Surviving is winning only half the battle, he also needs to get through without sustaining permanent brain damage due to lack of oxygen, which is why they have induced the coma. I do hope he pulls through with no serious harm done but those only wishing for him to survive need to take a reality check, cos at least to me living ain't worth much if it means sitting in a wheelchair being fed with no ability to communicate with others (I know someone who does just this, not a life worth living imo).