The severity of coronary heart disease depends on the degree of coronary artery stenosis. If the coronary artery stenosis is mild or moderate, the patient may have no obvious clinical symptoms. If it is a severe coronary artery stenosis, the patient may have chest tightness, chest pain, sweating and other symptoms with a little activity, and even the pain will radiate to the shoulders, back and abdomen. If thrombosis is formed on the basis of vascular stenosis, it will lead to vascular occlusion and even myocardial infarction, and patients may have heart failure and arrhythmia. At this time, the condition is more serious and life-threatening.
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