Atrial Septal Defect Associated With Right Bundle Branch Block Masking Brugada Syndrome

Abstract

A type 1 Brugada electrocardiogram pattern may be masked by typical right bundle branch block aspect. We present 2 cases (male patients, aged 18 and 22 years) of associated ostium secundum atrial septal defect with a right bundle branch block aspect and symptomatic confirmed Brugada syndrome. Both patients underwent cardiac defibrillator implantation. (Level of Difficulty: Advanced.)

Keywords

• atrial septal defect
• Brugada syndrome
• electrocardiogram
• interatrial communication
• right bundle branch block
• sudden cardiac death