大脑脊髓液多重PCR周期值可能预测社区获得性脑膜大脑炎的ICU入院情况
Pilar Vizcarra1, David Grandioso Vas1, María Inmaculada Quiles Melero1
1Department of Clinical Microbiology and Parasitology, Hospital Universitario La Paz, IdiPaz, Madrid, Spain.
Diagnostic microbiology and infectious disease
|February 1, 2025
概括
在怀疑脑膜炎时,下脑脊液 (CSF) PCR周期值 (Ct) 与ICU入院增加相关. QIAstat-Dx® ME 面板与诊断脑膜炎的标准方法具有很高的一致性.
科学领域:
- 临床微生物学 临床微生物学
- 传染性疾病 传染性疾病
- 分子诊断学 分子诊断学
背景情况:
- 中枢神经系统感染,包括脑膜炎,需要快速准确的诊断.
- 脑脊液 (CSF) 聚合酶连锁反应 (PCR) 周期值 (Ct) 值可以提供预后信息.
- QIAstat-Dx® ME 面板是一种多重检测方法,用于检测CSF中常见的病原体.
研究的目的:
- 调查CSFPCRCt值与疑似脑膜炎的临床特征之间的关联.
- 评估Ct值对重症监护室 (ICU) 入院和死亡率的预测值.
- 评估QIAstat-Dx® ME小组与已建立的诊断方法的一致性.
主要方法:
- 使用QIAstat-Dx® ME Panel对30名疑似脑膜炎患者的冷脑液样本进行分析.
- 将Ct值分类为低 (≤30) 或高 (>30).
- 使用卡帕系数评估与CSF FilmArray®/culture的一致性.
主要成果:
- 低Ct值与脑脊液脑膜炎标志物有关,并预测了ICU入院 (P = 0.025).
- 低Ct值的个体在前两周内有更高的ICU入院率 (85%对50%;P=0.041).
- 该QIAstat-Dx® ME小组证明了与比较方法 (Kappa = 0.839) 的实质性一致.
结论:
- 脑脊髓炎PCR Ct值可以帮助在脑膜炎患者及时入院ICU的风险分层.
- QIAstat-Dx® ME 面板是疑似脑膜炎的可靠诊断工具.
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