Case Report of Platypnea-Orthodeoxia Intrapulmonary Shunt Due to Bilateral Lower Lobe Pulmonary Emboli (South Med J, 2011) [MEDLINE]
Physiology
While Intrapulmonary Shunt May Be a Contributor to Hypoxemia in the Setting of Acute Pulmonary Embolism (Typically with Coexistent Atelectasis), the Major Mechanism of Hypoxemia in Acute Pulmonary Embolism is V/Q Mismatch
Platypnea-orthodeoxia: bilateral lower-lobe pulmonary emboli and review of associated pathophysiology and management. South Med J. 2011 Mar;104(3):215-21. doi: 10.1097/SMJ.0b013e31820bfb54 [MEDLINE]