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An automated external defibrillator or automatic electronic defibrillator (AED) is a portable electronic device that automatically diagnoses the life-threatening cardiac arrhythmias of ventricular fibrillation (VF) and pulseless ventricular tachycardia, [1] and is able to treat them through defibrillation, the application of electricity which stops the arrhythmia, allowing the heart to re ...
About 90% of the 350,000 cardiac arrests that happen outside a hospital each year are fatal. However, a simple medical device, an automated external defibrillator (AED), can save lives. According ...
A defibrillation device that is often available outside of medical centers is the automated external defibrillator (AED), [8] a portable machine that can be used with no previous training. That is possible because the machine produces pre-recorded voice instructions that guide the user.
AEDs are designed for use by laypersons and provide simple audio and visual instructions for the operator to follow. Electrode pads, placed by an operator on the chest of the patient, are for monitoring and defibrillation. [36] In contrast to the ICD and WCD, an AED needs the immediate activity of a bystander in order to prevent the SCD.
Congestive heart failure patients that were implanted with an ICD had an all-cause death risk 23% lower than placebo and an absolute decrease in mortality of 7.2 percentage points after five years in the overall population. 1 Reporting in 1999, the Antiarrhythmics Versus Implantable Defibrillators (AVID) trial consisted of 1,016 patients, and ...
Defibrillators can deliver energy as monophasic or biphasic waveforms, although biphasic defibrillators are now the most common. [ 101 ] [ 102 ] Prior studies suggest that biphasic shock is more likely to produce successful defibrillation after a single shock, however rate of survival is comparable between the methods.
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