天津医药 ›› 2025, Vol. 53 ›› Issue (7): 684-687.doi: 10.11958/20250460

• 临床研究 • 上一篇    下一篇

PCSK9联合乳酸及SOFA评分对脓毒症患者死亡风险的预测价值

严妍1(), 邓紫薇2, 仇成凤2,3,()   

  1. 1 湖南医药学院医学检验学院(邮编418000)
    2 湖南医药学院总医院临床药学研究室(邮编418000)
    3 湖南医药学院循证医学与临床研究中心(邮编418000)
  • 收稿日期:2025-02-10 修回日期:2025-05-11 出版日期:2025-07-15 发布日期:2025-07-21
  • 通讯作者: E-mail:qiuchengfeng0721@163.com
  • 作者简介:严妍(1993),女,讲师,主要从事重症流行病学方面研究。E-mail:12111952737@qq.com
  • 基金资助:
    国家自然科学基金资助项目(82160075);湖南省自然科学基金项目(2023JJ50447);湖南省教育厅项目(22B1034);湖南省教育厅项目(23C0881)

Predictive value of PCSK9 combined with lactate acid and SOFA score for mortality risk in patients with sepsis

YAN Yan1(), DENG Ziwei2, QIU Chengfeng2,3,()   

  1. 1 School of Public Health and Laboratory Medicine, Hunan University of Medicine, Huaihua 418000, China
    2 Clinical Pharmacy Department, Huaihua 418000, China
    3 Evidence-based Medicine and Clinical Center, Hunan University of Medicine General Hospital, Huaihua 418000, China
  • Received:2025-02-10 Revised:2025-05-11 Published:2025-07-15 Online:2025-07-21
  • Contact: E-mail:qiuchengfeng0721@163.com

摘要:

目的 评估前蛋白枯草溶菌素-9(PCSK9)联合乳酸(Lac)以及序贯器官衰竭评估(SOFA)评分预测脓毒症患者28 d死亡风险的价值。方法 203例脓毒症患者随访28 d,根据临床转归分为死亡组(56例)和存活组(147例)。比较2组患者入院时一般资料和临床指标差异,采用多因素Logistic回归分析建立脓毒症患者28 d死亡风险的预测模型,并绘制预测模型可视化的列线图。结果 死亡组丙氨酸转氨酶、血肌酐、血尿素氮、Lac、PCSK9和SOFA评分均高于存活组(P<0.05),而血红蛋白水平低于存活组。多因素Logistic回归分析显示Lac(OR=1.197,95%CI:1.019~1.435)、PCSK9(OR=1.002,95%CI:1.001~1.003)和SOFA评分(OR=1.858,95%CI:1.528~2.340)升高是脓毒症患者28 d死亡的危险因素(P<0.05)。基于上述3个指标绘制的列线图的线性预测值的截断值为-1.06,将患者分为低风险组(126例)和高风险组(77例)。低风险组和高风险组的28 d内病死率分别为4.0%和66.2%。内部验证显示3指标联合模型具有良好的区分度(C指数为0.924,95%CI:0.881~0.960,P<0.05)、校准度(χ2=11.543,P>0.05)和临床获益。结论 脓毒症患者入院时血清PCSK9、Lac和SOFA评分联合应用可以较好地预测患者28 d死亡的发生风险。

关键词: 脓毒症, 器官功能障碍评分, 乳酸, 前蛋白枯草溶菌素-9, 28天死亡率

Abstract:

Objective To assess the predictive value of proprotein convertase subtilisin/kexin type-9 (PCSK9) combined with lactic acid (Lac) and Sequential Organ Failure Assessment (SOFA) score in determining the 28-day mortality risk of patients with sepsis. Methods A total of 203 patients with sepsis were followed up for 28 days. Patients were divided into the death group (n=56) and the survival group (n=147) according to the clinical outcome. The general data and clinical indicators were compared between the two groups. The prediction model of 28 day mortality risk of sepsis patients was established by multivariate Logistic regression analysis, and the nomogram of the prediction model visualization was drawn. Results Alanine aminotransferase, serum creatinine, blood urea nitrogen, Lac, PCSK9 and SOFA score were higher in the death group than those in the survival group (P<0.05), while the hemoglobin level was lower than that in the survival group (P<0.05). The multivariable Logistic regression analysis identified that elevated levels of Lac (OR=1.197, 95%CI: 1.019-1.435), PCSK9 (OR=1.002, 95%CI: 1.001-1.003) and SOFA score (OR=1.858, 95%CI: 1.528-2.340) were independent risk factors for 28-day mortality in patients with sepsis (P<0.05). Nomogram was developed using these three indicators, and the linear predictor cutoff value was -1.06. Patients were divided into the low-risk group (n=126) and the high-risk group (n=77). The 28-day mortality rates were 4.0% for the low-risk group and 66.2% for the high-risk group. Internal validation showed that the model with these three indicators had good discrimination (C-index=0.924, 95%CI: 0.881~0.960, P<0.05), calibration (χ2=11.543, P>0.05) and clinical utility. Conclusion The combination of serum PCSK9, Lac and SOFA scores at admission effectively predicts 28-day mortality risk in sepsis patients.

Key words: sepsis, organ dysfunction scores, lactic acid, PCSK9, 28-day mortality

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