Doctors have transplanted a pig kidney into a New Jersey woman who was near death, part of a dramatic pair of surgeries that also stabilized her failing heart.
Lisa Pisano’s combination of heart and kidney failure left her too sick to qualify for a traditional transplant, and out of options. Then doctors at NYU Langone Health devised a novel one-two punch: Implant a mechanical pump to keep her heart beating and days later transplant a kidney from a genetically modified pig.
Pisano is recovering well, the NYU team announced Wednesday. She’s only the second patient ever to receive a pig kidney — following a landmark transplant last month at Massachusetts General Hospital — and the latest in a string of attempts to make animal-to-human transplantation a reality.
This week, the 54-year-old grasped a walker and took her first few steps.
“I was at the end of my rope,” Pisano told The Associated Press. “I just took a chance. And you know, worst case scenario, if it didn’t work for me, it might have worked for someone else and it could have helped the next person.”
Dr. Robert Montgomery, director of NYU Langone Transplant Institute, recounted cheers in the operating room as the organ immediately started making urine.
Surgeons operate on Lisa Pisano at the NYU Langone Health in New York on April 12.Joe Carrotta / NYU Langone Health via AP file
“It’s been transformative,” Montgomery said of the experiment’s early results.
But “we’re not off the hook yet,” cautioned Dr. Nader Moazami, the NYU cardiac surgeon who implanted the heart pump.
“With this surgery I get to see my wife smile again,” Pisano’s husband Todd said Wednesday.
Other transplant experts are closely watching how the patient fares.
“I have to congratulate them,” said Dr. Tatsuo Kawai of Mass General, who noted that his own pig kidney patient was healthier overall going into his operation than NYU’s patient. “When the heart function is bad, it’s really difficult to do a kidney transplant.”
The pig organ quest
More than 100,000 people are on the U.S. transplant waiting list, most who need a kidney, and thousands die waiting. In hopes of filling the shortage of donated organs, several biotech companies are genetically modifying pigs so their organs are more humanlike, less likely to be destroyed by people’s immune system.
NYU and other research teams have temporarily transplanted pig kidneys and hearts into brain-dead bodies, with promising results. Then the University of Maryland transplanted pig hearts into two men who were out of other options, and both died within months.
Mass General’s pig kidney transplant last month raised new hopes. Kawai said Richard “Rick” Slayman experienced an early rejection scare but bounced back enough to go home earlier this month and still is faring well five weeks post-transplant. A recent biopsy showed no further problems.
A complex case at NYU
Pisano is the first woman to receive a pig organ — and unlike with prior xenotransplant experiments,