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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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由此可见,在小鼠复苏过程中输入储存红细胞引起的不良效应可被输注结合珠蛋白或血红素结合蛋白所改善,结合珠蛋白输液可防止复苏过程输入储存红细胞引起血浆中高血红蛋白浓度相关的肾损伤,给予人血浆蛋白中结合珠蛋白和血红素结合蛋白可能在长时间低血压导致的严重溶血治疗中有益处。

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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

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