Native valve endocarditis caused by Corynebacterium striatum without underlying structural heart disease or indwelling cardiovascular medical devices: a case report
Abstract
BACKGROUND: Corynebacterium striatum (C. striatum) is a gram-positive, anaerobic bacillus found both environmentally and in human skin and nasal mucosa flora. It is reportedly the etiologic agent of community-acquired and nosocomial diseases and is significantly associated with bacteremia and medical endovascular devices. This is the rare case of mitral valve native valve endocarditis (NVE) caused by C. striatum occurring in a young adult without underlying structural heart disease or indwelling cardiovascular medical devices successfully treated with multidisciplinary therapy.
CASE PRESENTATION: The patient was a 28-year-old female with no medical history. She was transferred our hospital due to sudden onset of vertigo and vomit. A computed tomography on day 2 revealed the hydrocephalus due to the cerebellar infarction, and she underwent posterior fossa decompression for cerebellar infarction. An angiography on day 8 revealed a left vertebral artery dissection, which was suspected be the etiology. Afterwards, a sudden fever of 39 degrees developed on day 38. She was diagnosed with aspiration pneumonia and treated with ampicillin/sulbactam but was still febrile at the time of transfer for rehabilitation. Treatment continued with levofloxacin, the patient had no fever decline, and she was readmitted to our hospital. Readmission blood cultures (3/3 sets) revealed C. striatum, and an echocardiogram revealed an 11 mm long mitral valve vegetation, leading to NVE diagnosis. On the…
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