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南京医科大学学报(自然科学版) 第45卷第6期
·844 · Journal of Nanjing Medical University(Natural Sciences) 2025年6月
·临床研究·
心脏生物标志物对卒中后死亡风险的预测价值
夏姚冬琴 ,焦锦程 ,曹月洲 ,刘 圣 ,郦明芳 ,陈明龙 1*
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南京医科大学第一附属医院心血管内科,介入放射科,江苏 南京 210029
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[摘 要] 目的:探讨心脏生物标志物N⁃末端B型脑钠肽前体(N⁃terminal pro⁃brain natriuretic peptide,NT⁃proBNP)和高敏肌钙
蛋白T(high⁃sensitivity cardiac troponin T,hs⁃cTnT)在急性缺血性卒中(acute ischemic stroke,AIS)患者长期死亡风险预测中的价
值,并构建和验证相关预测模型。方法:本研究为单中心回顾性研究,连续入选2022年1—12月在南京医科大学第一附属医院
接受取栓治疗AIS患者,随访2年。通过Cox回归和LASSO回归筛选全因死亡相关因素,构建3种预测模型,分别为基础模型、
模型1(基础模型+NT⁃proBNP)和模型2(基础模型+hs⁃cTnT),并比较不同模型的预测能力。结果:最终纳入230例患者,按3∶2比
例随机分为训练集(n=146)和测试集(n=84)。随访期间共发生83例全因死亡事件,死亡率为37.2%。多因素Cox回归显示,NT⁃
proBNP每升高1 000 pg/mL,2年全因死亡风险增加27%(HR=1.27,95%CI:1.15~1.40,P < 0.001);而ln(hs⁃cTnT)升高与死亡风险
无显著关联(HR=1.11,95%CI:0.89~1.38,P=0.372)。通过 Cox 回归和 LASSO 回归最终筛选出以下与全因死亡风险相关的变
量:既往房颤、术后美国国立卫生院卒中量表(National Institutes of Health Stroke Scale,NIHSS)评分、基线血红蛋白、白细胞计数
以及随机血糖,并基于此构建基础模型。基础模型训练集和测试集的受试者工作特征曲线下面积(area under the curve,AUC)
分别为0.816和0.778。模型1的训练集和测试集的AUC分别为0.866和0.799,提高了对全因死亡风险的预测能力。模型2的
训练集和测试集的AUC分别为0.811和0.788,对全因死亡风险的预测能力提升不明显。结论:NT⁃proBNP 是AIS患者全因死
亡的独立预测因子,可提高基于传统临床指标模型的死亡风险预测能力,辅助AIS患者的个体化管理。
[关键词] 急性缺血性卒中;N⁃末端B型脑钠肽前体;高敏肌钙蛋白T;预测模型
[中图分类号] R743.3 [文献标志码] A [文章编号] 1007⁃4368(2025)06⁃844⁃10
doi:10.7655/NYDXBNSN250142
Predictive value of cardiac biomarkers for post⁃stroke mortality risk
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XIA Yaodongqin ,JIAO Jincheng ,CAO Yuezhou ,LIU Sheng ,LI Mingfang ,CHEN Minglong 1*
1 Department of Cardiology,Department of Interventional Radiology,the First Affiliated Hospital of Nanjing Medical
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University,Nanjing 210029,China
[Abstract] Objective:To investigate the predictive value of N ⁃ terminal pro ⁃ brain natriuretic peptide(NT ⁃ proBNP)and high ⁃
sensitivity cardiac troponin T(hs⁃cTnT)for long⁃term mortality risk in patients with acute ischemic stroke(AIS),and to develop and
validate corresponding prediction models. Methods:This single⁃center retrospective study consecutively enrolled AIS patients who
underwent thrombectomy at the First Affiliated Hospital of Nanjing Medical University between January and December 2022,with a 2⁃
year follow up. Cox regression and LASSO regression were used to identify factors associated with all⁃cause mortality. Three predictive
models were constructed:a basic model,Model 1(basic model + NT⁃proBNP),and Model 2(basic model+hs⁃cTnT),the predictive
performance of these models was compared. Results:A total of 230 AIS patients were included in the final analysis and were randomly
assigned to the training set(n=146)and testing set(n=84)at a 3∶2 ratio. During follow⁃up,83 all⁃cause mortality events occurred,with
a mortality rate of 37.2%. Multivariate Cox regression showed that for every 1 000 pg/mL increase in NT⁃proBNP,the 2⁃year all⁃cause
mortality increased by 27%(HR=1.27,95% CI:1.15-1.40,P <0.001),while ln(hs⁃cTnT)elevation showed no significant association
with mortality risk(HR =1.11,95% CI:0.89-1.38,P=0.372). Cox regression and LASSO regression identified the following mortality⁃
related variables:history of atrial fibrillation,postoperative National Institutes of Health Stroke scale(NIHSS)score,baseline
hemoglobin,white blood cell count,and random blood glucose,which formed the basic model. The area under the curve(AUC)values
[基金项目] 国家自然科学基金(82270329)
通信作者(Corresponding author),E⁃mail:chenminglong@njmu.edu.cn(ORCID:0000⁃0002⁃9844⁃486X)
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