Despite the small flesh wound He's dead. He ain't breathing, thats them pushing on his body and/or an artificial respirator. His whole head is split open, you don't live from that.
Watch it again when he's in the hospital you can see his chest moving up and down thus meaning he is breathing and when the guy with the camera shows his(victim's) mouth is moving like he's trying to talk
Anyways.. That's pretty fucking gross on the scale of 1-10 this gets a 10