An Unusual Cause of Hypoxia: Ventricular Septal Defect, Pulmonary Artery Atresia, and Major Aortopulmonary Collaterals Diagnosed in the Adult Cardiac Catheterization Lab

<div>(a) Collaterals (red arrow) from the thoracic aorta. (b) After cannulation of this MAPCA, the right upper pulmonary artery branch was seen (yellow arrow) and had normal systolic pressure.</div>

Case Reports in Cardiology

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Figure 4

Figure 4: An Unusual Cause of Hypoxia: Ventricular Septal Defect, Pulmonary Artery Atresia, and Major Aortopulmonary Collaterals Diagnosed in the Adult Cardiac Catheterization Lab 

Figure 4 | An Unusual Cause of Hypoxia: Ventricular Septal Defect, Pulmonary Artery Atresia, and Major Aortopulmonary Collaterals Diagnosed in the Adult Cardiac Catheterization Lab 