I nearly lost my hubby in a car accident a few years back and I agree wholeheartedly with the sentiment posted here about ensuring you appreciate all those around you who are special.
Now whenever we are parting, even if just going to the shops, I always tell him I love him because you just never know. Its the same with the kids in the morning when they go off to school or out to play. They look at me as though I've lost it but hey ... who cares.
I hope your hubby has a speedy recovery and is back feeling fine and dandy in no time at all ... although with the nursing he is going to receive, he might just prolong his recovery