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: A 49-year-old man with known history of class III obesity (body mass index 43), hypertension, hyperlipidemia, and insulin dependent diabetes presented to the emergency department with bilateral lower extremity swelling and dyspnea on exertion of two weeks duration. Pertinent vitals included blood pressure 161/74 mmHg, heart rate 99 beats per minute, and saturation [...]