defibrillaattoria

A defibrillator is a device designed to treat certain life‑threatening heart rhythms by delivering a controlled electrical shock to the heart. The aim is to depolarize a sufficient portion of the heart muscle and reset the electrical activity, allowing the heart’s natural pacemakers to resume a normal rhythm. Defibrillators are used in emergencies as well as in planned medical settings, and they can be external or implanted.

External defibrillators come in several forms. Automated external defibrillators (AEDs) are portable devices placed in public spaces and workplaces; they analyze the heart rhythm and advise or deliver a shock if needed, with spoken prompts guiding the user. Manual external defibrillators require trained personnel to interpret rhythms and choose the appropriate shocks and energies. There are also wearable defibrillators, or wearable cardioverter-defibrillators (WCDs), which are external vests that monitor the heart and can deliver shocks when indicated, typically for patients at temporary high risk.

Implantable cardioverter-defibrillators (ICDs) are surgically implanted devices that continuously monitor the heart and automatically deliver shocks or anti-tachycardia pacing to treat dangerous arrhythmias, reducing the risk of sudden cardiac death in selected patients with structural heart disease or a history of malignant arrhythmias. In some cases, patients may be prescribed a wearable defibrillator as a bridge to ICD implantation or during high-risk periods.

Defibrillators are most effective when used promptly, in conjunction with cardiopulmonary resuscitation. Public education, device maintenance, and appropriate medical oversight are essential to maximize safety and outcomes.