How did christiaan barnard do the first heart transplant?

Christiaan Barnard performed the first successful heart transplant on December 3, 1967, at Groote Schuur Hospital in Cape Town, South Africa. He and his surgical team transplanted a healthy heart from a 25-year-old donor who had died in a car accident into a 53-year-old patient, Louis Washkansky, who was suffering from severe Heart disease. The operation lasted about five hours, and while Washkansky lived for 18 days post-transplant, the procedure marked a significant milestone in medical history and opened the door to future advancements in organ transplantation.