In daily life, large public **** place often configured with AED (automated external defibrillator), can be used by non-professionals for the rescue of patients with cardiac arrest medical equipment. So do you know what are the indications for defibrillators?
1. Ventricular fibrillation is an absolute indication for electrical cardioversion.
2, chronic atrial fibrillation (history of atrial fibrillation within 1~2 years), persistent atrial flutter.
3, paroxysmal supraventricular tachycardia, the conventional treatment is ineffective and accompanied by obvious hemodynamic disorders or preexcitation syndrome complicating supraventricular tachycardia and difficult to use drugs.
4. Atrial flutter with 1:1 conduction.
Second, what is the working principle of defibrillator
When the patient has a serious tachyarrhythmia, such as atrial flutter, atrial fibrillation, supraventricular or ventricular tachycardia, often resulting in varying degrees of hemodynamic disorders. Especially when the patient has ventricular fibrillation, due to the ventricle has no overall contraction ability, the heart ejection and blood circulation termination, if not timely rescue, often cause the patient due to the lack of oxygen in the brain for too long time and death. At this time, defibrillator can save a person from a life-threatening situation, so what is the working principle of defibrillator?
Using a defibrillator to control a certain amount of energy current through the heart can eliminate certain arrhythmias, which can restore the heart rhythm to normal, thus enabling patients with the above heart diseases to be rescued and treated.