Posture Dependent Hypoxia Following Lobectomy: The Achilles Tendon of the Lung Surgeon?

Platypnoea-Orthodeoxia Syndrome after lobectomy is a rare cause of post-operative dyspnea/hypoxia. It is the result of right-to-left shunt via an interatrial communication. Mediastinal relocation, stretching of the atrial septum and aortic root dilatation are among the functional elements necessary for the Platypnoea-Orthodeoxia Syndrome manifestation.