LAC、PAR在判断肺炎严重程度中的作用

李 泽华
华北理工大学附属医院

摘要


社区获得性肺炎（CAP）是临床常见的感染性疾病，一旦进展为重症，患者死亡风险会显著攀升，因此早期精准判断病情严重程度，对改善预后意义重大。目前临床常用的肺炎严重程度评分系统，多存在操作繁琐或指标反馈滞后等问题，难以完全满足临床早期评估的需求。近年来，乳酸（LAC）、前白蛋白（PA）、降钙素原（PCT）、白蛋白（ALB）等血清生物标志物逐渐受到关注。单一生物标志物易受个体差异、基础疾病等多种因素干扰，评估效能有限。在此背景下，有研究提出将LAC与PA联合构建LAC/PA比值，或把PCT与ALB结合形成PAR比值。这类复合指标可整合多维度信息，更敏锐地捕捉感染的严重程度及机体应激状态，为早期识别重症CAP高危患者提供更简便、客观的参考。本文将就单一生物标志物及复合比值在CAP病情评估中的作用展开综述，深入探讨其临床应用前景。

关键词


LAC；PAR；肺炎

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参考


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