The new technique, transplant surgeons say, significantly expands the potential pool to patients who are comatose but not brain dead, and whose families have withdrawn life support because there is little chance of recovery.
But hearts are almost never recovered from these donors because they are often damaged by oxygen depletion during the dying process.
Surgeons have discovered that returning blood flow to the heart restores it to a remarkable degree, leaving it suitable for transplant.
The first problem, some ethicists and surgeons say, stems from the way death has traditionally been defined: The heart has stopped and circulation of blood has irreversibly ceased.
Because the new procedure involves restarting blood flow, critics say it essentially invalidates the earlier declaration of death.
Persons:
”, V, Eric Thompson
Organizations:
Surgeons, Yale School of Medicine