Case Presentation: Heyde syndrome is a rare multisystem disorder characterized by the triad of aortic stenosis (AS), gastrointestinal bleeding, and acquired von Willebrand syndrome (AVWS). The pathophysiology of AVWS in Heyde syndrome is thought to be due to the increased circulatory shear forces resulting from AS, leading to cleavage of large VWF multimers and loss [...]

Case Presentation: 81 year-old man with a history of atrial fibrillation on Warfarin and bioprosthetic aortic and mitral valves presented with dark urine and shortness of breath. He described progressive shortness of breath and reduced exercise tolerance, unable to walk upstairs to his apartment. His urine had become “the color of eggplant”. On exam, he [...]

Case Presentation: A 71-year-old man with history of coronary artery disease, aortic stenosis status post transcatheter aortic valve replacement (TAVR) two years ago, and ankylosing spondylitis presented to the emergency department for evaluation of 3 days of subjective fevers, worsening generalized weakness requiring one-person assist for ambulation, and tachycardia on his smart watch in the [...]