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Since the 1960s, electrical heart defibrillators have been routinely used as a treatment for life-threatening cardiac dysrhythmias, especially ventricular fibrillation.

The defibrillators' exact mechanism of action is yet to be determined, but is presumably linked to large-scale electrical depolarization of the heart muscle.

The exact mechanism of defibrillation is not well understood. One theory is that successful defibrillation affects a critical mass of the heart, resulting in insufficient remaining heart muscle to continue the arrhythmia. Recent mathematical models of defibrillation are providing new insight into how cardiac tissue responds to a strong electrical shock."

Source : Wikipedia

Also seeElectroconvulsive therapy (ECT)plugin-autotooltip__plain plugin-autotooltip_bigElectroconvulsive therapy (ECT)

Electroconvulsive therapy (ECT), formerly known as electroshock therapy, is a psychiatric treatment in which strong seizures are electrically induced in patients, After treatment, by an unknown mechanism, it provides relief from some severe mental disorders - especially

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