Al writes "A new system that keeps lungs breathing outside the body could improve the chances of a successful transplant. The Toronto XVIVO Lung Perfusion System, developed at Toronto General Hospital, can keep a pair of human lungs slowly breathing inside a glass dome attached to a ventilator, pump, and filters. The lungs are maintained at normal body temperature of 37 C and perfused with a bloodless solution that contains nutrients, proteins, and oxygen. The organs can be kept alive in the machine for up to 12 hours while surgeons assess function and repair them. See a video of the system keeping a pair of lungs alive."