Can people with cardiac arrest still be saved?

It is generally said that "cardiac arrest" marks a person's death. Some foreign scholars think: "It is impossible to fully recover from cardiac arrest in 6 minutes, and there is no need to rescue patients after cardiac arrest 10 minutes". However, there are reports at home and abroad that the rescue of cardiac arrest was successful for more than 10 minutes. There have also been reports of successful rescue of cardiac arrest 18 minutes and 25 seconds in China, which broke through the traditional concept and created a miracle in the history of medicine. Cardiac arrest at the end of severe organic heart disease, difficult to rescue; The sudden cardiac arrest caused by electric shock, drowning, trauma, surgery and anesthesia is very likely to be saved as long as it is rescued in time. During cardiac arrest, the patient suddenly loses consciousness, the carotid pulse disappears, the pulse cannot be felt, and the heart sounds cannot be heard. Later, the pupil will enlarge, the reflex will disappear, and then the breathing will stop-the ECG will "pull a straight line" or have a slight tremor waveform. If you open your chest and do cardiac compression at this time, you will see that the heart is purple, with low tension, and it is in a state of complete rest or slight tremor. How to rescue patients with cardiac arrest at the scene? The rescue of cardiac arrest is a very tense battle, time is life, and fast and accurate is the key to success or failure. First of all, we must race against time to carry out cardiac resuscitation. At this time, we will see the doctor give the patient mouth-to-mouth resuscitation, while hitting the precordial area with his fist for three or five times. This kind of thumping can often make the heart beat again, and the heart sound and pulse appear again. If you are not active, you should do chest compressions in time, and indirectly press the left and right ventricles by pressing the lower end of the sternum, so that blood can enter the aorta and pulmonary artery, establish large and small circulation, and create conditions for the recovery of cardiac autonomic rhythm. The patient must lie on his back on the ground or on a hard bed, and press his hands on the lower end of the sternum for 3-5 cm each time and 60-80 times per minute to avoid violence and rib fracture. At the same time of chest compressions, cardiac resuscitation drugs such as epinephrine, isoproterenol and atropine should be injected intravenously, preferably in combination. It used to be thought that intracardiac injection was necessary to achieve the effect, but now it is thought that intravenous injection can achieve the same effect and avoid heart wall damage. When external cardiac compression still doesn't work, doctors should decisively open the chest on the spot for direct intrathoracic cardiac compression, which can often save the patient's life. Conditional electric shock defibrillation and manual pacing can also be used to make the heart beat again. Once cardiac resuscitation and respiratory resuscitation are successful, they should be sent to the hospital immediately, continue to carry out complicated and intense rescue, correct brain edema and acidosis, and finally save the patient.