The emergency treatment of myocardial infarction is as follows: 1. call 120; 2. flat position, lying flat on the bed, the family then observe the situation, the patient should not be nervous, relax emotionally, and then observe the situation and so on 120. in the middle of this found that the patient lost consciousness, called not wake up, may occur cardiac arrest, cardiac arrest is a systemic circulation stop, systemic circulation stop, cerebral circulation stop 10-15 seconds will occur cerebral ischemic coma, 4 – In 4-6 minutes, irreversible brain necrosis and brain death will occur. When the conditions are available, external chest compressions must be implemented immediately, slightly pressed in the middle and lower 1/3 of the sternum, pressed down hard, then relaxed and pressed down hard for one minute, the faster the better, the recommended frequency is 100 times a minute. Quick pressure to assist circulation, maintain circulation, so that you can give the brain blood supply, so that brain death does not occur, so that you can fight for rescue time. 120 came to start the follow-up rescue, or as long as four minutes time will be brain dead.