Multi-modality imaging approach in a challenging case of surgically corrected partial anomalous pulmonary venous return and atrial tachycardia treated with radiofrequency ablation.
Pulmonary anomalous venous return (PAPVR) is defined as a congenital anomaly in which at least one but not all of the pulmonary veins abnormally drain into a systemic vein or directly into the right atrium. Signs and symptoms related to this condition are due to the hemodynamic abnormalities secondary to left-to-right shunt and the possible presence of other associated cardiac anomalies (e.g., sinus venous atrial septal defect).