Former Vice President Dick Cheney battled heart disease for most of his adult life. He had his first heart attack at the unusually young age of 37.
18-month-old Dahlia Morris suffers from cardiomyopathy, which is an enlarged heart.
"Looking back, we never knew if we would make it one week, much less one year."
Lawrence Faucette, 58, was ineligible for a traditional human heart transplant due to pre-existing conditions and heart disease.
At just seven months old, Joseph Sanchez was diagnosed with cancer and soon needed a liver transplant. Seven years later, he received a new kidney, and four months ago, a heart.
Duke Health said surgeons have performed what is believed to be the world's first partial heart transplant on a five-pound newborn.