Recently, the dispatch and command center of the Beijing Emergency Center received a call for help. There was a man in Xiangshan Park who felt unwell in the precordium. The ambulance team left for the park quickly. After arriving at the scene, the emergency personnel immediately climbed up the mountain with rescue equipment and came to the patient at the fastest speed. The electrocardiogram showed that the patient had acute extensive anterior myocardial infarction. With the joint efforts of the emergency crew, as well as firefighters and staff of the Xiangshan, the patient was lifted down the mountain smoothly, and was sent to the nearest hospital quickly and safely for further treatment.

Here are some tips from 120. Myocardial infarction mostly occurs on the basis of coronary atherosclerotic stenosis. Due to certain incentives, the coronary atherosclerotic plaque ruptures, and platelets in the blood aggregate on the surface of the ruptured plaque to form a blood clot (thrombus), which causes sudden obstruction of the coronary lumen, leading to myocardial ischemia and necrosis. In addition, acute myocardial infarction can also be induced by a dramatic increase in myocardial oxygen consumption or coronary spasm. About 70% of patients with myocardial infarction have aura symptoms, mainly as follows. (1) Angina pectoris occurs suddenly in patients without previous history, or patients with existing angina pectoris have sudden and significantly worsen symptoms, or spontaneous onset without incentive; (2) The angina pectoris is more severe with worsen symptoms and prolonged time, and the symptoms are not easy to be relieved with nitroglycerin; (3) The pain is accompanied by nausea, vomiting, sweating or obvious bradycardia or tachycardia; (4) Angina pectoris occurs accompanied by shortness of breath and dyspnea; (5) Patient with coronary heart disease and sudden unexplained cardiac arrhythmia, heart failure, shock, or syncope in elderly patients, the possibility of myocardial infarction should be considered.

The 120 reminds you that once the above symptoms occur, it is necessary to take them seriously. The patient should stay in bed, keep quiet, and avoid excessive stress. It is recommended to take sublingual nitroglycerin or inhale sprayed nitroglycerin, and go to the hospital immediately after the angina is relieved. If chest pain persists or if severe chest pain is accompanied by nausea, vomiting, difficulty breathing, or fainting, it is necessary to call an ambulance immediately and wait for it.