Hello, my father was admitted to ICU 4 days ago after being found unconcious on the ground in our driveway. He suffers from copd and subsequently died from lack of oxygen. Thankfully the paramedics were able to restart his heart and take him to the hospital. The biggest concern that doctors have is how much brain damage he may have sustained as the amount of time he was without oxygen is still unknown. He was brought off his sedation yesterday and is breathing on his own with the help of a ventilator but he is still not responding to any pain stimulus. The ct scan they did yesterday showed that he has lost a small amount of grey matter, alot less than they were expecting. Dad's blood pressure and heart rate did rise in response to the pain stimulus but he didn't withdraw his hands at all. His kidneys are functioning well and his heart is strong. He is 69 years old so is it just a matter of time and that we just have to be patient? This waiting is hard. Just wondering if anyone else has been in the same boat.