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基于血浆渗透压建立急性ST段抬高型心肌梗死重症患者发生院内死亡风险预测模型

贾吉 陶四明

贾吉, 陶四明. 基于血浆渗透压建立急性ST段抬高型心肌梗死重症患者发生院内死亡风险预测模型[J]. 昆明医科大学学报, 2022, 43(12): 58-65. doi: 10.12259/j.issn.2095-610X.S20221212
引用本文: 贾吉, 陶四明. 基于血浆渗透压建立急性ST段抬高型心肌梗死重症患者发生院内死亡风险预测模型[J]. 昆明医科大学学报, 2022, 43(12): 58-65. doi: 10.12259/j.issn.2095-610X.S20221212
Ji JIA, Siming TAO. Development of A Plasma Osmolality Prediction Model for the Risk of In-hospital Death in Critically Ill Patients with Acute ST-segment Elevation Myocardial Infarction[J]. Journal of Kunming Medical University, 2022, 43(12): 58-65. doi: 10.12259/j.issn.2095-610X.S20221212
Citation: Ji JIA, Siming TAO. Development of A Plasma Osmolality Prediction Model for the Risk of In-hospital Death in Critically Ill Patients with Acute ST-segment Elevation Myocardial Infarction[J]. Journal of Kunming Medical University, 2022, 43(12): 58-65. doi: 10.12259/j.issn.2095-610X.S20221212

基于血浆渗透压建立急性ST段抬高型心肌梗死重症患者发生院内死亡风险预测模型

doi: 10.12259/j.issn.2095-610X.S20221212
基金项目: 云南省卫生和计划生育委员会医学后备人才培养计划基金资助项目(H-2017019);云南省“高层次人才培养支持计划”入选名医专项基金资助项目(YNWR-MY-2020-024)
详细信息
    作者简介:

    贾吉(1988~),男,云南昭通人,医学硕士,主治医师,主要从事心血管内科起搏电生理工作

    通讯作者:

    陶四明,E-mail:taosm6450@126.com

  • 中图分类号: R541.4

Development of A Plasma Osmolality Prediction Model for the Risk of In-hospital Death in Critically Ill Patients with Acute ST-segment Elevation Myocardial Infarction

  • 摘要:   目的   建立并验证血浆渗透压对急性ST段抬高型心肌梗死(acute ST-segment elevation myocardial infarction,STEMI)重症患者院内死亡风险预测模型。  方法  通过回顾性分析患者电子病历资料,选取2015年1月至2020年12月于云南大学附属医院心血管内科住院的STEMI重症患者,提取患者的一般信息、实验室检查、合并疾病及用药情况等,筛选STEMI重症患者院内死亡风险危险因素并建立预测模型。  结果  利用LASSO回归及多因素Logistic回归筛选出白蛋白(ALB)、白细胞(WBC)、血小板(PLT)、血肌酐(Scr)、是否服用他汀类药物、是否服用血管紧张素转化酶抑制剂(ACEI)或血管紧张素转化酶受体拮抗剂(ARB)类药物、血浆渗透压为STEMI重症患者是否发生院内死亡的独立预测因子(P < 0.05),据此7个预测变量绘制列线图,模型检验结果显示其区分度、校准度较好,决策曲线分析(DCA)显示阈值概率5%~95%时,临床使用该模型是可以获益的。  结论  构建的包含7个变量预测模型具有较好的区分度和校准度,可作为评估STEMI重症患者院内死亡风险参考工具。
  • 图  1  22个变量的LASSO曲线

    Figure  1.  LASSO curves for 22 variables

    图  2  在LASSO模型中通过10倍交叉验证的方法筛选最合适λ的过程

    Figure  2.  Selection of predictors using the LASSO Logistic regression model

    图  3  STEMI重症患者发生院内死亡风险的预测模型列线图(注:变量单位见表3)

    Figure  3.  Nomogram predicting in-hospital mortality in critically ill patients with STEMI

    图  4  预测模型预测STEMI重症患者发生院内死亡风险ROC曲线

    Figure  4.  ROC of the nomogram for predicting in-hospital mortality in critically ill patients with STEMI

    图  5  预测模型在训练集中的校准曲线

    Figure  5.  Calibration curve of prediction model in training sub-cohort

    图  6  预测模型在验证集中的校准曲线

    Figure  6.  Calibration curve of prediction model in validation sub-cohort

    图  7  预测模型在训练集及验证集中的DCA分析

    Figure  7.  Decision curve analysis of the nomogram predicting in-hospital mortality in critically ill patients with STEMI

    表  1  患者一般资料比较[($\bar x \pm s $),n(%),M(P25,P75)]

    Table  1.   Comparison of general information of patients [($\bar x \pm s $),n(%),M(P25,P75)]

    临床特征未发生院内死亡(n=632)院内死亡(n = 177)W/t/χ2P
    男性 402(63.6) 107(60.5) 0.463 0.496
    年龄(岁) 68.0 ± 13.7 71.8 ± 13.6 −3.294 < 0.001*
    吸烟史 113(17.9) 63(35.6) 0.183 0.669
    高血压 359(56.8) 90(50.8) 1.753 0.186
    糖尿病 231(36.6) 64(36.2) 0.000 0.993
    Killip≥2级 322(50.9) 102(57.6) 2.212 0.137
    COPD(%) 17(2.7) 10(5.6) 2.894 0.089
    慢性肾脏病 132(20.9) 52(29.4) 5.203 0.022*
    高脂血症 324(51.3) 69(39.0) 7.867 0.005*
    瓣膜病 133(21.0) 44(24.9) 0.965 0.326
    心房颤动 201(31.8) 76(42.9) 7.127 0.008*
    脑梗死 37(5.9) 15(8.5) 1.173 0.279
    服用阿司匹林 618(97.8) 155(87.6) 31.569 < 0.001*
    服用他汀类 600(94.9) 128(72.3) 76.037 < 0.001*
    服用ACEI/ARB 584(92.4) 73(41.2) 233.870 < 0.001*
    WBC(×109/L) 8.9(7.0,10.9) 14.0(9.5,17.5) 28211 < 0.001*
    PLT(×109/L) 246(192,338) 172(100,279) 75920 < 0.001*
    RDW(%) 14.4(13.5,15.8) 15.9(14.6,17.7) 34000 < 0.001*
    ALB(g/L) 35(30,39) 28(24,32) 84690 < 0.001*
    Scr(μmol/L) 88.4(70.7,114.9) 167.9(97.2,265.2) 31276 < 0.001*
    cTnT(ng/mL) 0.62(0.05,2.58) 0.92(0.16,4.11) 46775 < 0.001*
    血浆渗透压(mOsm/L) 294.5(289.7,298.0) 297.4(288.9,307.3) 36175 < 0.001*
      COPD = 慢性阻塞性肺疾病。*P < 0.05。
    下载: 导出CSV

    表  2  训练集和验证集的一般资料比较[($\bar x \pm s $),n(%),M(P25,P75)]

    Table  2.   Comparison of data in training and validation groups [($\bar x \pm s $),n(%),M(P25,P75)]

    临床特征训练集(n = 573)验证集(n = 236)W/t/χ2P
    男性 357(62.3) 152(64.4) 0.793 0.629
    年龄(岁) 68.9 ± 13.6 68.7 ± 14.2 0.237 0.939
    有吸烟史 123(21.5) 53(22.5) 0.217 0.511
    高血压 311(54.3) 138(58.5) 0.018 0.310
    糖尿病 213(37.2) 82(34.7) 0.695 0.577
    Killip≥2级 302(52.7) 122(51.7) 0.337 0.854
    COPD 17(3.0) 10(4.2) 0.871 0.484
    慢性肾脏病 131(22.9) 53(22.5) 0.021 0.974
    高脂血症 275(48.0) 118(50.0) 1.271 0.659
    瓣膜病 126(22.0) 51(21.6) 0.048 0.980
    心房颤动 199(34.7) 78(33.1) 0.093 0.707
    脑梗死 35(6.1) 17(7.2) 0.174 0.674
    服用阿司匹林 545(95.1) 228(96.6) 0.227 0.452
    服用他汀类 511(89.2) 217(91.9) 0.027 0.287
    服用ACEI/ARB 461(80.5) 196(83.1) 2.024 0.447
    WBC(×109/L) 9.5(7.5,11.9) 9.1(7.0,11.9) 64445 0.114
    PLT(×109/L) 237(172,328) 242(176,329) 64776 0.592
    RDW(%) 14.7(13.6,16.3) 14.7(13.7,16.2) 65879 0.959
    ALB(g/L) 33(28,38) 34(28,38) 72021 0.881
    Scr(μmol/L) 88.4(70.7,132.6) 97.2(70.7,150.3) 66992 0.439
    cTnT(ng/mL) 0.81(0.07,3.05) 0.57(0.08,1.99) 68391 0.128
    血浆渗透压(mOsm/L) 294.5(289.7,298.9) 294.6(289.4,300.2) 66566 0.691
      注:COPD = 慢性阻塞性肺疾病。
    下载: 导出CSV

    表  3  LASSO回归筛选的8个变量的多因素Logistic回归结果

    Table  3.   Multivariate Logistic regression analysis of 8 variables

    变量OR95%CIP
    WBC(×109/L)
    4.0~10(参照)

    1.0

    -

    -
    < 4.0 3.607 0.890~14.693 0.072
    > 10.0 6.851 4.001~12.133 < 0.001*
    ALB(g/L)
    ≥40(参照)

    1.0

    -

    -
    < 40 2.602 1.570~4.335 < 0.001*
    PLT(×109/L)
    100~300(参照)

    1.0

    -

    -
    < 100 5.625 2.493~13.249 < 0.001*
    > 300 0.475 0.267~0.827 0.009*
    Scr(μmol/L)
    < 110(参照)

    1.0

    -

    -
    > 110 3.231 1.928~5.466 < 0.001*
    RDW(%)
    13~14(参照)

    1.0

    -

    -
    < 13.0 0.477 0.068~1.998 0.370
    > 14.0 1.563 0.831~3.025 0.174
    血浆渗透压(mOsm/L)
    280~310(参照)

    1.0

    -

    -
    < 280 1.255 0.724~2.177 0.417
    > 310 15.765 4.706~73.703 < 0.001*
    服用他汀类药物 0.350 0.174~0.701 0.003*
    服用ACEI或ARB 0.144 0.084~0.244 < 0.001*
      *P < 0.05。
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-05-08
  • 网络出版日期:  2022-12-05
  • 刊出日期:  2022-12-25

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