This machine keeps a heart alive while it's headed to transplant surgery

The longer a heart is cut off from oxygen and blood flow, the less likely it is to function well post-surgery. But Dr. Waleed Hassanein’s medical device company, TransMedics, invented a machine that could eventually change the success rate for organ transplantation, as it can revive hearts after they have stopped beating.

Story and editing by Chelsea Pineda

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