orthodeoxia

Etiology

• hepatopulmonary syndrome
• platypnea-orthodeoxia syndrome
  • patent foramen ovale or atrial septal defect
    • may associated with inferior wall & right ventricular myocardial infarction with tricuspid regurgitation

Clinical manifestations

• oxygen desaturation in the upright position
• associated with platypnea

Radiology

• echocardiography with agitated saline

More general terms

• sign/symptom

Additional terms

• arterial blood gas (ABG)
• platypnea
• platypnea-orthodeoxia syndrome
• pulse oximetry