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Changes of Ventricular Repolarization in Acute Myocardial Infarction following Coronary Angioplasty

机译:冠状动脉血管成形术后急性心肌梗死心室复极性变化

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The long JT{sub}c interval of ECG can cause the life threatening arrhythmic events and is a non-questionable factor of sudden death. According to some authors, the JT interval gets shorter during 4-6 hours after percutaneous transluminal coronary angioplasty (PTCA) in acute myocardial infarction (AMI). The aim of this study was to determine the influence of early reperfusion on the course of JT interval in patients with AMI undergoing PTCA. Coronary angiography and PTCA was performed for 35 patients with AMI. The measurement of repolarization parameters (JT, JT{sub}a, JT{sub}c, JT{sub}(ac)) was performed in 12-lead ECG before PTCA and 4-6 hours after it by using computerised ECG analysis system "Kaunas-Load". During 4-6 hours after successful PTCA and reopening of infarction-related artery, the duration of ventricular repolarization was statistically credibly prolonged without exceeding normal values in all ECG leads, except the mean value of JT{sub}(ac) in V1-V6 leads.
机译:ECG的长JT {Sub} C间隔会导致危及生命的心律失常事件,并且是突然死亡的不可疑因素。根据一些作者,JT间隔在急性心肌梗死(AMI)中经皮透视冠状动脉血管成形术(PTCA)后4-6小时内更短。本研究的目的是确定早期再灌注对患有PTCA患者的JT间隔过程的影响。冠状动脉血管造影和PTCA用于35例AMI患者。在PTCA之前的12-Lead ECG和使用计算机的ECG分析系统之前,在12-Lead ECG之前进行了重对参数(JT,JT {Sub} A,JT {Sub} C,JT {Sub}(AC))的测量“kaunas-load”。在成功的PTCA后和梗死相关动脉重新打开后4-6小时内,患心室复极化的持续时间在统计上可靠地延长,而不超过所有ECG引线中的正常值,除了V1-V6中的JT {sub}(AC)的平均值。引导。

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