Cardiac vasospasm generally refers to coronary artery spasm, and the common symptoms of patients include chest pain, chest tightness, low blood pressure and shock, arrhythmia and so on. 1. Chest pain: angina pectoris is mainly caused by myocardial ischemia due to coronary artery spasm. If the coronary artery is completely occluded, it may lead to acute myocardial infarction. 2. Chest tightness: if the degree of coronary artery spasm is relatively mild, patients may only manifest chest tightness. 3. Hypotension and shock: When myocardial ischemia is severe due to coronary artery spasm and the ejection fraction of the heart decreases, hypotension and shock may occur. 4. Arrhythmia: If the spasm lasts for a long time and the degree is heavy, the patient may have arrhythmia, such as high atrioventricular block, ventricular arrhythmia leading to cardiac arrest, and so on. Patients with coronary artery spasm should go to the cardiovascular and other related departments of the hospital in time to avoid life-threatening situations.