Causes of cardiac arrest

Cardiac arrest may be caused by coronary atherosclerotic heart disease, Brugada syndrome, heart failure, etc.

1. Coronary atherosclerotic heart disease

due to coronary artery lumen stenosis or occlusion, resulting in abnormal cardiac conduction or pacing, resulting in cardiac arrest.

2. Brugada syndrome

due to coding myocardial ion channel gene mutation, resulting in abnormal ion channel function, resulting in ventricular fibrillation, resulting in cardiac arrest.

3. Heart failure

due to heart failure, resulting in decreased myocardial contractility, cardiac enlargement, increased oxygen demand and consumption, resulting in malignant arrhythmia, resulting in cardiac arrest.