Be wary of sudden death caused by excessive exercise

　　Cardiovascular injury accounted for 74% of deaths, while other non-cardiac related causes accounted for 22%, including hyperthermia, rhabdomyolysis and continuous asthma. In track and field and cross-country running, there were 17 fatalities, most of them middle school students. They also studied the causes of sudden death in 158 athletes in the United States between 1985 and 1995, which were also included in the above-mentioned study results: 134 cases had cardiovascular defects, 90% of which male , 18% of fatal accidents occur among track and field athletes.

　　Experts say that long-distance runners need a series of medical supervision before running, such as diet, daily life, weight, exercise volume and intensity, etc., to ensure safety during exercise. The general public should pay more attention to medical supervision when participating in marathon sports. For athletes, if you don’t exercise much, don’t sign up for such strenuous exercise. If you've already signed up, it's best to move forward in the competition Hospital Get a physical exam. In addition, if you feel unwell while running, stop immediately and don’t hold on. He also emphasized that organizers of marathon events also need to conduct physical examinations and exercise history inquiries of participants before the start of the event, and advise those who are not suitable to participate not to participate.

　　Sudden death rescue is calculated in seconds

　　According to experts, the symptoms of sudden death are sudden coma, unconsciousness, disappearance of pulse, cessation of breathing, inability to hear heartbeat, dilated pupils, and pale complexion. At normal temperature, if the heart stops beating for more than 3-5 seconds, the patient will feel dizzy, syncope will occur after 10-20 seconds, convulsions will occur after 40 seconds, and the patient may have dilated pupils. After 60 seconds, the patient will stop breathing and become incontinent. After 4 minutes, irreversible damage to brain cells will begin, and brain cells may die after 10 minutes. Therefore, the key to rescuing patients who die suddenly is speed. According to some statistics, if on-site cardiopulmonary resuscitation is performed within 4 minutes, and further cardiopulmonary and cerebral resuscitation is performed within 8 minutes, 94% of patients can be successfully resuscitated and survive for a long time. Others use 12 minutes as the critical point, that is, if cardiopulmonary resuscitation is not performed within 12 minutes, the possibility of successful rescue is almost zero. It is not an exaggeration to say that time is life here.

　　When a person suddenly experiences non-external causes of fainting, loss of consciousness, or convulsions and convulsions, and there is no heartbeat or breathing, the first thing to realize is that it may be sudden cardiac death. If the patient complains of chest pain or scratches the chest with his hands and feels pain before the attack, this disease should be considered. If you know that the patient has had coronary heart disease , the occurrence of such symptoms should be considered as sudden cardiac death.

　　Experts remind patients that sudden death is predictable. Generally before the onset of the disease, people will feel short-term angina pectoris, or feel choked in the throat and difficulty in swallowing. Some people will be accompanied by sweating and chest tightness for 3-5 minutes. The most common signs are weakness, dizziness, and chest tightness. However, when these conditions occur in middle-aged and young people, if they do not know that they have cardiovascular disease, disease , usually unconsciously. Most young people think that they have good physical strength, and they don't care even if their bodies are overdrawn. Occasionally, if they feel unwell, they just treat it as tiredness and rest, but they don't know that this may be a precursor to illness.

　　How to help someone who has died suddenly

　　Don’t understand or are not familiar with the scene first aid What should people who are not trained in CPR techniques do if someone dies suddenly? First of all, don't panic, you should be calm, figure out what happened as soon as possible, and then shout for help so that people around you can rush over as soon as possible. Among them, people who know cardiopulmonary resuscitation can perform first aid. In addition to mouth-to-mouth artificial respiration during first aid, do not pretend to understand and rashly perform cardiopulmonary resuscitation operations such as artificial chest heart compression. This may easily cause the patient to suffer rib fractures, severe internal bleeding or other complications. In addition, if the patient has dentures or denture trays, they must be removed. While rescuing, others can quickly call an ambulance. When calling, be sure to state the patient's general location, street name, and the caller's own name and phone number. After making the call, someone should be sent to the intersection to wait for the arrival of the ambulance, so as to guide the ambulance crew to the scene as soon as possible.