70 Incidence of arrhythmias in Ebstein ’s anomaly in a single centre

Introduction: Ebstein ’s anomaly (EA) accounts for<1% of all congenital heart disease. Pre-excitation is more frequently associated with EA than with other congenital heart defects. Right atrial dilatation due to tricuspid regurgitation or associated atrial septal defect (ASD) produces a substrate for cavotricuspid isthmus dependent atrial flutter (CTI-AFL). Furthermore, post -surgical repair or replacement of the tricuspid valve predisposes to intra-atrial re-entry tachycardias and CTI-AFL.
Source: Europace - Category: Cardiology Source Type: research