Persistent left superior vena cava with retrograde flow and absent coronary sinus in a child with ventricular septal defect and patent ductus arteriosus.

Coronary sinus (CS) defects are rare congenital cardiac anomalies that occur in isolation or with other congenital heart diseases. Persistent left superior vena cava (LSVC) is a relatively common entity that usually drains into the CS, is of no hemodynamic consequence, and is easily diagnosed on echocardiography by a dilated CS and an antegrade flow toward the heart. However, a combination of LSVC and CS defect may reverse its flow direction and CS dilation may be absent.

Left superior vena cava or left vertical vein in supracardiac total anomalous pulmonary venous drainage - Does it make a difference?

What do we call a vascular structure that is in the left pneumopericardial space, drains systemic venous blood, and the total pulmonary venous return, into the right atrium, through a dilated coronary sinus (CS)? Can we preserve the CS drainage while correcting the total anomalous pulmonary venous connection?

The meandering intrapulmonary total anomalous pulmonary venous channel (MITAPVC)-old wine in new bottle or a new variant?

Background: Total anomalous pulmonary venous connection (TAPVC), with an intrapulmonary segment (IPV), a meandering abnormally located confluence and obligatory drainage of one lung into the other before entering the systemic circulation, is a rare anomaly and we term it as the meandering intrapulmonary TAPVC (MITAPVC).

Material And Methods: We report five patients with an unusual variation of the TAPVC channel. A review of literature was done to identify this association of TAPVC with an intrapulmonary vein and absence of a confluence in its usual location.