Segev D L, Montgomery R A
Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA. Dorry Segev,
Am J Transplant. 2008 May;8(5):1051-5. doi: 10.1111/j.1600-6143.2008.02192.x.
Use of live non-directed donors (LNDDs), or altruistic donors, has increased significantly over the past decade and has fueled debate regarding the ethics and allocation of this new source of live donor kidneys. Three allocation philosophies are currently in use, including donor-centric, recipient-centric and socio-centric models, and our group has also advocated the use of LNDDs in paired donation. However, no universally accepted allocation policy exists, nor does national oversight. To determine allocation patterns resulting from current practice models, we analyzed the 372 LNDD kidney transplants performed in the United States since 1998. Most LNDD transplants occurred at a minority of centers, with only five centers performing over 10, and over 28% of LNDDs traveled out-of-state to donate. Furthermore, a center's use of LNDD kidneys did not correlate with that center's organ shortage. Finally, African Americans were significantly under-represented among recipients who were allocated LNDD kidneys, even after accounting for differences in the racial makeup of the waiting list representing centers using LNDD kidneys. These disparities suggest the need for continued monitoring and discussion of LNDD at a national level. If non-directed donation continues to rise at its current rate, a national allocation policy may be reasonable.
在过去十年中,活体非指定捐赠者(LNDDs),即利他性捐赠者的使用显著增加,引发了关于这种新的活体捐赠肾脏来源的伦理和分配问题的争论。目前有三种分配理念在使用,包括以捐赠者为中心、以接受者为中心和以社会为中心的模式,我们团队也主张在配对捐赠中使用LNDDs。然而,不存在普遍接受的分配政策,也没有国家监督。为了确定当前实践模式产生的分配模式,我们分析了自1998年以来在美国进行的372例LNDD肾脏移植。大多数LNDD移植发生在少数中心,只有五个中心进行了超过10例移植,超过28%的LNDDs跨州捐赠。此外,一个中心对LNDD肾脏的使用与该中心的器官短缺情况无关。最后,在接受LNDD肾脏分配的受者中,非裔美国人的比例明显偏低,即使在考虑了使用LNDD肾脏的中心等待名单上种族构成的差异之后也是如此。这些差异表明需要在国家层面持续监测和讨论LNDDs。如果非指定捐赠继续以目前的速度增长,制定一项全国性的分配政策可能是合理的。