Garrett Leopold was a newborn baby when we first brought you his story 16 years ago.
Now, he's a teenager with a story that features medical miracles, but limitations.
Garrett had an infant heart transplant when he was 3 months old. But at age 16, that heart wore out. He underwent his second heart transplant in March.
Doctors say there's no limit to the number of transplants a person can have, but the supply of donated hearts is limited. As transplants become more common, donor hearts will be in even shorter supply.
Garrett is focusing on life as a normal teenager again. His prognosis is good, but the future is uncertain for transplants, as donated hearts grow harder to find.
To see Lloyd Sowers' full story, click on the video player above.
FOX 13 / WTVT-TV
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