Defibrillators are devices that restore a normal heartbeat by sending an electric pulse or shock to the heart. They are used to prevent or correct an arrhythmia, a heartbeat that is uneven or that is too slow or too fast. Defibrillators can also restore the heart’s beating if the heart suddenly stops.
Different types of defibrillators work in different ways.
Automated external defibrillators (AEDs), are placed in many public spaces, to save the lives of people experiencing sudden cardiac arrest. Even untrained bystanders can use these devices in an emergency.
Manual external defibrillator – These defibrillators require more experience and training to effectively handle them. Hence, they are only common in hospitals and a few ambulances where capable hands are present. In conjunction with an ECG, the trained provider determines the cardiac rhythm and then manually determines the voltage and timing of the shock—through external paddles—to the patient’s chest.. They can be with a facility of external pacing also.