What is the cause of the continuous murmur in this patient with a fever? Fever and a new heart murmur in a young patient appropriately raise a concern of infective endocarditis. Initial diagnostic workup includes blood cultures and transthoracic echocardiography,1 which may show a regurgitant jet across an affected heart valve. However, jet appearance and the association with patient history and physical examination findings may suggest alternative diagnoses.
Li S, Bhatt AS, O’Gara PT. A Man in His 30s With a New Continuous Murmur and Fever. JAMA Cardiol. 2020;5(8):e203255. doi:10.1001/jamacardio.2020.3255
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