正常青年人心室除极立体心电向量图分析  

Analysis of Ventricular Depolarization of Three -dimensional Electrocardiogram on Healthy Young People

作　　者：朱明星[1] 刘仁光[1] 张小霞[1] 任淑珍[1] 

机构地区：[1]辽宁医学院附属第一医院心血管病研究所,辽宁锦州121001

出　　处：《中国医药指南》2011年第32期246-248,共3页Guide of China Medicine

摘　　要：目的观测正常青年人心室除极立体心电向量图特点,为立体心电向量图临床应用提供依据。方法对200例正常青年人(男、女各100例),按性别分两组,行心电图、向量图、立体心电图检查,并对立体心电向量图和平面向量图心室除极最大向量振幅及角度、初始40ms内各10ms瞬间向量振幅及角度、QRS环运行时间指标对比分析。结果①立体QRS环最大向量振幅正常范围男性0.67～2.39mV、女性0.72～2.02mV,性别间有显著差异(男性>女性,P<0.05),立体与向量图各平面间有显著差异(立体>平面,P<0.05);最大向量角度正常范围男性:仰角23°～85°/水平角-107°～39°,女性:仰角16°～82°/水平角-107°～31°;②初始40ms内每10ms瞬间向量,其振幅逐渐增大,角度逐渐由右前下转向左后下。结论①正常人立体QRS环最大向量有性别差异,在心室肥大诊断中应予注意;②立体QRS环最大向量(振幅、角度)较平面向量图准确、简便,对心室肥大诊断优于向量图。Objective To observe the characters of ventricular depolarization of Three-dimensional Electrocardiogram（3DECG） on healthy young people.To provide the basis for clinical application of 3D-ECG.Methods Recording 12-lead electrocardiogram,vectorcardiogram（VCG） and 3DECG in sequence in 200 young people（100 males,100 females）,then contrastiving analysis the datas of the maximum vector magnitudes and angles、the beginning 40ms vecror magnitudes and angles of QRS-loop between 3DECG and VCG.Results ①The maximum vector magnitude range of 3DE-CG QRS-loop of male＇s 0.67~2.39mV,female＇s 0.72~2.02mV,it＇s signifi cant difference between male and female、3DECG and VCG;the normal range of the maximum vector angles of male are elevation 23°~85°/aziuth-107°~39°,of female are elevation 16°~82°/aziuth-107°~31°;②The vector magnitude of beginning 40ms of 3DECG QRS-loop increased gradually,and the angle is from right-front-down to left-back-down.Conclusions ①It is signifycant difference between males and females in the maximum vector magnitude of 3D-ECG QRS-loop,so it should be pay attention in diagnosis ventricular hypertrophy;②It is more accuracy and simpler in the maximum vector（magnitude and angle） of 3D-ECG ORS-loop than VCG,and advantager than VCG in diagnosis ventricular hypertrophy.

关 键 词：心电图 向量图 立体心电图 向量 

分 类 号：R540.42[医药卫生—心血管疾病]