Aed Automated External Defibrillator

AEDs Do Not Require Use Of Paddles To Shock

Different Types and Uses of a Defibrillator

In the field of medicine, a defibrillator plays a very essential role. When heartbeat becomes dangerously fast and chaotic due to ventricular fibrillation or ventricular tachycardia, defibrillators deliver an electrical shock to the heart to restore a normal heart rhythm. Using it helps prevent cardiac arrest and cardiac death from happening. Patients with cardiomyopathy, arrhythmogenic right ventricular dysplasia, QT syndrome or survivors of sudden cardiac death require defibrillation.

Defibrillation is the ultimate treatment for life-threatening cardiac arrhythmias ventricular fibrillation and pulseless ventricular tachycardia. To deliver a therapeutic jolt of electrical energy to the affected heart, a defibrillator is used. Such treatment restores normal heart rhythms before cardiac arrest occurs. It works by depolarizing a critical mass of the heart muscle, stopping the arrhythmia, and reestablishing normal sinus rhythm.

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Defibrillators have several forms and sizes. Manual defibrillators or defibrillator paddles are what you see in a clinical setting such as the hospital. They can only be used by trained and skilled healthcare professionals. Automatic external defibrillators or AED can be used by lay people with only less training, which makes it perfect for emergency instances where no healthcare professional is present. ICDs or implantable cardioverter defibrillators are implanted in the patient’s chest.

There’re two types of manual defibrillators: external and internal. External units work together with electrocardiogram readers. Through the device, the clinician can diagnose a cardiac condition, decide on the right amount of charge in joules, and send the shock through pads or paddles. However, such process necessitates thorough medical knowledge and experience. Because of that, you can only see these units in hospitals and some ambulances, generally.

Manual internal defibrillators are similar to manual external defibrillators. Only, internal leads which are in direct contact to the heart are used to deliver the shocks. The leads function both ways: either to detect an abnormal rhythm or to deliver the actual shock. Usually, you can find such units in operating rooms, where the chest is likely to be open, or can be easily opened by a surgeon.

For emergency cases where no healthcare professional is around, AEDs are available. Automated external defibrillators are based on computer technology to study the heart rhythm and advise whether a shock is necessary. Unlike manual types, AEDs can be used by lay persons with less training. PADs or public access defibrillators are AEDs that can be found in public places including airports, hotels, and shopping centers. There are also some AEDs which are held by trained personnel who will attend incidents.

Then, there’re implantable cardioverter defibrillators or ICDs. These units are implanted in the patient’s chest, and they may also perform the pacemaking function. ICDs constantly monitor the patient’s heart rhythm, and if needed, also correct an abnormal heart rhythm or arrhythmia according to the device’s programming. In the event of complex arrhythmias, such devices can be combined with a pacemaker.

A defibrillator can come in various forms and uses. However, no matter how different they are in shape and size, they all aim to restore an unhealthy cardiac rhythm into a more normal rhythm. So, whether it’s automatic or manual, internal or external, or used only by medical professionals or lay men, it plays a significant role in saving lives of people.

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