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Thrombotic thrombocytopenic purpura (TTP), hemolytic uremic syndrome (HUS), and scleroderma renal crisis (SRC) all present with features of thrombotic microangiopathy. Distinguishing among these entities is critical, however, as treatments differ and may be mutually exclusive. We describe the case of a 25-year-old woman with an undefined mixed connective(More)
BACKGROUND AND OBJECTIVES Prior studies indicate that up to 35% of cases of severe aortic stenosis (AS) have paradoxical low flow, low gradient despite preserved left ventricular ejection fraction (LVEF). However, error in left ventricular outflow tract (LVOT) diameter may lead to misclassification. Herein, we determined whether measurement of LVOT diameter(More)
Regadenoson is a widely used and well-tolerated vasodilator agent for pharmacologic stress myocardial perfusing imaging. In patients at higher risk of adverse reactions such as those with end stage renal disease, it can be reversed with early administration of aminophylline. However, little is known about late administration of aminophylline. This case(More)
Paradoxical coronary artery embolism is a rare, but often an underdiagnosed cause of acute myocardial infarction. It should be considered in patient who presents with chest pain and otherwise having a low risk profile for atherosclerosis coronary artery disease. We describe a case of paradoxical coronary artery embolism causing ST segment elevation(More)
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