在儿科患者中对ProNephro AKITM测定性能和稳定性的多中心评估
Hind Malaeb1, Sarah Zilka2, Angela Jarden3
1Yale School of Medicine, Department of Laboratory Medicine, New Haven, CT, USA.
概括
一个新的自动化尿中性纤维糖酶相关性脂卡林 (NGAL) 测试表明,在危急儿童中早期检测急性损伤 (AKI) 的分析性能非常出色. 这种NGAL测试是精确的,可重复的,稳定的,满足临床诊断需求.
科学领域:
- 儿科脏病学 儿科脏病学
- 生物标志物发现发现
- 临床诊断 临床诊断 临床诊断
背景情况:
- 急性损伤 (AKI) 在重症儿童中很常见,但目前的诊断标记 (血清肌素,尿液量) 是不可靠的.
- 中性粒细胞凝酶相关脂素 (NGAL) 是早期AKI检测的一个有前途的生物标志物.
- 这项研究评估了一种新的自动化尿液NGAL试验,用于儿科.
研究的目的:
- 评估ProNephroAKITM自动化尿液NGAL试验的分析性能.
- 为了确定测试的灵敏度,特异性,线性,精度,可重现性和稳定性.
- 为了验证其适用于诊断和管理儿科患者的AKI.
主要方法:
- 该ProNephroAKITM测试是在使用儿科尿液样本的Roche cobas® c501分析仪上进行的.
- 评估了分析性能指标,包括检测极限,线性,精度和可重现性.
- 评估了各种储存条件下的干扰,交叉活性和样品稳定性.
主要成果:
- 该试验显示出极好的线性 (50-3000 ng/mL) 和精度 (CVs ≤5.0%).
- 三个实验室的可复制性很高 (≤6.6%),没有常见物质,对比剂或大多数药物的显著干扰.
- 尿NGAL样本在室温下稳定2天,冷藏4天,冷一年以上.
结论:
- 该ProNephroAKITM试验表现出强大的分析性能.
- 它符合儿童AKI诊断和管理中临床应用的标准.
- 这种自动化的NGAL测试为在重症儿童中早期检测AKI提供了可靠的工具.
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