ELECTRIC DEFIBRILLATIONS Meaning and
Definition
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Electric defibrillation is a medical procedure that involves the delivery of a controlled electric shock to the heart to restore normal heart rhythm in cases of life-threatening cardiac arrhythmias, particularly ventricular fibrillation and pulseless ventricular tachycardia. This emergency intervention is crucial in situations where the heart has stopped beating effectively, leading to a loss of blood circulation and potentially fatal consequences.
During electric defibrillation, a device called a defibrillator is used to generate an electrical current that is delivered to the heart through adhesive electrode pads or paddles placed on the patient's chest. The electrical shock momentarily depolarizes a critical mass of the heart muscle cells, which allows the heart's natural pacemaker to regain control and restore a coordinated heart rhythm. This is often accompanied by the discharge of a large surge of energy, resulting in the characteristic "shock" associated with defibrillation.
Electric defibrillation is usually performed by trained medical professionals, including emergency medical services (EMS) personnel, nurses, and doctors. It is typically carried out in a hospital setting, but defibrillators are also commonly found in public places and are used by bystanders or first responders to intervene in cases of sudden cardiac arrest until professional medical assistance arrives.
The successful use of electric defibrillation is dependent on early intervention, as the chances of restoring normal heart rhythm decrease significantly with time. Thus, it plays a critical role in increasing the survival rates of individuals experiencing life-threatening cardiac arrhythmias.
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Etymology of ELECTRIC DEFIBRILLATIONS
The word "defibrillation" is derived from the Latin prefix "de-" meaning "undo" or "remove", and the Latin word "fibrilla", meaning "small fiber". It was first used in the medical field in the early 20th century to describe the process of restoring normal heartbeat rhythms by applying an electric shock to the heart, thereby disrupting abnormal electrical activity that causes fibrillation or irregular heart rhythms.
The term "electric" simply refers to the use of electricity in the process, indicating that the shock delivered is generated by an electric source, such as a defibrillator machine. So, "electric defibrillation" refers to the specific method of using electric shocks to restore proper heart rhythms.
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