Organ donation breakthrough promised after new tissue warming discovery

A groundbreaking new method of safely freezing organs promises to save millions of lives by ending the donor shortage crisis, scientists have said.Researchers have discovered how to successfully rewarm heart valves and blood vessels that had been preserved for a long periods at very low temperatures.It means hospitals should be able to create banks of donated organs, to which patients can travel at their convenience, rather than frantically trying to find suitable recipients when a donor dies.