Congenital post-capillary obstructive lesions (group 2.4)
| Pulmonary vein stenosis |
| Isolated |
| Associated (bronchopulmonary dysplasia, prematurity) |
| Cor triatriatum |
| Obstructed total anomalous pulmonary venous return |
| Mitral/aortic stenosis (including supra/subvalvular) |
| Coarctation of the aorta |