“Hemodynamic vice” of the right-sided ascending vertical vein in the setting of supracardiac total anomalous pulmonary venous connection in a neonate: Anatomic-embryological correlation

Echocardiography showed a prominent right-sided superior vein cava (SVC). The pulmonary veins (left upper, lower, and right lower) were draining into the common chamber, and the vertical vein was ascending on the right side coursing behind the right pulmonary artery (RPA) causing a “Hemodynamic Vice” [Figure 1]. The vertical vein appeared to be draining into high SVC. To delineate the anatomy better, a computed tomography (CT) scan was performed. This showed the vertical vein ascending on the right side, going behind the RPA, and the right upper pulmonary vein was joining the ascending vein. The vertical vein then coursed behind the SVC and eventually drained into the brachiocephalic vein [Figures 2, 3 and Video 1].