[冠状动脉血管成形术后急性心肌梗死时的JT间期变化]
[JT interval changes in acute myocardial infarction following coronary angioplasty].
作者信息
Jarusevicius Gediminas, Navickas Ramūnas, Vainoras Alfonsas, Gargasas Liudas, Vaicekavicius Edvardas
机构信息
Institute of Cardiology and Clinic of Cardiology, Kaunas University of Medicine, Sukileliu 17, 3007 Kaunas, Lithuania.
出版信息
Medicina (Kaunas). 2004;40 Suppl 1:90-3.
OBJECTIVE
The aim of the study was to determine the influence of early reperfusion on the behavior of JT interval in patients with acute myocardial infarction undergoing percutaneous transluminal coronary angioplasty.
MATERIAL AND METHODS
Coronary angiography and percutaneous transluminal coronary angioplasty were done for 14 acute myocardial infarction patients. Measurements were performed from 12-lead surface electrocardiogram with "Kaunas-Load" equipment before percutaneous transluminal coronary angioplasty, 5 minutes and 24 hours after it.
RESULTS
Immediately after percutaneous transluminal coronary angioplasty there were shortenings of JT and JT dispersion (JTd) and after 24 hours in all the patients prolongation of JT and JTd intervals was observed.
CONCLUSIONS
Changes of the repolarization during percutaneous transluminal coronary angioplasty could be related with ischemic myocardial lesion. Early reperfusion has positive impact on the ventricular repolarization.
目的
本研究旨在确定早期再灌注对接受经皮冠状动脉腔内血管成形术的急性心肌梗死患者JT间期行为的影响。
材料与方法
对14例急性心肌梗死患者进行冠状动脉造影和经皮冠状动脉腔内血管成形术。在经皮冠状动脉腔内血管成形术前、术后5分钟和24小时，使用“考纳斯负荷”设备从12导联体表心电图进行测量。
结果
经皮冠状动脉腔内血管成形术后立即出现JT间期和JT离散度（JTd）缩短，24小时后所有患者均观察到JT间期和JTd间期延长。
结论
经皮冠状动脉腔内血管成形术期间复极的变化可能与缺血性心肌损伤有关。早期再灌注对心室复极有积极影响。
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