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Different Types and Uses of a DefibrillatorA defibrillator plays a very important role in the field of medicine. It is used to restore a normal heart rhythm through sending an electrical shock to the heart when heartbeat becomes dangerously fast due to ventricular fibrillation or ventricular tachycardia. Both conditions may be life-threatening, and could lead to cardiac arrest, and even cardiac death. Other conditions that require defibrillation are long QT syndrome, cardiomyopathy, and arrhythmogenic right ventricular dysplasia and survivors of sudden cardiac death.
For life-threatening cardiac arrhythmias ventricular fibrillation and pulseless ventricular tachycardia, defibrillation is the definitive treatment. In this treatment, a defibrillator is used to deliver a therapeutic dose of electrical energy to the affected heart. Before the affected heart suffers from sudden cardiac arrest, defibrillation works to restore normal heart rhythms. It depolarizes a critical mass of the heart muscle, ends the arrhythmia, and reestablishes 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 patients chest.
Therere 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.
Similar to the external version are manual internal defibrillators. However, for these units, the charge is sent by internal leads in direct contact to the heart. When the heart is experiencing an abnormal rhythm, the leads detect it and deliver the required electrical shock. Typically, you can see these units in operating theatres where the chest is likely to be open.
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When there is any cardiac arrest, a device called defibrillator is used to give electrical energy to the heart to release it from the arrest. With the advancement in the technology automatic defibrillator leads are developed and fitted ...
Automated external defibrillators are available for emergency purposes. They are preprogrammed units using computer technology that are designed to analyze the heart rhythm and advise whether a shock is required. Lay persons can operate AEDs with minimal training. They are either PADs or public access defibrillators and can be found in corporate or government offices, hotels, airports and shopping centers. Or, they could be held by skilled personnel who will attend incidents.
Then, therere implantable cardioverter defibrillators or ICDs. These units are implanted in the patients chest, and they may also perform the pacemaking function. ICDs constantly monitor the patients heart rhythm, and if needed, also correct an abnormal heart rhythm or arrhythmia according to the devices 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 its 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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