A Rare Case of Native Mitral Valve Bacillus Cereus Endocarditis Culminating Into a Cerebrovascular Infarction

Bibai Ren, Glenmore Lasam


We report a case of a 56-year-old man who presented initially with a sudden onset of right-sided facial droop and weakness, aphasia, and confusion with no associated fever, chills, syncope, fatigue, weight loss, night sweats, nausea, vomiting, diarrhea, odontalgia, palpitations, cough, or dyspnea. Code stroke was called and the patient received tissue plasminogen activator (tPA) with subsequent resolution of his symptoms. Cranial magnetic resonance imaging showed left frontal punctate cortical restricted diffusion consistent with subacute to acute infarction. Transesophageal echocardiogram showed a severely thickened anterior mitral valve leaflet with a shaggy echodensity consistent with a vegetation. Blood cultures grew Bacillus cereus sensitive to clindamycin, trimethoprim sulfamethoxazole, and vancomycin. He was initially treated with ampicillin, clindamycin, and vancomycin and was eventually maintained solely on vancomycin. He had complete return of his neurological function and was discharged on intravenous antibiotic to complete a 6-week course.

Cardiol Res. 2018;9(3):173-175
doi: https://doi.org/10.14740/cr672w


Bacillus cereus endocarditis; Cerebrovascular infarction; Native mitral valve vegetation; Prolonged antibiotic therapy; Valve replacement

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