Diagnostic Pitfall of Platypnea-Orthodeoxia Syndrome Caused by Atrial Septal Defect after Right Pneumonectomy

<div>Transesophageal contrast echocardiogram: midesophageal aortic valve short axis view of atrial septal defect; superior vena cava injection in the upright position with a small right-left shunt. RA: right atrium, LA: left atrium, Ao: aorta.</div>

Case Reports in Critical Care

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Figure 3: Diagnostic Pitfall of Platypnea-Orthodeoxia Syndrome Caused by Atrial Septal Defect after Right Pneumonectomy 