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急性心肌梗塞(AMI)时的溶栓治疗,可使冠状动脉内栓子溶解,阻塞的冠状动脉重新恢复供血,称冠状动脉再通.这种治疗方法一方面可缩小梗塞面积、减轻左室功能紊乱、增加心肌的电稳定性.提高心肌梗塞患者的存活率;但另一方面.心肌的再灌注可使室性心律失常发生率增加.有人认为在溶栓治疗开始后的3h内,出现的心律失常与冠状动脉再通引起的心肌再灌注有关,但3h以后发生的则可能与梗塞范围的大小有关.再灌注所致的心律失常可分为快速性和缓慢性两大
Thrombolysis in acute myocardial infarction (AMI) can dissolve coronary embolus, occluded coronary artery to restore blood supply, called coronary recanalization .This treatment can reduce infarct size and reduce left ventricular function Disturbances and increase the electrical stability of the myocardium to improve the survival rate of patients with myocardial infarction; the other hand, myocardial reperfusion can increase the incidence of ventricular arrhythmias Some people think that within 3h after the start of thrombolytic therapy, Arrhythmia is associated with myocardial reperfusion caused by recanalization of the coronary artery, but may occur after 3 h depending on the size of the infarct size. Arrhythmias due to reperfusion may be divided into two major types, rapid and slow