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 Case Reports |
| A Case of Native Valve Infective Endocarditis Caused by Bacillus cereus |
| Dong Hyun Oh1, Min Hyung Kim1, Yong Chan Kim1, Je Eun Song1, Jin Young Ahn1, Sang Hoon Han1, 2, Jun Yong Choi1, 2, Chang Oh Kim1, 2, Hyuk-Jae Chang1, 3, Dongeun Yong4, Young Goo Song1, 2, Kyungwon Lee4, and June Myung Kim1, 2 |
| Department of 1Internal Medicine, 2AIDS Research Institute, 3Cardiovascular Hospital, 4Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea |
Vol.44 Num.4 (p310~314)
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Bacillus cereus is a ubiquitous organism that often contaminates microbiological cultures but rarely causes serious infections in humans. It is the causative organism of infective endocarditis (IE), a disease typically associated with intravenous (IV) drug abusers. Thus, almost all reported cases have involved the tricuspid valve. We report a case of native mitral valve (MV) IE caused by B. cereus in a 54 year-oldman with moderate MV regurgitation but no apparent history of IV drug use. He presented with fever and dyspnea on exertion, symptoms which had been ongoing for 2 months. B. cereus infection was determined by blood culture examination. A transthoracic echocardiography revealed that mobile vegetations had attached to the MV. He was treated with IV antibiotics for a total of 6 weeks and received MV replacement surgery. He has maintained a good clinical recovery without complications since discharge. |
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Keywords : Infective endocarditis, Bacillus cereus , Native valve, Mitral valve, Nonintravenous drug abuser |
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