Xenotransplantation failure dissipated. An American infant girl known as "Baby Fae" with hypoplastic left heart syndrome was the first infant recipient of a xenotransplantation, when she received a baboon heart in 1983. The procedure was performed by Leonard L. Bailey at Loma Linda University Medical Center in Loma Linda, California. Fae died 21 days later due to a humoral-based graft rejection thought to be caused mainly by an ABO blood type mismatch, considered unavoidable due to the rarity of type O baboons. The graft was meant to be temporary, but unfortunately a suitable allograft replacement could not be found in time.
A Change of Heart (How I Met Your Mother) Cohn of Television Without Pity graded the episode at B−. Robert Canning of IGN gave the episode a rating of 8.5 out of 10, saying that Nora was likeable and that he enjoyed the interaction between the friends, who even managed to make "silly filler plots" enjoyable. A Change of Heart (How I Met Your Mother) "A Change of Heart" is the 18th episode of the sixth season of the CBS sitcom "How I Met Your Mother" and the 130th episode overall. It originally aired on February 28, 2011. After Nora announces her intention to marry and settle down, Barney