The process seems simple, and sci-fi movies have been using it for years. What could be more natural than the idea of freezing an organ to preserve it? Nature succeeds in this. Hibernatus (the worm, not the movie character) survived sixty-five years of imprisonment in the North Pole ice. And yet, in terms of transplantation, ice is the enemy of preservation; even if the organ maintains its correct appearance, the crystals formed during freezing irreparably damage the entire structure.
To transplant an organ, it must be fresh. A few hours at most must separate the moment it is extracted from one body and the moment it joins another, so that the lack of nutrients and oxygen supply can irreversibly break it down.
Chemical cocktail
When a person’s heart or lung is separated from a donor, doctors have 4-6 hours to transplant it. The window for the liver is 8 to 12 hours…
Source: Le Figaro
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