文档介绍：2038·冠心病伴左室收缩功能减退患者的心率变异性分析朱雅琴,黄震华,杨菊贤,汤政德【摘要】目的探讨冠心病(CAD)伴左室收缩功能减退患者的心率变异性(HRV)的特征及临床价值。方法将63例CAD患者分为A、B两组,A组为左室射血分数(EF)<50%的CAD患者30例,B组为EFi>50%的CAD患者33例;另选择健康对照者31例(对照组),进行24h动态心电图监测,获得HRV各项时域指标并进行分析。结果A组、B组与健康对照组的SDNN、SDANN、SDNNI间差异均有显著性意义(P<);A组和B组的SDNN、SDANN间差异有显著性意义(P<),SDNNI间差异无显著性意义(P>)。A组、B组与健康对照组的rMSSD、PNN50问差异均无显著性意义(P>0、05)。结论CAD尤其是CAD伴左室收缩功能减退患者的HRV明显降低。【关键词】冠心病;左室收缩功能减退;心率变异性【中图分类号】【文献标识码】A【文章编号】1007—9572(2007)24—2038—02AnalysisofCardiacRhythmVariabilityinPaflen~binedthDecrementofLeftVen-tricularSystofic~mlctionZHUYa—qin,HUANGZhen—hua,YANGJu—xian,,theNinthPeoplesHospitalAffiliatedtoMedicalCollege,ShanghaiJiaotongUniversity,Shanghai200011,China【Abstract]ObjectiveToinvestigatethecharacteristicsandclinicalvalueofcardiacrhythmvariability(CRV)inpatientswithcoronaryarterydisease(binedwithdecrementofleftventricularsystolicfunction,Methods24一hourdynamicECGmonitoringwascarriedouton63patientswithCAD,whoweredividedintogroupA(n=30,EF<50%)andgroupB(n:33,EFt>50%).,SDANNandSDNNI(P<0,01);TherewassignificantdifferenceinSDNNandSDANNbetweengroupAandgroupB(P<),butnosignificantdifferencewasexaminedinSDNNIbetweenthem(P>);GroupAandgroupBwerenotsi