INT J LAB HEMATOL:Sysmex XN分析仪上有核红细胞自动化计数的性能评估

2017-04-14 MedSci MedSci原创

外周血有核红细胞(NRBC)的存在不仅与病理状况相关,而且会导致自动血液分析仪(HA)中白细胞计数的过高估计。 研究人员通过新的HA Sysmex XN(XN)评估NRBC计数,以证明在各种NRBC值下手动计数(MC)的精密度和可比性。

近日,来自泰国曼谷Mahidol大学医学院临床病理学里拉吉医院的研究人员报道了一项关于Sysmex XN分析仪上有核红细胞自动化计数的性能评估的研究,相关研究成果刊登于国际杂志INT J LAB HEMATOL上。

外周血有核红细胞(NRBC)的存在不仅与病理状况相关,而且会导致自动血液分析仪(HA)中白细胞计数的过高估计。 研究人员通过新的HA Sysmex XNXN)评估NRBC计数,以证明在各种NRBC值下手动计数(MC)的精密度和可比性。

研究包括最初NRBC阳性的样品。对于精确评估,反复分析了8NRBC水平。为比较研究,通过XN和手动计数分析了234个样本。

对于精密度的研究,手动计数和XN的变异系数百分比分别为1445.6%和1.24.4%。对于XNMC之间的比较研究,NRBCs0%到612.5%不等。回归分析显示r20.98。研究发现平均14.1%和95%的平均偏差在48.76%至76.95%的范围内一致。 NRBC的计数低于200%时,XNNRBC计数与手动计数一致,其符合率为94.2%。

研究表明XN的自动化NRBC计数是精确的,可以代替传统的手动计数,特别是对于NRBC低于200%的标本。

原始出处:

C. Tantanate,C. Klinbua. et al. Performance evaluation of the automated nucleated red blood cell enumeration on Sysmex XN analyzer. INT J LAB HEMATOL .

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    2017-04-15 fengyi812

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大量输注红细胞悬液常见于严重外伤出血、产后大出血、术中大出血、创伤性肝脾破裂出血等。大量输血是指24h以内输血总量达到患者自身总血容量,或4h内输血量超过患者总血容量的1/2。大量出血患者常使用晶体扩容配合红细胞悬液输注,是治疗失血性休克常用输血方案,当失血量超过血容量的30%,还应及时补充胶体液,输注红细胞悬液虽然是临床救治患者的重要手段,但是大量输注红细胞悬液可导致稀释性的血小板和凝血因子缺乏