心脏病人最常见的死亡原因之一是猝死,猝死往往由于致命性心律失常而致,首先是由于心室颤动,其次是心脏停搏。长时间心电图监护表明,在心室颤动或心脏停搏之前常常出现心脏自律性或传导性异常,这些心律失常是循环骤停的前兆,故称为危险 One of the most common causes of death from heart disease is sudden death. Sudden death is often due to fatal arrhythmias, first due to ventricular fibrillation, followed by cardiac arrest. Long-term ECG monitoring shows that there is often cardiac self-regulation or conduction abnormalities before ventricular fibrillation or cardiac arrest. These arrhythmias are precursors of circulatory arrest and are therefore referred to as dangerous