Silent Q fever endocarditis: A case report.

A murmur of aortic regurgitation was discovered in an asymptomatic patient who had suffered from an acute Coxiella Burnetti infection several months b efore hand. Transoesophageal echocardiography, serology and direct immunofl uorescence of the aortic valve confirmed the diagnosis of Q fever endocardi tis. Treatment with Vibramycin and Plaquenil was instituted after aortic va lve replacement. Cardiac complications of a fever should be recognised as they may remain as ymptomatic for long periods of time. Transthoracic and transoesophageal ech ocardiography should be widely used in acute forms of Q fever and systemati c in chronic infections with Coxiella Burnetti.