A historic medical accomplishment that ended in tragedy may yet have a silver lining.

The 62-year-old Slayman died just two months after he underwent the experimental procedure at Massachusetts General Hospital inApril 2024.

Early experiments using these organs have largely been performed onanimalsandpeopledeclared brain-dead.

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Health regulators have begun allowing researchers to perform these experimental transplants on living patients who have few other options.

These procedures, groundbreaking as they are, have yet to yield a clear success story.

And this technology will continue to be tested more extensively in humans.

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U.S. President Donald Trump speaks to the media during a guided tour of the John F. Kennedy Center for the Performing Arts before leading a board meeting on March 17, 2025 in Washington, DC.

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U.S. President Donald Trump speaks to the media during a guided tour of the John F. Kennedy Center for the Performing Arts before leading a board meeting on March 17, 2025 in Washington, DC.

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