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Revista argentina de microbiología

Print version ISSN 0325-7541On-line version ISSN 1851-7617


TUTZER, Silvia et al. Electronic cardiovascular device-associated to infective endocarditis caused by Mycobacterium mageritense. Rev. argent. microbiol. [online]. 2019, vol.51, n.1, pp.22-25. ISSN 0325-7541.

Rapidly growing non-tuberculosis mycobacteria are a rare cause of bacterial endocarditis. During the last decades, there has been an increase in infections due to rapidly growing mycobacteria, mainly after trauma and post-surgical procedures, both localized and disseminated, as well as nosocomial outbreaks due to contamination of medical equipment. Routine acid-fast staining for blood culture bottles is not always performed; however, the microbiologist should be aware of potential RGM infections especially when gram positive bacilli are observed. We describe a case of endocarditis caused by Mycobacterium mageritense in a patient with an autologous pericardial patch and a pressure catheter in the left auricle. The bacterial species was identified as Mycobacterium mageritense by mass spectrometry (MALDI-TOF MS), score 2.3, and confirmed by 16S rRNA analysis with 99.8 and 100% agreement, respectively.

Keywords : Infective endocarditis; Electronic cardiovascular device; Mycobacterium mageritense; Mass spectrometry.

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