Surgeon Muhammad Mansoor Mohiuddin is a leader in the novel field of xenotransplantation—transferring organs from one species to another—in his case, from pigs to humans.

After years of research into xenotransplantation, the field is at a turning point—yet risks and ethical issues remain ...

The device, to be tested in more people, could be used as a temporary measure for those waiting for a donor organ.

These medical procedures are undoubtedly life-saving ... Researchers trying to learn what killed the first person to receive a pig heart transplant have found the organ harbored an animal virus.

At 1 month old, she had hers replaced with a pig valve ... After replacing Journi’s heart, they performed a living mitral valve transplant on Margaret, the first surgery of its kind.

New Hampshire native Tim Andrews was quite happy to spend his 67th birthday on Wednesday at Mass General Hospital (MGH). On ...