I agree, but this couldn't have been *too* serious of a thing since he was resting at home (not in the hospital) just hours after the procedure on Friday.
He's probably well enough to cast a vote on the healthcare thing (assuming there's a way to do that remotely), but I suspect this is a convenient excuse for the RINO's to shelve the whole idea... forever.
I believe you have to cast your vote from the floor of the senate.