Does anyone know someone that hung themselves and survived with hypoxic brain injury?

My husband hung himself I revived him but now has brain damage, It's called hypoxia brain injury. I am sure he was only there for around 5 minutes. The doctors told me he was a vegetable but is slowly recovering it's been 7 weeks, he is talking, trying to walk, he still has emotion but his memory is poor, his coordination is ok but not great. If you have a similar story could you please share it with me? I'd love to know the outcome of these peoples recovery.