Cardiac Arrest and Cardiopulmonary Resuscitation

Cardiac arrest refers to the sudden stop of the heart caused by various reasons, the effective pumping function disappears, causing severe hypoxia and ischemia throughout the body. The clinical manifestations are that the aorta pulsations and heart sounds disappear; followed by loss of consciousness, respiratory arrest, dilated pupils, and death if not rescued in time. It is generally believed that dizziness or syncope can occur within 5 to 10 seconds of cardiac arrest, syncope and convulsions can occur after 15 seconds, and coma can occur after 20 seconds; if the cardiac arrest is longer than 5 minutes, it can often cause serious brain damage or death, even if the heartbeat is recurrent. There are different levels of sequelae. Therefore, cardiac arrest is the most critical emergency in clinical practice, and we must fight against the clock to actively rescue it.

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