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Download unusual cardiac manifestations in a patient with listeria bacteremia
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1598, either, cat: 58 UNUSUAL CARDIAC MANIFESTATIONS IN A PATIENT WITH LISTERIA BACTEREMIA P.C. Voukydis, K. Daniello, A. Fang, R. Spencer, S. Page, I. Belhau Harvard Medical School, Cambridge, MA, USA A 53 year old physician presented with several days of cough, fever and exhaustion. The workup revealed complete heart block with a junctional escape and QTc prolongation, multifocal pneumonia, a moderate size pulmonary embolus with right ventricular pressure overload and anemia with a Hct of 20. Blood cultures were taken. The patient was treated empirically with vancomycin and levofloxacin, started after the first electrocardiogram was taken. Given the preexisting QT prolongation, the antibiotics were changed to ceftriaxone and azithromycin and then to gentamycin and ampicillin when Listeria grew in the blood cultures. The QTc interval remained prolonged until discharge on the 17th hospital day. Conduction resumed on the 13-th hospital day, without a need for pacing. The CPK reached a peak of 112 and the troponin of 0.49. The echocardiogram showed a normal ejection fraction and no abnormalities other than those arising from the right ventricular pressure overload.Thus myocarditis, diagnosed by cardiac enzyme leaks, QTc prolongation and A-V conduction abnormalities, including completed heart block, can occur in the presence of Listeria bacteremia. Thus Listeria can affect the myocardium in a way similar to what has been observed with other pathogens. The fact that the left ventricular function remained normal throughout the illness period indicates that a typical cardiomyopathy with a decreased ejection fraction is not a necessary finding in cases of bacterial myocarditis.