From fantasy to clinical reality: The evolution and future directions of heart transplantation

Abstract

Heart transplantation, once dismissed as fantasy, became one of the major medical achievements of the latter half of the twentieth century. Its development was driven by foundational advances in immunology, scientific innovation, and the courage and compassion of clinical pioneers. Despite remarkable progress—including survival exceeding 40 years in selected recipients—significant challenges persist, notably donor organ shortage and the absence of specific immune tolerance. Emerging strategies, such as xenotransplantation and tissue engineering, now offer realistic prospects for further advancement. This review examines the historical foundations, present limitations, and future directions of heart transplantation.