In patients with atrial<unk>  defects, the circulation of blood flow may become altered due to an opening or hole in wall or septum that separates the<unk>  atrium and<unk>  atrium. Because the blood pressure is higher in the<unk>  atrium than in the<unk>  atrium, there is initially a change in the blood flow from<unk> -to-right, referred to as<unk> -to-right<unk> ing.  There may also be<unk> -to-right<unk> ing in patients with a ventricular<unk>  defect and in those patients in which there is an anomalous connection between the great vessels.
Atrial septal defect left-to-right shunt
Atrial septal defect atmospheric pressure
Atrial septal defect pulmonary hypertension
Atrial septal defect complications
Tricuspid atresia pathophysiology
Atrial septal defect percutaneous closure complications
Atrial septal defect post-surgical complications
Tricuspid atresia medical therapy