Heart burn: can zapping heart tissue stop deadly rhythms in brugada syndrome?

NCT ID NCT05685134

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a procedure called radiofrequency catheter ablation in 20 people with Brugada syndrome, a heart condition that can cause dangerous heart rhythms. Half received the real ablation, which uses heat to destroy small areas of heart tissue thought to cause the problem, while the other half received a sham procedure. The goal was to see if the ablation could normalize the heart's electrical pattern and prevent life-threatening arrhythmias over one year.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
radiofrequency catheter ablation
What this could lead to
If successful, this procedure could reduce the risk of dangerous heart rhythms and potentially decrease the need for an implantable defibrillator in Brugada syndrome patients.
What could go wrong
This is a very small, early-stage trial with only 20 participants. The procedure involves burning heart tissue and carries risks like bleeding, infection, or heart damage. Results may not apply to all patients.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Instituto do Coração - InCor - HC/FMUSP

    São Paulo, São Paulo, 05403-000, Brazil

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