PLEASE HELP??HAS ANYONE HEARD OF THIS?

My friend, who is a 67 yr. old male, had a stent put in his basilar artery over a week ago, is recuperating from a stroke caused by the procedure. Had pain a few nites ago, docs said gallstones, did the procedure yesterday (something down his throat?), The docs saw the stones on ultrasound, when they got in there, no stones. Docs are confused. My friend is starting to turn yellow. Docs can't figure it out. PLEASE HELP??? Tweet