Nerve surgery may tame deadly heart rhythms in chagas patients

NCT ID NCT04239144

First seen Feb 18, 2026 · Last updated May 10, 2026 · Updated 11 times

Summary

This study tested a surgery that cuts certain heart nerves to control life-threatening fast heartbeats in people with Chagas heart disease. 45 patients who already have an implanted defibrillator and had at least four shocks in the past six months were randomly assigned to get the nerve surgery, standard catheter ablation, or just medication. The goal was to see if the surgery could reduce the number of dangerous rhythm episodes and improve quality of life.

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Contacts and locations

Locations

  • Heart Institute of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo

    São Paulo, São Paulo, 05403-900, Brazil

Conditions

Explore the condition pages connected to this study.