Macroreentrant atrial tachycardia is a common complication following surgery for congenital heart disease
(CHD), and is often highly symptomatic with potentially significant hamodynamic consequences. Medical management is
often unsuccessful, requiring the use of invasive procedures. Cavotricuspid isthmus dependent flutter is the most common
circuit but atypical circuits also exist, involving sites of surgical intervention or areas of scar related to abnormal hemodynamics.
Ablation can be technically challenging, due to complex anatomy, and difficulty with catheter stability. A thorough
assessment of the patients status and pre-catheter ablation planning is critical to successfully managing these patients.
Keywords: Congenital heart disease, supraventricular tachycardia, catheter ablation.
Rights & PermissionsPrintExport