In this episode, we review atrial septal defects (ASDs), including their types, imaging, and management. What is the difference between secundum defect, primum defect, sinus venosus defect, and coronary sinus defect? Which is the only ASD defect out of the four that can be percutaneously closed (in addition to surgically closed)? Which ASD type is accompanied by anomalous pulmonary venous return? What are the physiologic consequences of left-to-right shunting in ASDs, and how can these lead to pulmonary hypertension and RV failure? What is Holt-Oram syndrome? What are the criteria for ASD closure? Tune in for answers to these questions.

Difficulty Level: Advanced

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