Generally speaking, myocardial infarction is a senile disease, and acute myocardial infarction patients under the age of 40 are extremely rare.

But now the incidence of acute myocardial infarction in people over 25 years old is soaring every year, and most young patients with acute myocardial infarction are generally between 35 and 44 years old.

　　In short, myocardial infarction is that the blood vessels of the heart are blocked by plaque, and the local blood flow is interrupted by coronary ischemia and hypoxia.

Acute myocardial infarction is very scary, and the onset is very rapid. When it is severe, the heartbeat will stop suddenly, and within 3 seconds to 5 seconds, people will lose consciousness.

In other words, if no one is around at the time of the illness and can only wait to die, the success rate of rescue of myocardial infarction outside the hospital in our country is only about 1%.

　　So why are some patients with acute myocardial infarction lucky enough to survive?

Because 55% of acute myocardial infarctions have precursors, symptoms will appear at least 120 minutes earlier. If you can call 120 when you feel uncomfortable, you will be saved.

The mortality rate in the hospital for acute myocardial infarction has dropped to less than 5%. As long as the hospital can go to the hospital before the heartbeat or respiratory arrest, it is very likely to survive.

4 signs of acute myocardial infarction

Prolonged heart discomfort

　　Generally, the duration of angina pectoris will not exceed 20 minutes. Once the heart is sore and uncomfortable for more than 20 minutes, it may be a myocardial infarction. Call 120 immediately.

If you have symptoms of chest tightness, fatigue, palpitation, and shortness of breath that have never appeared before and gradually worsen, you also need to seek medical attention immediately.

Suddenly sweating heavily

　　The large reduction in cardiac output and the overactivity of the sympathetic nerve will cause a lot of sweating. If you suddenly sweat a lot and you can't find the cause, you must suspect that it is a heart problem.

Unexplained pain

　　Unexplained pain in the front of the chest, heart, teeth, stomach, lower jaw, left shoulder and back, and even left thigh may be a precursor to myocardial infarction.

These pains usually hurt after a while, and they don't hurt after a rest. It is the kind of squeezing pain accompanied by a feeling of swelling, accompanied by a suffocation-like fear of dying.

Chest tightness in the middle of the night was awakened

　　Falling asleep with chest tightness and being awakened is the most dangerous sign. If this happens, it is best to see a doctor the next day, and you must not delay.

Many myocardial infarctions happen at one or two in the middle of the night or early in the morning, and they don't wake up every time.

remind

What should I do if myocardial infarction occurs?

　　■ Lie down immediately

　　■Call an ambulance immediately and only take an ambulance

　　■Don’t eat too much nitroglycerin

　　■Learn cardiopulmonary resuscitation

　　The common symptoms of acute myocardial infarction should not be ignored: such as chest pain, chest tightness, or accompanied by back pain, discomfort in both upper limbs, hyperhidrosis, etc.; atypical symptoms such as toothache, shoulder pain, etc. also need to be vigilant.

People who often stay up late, smoke, or drink, and have symptoms such as sweating and nausea should seek medical attention immediately.

　　Author: Zhou Weitong and Shi Dazhuo, Xiyuan Hospital, China Academy of Chinese Medical Sciences