Electronic Cardiovascular Device-associated to Infective Endocarditis Caused by Mycobacterium Mageritense

Journal: Advances in Medicine and Engineering Interdisciplinary Research DOI: 10.32629/ameir.v2i4.2834

Silvia Tützer1, Tamara Posse1, Roxana Paul2, Johana Monteserin2, Hector Pérez3, Sara Kaufman1

1. Section of Clinical Microbiology, Hospital Juan A. Fernández
2. Mycobacteria Section, ANLIS INEI Dr. Carlos G. Malbrán
3. Infectious Diseases Department, Hospital Juan A. Fernández

Abstract

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, especially after trauma and postoperative 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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Copyright © 2024 Silvia Tützer, Tamara Posse, Roxana Paul, Johana Monteserin, Hector Pérez, Sara Kaufman

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