Heart "stop" feeling

Introduction Cardiac arrest refers to the sudden termination of the cardiac ejection function, the aortic pulsation and heart sound disappear, and important organs such as severe brain ischemia and hypoxia lead to the termination of life. This unexpected sudden death is medically known as sudden death. The most common cause of cardiac arrest is ventricular fibrillation. If the patient is called without a response, the patient will be in a coma if there is no response to the pressure and the armpit. Then pay attention to observe the patient's chest and abdomen with or without undulating breathing. If there is no pulsation of the carotid artery and the femoral artery, the heartbeat can not hear the heartbeat, and the patient can be judged to have a cardiac arrest.

Cause

The most common cause of cardiac arrest is ventricular fibrillation. If the patient is called without a response, the patient will be in a coma if there is no response to the pressure and the armpit. Then pay attention to observe the patient's chest and abdomen with or without undulating breathing. If there is no pulsation of the carotid artery and the femoral artery, the heartbeat can not hear the heartbeat, and the patient can be judged to have a cardiac arrest.

an examination

Related inspection

Dynamic electrocardiogram (Holter monitoring)

1. Loss of consciousness.

2. The carotid artery and femoral artery beat and the heart sound disappeared.

3. Sighing breath, if you can not urgently restore blood circulation, and soon stop breathing.

4. The pupils are scattered and the light reflection is weakened and disappeared.

5. ECG performance: 1 ventricular fibrillation or flutter, accounting for about 91%; 2 ECG-mechanical separation, wide and deformed, low amplitude QRS, frequency 20-30 times / min, no myocardial mechanical contraction; 3 The ventricle is stationary, showing a straight line without electric waves, or only atrial waves. Ventricular fibrillation remained unresolved for more than 4 minutes, almost all of which turned to ventricular quiescence.

Differential diagnosis

The diagnosis should be differentiated from the following symptoms:

1, cardiac arrest

Cardiac arrest is the presence of bioelectric activity in the myocardium, without effective mechanical function, intermittently appearing a slow, very weak and incomplete "contraction" condition. There are intermittently wide, deformed, low amplitude QRS waves on the electrocardiogram. Groups, the frequency is more than 20 to 30 times per minute. At this time, the myocardium has no contraction and blood discharge function, and the heart sound is not heard when the heart is auscultated, and the peripheral arteries are not beaten. The pathological and physiological mechanism leading to cardiac arrest, the most common is ventricular fibrillation, which is a kind of arrhythmia, accounting for about 20% of all coronary heart disease, and the mortality rate is high.

2, cardiac arrest

Cardiac arrest refers to the sudden termination of the cardiac ejection function, the aortic pulsation and heart sound disappear, and important organs such as severe brain ischemia and hypoxia lead to the termination of life. This unexpected sudden death is medically known as sudden death.

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