Predictors of Acute Failure Ablation of Intra‐atrial Re‐entrant Tachycardia in Patients With Congenital Heart Disease: Cardiac Disease, Atypical Flutter, and Previous Atrial Fibrillation

Background Intra‐atrial re‐entrant tachycardia ( IART ) in patients with congenital heart disease ( CHD ) increases morbidity and mortality. Radiofrequency catheter ablation has evolved as the first‐line treatment. The aim of this study was to analyze the acute success and to identify predictors of failed IART radiofrequency catheter ablation in CHD . Methods and Results The observational study included all consecutive patients with CHD who...