Primary palliative stenting against obstructive mixed-type total anomalous pulmonary venous connection associated with right atrial isomerism.

This case report presents a low-birth-weight neonate who received primary stent implantation as a long-term palliative intervention for obstructive mixed-type total anomalous pulmonary venous connection (TAPVC) without common pulmonary venous chamber associated with right atrial isomerism, which was considered difficult to surgically repair in the neonatal period. Stent redilation with balloon catheters was repeated for in-stent stenosis from neointimal proliferation, resulting in successful TAPVC repair with cavopulmonary connection at 17 months of age.