In a major step forward for heart transplants, doctors at two leading U.S. hospitals — Duke University and Vanderbilt University — have developed simpler and potentially life-saving methods to recover hearts from donors whose hearts have already stopped beating. Their research, published Wednesday in the New England Journal of Medicine, could expand the pool of viable donor hearts, especially for babies and young children who often face the longest waits and highest risks.Rethinking Heart Donation After Cardiac DeathMost donor hearts used for transplants come from people who are declared brain-dead but whose hearts are still beating. In these cases, organs are kept alive on a ventilator until they’re retrieved. However, another type of donor, someone whose heart has stopped after life support is withdrawn, often goes unused. These are known as DCD (donation after circulatory death) donors.While DCD organs are commonly used for kidneys and livers, using their hearts is more complicated. Once the heart stops, oxygen is cut off, and even a short delay before retrieval can make the heart unusable. That’s why new methods are needed to safely assess and preserve these hearts for transplant.Controversial and Costly OptionsOne current method to save DCD hearts is called normothermic regional perfusion (NRP). It involves restarting blood flow to the heart and other organs, but only after clamping off the arteries leading to the brain. While effective, this technique is ethically controversial because it reintroduces circulation after death, which some hospitals do not allow.Another alternative is to use high-tech machines to “reanimate” the heart outside the body, pumping it with blood and nutrients to keep it functioning until it reaches the transplant hospital. These machines, however, are expensive and complex, and not suitable for infants, whose small hearts can’t be supported by the equipment.Simpler, Safer Methods EmergingIn response to these challenges, the Duke team developed a new, less invasive technique. Instead of reanimating the heart or using costly machinery, they simply removed the heart and briefly tested it by pumping blood and oxygen through it on a sterile table. This short test, done without restoring full-body circulation, was enough to confirm the heart was still viable.The method was first tested on piglets and then used in a real case: a 1-month-old infant at another hospital became a donor, and Duke surgeons transported the heart to save a 3-month-old baby. The retrieval took just minutes and the heart showed clear signs of life , “it’s pink, it’s beating,” said Dr. Joseph Turek of Duke.Meanwhile, Vanderbilt’s team took an even more streamlined approach. They simply flushed the heart with a cold, nutrient-rich solution, similar to what’s done for brain-dead donors, before transporting it. “You don’t necessarily need to reanimate the heart,” said Dr. Aaron Williams, the lead author of the Vanderbilt study. The hospital has already completed about 25 such heart transplants using this method.A New Chance for Patients Waiting in LineThe need for more donor hearts is urgent. Each year, around 700 children in the U.S. are added to the transplant waiting list, and nearly 20% of them die before receiving a new heart. Infants are especially vulnerable due to their small size and limited donor pool.Last year, 43% of organ donors were DCD, yet only 793 out of 4,572 heart transplants came from this group. That’s a huge gap many experts hope to close.Brendan Parent, a transplant ethics expert at NYU Langone Health, called the research “promising and essential.” He added, “Innovation to find ways to recover organs successfully after circulatory death is key to reducing the organ shortage.”As these new techniques continue to be tested and refined, they may offer fresh hope to thousands of patients, especially the youngest ones, waiting for a second chance at life.