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慢性胰腺炎并发区域性门静脉高压的影响因素及预测模型的构建

杨佳妮 马志妮 胡应霞 李宗帅 刘妍 张海蓉 缪应雷

引用本文:
Citation:

慢性胰腺炎并发区域性门静脉高压的影响因素及预测模型的构建

DOI: 10.12449/JCH240723
基金项目: 

云南省科技计划项目 (202102AA100062)

伦理学声明:本研究方案由昆明医科大学第一附属医院伦理委员会审批,批号:(2024)伦审L第132号。
利益冲突声明:本文不存在任何利益冲突。
作者贡献声明:杨佳妮负责论文构思设计,数据整理和分析,撰写论文;马志妮、胡应霞、李宗帅、刘妍负责数据收集;张海蓉、缪应雷负责论文指导及质量控制。
详细信息
    通信作者:

    张海蓉, zhr919@sina.com (ORCID: 0000-0002-9918-3673)

Influencing factors for chronic pancreatitis complicated by pancreatogenic portal hypertension and establishment of a predictive model

Research funding: 

Yunnan Province Science and Technology Plan Project (202102AA100062)

More Information
    Corresponding author: ZHANG Hairong, zhr919@sina.com (ORCID: 0000-0002-9918-3673)
  • 摘要:   目的  探讨慢性胰腺炎(CP)并发区域性门静脉高压(PPH)的影响因素,并构建预测模型。  方法  回顾性分析2017年1月—2022年12月于昆明医科大学第一附属医院及楚雄彝族自治州人民医院、文山州人民医院、普洱市人民医院99例CP并发PPH(PPH组)住院患者的临床资料。采取发病率密度抽样法抽取198例CP患者作为对照组(非PPH组)。符合正态分布的计量资料两组间比较采用成组t检验;不符合正态分布的计量资料两组间比较采用Mann-Whitney U检验。计数资料两组间比较采用χ2检验或Fisher精确概率法。采用Lasso回归模型对CP并发PPH潜在的预测因子进行筛选,将筛选后的预测因子纳入多因素Logistic回归分析,筛选出独立危险因素,构建列线图;采用受试者工作特征曲线、校准曲线及Hosmer-Lemeshow拟合优度检验对模型进行内部验证;采用临床决策曲线评估模型的临床实用性。  结果  2组间性别、急性胰腺炎反复发作史、CP急性发作、胆管结石、胰周液体积聚、假性囊肿、肺部感染、C反应蛋白(CRP)升高占比、降钙素原升高占比、纤维蛋白原(FIB)、中性粒细胞与淋巴细胞比值(NLR)、GGT、TBil、DBil、低密度脂蛋白(LDL)、血清淀粉酶、D-二聚体、血清白蛋白比较差异均有统计学意义(P值均<0.05)。Lasso回归筛选的预测变量包括性别、急性胰腺炎反复发作、胆管结石、胰周液体积聚、肺部感染、假性囊肿、CRP、NLR、FIB、LDL。多因素Logistic回归分析显示,性别、急性胰腺炎反复发作、胰周液体积聚、假性囊肿、FIB是CP并发PPH的独立危险因素(OR值分别为2.716、2.138、2.297、2.805、1.313,P值均<0.05)。将上述因素进行模型拟合,经bootstrap内部验证列线图模型曲线下面积为0.787(95%CI:0.730~0.844),且校准曲线接近参考曲线,Hosmer-Lemeshow拟合优度检验表明该模型具有良好的拟合度(χ2=7.469,P=0.487)。临床决策曲线分析显示预测模型具有良好的临床实用性。  结论  男性、急性胰腺炎反复发作、胰周液体积聚、假性囊肿、FIB是CP并发PPH的独立危险因素,构建的列线图具有良好的区分度、校准度和临床实用性。

     

  • 图  1  Lasso回归筛选变量

    注: a,18个临床特征的系数曲线;b,Lasso回归10倍交叉验证选择临床特征。

    Figure  1.  Selection of potential predictors of PPH in patients with CP by the Lasso regression

    图  2  CP患者发生PPH风险预测模型列线图

    Figure  2.  Nomogram of the risk predictive model for PPH in CP patients

    图  3  CP患者发生PPH风险预测模型的ROC曲线

    Figure  3.  ROC curve of the risk predictive model for PPH in CP patients

    图  4  CP患者发生PPH风险预测模型的校准曲线

    Figure  4.  Calibration curve of the risk predictive model for PPH in CP patients

    图  5  CP患者发生PPH风险预测模型的DCA曲线

    Figure  5.  Decision curve of the risk predictive model for PPH in CP patients

    表  1  两组患者一般资料比较

    Table  1.   Comparison of general data between the two groups

    临床指标 PPH组(n=99) 非PPH组(n=198) 统计值 P
    性别[例(%)] χ2=7.913 0.005
    89(89.9) 151(76.3)
    10(10.1) 47(23.7)
    年龄(岁) 46.61±13.29 49.30±15.46 t=-1.483 0.139
    发病年龄(岁) 45.61±13.43 47.52±15.56 t=-1.023 0.307
    诊断年龄(岁) 47.10±12.76 48.66±15.27 t=-0.860 0.390
    BMI(kg/m2 21.00±3.12 20.63±2.90 t=1.107 0.310
    既往史[例(%)]
    糖尿病病史 17(17.2) 38(19.2) χ2=0.179 0.673
    高血压病史 9(9.1) 24(12.1) χ2=0.614 0.433
    胆囊切除术后 13(13.1) 25(12.6) χ2=0.015 0.902
    急性胰腺炎反复发作 68(68.7) 107(54.0) χ2=5.850 0.016
    吸烟史[例(%)] 38(38.4) 63(31.8) χ2=1.797 0.180
    饮酒量[例(%)] χ2=3.160 0.368
    不饮酒 52(52.5) 118(59.6)
    0~20 g/d 1(1.0) 6(3.0)
    >20~80 g/d 11(11.1) 16(8.1)
    >80 g/d 35(35.4) 58(29.3)
    CP急性发作[例(%)] 68(68.7) 101(51.0) χ2=8.409 0.004
    M-ANNHEIM临床分期[例(%)] χ2=1.194 0.762
    Ⅰ期 61(61.6) 130(65.7)
    Ⅱ期 34(34.3) 57(28.8)
    Ⅲ期 3(3.0) 7(3.5)
    Ⅳ期 1(1.0) 4(2.0)
    体质量减轻[例(%)] 31(31.3) 76(38.4) χ2=1.432 0.231
    住院时间(d) 9.00(7.00~14.00) 9.00(6.00~14.00) Z=-0.865 0.387
    住院费用(元) 13 664.54(8 388.05~24 598.10) 10 896.15(6 932.75~32 775.60) Z=-0.818 0.414
    下载: 导出CSV

    表  2  两组患者实验室指标及并发症比较

    Table  2.   Comparison of laboratory data and complication between the two groups

    临床指标 PPH组(n=99) 非PPH组(n=198) 统计值 P
    NLR 4.47(2.41~9.25) 2.01(1.49~3.25) Z=-5.882 <0.001
    PLR 152.10(101.97~209.62) 127.00(97.16~187.78) Z=-0.954 0.340
    HCT 0.41(0.37~0.44) 0.41(0.38~0.45) Z=-1.324 0.185
    PDW 13.45(11.50~14.75) 12.60(11.10~14.53) Z=-1.686 0.092
    CRP升高[例(%)] 59(59.6) 50(25.3) χ2=33.509 <0.001
    PCT升高[例(%)] 25(25.3) 21(10.6) χ2=10.817 0.001
    ALT(U/L) 22.00(13.14~42.50) 26.05(17.68~44.13) Z=-1.462 0.144
    AST(U/L) 19.00(13.08~40.09) 22.85(16.63~35.00) Z=-1.879 0.060
    ALP(U/L) 83.85(63.15~109.90) 77.95(63.78~108.03) Z=-0.813 0.416
    GGT(U/L) 38.90(20.50~138.57) 28.50(15.00~88.00) Z=-2.311 0.021
    TBil(μmol/L) 14.25(9.80~22.08) 10.80(7.45~14.65) Z=-3.799 <0.001
    DBil(μmol/L) 5.70(3.55~9.45) 4.40(3.40~6.13) Z=-2.226 0.026
    BUN(mmol/L) 4.46(3.57~5.84) 4.66(3.71~5.82) Z=-0.379 0.705
    SCr(μmol/L) 73.85(59.75~89.23) 74.95(64.05~85.33) Z=-0.451 0.652
    TC(mmol/L) 3.58±1.41 3.82±1.06 t=-1.658 0.098
    LDL(mmol/L) 1.94±0.64 2.24±0.82 t=-3.210 0.001
    TG(mmol/L) 1.28(0.89~1.81) 1.19(0.84~1.79) Z=-1.046 0.295
    血淀粉酶(U/L) 111.50(54.30~304.00) 67.50(50.00~133.30) Z=-2.950 0.003
    TT(s) 17.20(16.10~18.80) 17.70(16.50~18.90) Z=-1.348 0.178
    INR 1.09±0.11 1.08±0.15 t=0.526 0.599
    FIB(g/L) 3.96(3.00~5.36) 3.10(2.61~4.08) Z=-4.672 <0.001
    DD2(mg/L) 0.96(0.32~2.50) 0.30(0.15~1.06) Z=-4.716 <0.001
    Alb(g/L) 37.76±6.29 39.84±5.58 t=-2.896 0.004
    Ca2+(mmol/L) 2.24(2.13~2.36) 2.28(2.19~2.39) Z=-1.946 0.520
    并发症[例(%)]
    胰周淋巴结肿大 21(21.2) 40(20.2) χ2=0.041 0.839
    胰周液体积聚 37(37.4) 24(12.1) χ2=25.788 <0.001
    假性囊肿 44(44.4) 30(15.2) χ2=30.272 <0.001
    十二指肠梗阻 7(7.1) 9(4.5) χ2=0.826 0.364
    胰瘘 2(3.2) 1(0.8) χ2=0.381 0.537
    胆管结石 38(38.4) 44(22.2) χ2=8.625 0.003
    假性动脉瘤 1(1.0) 0(0.0) χ2=2.007 0.333
    胆总管狭窄 9(9.1) 8(4.0) χ2=3.120 0.077
    肺部感染 23(23.2) 16(8.1) χ2=13.283 <0.001
    肝损伤 27(27.3) 42(21.2) χ2=1.359 0.244
    肾损伤 5(5.1) 10(5.1) χ2=0.000 >0.05
    脾梗死 7(7.1) 20(10.1) χ2=0.733 0.392
    下载: 导出CSV

    表  3  CP并发PPH多因素Logistic回归分析

    Table  3.   Multivariate Logistic regression analysis of PPH in patients with CP

    变量 P OR 95%CI
    性别 0.024 2.716 1.139~6.480
    急性胰腺炎反复 发作史(复发) 0.016 2.138 1.152~3.968
    胆管结石 0.065 1.185 0.964~3.419
    假性囊肿 0.001 2.805 1.485~5.298
    胰周液体积聚 0.018 2.297 1.153~4.577
    肺部感染 0.478 1.363 0.580~3.202
    CRP 0.166 1.596 0.824~3.090
    LDL 0.159 0.751 0.504~1.118
    NLR 0.056 1.072 0.998~1.152
    FIB 0.014 1.313 1.057~1.631
    下载: 导出CSV
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  • 收稿日期:  2023-11-01
  • 录用日期:  2023-12-21
  • 出版日期:  2024-07-25
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