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2023 年3 期 第31 卷

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大脑半球大面积梗死患者短期预后不良风险预测列线图模型的构建与验证

ConstructionandValidationofNomogramModelforPredictingtheRiskofPoorShort-termPrognosisinLargeHemisphereInfarctionPatients

作者:王宇梅,徐格曼,丁俭,王猛猛,盛世英,刘猛

单位:
苏州大学附属第三医院神经内科
单位(英文):
DepartmentofNeurology,theThirdAffiliatedHospitalofSoochowUniversity,Changzhou213003,China
关键词:
大脑梗死; 大脑半球大面积梗死; 预后; 影响因素分析; 列线图模型;
关键词(英文):
Cerebralinfarction;Largehemisphereinfarction;Prognosis;Rootcauseanalysis;Nomogrammodel
中图分类号:
R743.33
DOI:
10.12114/j.issn.1008-5971.2023.00.039
基金项目:
常州市科技计划资助项目( CJ20190085?,CJ20220201?)

摘要:

目的 构建大脑半球大面积梗死(LHI)患者短期预后不良风险预测列线图模型并验证其预测效能。方法 回顾性收集2019年1月至2022年8月苏州大学附属第三医院神经内科收治的LHI患者264例为研究对象,根据发病30 d后改良Rankin量表(mRS)评分将患者分为预后良好组(mRS评分≤3分)和预后不良组(mRS评分4~6分)。收集患者的临床资料、实验室检查指标及影像学检查指标,采用多因素Logistic回归分析探讨LHI患者短期预后不良的影响因素,采用R 4.2.1软件包及rms程序包建立LHI患者短期预后不良风险预测列线图模型;采用Hosmer-Lemeshow拟合优度检验评价该列线图模型的拟合程度;采用Bootstrap法重复抽样1 000次,计算一致性指数;绘制校准曲线以评估该列线图模型预测LHI患者短期预后不良的效能;采用ROC曲线分析该列线图模型对LHI患者短期预后不良的预测价值。结果 264例LHI患者中预后良好47例(17.8%),预后不良217例(82.2%)。两组年龄、有心房颤动史者占比、有心功能不全史者占比,入院时美国国立卫生研究院卒中量表(NIHSS)评分、急性生理学与慢性健康状况评分系统Ⅱ(APACHEⅡ)评分、格拉斯哥昏迷量表(GCS)评分、TOAST分型、凝视发生率,住院期间意识障碍发生率、肺部感染发生率、需要机械通气者占比,白细胞计数、中性粒细胞计数、淋巴细胞计数、中性粒细胞与淋巴细胞比值(NLR)、C反应蛋白(CRP)、红细胞分布宽度(RDW)、D-二聚体、空腹血糖、肌酸激酶同工酶(CK-MB)、梗死体积、中线移位,侧脑室受压、基底池受压、其他区域受累发生率比较,差异有统计学意义(P<0.05)。多因素Logistic回归分析结果显示,入院时NIHSS评分、入院时APACHEⅡ评分、NLR、侧脑室受压是LHI患者短期预后不良的独立影响因素(P<0.05)。基于上述影响因素构建LHI患者短期预后不良风险预测列线图模型。Hosmer-Lemeshow拟合优度检验结果显示,该列线图模型拟合较好(χ2=4.867,P=0.772);该列线图模型的一致性指数为0.910;校准曲线分析结果显示,该列线图模型预测LHI患者短期预后不良的发生率与实际发生率基本吻合;ROC曲线分析结果显示,该列线图模型预测LHI患者短期预后不良的AUC为0.915[95%CI(0.880,0.950)],灵敏度为70.5%,特异度为97.9%,约登指数为0.684。结论 入院时NIHSS评分升高、入院时APACHEⅡ评分升高、NLR升高、侧脑室受压是LHI患者短期预后不良的独立危险因素,基于上述因素构建的列线图模型对LHI患者短期预后不良具有较高的预测价值。

英文摘要:

ObjectiveToconstructanomogrammodelforpredictingtheriskofpoorshort-termprognosisinlarge hemisphereinfarction(LHI)patientsandverifyitspredictiveefficiency.MethodsAtotalof264LHIpatientshospitalizedinDepartmentofNeurologyintheThirdAffiliatedHospitalofSoochowUniversityfromJanuary2019toAugust2022wereretrospectivelyselected.Thepatientsweredividedintogoodprognosisgroup[modifiedRankinScale(mRS)score≤ 3]andpoorprognosisgroup(mRSscore4-6)accordingtothemRSscoreat30daysafterstroke.Theclinicaldata,laboratoryindexesandimagingexaminationindexeswerecollected.ThemultivariateLogisticregressionanalysiswasusedtoanalyzetheinfluencingfactorsofpoorshort-termprognosisinLHIpatients.Thenomogrammodelforpredictingtheriskofpoorshort-termprognosisinLHIpatientswasconstructedbyR4.2.1softwarepackageandrmspackage.Hosmer-Lemeshowgoodnessoffittestwasusedtoevaluatethefittingdegreeofthenomogrammodel.Bootstrapmethodwasusedtorepeatedlysample1000times,andtheconsistencyindex(CI)wascalculated.Calibrationcurvewasdrawntoevaluatetheeffectivenessofthenomogrammodelfor predictingtheriskofpoorshort-termprognosisinLHIpatients,andtheROCcurvewasusedtoanalyzethepredictivevalueofthenomogrammodelforpoorshort-termprognosisinLHIpatients.ResultsAmong264LHIpatients,47(17.8%)hadgoodprognosisand217(82.2%)hadpoorprognosis.Thereweresignificantdifferencesinage,proportionofpatientswithatrialfibrillation,proportionofpatientswithcardiacinsufficiency,NationalInstitutesofHealthStrokeScale(NIHSS)score,AssessmentofAcutePhysiologyandChronicHealthStatusⅡ(APACHEⅡ)scoreatadmission,GlasgowComaScale(GCS)scoreatadmission,TOASTclassificationatadmission,incidenceofgazeatadmission,incidenceofconsciousnessdisorderandpulmonaryinfectionduringhospitalization,proportionofpatientsrequiringmechanicalventilationduringhospitalization,whitebloodcellcount,neutrophilcount,lymphocytecount,neutrophiltolymphocyteratio(NLR),C-reactiveprotein(CRP),redbloodcelldistributionwidth(RDW),D-dimer,fastingbloodglucose,creatinekinaseisoenzyme(CK-MB),infarctvolume,midlineshift,incidenceoflateralventricularcompression,incidenceofbasalcisterncompressionandincidenceofotherregionscompressionbetweenthetwogroups(P<0.05).MultivariateLogisticregressionanalysisshowedthatNIHSSscoreatadmission,APACHEⅡscoreatadmission,NLR,andlateralventricularcompressionweretheinfluencingfactorsofpoorshort-termprognosisinLHIpatients(P<0.05).Thenomogrammodelforpredictingpoorshort-termprognosisinLHIpatientswasconstructedbasedontheaboveinfluencingfactors.TheresultsofHosmer-Lemeshowgoodnessoffittestshowedthatthenomogrammodelfitswell(χ =42.867,P=0.772).TheCIofthenomogrammodelwas0.910.Theresultsofcalibrationcurveanalysisshowedthattheincidenceofpoorshort-termprognosisinLHIpatientspredictedbythenomogrammodelwasbasicallyconsistentwiththeactualincidenceofpoorshort-termprognosisinLHIpatients.TheresultsofROCcurveanalysisshowedthattheAUCofthenomogrammodelforpredictingthepoorshort-termprognosisinLHIpatientswas0.915[95%CI(0.880,0.950)],thespecificitywas70.5%,thesensitivitywas97.9%,andYoudenindexwas0.684.ConclusionTheincreasedNIHSSscoreatadmission,APACHEⅡscoreatadmissionandNLR,andlateralventricularcompressionaretheriskfactorsofpoorshort-termprognosisinLHIpatients.Thenomogrammodelconstructedbasedontheabovefactorshasahighpredictivevaluefortheriskofpoorshort-termprognosisinLHIpatients.

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