Electrical storm: Incidence, Prognosis and Therapy.

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Implantable cardioverter-defibrillators (ICDs) reduce mortality in patients at risk of sudden cardiac death.
• ICDs do not alter the underlying myocardial substrate, leaving patients vulnerable to ventricular arrhythmias.
• Electrical storm is defined as recurrent, hemodynamically unstable ventricular tachycardia or fibrillation requiring defibrillator intervention.

Purpose of the Study:

• To review the clinical characteristics of electrical storm.
• To emphasize critical points in the approach and management of electrical storm.
• To focus on transcatheter ablation for refractory cases.

Main Methods:

• Narrative literature review.
• Analysis of clinical characteristics and management strategies for electrical storm.
• Evaluation of studies on transcatheter radiofrequency ablation for refractory ventricular arrhythmias.

Main Results:

• Electrical storm is associated with high short-term and long-term mortality.
• Medical therapy can often interrupt electrical storm.
• Transcatheter radiofrequency ablation is an effective option for refractory cases.

Conclusions:

• Electrical storm is a critical clinical entity with significant mortality.
• Effective management requires a comprehensive approach including medical therapy.
• Transcatheter ablation offers a valuable treatment option for patients with refractory electrical storm.