Case Presentation: An 86-year-old man with a history of stroke on apixaban and metastatic renal cell carcinoma on ipilimumab/nivolumab presented to our emergency room with lightheadedness. Transthoracic echocardiogram (TTE) for stroke evaluation performed 3 years prior revealed a patent foramen ovale (PFO). Vital signs were significant for hypoxemia to 85% on room air requiring high-flow [...]

Case Presentation: An 82 year-old presented with acute onset hypoxia after a laparoscopic subtotal gastrectomy for stage I gastric adenocarcinoma. Upon extubation, she had positional episodes of desaturation to 79% when sitting up, with other vitals signs normal and no dyspnea. Her oxygen saturation was 91% when supine. Her lungs were clear to auscultation bilaterally. [...]

Case Presentation: INTRODUCTION:Hepatopulmonary syndrome (HPS) is a complication seen in 4-7% of patients with chronic liver disease. The definitive treatment for HPS is liver transplantation (LT). A high index of suspicion is required to diagnose HPS. We present a perplexing case of HPS presenting with just hypoxia and orthodeoxia in the setting of liver disease.CASE [...]

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: We describe a case of a 76 year old male with history of advanced centrilobular emphysema who developed platypnea and orthodeoxia. He was diagnosed with severe obstructive disease since 4 years and was on home oxygen. He had multiple admissions for dyspnea with treatment including supplemental oxygen, bronchodilators, steroids and antibiotics. His oxygen [...]

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, [...]