Different cells die at different rates. After the heart stops beating, oxygen supply to the brain is cut off. With no glucose store to rely on, nerve cells die within three to seven minutes. Transplant surgeons must remove kidneys, livers and hearts from donors within thirty minutes of death and get them into recipients inside six hours. Skin cells, meanwhile, are longer lived. Grafts can still be successful if taken 12 hours after death. Hence what happens in the first three minutes after clinical death does not entirely constitute death unless it is longer than 7 minutes. It looks like the Southampton study produces more questions than it does answers, nonetheless progress it has made
Posted on: Wed, 08 Oct 2014 09:04:21 +0000
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