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World's first pig-heart transplant patient dies after two months

Worlds first pig-heart transplant patient dies after two months

The first patient to have a heart transplant with an organ from a genetically modified pig died Tuesday at the University of Maryland Medical Center (UMMC), the New York Times reported. David Bennett Sr., who had severe heart disease, received the heart in early January. He was 57.

As per the statement from the hospital, David's condition began deteriorating several days ago and was given "compassionate palliative care" after it became clear that he would not recover.

Bennett "wasn't able to overcome what turned out to be the devastating debilitation" caused by the heart failure he experienced before the transplant, Dr. Bartley Griffith, director of the UMCC cardiac transplant program, said in a videotaped statement.

The transplanted heart functioned "beautifully," Griffith said.

Bennett was able to communicate with his family during his final hours, the hospital said.

Bennett first came to UMMC as a patient in October and was placed on a heart-lung bypass machine, but was deemed ineligible for a conventional heart transplant.

After Bennett received a pig heart that had been modified to prevent rejection with the use of new gene editing tools, his son called the procedure "a miracle."

For Bennett, the procedure was his last option.

"Before consenting to receive the transplant, Mr. Bennett was fully informed of the procedure's risks, and that the procedure was experimental with unknown risks and benefits," the hospital said.

Researchers have long considered pigs to be a potential source of organs for transplants because they are anatomically similar to humans in many ways. Prior efforts at pig-to-human transplants had failed because of genetic differences that caused organ rejection or viruses that posed an infection risk.

"The demonstration that it was possible - that we were able to take a genetically engineered organ and watch it function flawlessly for nine weeks, is pretty positive in terms of the potential for this therapy," Griffith said.

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