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左室功能障碍和室性心律失常是慢性心脏病患者较常见的临床表现。有左室功能障碍症状的患者常同时伴有室性心律失常。反之,有心律失常症状的患者常有明显的左室功能障碍。持续性室性心律失常的患者死亡率很高,如同时又有左室功能低下者死亡率则更高。心肌梗塞后的室性心律失常冠心病监护室常见的室性心律失常:急性心肌梗塞(AMI)后6小时至2或3天,80%以上的患者出现室性早搏,约40%的患者发生非持续性室性心动过速(VT),原发性室颤的发生率约为2%～3%。
Left ventricular dysfunction and ventricular arrhythmias are more common clinical manifestations in patients with chronic heart disease. Patients with left ventricular dysfunction often accompanied by ventricular arrhythmias. In contrast, patients with arrhythmia often have significant left ventricular dysfunction. Patients with persistent ventricular arrhythmias have a high mortality rate, while those with concurrent left ventricular dysfunction have a higher mortality rate. Ventricular Arrhythmias After Myocardial Infarction Common ventricular arrhythmias in CHD: 6 hours to 2 or 3 days after acute myocardial infarction (AMI), premature ventricular contractions occur in more than 80% of patients and in about 40% of patients Non-sustained ventricular tachycardia (VT), the incidence of primary ventricular fibrillation is about 2% to 3%.