Answer
Louis Washkansky lived only 18 days after receiving the first successful human heart transplant. The surgery, performed by Dr. Christiaan Barnard in 1967, was a groundbreaking medical achievement. However, Washkansky's body rejected the transplanted heart, and he died from complications related to the surgery. Despite his short survival, Washkansky's transplant paved the way for future advancements in heart transplantation and saved countless lives.