<unk>  is a rare cardiovascular disorder. It is recognized as being the<unk>  of one or more of the four pulmonary<unk> s that return blood from the lungs to the left atrium of the heart. In congenital cases, it is associated with poor prognosis and high mortality rate. In some people,<unk>  occurs after pulmonary<unk>  ablation for the treatment of atrial fibrillation. Some recent research has indicated that it may be genetically linked in congenital cases.
Pulmonary vein stenosis
Pulmonary valve stenosis
Pulmonic stenosis
Tricuspid valve stenosis
Pulmonary artery sling
Overriding aorta
Annuloaortic ectasia
Tricuspid atresia