KIDNEY INT REP:成人活体肾移植供体年龄及供受体年龄差对移植结果的影响

2021-10-22 MedSci原创 MedSci原创

70-89岁供体与10-15岁供体-受体年龄差异的LDKT是移植物丢失的独立风险因素,并且是受体死亡率的最高风险因素,从老年供体到老年受体的LDKT移植物丢失和受体死亡风险较高。

由于器官短缺,来自边缘性捐赠者的活体肾移植(LDKT)数量正在增加。边缘性供体因素包括年龄(>65岁)和共病,如高血压、糖耐量异常、血脂异常和肥胖。70岁以上的老年活体供体人口正在逐渐增加,因此,需要阐明移植这些供体器官对受体的影响。

据报道,年龄>70岁的活体供体的肾切除术后存活率明显高于匹配的健康对照组。然而,受者的移植物丢失率明显高于50-59岁活体供体的受者。此外,与10至20岁的年龄差异相比,供体-受体年龄差异>30岁会增加移植后12个月内移植物丢失的风险。这一发现表明,根据捐赠者年龄评估接受者结局是不够的,还应调查捐赠者和接受者的年龄,包括捐赠者和接受者之间的年龄差异,以更全面地阐明老年活体供体移植物对受体结局的影响。

这项单中心回顾性队列研究纳入2008年1月至2018年12月期间进行LDKT的853例成人患者。根据供者年龄和供者-受者年龄差异将受者分为以下5组:供者年龄30-49岁,年龄差异10-15岁;供者年龄50-69岁,年龄差异10-15岁;供者年龄50-69岁,年龄差异15-40岁;供者年龄70-89岁,年龄差异10-15岁;供体年龄为70至89岁,年龄差异为15至40岁(分别为第1、2、3、4和5组)。

研究结果显示,第4组——老年供体和老年受体之间的KT,具有最高的移植物丢失风险和死亡率。70-89岁捐赠者(第4组和第5组)的受体的EGFR显著低于其他组的捐赠者。虽然第4组和第5组之间的eGFR差异不显著,但在KT后6个月,第4组的eGFR低于第5组。从老年供体到老年受体的LDKT移植物存活率和死亡率结局最差。

受体移植后的死亡率

总之,供者年龄和供受者年龄差异会影响受者术后eGFR,然而,受者的手术结果没有受到影响。70-89岁供体与10-15岁供体-受体年龄差异的LDKT是移植物丢失的独立风险因素,并且是受体死亡率的最高风险因素,从老年供体到老年受体的LDKT移植物丢失和受体死亡风险较高。年龄>70岁的供体移植受者的表皮生长因子受体显著低于年轻供体移植受者。

参考文献:Adult Living-Donor Kidney Transplantation, Donor Age, and Donor–Recipient Age. Kidney International Reports Available online 14 October 2021. https://doi.org/10.1016/j.ekir.2021.10.002

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    2022-06-28 feather85
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    2021-10-24 gwc389
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    2021-10-22 ly198910

    学到了,感谢分享

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