急性心肌梗塞各种心律失常都可出现,在监护病室治疗的病人中,发生率为72～96％,是本病急性期死亡主要原因之一。窦性心动过速见于约三分之一的病人,与左心衰竭、血容量不足、疼痛、发热、焦虑、兴奋心脏的药物应用等有关。治疗主要应针对原因。如无禁忌症,可用β阻滞剂,文献报告β阻滞剂还有缩小心肌梗塞范围,减低死亡率的作用。 Acute myocardial infarction A variety of arrhythmias can occur, the treatment of patients in the intensive care unit, the incidence of 72 to 96%, is the death of the acute one of the main reasons. About one-third of patients with sinus tachycardia are associated with left ventricular failure, hypovolemia, pain, fever, anxiety, and the use of drugs that excite the heart. The main treatment should be for reasons. If no contraindications, available beta blockers, beta blockers reported in the literature also narrow the scope of myocardial infarction, reduce the role of mortality.