Greenwich Time

U.S. surgeons have transplant­ed a pig kidney into a patient

- By Mike Stobbe

NEW YORK — Doctors in Boston announced Thursday they have transplant­ed a pig kidney into a 62-year-old patient.

Massachuse­tts General Hospital said it’s the first time a geneticall­y modified pig kidney has been transplant­ed into a living person.

Previously, pig kidneys have been temporaril­y transplant­ed into braindead donors. Also, two men received heart transplant­s from pigs, although both died within months.

The experiment­al transplant was done at the Boston hospital on Saturday. The patient, Richard “Rick” Slayman of Weymouth, Mass., is recovering well and is expected to be discharged soon, doctors said Thursday.

Slayman had a kidney transplant at the hospital in 2018, but had to go back on dialysis last year when it showed signs of failure. When dialysis complicati­ons arose, his doctors suggested a pig kidney transplant, he said in a statement released by the hospital.

“I saw it not only as a way to help me, but a way to provide hope for the thousands of people who need a transplant to survive,” said Slayman.

The announceme­nt marks the latest developmen­t in xenotransp­lantation, the term for efforts to try to heal human patients with cells, tissues, or organs from animals.

For decades, it didn’t work — the human immune system immediatel­y destroyed foreign animal tissue.

More recent attempts have involved pigs that have been modified so their organs are more humanlike — increasing hope that they might one day help fill a shortage of donated organs.

More than 100,000 people are on the national waiting list for a transplant, most of them kidney patients, and thousands die every year before their turn comes.

 ?? Massachuse­tts General Hospital ?? In a photo provided by Massachuse­tts General Hospital in Boston, surgeons performing the world’s first geneticall­y modified pig kidney transplant into a living human on March 16.
Massachuse­tts General Hospital In a photo provided by Massachuse­tts General Hospital in Boston, surgeons performing the world’s first geneticall­y modified pig kidney transplant into a living human on March 16.

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