摘要
目的探讨支气管哮喘患儿心电向量图的变化。方法选择临床上未合并心功能不全的哮喘发作期患儿20例,随机匹配健康儿童20例为对照;用心电自动分析仪描记Frank导联心电向量图,测量F面、H面、LS面QRS环、T环最大向量振幅及方位、QRST夹角、ST向量振幅及方位。微机数理统计。结果哮喘组QRS环时间延长(P<0.01),QRS环、T环最大向量振幅及ST向量振幅增大,其方位偏向左下、左侧与左后,F面QRST夹角增大,多数指标与对照组比较差异无显著性(P>0.05)。结论心电向量图能客观反映支气管哮喘患儿血流动力学变化,哮喘患儿心脏有潜在受损。
ObjectiveTo investigate vectorcardiogram changes of children with bronchial asthma.MethodsVectorcardiogram were taken from 20 children with bronchial asthma who were not complicated by insufficiency of cardiac function, while 20 healthy children were paired as control.The Frank lead vectorcardiogram was recorded with a SR 1000 A automated electrocardiograph (made in Guangdong).The maximal vector amplitude and orientation of QRS loop,T loop and QTS T angle as well as those of ST vector,frontal plane,horizontal plane and left sagittal plane were measured.ResultsIn bronchial asthma group,QRS duration (P<0.01) and the maximal vector amplitude of QRS loop,T loop and ST vector increased,their orientations were toward left inferior or left or left posterior.The QRS T angle of frontal plane increased similarly.There were no obvious differences in many parameters of bronchial asthma group as compared with the control (P>0.05).ConclusionsVectorcardiogram can reflect objectively the heamodynamic changes of children with bronchial asthma.The potential cardiac damage existed in these children should be emphasized clinically.
出处
《湖南医学》
2000年第1期7-8,共2页
Hunan Medical Journal
关键词
哮喘
心电何量图
儿童
asthma
vectorcardiography
ventricular function
child
