论文部分内容阅读
应用心阻抗图的方法测定30例有症状的左中隔支阻滞患者及16例无症状的左中隔支阻滞患者的左室收缩间期,并与50例正常人进行了对照分析。结果显示:有症状组的左中隔支阻滞患者比正常组QS_1、PEP、ICT延长,LVET缩短,P/L值增大,无症状组比正常组PEP也延长,LVET缩短,P/L比值增大,但其程度不如有症状组,说明不论有无心血管病的症状,心电图表现为左中隔支阻滞者,其左室收缩间期与某些缺血性心脏病患者的收缩间期的变化是一致的,存在左心功能受损的情况。
The left ventricular systolic interval was measured in 30 patients with symptomatic left middle septal block and 16 patients with asymptomatic left middle septal block by using the method of heart impedance diagram. The control group was compared with 50 healthy controls. The results showed that in patients with symptomatic left-middle septal block, QS_1, PEP and ICT prolonged, LVET shortened and P / L increased in asymptomatic group than in normal group, PEP prolonged, LVET shortened, P / L Ratio increased, but to a lesser degree than the symptomatic group, indicating that regardless of the presence of cardiovascular disease, ECG showed left septal block, the systolic left ventricular systolic and some patients with ischemic heart disease between the contraction Period of change is consistent with the existence of impaired left ventricular function.