Cardiac arrest refers to the fact that the myocardium still has bioelectric activity without effective mechanical function, intermittent slow, very weak and incomplete “contraction”, and intermittent wide, deformed, low-amplitude QRS waves on the electrocardiogram groups, the frequency is mostly below 20 to 30 times per minute. At this time, the myocardium has no systolic and blood drainage function, no heart sounds can be heard during auscultation of the heart, and no pulsation of the peripheral arteries can be palpated.
Cardiac arrest refers to the pathological and physiological mechanism of cardiac arrest caused by the sudden termination of cardiac ejection function.
The clinical manifestations of cardiac arrest are:
1.The heart sounds disappear, the pulse cannot be felt, and the blood pressure cannot be measured;
2. Sudden loss of consciousness, twitching of the limbs, cardiac arrest for 5-10 seconds, the patient has syncope, cardiac arrest for 15-20 seconds, sudden loss of consciousness, generalized convulsions, and the patient is in a coma;
3. Intermittent breathing, sigh-like, and then stopped, mostly 20 to 30 seconds after arrest;
4.Coma in cardiac arrest patients, which occurs 30 seconds after cardiac arrest;
5. Mydriasis in cardiac arrest patients mostly occurs 30 to 60 seconds after cardiac arrest. After 1 to 2 minutes, the pupil is fixed, and then various shades of reflex disappear.
Ventricular quiescence and cardiac arrest (or global asystole) need to be differentiated, with the following differences:
1. Ventricular quiescence occurs on the basis of high or third-degree atrioventricular block, while cardiac arrest occurs in various fatal arrhythmias, various organic heart diseases, and the terminal and primary stages of various diseases. Sexual or secondary cardiac arrest, ventricular static, etc.
2. There are atrial P waves (or F wave) without atrioventricular junction area and ventricular QRS wave on the ventricular static ECG, and the cardiac arrest ECG is an isoelectric wire that lasts for more than 2.7s (a straight line).
3. At rest of the ventricle, there is atrial contraction without ventricular contraction. In cardiac arrest, the atrium and ventricle are not contracted. However, the common feature of both ventricular rest and cardiac arrest is that there is no electrical activity in the ventricle (without any QRS wave), and no mechanical contraction of the ventricle, which leads to the termination of blood circulation, so the two are compared. They are the most serious of the two types of asystole, and it has been argued that both are collectively referred to as cardiac arrest.
Cardiac arrest patients should eat appropriate diet, work and rest moderately, and feel comfortable; actively treat the primary disease and correct electrolyte imbalance, and use relevant drugs rationally.
Plus1Health has an ECG recorder, which supports single-lead, 3-lead, 6-lead, and 12-lead. It can monitor ECG, and can issue ECG in time, and give the doctor a reference for diagnosis and analysis.
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