Haque Omar, Yuan Qing, Uygun Korkut, Markmann James F
Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Boston, MA, USA.
Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Clin Transplant. 2021 Mar;35(3):e14211. doi: 10.1111/ctr.14211. Epub 2021 Jan 21.
Compared to donation after brain death (DBD), livers procured for transplantation from donation after circulatory death (DCD) donors experience more ischemia-reperfusion injury and higher rates of ischemic cholangiopathy due to the period of warm ischemic time (WIT) following withdrawal of life support. As a result, utilization of DCD livers for liver transplant (LT) has generally been limited to short WITs and younger aged donor grafts, causing many recovered DCD organs to be discarded without consideration for transplant. This study assesses how DCD liver utilization and outcomes have changed over time, using OPTN data from adult, first-time, deceased donor, whole-organ LTs between January 1995 and December 2019. Results show that increased clinical experience with DCD LT has translated into increased use of livers from DCD donors, shorter ischemic times, shorter lengths of hospitalization after transplant, and lower rates of retransplantation. The data also reveal that over the past decade, the rate of increase in DCD LTs conducted in the United States has outpaced that of DBD. Together, these trends signal an opportunity for the field of liver transplantation to mitigate the organ shortage by capitalizing on DCD liver allografts that are currently not being utilized.
与脑死亡后捐赠(DBD)相比,从循环死亡后捐赠(DCD)供体获取用于移植的肝脏,由于撤除生命支持后的热缺血时间(WIT),会经历更多的缺血再灌注损伤和更高的缺血性胆管病发生率。因此,DCD肝脏在肝移植(LT)中的应用通常仅限于短WIT和年轻供体移植物,导致许多回收的DCD器官在未考虑移植的情况下被丢弃。本研究利用1995年1月至2019年12月期间成人首次 deceased donor全器官LT的OPTN数据,评估DCD肝脏的利用情况和结果随时间的变化。结果表明,DCD LT临床经验的增加转化为DCD供体肝脏使用的增加、缺血时间缩短、移植后住院时间缩短以及再次移植率降低。数据还显示,在过去十年中,美国进行的DCD LT的增长率超过了DBD。这些趋势共同表明,肝移植领域有机会通过利用目前未被利用的DCD肝脏同种异体移植物来缓解器官短缺问题。