Lung transplant recipients are living longer than ever before — one-year survival has climbed from 38% to 84% over the past four decades — yet thousands of patients still die waiting for organs that never come. A sweeping analysis of nearly 1.5 million patients in the United Network for Organ Sharing database reveals the paradox at the heart of transplantation medicine: remarkable medical progress shadowed by a persistent shortage that grows more acute each year.
Researchers at Baylor College of Medicine examined transplant trends from 1987 to 2024, tracking three critical measures of how well the system serves patients. Intent-to-treat survival captures everyone listed for a transplant, counting both those who receive organs and those who don't — a fuller picture of patient outcomes than just focusing on surgery success rates. One-year post-transplant survival measures those who actually undergo surgery. And unmet need quantifies the brutal gap between those waiting and those receiving organs.
The improvements are real and substantial. Heart transplant one-year survival jumped from 63% to 90%. Liver transplants improved from 70% to 85%. Kidney transplants — the most common solid-organ transplant — rose from 82% to 95%. Even pancreas transplants advanced from 84% to 95%. These gains reflect decades of innovation in anesthesia, critical care medicine, infectious disease treatment, and organ preservation techniques that have allowed patients to survive longer both before and after transplant surgery.
Yet this progress masks a troubling reality. About 13 people die every day waiting for an organ. More than 100,000 adults and children remain on transplant waiting lists. And in one of the most striking findings, kidney transplant demand has exploded by roughly 350 to 400 percent over the past three decades, growing from about 4,000 patients with unmet need in 1988 to about 18,500 in 2023. Kidneys remain in the highest demand of any organ, with persistent shortages even as supply has increased.
Some organs show progress in closing the gap. Liver transplant unmet need has dropped about 40 percent since the late 1990s. Heart and pancreas transplants have each seen roughly 50 percent reductions in unmet need. Lung transplant unmet need has fallen about 80 percent. But these improvements come from expanding the donor pool and improving organ preservation — not from eliminating scarcity. Living donor kidney transplants, which skew the survival numbers even higher, highlight another disparity: those with access to living donors fare better than those depending on deceased donors.
Carter Burns, the Baylor medical student who led the analysis, emphasizes that survival metrics only tell part of the story. "A lot of research focuses on the perioperative period, but a patient's experience with transplantation begins the moment they are waiting for an organ," he noted. That wait — measured in months or years, sometimes ending in death — remains the defining challenge of transplantation medicine.
The system achieved a record 49,064 transplants in 2025, a milestone reflecting both growing demand and expanding capacity. Yet this record obscures an uncomfortable truth: the gap between need and supply is widening for kidneys even as it shrinks for other organs. Without addressing the fundamental shortage, improved survival rates offer hope to the fortunate few while countless others remain on waiting lists with no certainty they will live long enough to receive one.