Video 9.6: Supracardiac total anomalous pulmonary venous connection (TAPVC): subxiphoid long-axis view. Subxiphoid two-dimensional and color Doppler flow mapping in this patient with supracardiac TAPVC shows flow from both right and left pulmonary veins into a large, superiorly draining vertical vein. Note the obligate right-to-left shunt across the secundum atrial septal defect.

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