Case Report (n=1)
Discusses the differential diagnosis and treatment of wide QRS tachycardia in a patient with Ebstein anomaly.
May support ablation for wide QRS tachycardia in Ebstein anomaly; leaves open generalizability beyond this single case.
Ebstein anomaly (EA) is a congenital heart defect characterized by the apical displacement and insertion of the septal and posterior tricuspid leaflets inside the right ventricle, which may cause different degrees of tricuspid regurgitation. The anterior leaflet usually is elongated, tethered, and fenestrated, but mobile.1,2 This tricuspid malformation is associated with right atrium and ventricle changes resulting in important electrophysiological modifications, such as prolonged intra-atrial activation, right bundle branch block, and occurrence of multiple accessory pathways.
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Melo et al. (2021) conducted a case report in Ebstein anomaly with wide QRS tachycardia (n=1). Electrophysiological study and catheter ablation was evaluated on Recurrence of arrhythmias or symptoms.
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