First case of infective endocarditis caused by Methylobacterium radiotolerans

Methylobacterium radiotolerans has only been identified in blood samples from end-stage renal failure or leukaemia patients in clinic. Here, we report a case of infective endocarditis (IE) caused by M. radiotolerans . 16S rRNA sequencing and matrix-assisted laser desorption/ionization time-of-flight...

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Bibliographic Details
Published in:European journal of clinical microbiology & infectious diseases 2020-09, Vol.39 (9), p.1785-1788
Main Authors: Chen, Ruifei, Qi, Xinkun, Ma, Bing, Xu, Poshi, Yuan, Youhua
Format: Article
Language:English
Subjects:
Aminoglycosides
Biomedical and Life Sciences
Biomedicine
Blood
Brief Report
Case reports
Ciprofloxacin
Diagnosis, Differential
Echocardiography
End-stage renal disease
Endocarditis
Endocarditis - diagnosis
Endocarditis - diagnostic imaging
Endocarditis - microbiology
Humans
Immune response
Internal Medicine
Ionization
Ions
Kidney diseases
Leukemia
Male
Mass spectrometry
Mass spectroscopy
Medical Microbiology
Methylobacterium
Methylobacterium - isolation & purification
Middle Aged
Renal failure
rRNA 16S
Sensitivity analysis
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Summary:Methylobacterium radiotolerans has only been identified in blood samples from end-stage renal failure or leukaemia patients in clinic. Here, we report a case of infective endocarditis (IE) caused by M. radiotolerans . 16S rRNA sequencing and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) were used to identify the bacteria isolated from cardiac vegetation. A drug sensitivity test was conducted by disk diffusion on blood Mueller-Hinton agar. This isolate was identified as M. radiotolerans , which was susceptible to aminoglycosides and ciprofloxacin. Our findings also suggest that M. radiotolerans can cause infection in a patient with normal immune function.
ISSN:0934-9723
1435-4373
DOI:10.1007/s10096-020-03896-7