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1、平板运动试验对冠心病诊断作用[摘要]目的:通过平板运动试验与冠状动脉造影的对比分析,评价平板运动试验诊断冠心病的作用。方法:选择疑诊冠心病患者86例,行平板运动试验和冠状动脉造影检查,对比分析两种检查结果。结果:冠状动脉造影阳性35例中,运动试验阳性23例(真阳性),阴性12例(假阴性)。冠状动脉造影阴性51例中,运动试验阳性14例(假阳性),阴性37例(真阴性)。平板运动试验诊断冠心病的敏感性为65.7%,特异性为72.5%,准确性为69.8%o平板运动试验强阳性诊断冠心病的阳性预测值为81.3%。往往在低运动量时出现阳性改变者真阳性率高;运动量不足易出现假阴性结果。结论:行平板运
2、动试验检查时,应综合分析患者运动量的高低、ST段改变的形式和程度等,以提高其诊断冠心病的准确性。[关键词]平板运动试验;冠状动脉造影;冠心病[中图分类号]R541[文献标识码]A[文章编号]1673-7210(2008)05(a)-036-02ThediagnosticvalueoftreadmillexercisetestforcoronaryarterydiseaseZHANGHong-yul,GEHua2,HEZhi-xiangl,XIAOHong-wan1仃.DepartmentofElectrodiagnosis,FengtianHospitalAffiliatedtoSh
3、enyangMedicalCollege,Shenyang110024,China;2.DepartmentofCardiology,FengtianHospitalAffiliatedtoShenyangMedicalCollege,Shenyang110024,China)[Abstract]Objective:Toevaluatethevalueoftreadmillexercisetest(TET)fordiagnosingcoronaryarterydisease(CAD)bycomparativeanalysisoftreadmillexercisetestandcoro
4、naryangiography(CAG).Methods:86patientssuspectedforCADwhounderwentexaminationsofbothTETandCAGwereanalyzed.Results:SignificantCADwasdetectedbyangiographyin35patients,23ofthesehadtruepositiveexercisetestingresuIts,and12hadfalsenegativeresuIts.NosignificantCADwasdetectedintheremaining51patients,an
5、damongthese37hadtruenegativeexercisetestingresuIts,and14hadfalsepositiveresults.SensitivityofTETindiagnosingCADwas65.7%,specificitywas72.5%,andaccuracywas69.8%.Therewasa81.3%positivepredictivevalueinpatientswithstronglypositiveTET・Therewasalwaysahightrue-positiverateinthosepatientswhounderwenta
6、lowexerciseload,andahighfalse-negativerateinthosepatientswhoseexerciseloadwasnotenough.Conclusion:TheseresuItssuggestthat,toimprovetheaccuracyoftreadmillexercisetestingfordiagnosingCAD,somefactorssuchasexerciseload,thedegreeofSTdepressionorelevationandtheshapeofSTsegment,shouldbeanalyzedcareful
7、ly.[Keywords]Treadmillexercisetest;Coronaryangiography;Coronaryarterydisease平板运动试验是临床最常用于协助诊断冠心病心肌缺血的重要检测方法之一,具有经济、简便、实用、相对安全、无创性及可重复性的优点,但存在一定的假阳性和假阴性。本文对86例疑诊冠心病患者先后行平板运动试验和冠状动脉造影检查,通过对比分析检查结果和相关临床资料,探讨影响平板运动试验诊断冠心病准确性的相关因素。1资料与