Heart ‘Rewiring’ Shows Rapid Effect on Dangerous Arrhythmia

For individuals with Brugada syndrome, a rare heart condition that can cause sudden death in otherwise healthy people, the primary danger is a chaotic rhythm called ventricular fibrillation. While implantable defibrillators (ICDs) can prevent a fatal outcome, they do not stop the frightening episodes from occurring.

A new meta-analysis, synthesising data from two randomised controlled trials involving 90 patients, offers fresh hope. The study investigated a procedure known as epicardial ablation, which targets the specific faulty tissue on the heart's outer surface responsible for the dangerous electrical signals.

The results were striking. Researchers found that epicardial ablation therapy was linked to a significant reduction in the recurrence of ventricular fibrillation. What's more, the benefit appeared remarkably quickly. The analysis calculated that the ‘time to benefit’—the period needed to prevent one episode per 100 patients—was just 0.2 months. These findings suggest that for carefully selected patients, this procedure offers a more favourable outcome than relying solely on an ICD for protection.