domino transplant
n.— «The life-saving opportunity occured, after the organs of a baby that could not be saved became available. During a 12-hour surgery, Jason received the heart and lungs transplant, making available at the same time a healthy and perfectly compatible heart for Kyla. The procedure was historical because it was the first domino heart transplant performed on patients so young; thus, Jason became the youngest living heart donor and Kyla, the youngest recipient.» —“Historic Domino Heart Transplant in Babies” Heartzine.com Feb. 12, 2005. (source: Double-Tongued Dictionary)