Chinese General Practice ›› 2026, Vol. 29 ›› Issue (02): 207-212.DOI: 10.12114/j.issn.1007-9572.2025.0159

• Article • Previous Articles    

Effect of Blood Pressure Response Index on Acute Kidney Injury in Elderly Patients with Severe Pneumonia Shock

  

  1. 1. Department of Clinical Laboratory, the Third Affiliated Hospital of Nanjing Medical University/The Second People's Hospital of Changzhou, Changzhou 213000, China
    2. School of Anesthesiology, Xuzhou Medical University, Xuzhou 221000, China
    3. Department of Emergency, the Third Affiliated Hospital of Nanjing Medical University/The Second People's Hospital of Changzhou, Changzhou 213000, China
  • Received:2025-05-10 Revised:2025-07-18 Published:2026-01-15 Online:2025-12-11
  • Contact: LIU Fujing

血压反应指数对老年重症肺炎休克患者急性肾损伤的影响研究

  

  1. 1.213000 江苏省常州市,南京医科大学第三附属医院 常州市第二人民医院检验科
    2.221000 江苏省徐州市,徐州医科大学麻醉学院
    3.213000 江苏省常州市,南京医科大学第三附属医院 常州市第二人民医院急诊医学中心
  • 通讯作者: 刘福菁
  • 作者简介:

    作者贡献:

    闵叶平提出研究思路,设计研究方案并且完成论文的写作;薛垚执行研究过程的实施,采集数据并参与文章写作;冯同保和张合负责数据收集和统计学分析;刘福菁负责文章的质量控制与审查,对文章整体负责,监督管理。

  • 基金资助:
    常州市科技计划项目(CJ20246017)

Abstract:

Background

The risk factors leading to acute kidney injury (AKI) in elderly patients with severe pneumonia have not yet been fully clarified.

Objective

To investigate the association between the blood pressure response index (BPRI) and the incidence of AKI in elderly patients with severe pneumonia-induced shock.

Methods

A retrospective cohort study was conducted to collect clinical data from patients with severe pneumonia-induced shock admitted to the Second People's Hospital of Changzhou between 2016 and 2024. The clinical data of patients were systematically extracted from the hospital's electronic medical record system. BPRI was calculated as mean arterial pressure divided by the vasoactive-inotropic score. Document the incidence of AKI following hospitalization and the 30-day survival rate. Multivariate Logistic regression analysis was performed to evaluate the risk value of BPRI for AKI development. Receiver operating characteristic (ROC) curves were constructed to assess the predictive accuracy of BPRI for AKI, with the area under the curve (AUC) indicating the strength of prediction. Kaplan-Meier survival curves were used to analyze 30-day mortality among patients stratified by AKI risk, with differences tested using the Log-rank test.

Results

A total of 237 patients were included in the study, of whom 96 (40.5%) developed AKI. Multivariate Logistic regression analysis revealed that elevated BPRI was a protective factor against AKI development (OR=0.751, 95%CI=0.678-0.831, P<0.001), increased lactate (OR=1.239, 95%CI=1.039-1.477, P=0.017) and elevated SOFA scores (OR=1.930, 95%CI=1.497-2.488, P<0.001) were identified as risk factors for AKI development. ROC curve analysis demonstrated that the AUC of BPRI for predicting AKI in patients with severe pneumonia-induced shock was 0.809 (95%CI=0.752-0.865), with a cutoff value of 10.063. Patients were stratified into high-risk (BPRI≥10.063, n=79) and low-risk (BPRI<10.063, n=158) groups for AKI development based on the BPRI cutoff value. Kaplan-Meier analysis demonstrated significantly lower 30-day cumulative survival rates in the high-risk AKI group compared to the low-risk group (χ2=35.310, P<0.001).

Conclusion

Elevated BPRI serves as a protective factor against AKI development in patients with severe pneumonia-induced shock and exhibits excellent predictive performance for AKI occurrence.

Key words: Severe pneumonia, Blood pressure response index, Shock, Acute kidney injury, Root cause analysis

摘要:

背景

导致老年重症肺炎患者发生急性肾损伤(AKI)的危险因素目前仍未完全阐明。

目的

探索血压反应指数(BPRI)与老年重症肺炎休克患者发生AKI的关系。

方法

回顾性选取常州市第二人民医院2016—2024年收治的年龄≥60岁重症肺炎休克患者。从医院的电子病历信息系统收集患者的临床资料,计算BPRI,BPRI=平均动脉压/血管活性药物使用强度。记录患者住院后是否发生AKI以及30 d生存率。使用多因素Logistic回归分析探讨BPRI与重症肺炎休克患者发生AKI的关系。采用受试者工作特征(ROC)曲线评估BPRI预测重症肺炎休克患者发生AKI的效能,采用ROC曲线下面积(AUC)表示预测效能大小。使用Kaplan-Meier生存曲线分析不同AKI风险患者的30 d死亡率,Log-rank检验生存差异。

结果

本研究最终纳入237例患者,其中96例(40.5%)发生AKI。多因素Logistic回归分析结果显示,BPRI升高是重症肺炎休克患者发生AKI的保护因素(OR=0.751,95%CI=0.678~0.831,P<0.001),乳酸水平升高(OR=1.239,95%CI=1.039~1.477,P=0.017)、序贯器官衰竭评估(SOFA)评分升高(OR=1.930,95%CI=1.497~2.488,P<0.001)是重症肺炎休克患者发生AKI的危险因素。ROC曲线结果显示,BPRI预测重症肺炎休克患者发生AKI的AUC为0.809(95%CI=0.752~0.865),临界值为10.063。根据BPRI的临界值将患者分为发生AKI高风险患者(BPRI≥10.063,n=79)和发生AKI低风险患者(BPRI<10.063,n=158),Kaplan-Meier曲线显示AKI高风险患者的30 d累积生存率低于AKI低风险患者(χ2=35.310,P<0.001)。

结论

BPRI升高是老年重症肺炎休克患者发生AKI的保护因素,对预测患者发生AKI具有良好的效能。

关键词: 重症肺炎, 血压反应指数, 休克, 急性肾损伤, 影响因素分析