yann A.)

PFO seems vrey unlikely though, as the diver get complete medical check every 6 months for work.
After a friend of mine got bent due to a PFO, I decided to get checked. A normal medical check would not cover this. The first test they did on my was an ultrasound done through my chest wall (while injecting a bubble solution), but that doesn't give a very good picture. I actually had to go back to get a transesophageal echocardiogram which showed that I didn't have a PFO.
Most people with a PFO don't realize it, and it doesn't cause health problems except in the worst cases (with the exception of divers).
Your friend's case seems very similar to my friend's, and if I bet, I'd say PFO was a contributing factor.
Aloha,
Charlie