The Kidney Donor Profile Index (KDPI) of marginal donors allocated by standardized pretransplant donor biopsy assessment: distribution and association with graft outcomes.

The Kidney Donor Profile Index (KDPI) of marginal donors allocated by standardized pretransplant donor biopsy assessment: distribution and association with graft outcomes.
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DOI:
10.1111/ajt.12928
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发表时间:
2014-11
期刊:
American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
影响因子:
--
通讯作者:
Maggiore U
Maggiore U
中科院分区:
其他
文献类型:
--
作者:
Gandolfini I;Buzio C;Zanelli P;Palmisano A;Cremaschi E;Vaglio A;Piotti G;Melfa L;La Manna G;Feliciangeli G;Cappuccilli M;Scolari MP;Capelli I;Panicali L;Baraldi O;Stefoni S;Buscaroli A;Ridolfi L;D'Errico A;Cappelli G;Bonucchi D;Rubbiani E;Albertazzi A;Mehrotra A;Cravedi P;Maggiore U

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基于移植前供体活检(PTDB)的单肾或双肾移植边缘供体分配系统可以增加肾供体特征指数(KDPI)在最高范围(例如>80或>90)的器官的使用,在美国,其丢弃率接近50%。为了验证这一假设,我们回顾性计算了KDPI并分析了442例边缘肾移植的结局(340例单次移植:278例PTDB Remuzzi评分<4 [中位数KDPI:87;四分位距(IQR):78-94]和62例评分=4 [中位数KDPI:87; IQR:76-93]; 102例双次移植[中位数KDPI:93; IQR:86-96])和248例单次标准移植对照[中位数KDPI:36; IQR:18-51]。基于PTDB的边缘移植物分配导致KDPI为80-90的肾脏的丢弃率为15%,KDPI为91-100的肾脏的丢弃率为37%。尽管边缘肾移植者的1年eGFR显著较低,(PTDB评分<4和≥ 4的双移植、单肾分别为-9.3、-17.9和-18.8ml/min; P<0.001),移植物存活率(中位随访3.3年)边缘肾移植和标准肾移植之间相似(风险比:1.20 [95%置信区间:0.80 - 1.79; P=0.38])。总之,基于PTDB的分配允许安全移植KDPI在最高范围内的肾脏,否则可能被丢弃。
Pre-transplant donor biopsy (PTDB)-based marginal-donor allocation systems to single or dual renal transplantation could increase the use of organs with Kidney Donor Profile Index (KDPI) in the highest range (e.g. >80 or >90), whose discard rate approximates 50% in the US. To test this hypothesis, we retrospectively calculated the KDPI and analyzed the outcomes of 442 marginal kidney transplants (340 single transplants: 278 with a PTDB Remuzzi score <4 [median KDPI:87; interquartile range(IQR):78-94] and 62 with a score =4 [median KDPI:87; IQR:76-93]; 102 dual transplants [median KDPI: 93; IQR:86-96]) and 248 single standard transplant controls [median KDPI:36; IQR:18-51]. PTDB-based allocation of marginal grafts led to a limited discard rate of 15% for kidneys with KDPI of 80-90 and of 37% for kidneys with a KDPI of 91-100. Although 1-year eGFRs were significantly lower in recipients of marginal kidneys (-9.3, -17.9, and -18.8ml/min, for dual transplants, single kidneys with PTDB score <4, and =4, respectively; P<0.001), graft survival (median follow-up 3.3 years) was similar between marginal and standard kidney transplants (hazard ratio: 1.20 [95% confidence interval: 0.80 to 1.79; P=0.38]). In conclusion, PTDB-based allocation allows the safe transplantation of kidneys with KDPI in the highest range that may otherwise be discarded.
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