Wowww, when I heard about this news I was shocked. I had to attend to a passenger as well on board 2 weeks ago with Etihad airways. Luckily it's not a heart attack but I was frustrated that it was so slow for them to respond that it got to a point that the passenger felt he was dying from severe abdominal pain. Even got to a point if I think that we need to divert the flight luckily I managed to stabilise the passenger after 7 hours and completed our 13 1/2 hour flight from Melbourne to Abu dhabi. The sad part is not a little thank you I've heard from the airline even to the cabin manager that I was dealing with on board to look after their passenger. No wonder medical staff are reluctant to attend to such calls because of the responsibility when they are not even given a little thank you. I'm glad I work in the hospital not on board.