Case Presentation: An 89-year-old woman with hypertension, dementia, and vertebral fracture was admitted to another hospital because of hip pain after fall. Since she was also found to have oxygen desaturation, the patient was referred to our hospital for further workup. She denied dyspnea, cough, sputum, chest pain, palpitation, episode of aspiration, or fever. On [...]

Case Presentation: 75 year old with non-alcoholic cirrhosis, heart failure preserved ejection fraction (HFpEF) and recurrent abdominal abscesses presented with platypnea orthodeoxia syndrome (POS) following diuresis. His oxygen saturation was 100% when lying flat and 78-80% when upright. Trans-esophageal echocardiogram confirmed a sinus venosus defect (SVD) with partial anomalous pulmonary venous return (PAPVR) of right [...]

Case Presentation: An 80-year-old Japanese woman presented to our hospital with dyspnea in the sitting and standing positions. Two months prior to her admission, she had presented to another hospital with multiple vertebral compression fractures. After being discharged from the hospital, she developed dyspnea in the sitting and standing positions. She also reported an episode [...]

Case Presentation: A 75 yo non-ambulatory woman with history of OSA, CVA, Atrial Fibrillation presented for urologic surgery, however was found to be dyspneic and hypoxic to spO2 84% on room air. These symptoms appeared to resolve when lying down, yet instantly returned when upright and often required non-rebreather (NRB) mask to stabilize. On presentation, [...]