Changes in ventricular depolarization and repolarization in the clinical follow-up of a patient with Brugada syndrome

Abstract

We present the case of a 55-year-old woman with syncopal episodes and a diagnosis of Brugada syndrome, who spontaneously presented the convex pattern. She received an implantable cardioverter-defibrillator and had a ventricular fibrillation event in the clinical follow-up (106 months). Over this time, 13 electrocardiograms were performed, all of them showing the convex pattern. Moreover, significant variability was observed in wave morphology and electrocardiographic measurements related to depolarization and ventricular repolarization.