Effect of ABO-Incompatible Listing on Infant Heart Transplant Waitlist Outcomes: Analysis of the United Network for Organ Sharing (UNOS) Database

Despite the intended merits of ABO-I heart transplantation, ABO-I listing and organ acceptance have not yielded lower waitlist mortality in the United States under the current UNOS allocation algorithm. Consideration should be given to altering the allocation system to one that gives less preference toward blood group compatibility in hopes of improving organ use and reducing waitlist mortality.