sudden angina pectoris

Angina pectoris is the uncomfortable manifestation of temporary myocardial ischemia and reversible hypoxia in the precordial area and its vicinity. It is usually caused by coronary artery obstruction or spasm. It is the most common symptom of coronary heart disease. Patients with sudden angina pectoris can relieve symptoms by sublingual nitroglycerin, isosorbide dinitrate, or quick-acting angina pills if angina pectoris has been diagnosed in the past. If the symptoms do not relieve more than half an hour after taking the drug, accompanied by sweating, fatigue, or even blackening of the eyes, you need to go to the hospital immediately. Secondly, chest pain may be acute myocardial infarction, or acute pulmonary embolism, or tension pneumothorax, or aortic dissection aneurysm and other diseases caused by chest pain, all need to be identified immediately after seeing a doctor.