Federal transplant regulators have approved the first uniform national guidelines for a controversial procedure used to recover organs from dying patients, a move supporters say could ease America's chronic organ shortage. Critics argue the new rules do little to resolve a far more unsettling question: whether the donor is actually dead when surgeons remove their organs.
The technique, known as normothermic regional perfusion, or NRP, is used after a family has decided to withdraw life support because there is no hope of meaningful recovery, according to NPR. Once circulation has ended and death has been declared, doctors attach an external pump to the donor minutes later. The pump restores blood flow to the heart, lungs, kidneys, liver and other organs, keeping them viable for transplant even as the donor's brain is supposed to remain cut off from that circulation.
On Nov. 6, the board of directors for the Organ Procurement and Transplantation Network approved the first phase of these new national guidelines, which are set to take effect Dec. 6. The rules call for surgeons to do more than clamp the blood vessels leading to the brain during NRP, the station's report notes — they should also cut holes in those vessels, and the guidelines recommend against giving donors drugs that could paralyze them and mask any signs of movement.
Why Regulators Stepped In
The push for national standards followed reports that some organ retrieval teams observed blood appearing to be restored to the brain during certain NRP cases. Dr. Claire Morgan, a transplant surgeon who serves on the transplant network's Patient Affairs Committee, was the first to report such cases to the Health Resources and Services Administration, the federal agency that oversees the U.S. organ transplant system. Per the same account, Morgan said teams had seen signs of life when the brain was reperfused during some procedures. HRSA then instructed the Organ Procurement and Transplantation Network to investigate and develop a response.
Dr. Raymond Lynch, director of transplantation at HRSA, said cutting or venting the blood vessels above the clamp provides an added safeguard against blood reaching the brain. Lynch argued the new guidelines will protect donors and that NRP, performed properly, is ethical, safe, and can extend the organ supply while improving organ quality.
Critics Say The Fix Falls Short
Not everyone is convinced the new rules go far enough. Critics told the outlet that most surgeons already both clamp and vent the blood vessels to the brain, meaning the new safeguards add little beyond existing practice. Morgan herself said the policy offers little or no additional protection to donors, and she opposed the decision to implement the first phase of the guidelines on an emergency basis before the public had a chance to weigh in.
Dr. Lainie Friedman Ross, a University of Rochester bioethicist, said NRP violates the Dead Donor Rule — the principle that organs may be taken only after death by brain death or circulatory death — because it takes organs from people who are, in her view, no longer actually dead at that point. Critics broadly argue the policy does not address concerns that donors may not technically be dead when their organs are removed, and they warned that adopting the policy could speed NRP's use before the ethical questions are fully aired. Dr. Matthew DeCamp, a University of Colorado bioethicist, said the fundamental issues around NRP still remain unresolved.
The Stakes Behind The Debate
The debate is playing out against a backdrop of persistent scarcity. More than 109,000 Americans are waiting for an organ transplant, according to HRSA, and about 12 people die every day because of the shortage, the report states. Supporters see NRP as one way to narrow that gap by preserving organs that might otherwise be unusable.
Comparable protocols abroad illustrate the procedure's potential upside. The United Kingdom's national NRP protocol, version 1.14, states that NRP has been shown to increase the use of all abdominal organs and significantly improve outcomes for livers and kidneys, according to the UK Protocol for Normothermic Regional Perfusion. That document describes abdominal NRP as perfusing organs with oxygenated blood at 37°C for roughly two hours, and it requires that the ascending thoracic aorta always be vented before the procedure begins — a step meant to guard against exactly the kind of brain reperfusion now at the center of the U.S. dispute.
For now, the American debate remains unresolved even as the clock ticks toward the Dec. 6 start date. Regulators and critics agree on the stakes of the organ shortage; they simply disagree on whether this particular fix protects donors or merely papers over a deeper ethical problem that, as DeCamp put it, has yet to be settled.
