If you talk to him ask him to talk to his family about moving him to UAB or St. Vincents. The ICU's are much better in those hospitals. Jen's family has horror stories from Princeton. For a heart issue you need to be at the best facility available.
Me and Crystal just got back from the big H. Before we left the Doc come in and said that the clot was in his Aorto valve and that when the heart pumps it is basically keeping the clot from going into the heart. Said they where going to run some indepth test on how his blood is clotting and all that fancy terms. Going to put him on blood thinners and keep him through the weekend for monitoring. To make a long story short the doc come in and talked very positive about him being o.k. and being able to go home in a few days, but will just have to be on blood thinner from now on out.