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Triple-valve endocarditis due to Lysinibacillus sphaericus infection
Jordan L Torres1, Jason R Faulhaber1
1Department of Infectious Disease, Virginia Tech Carilion School of Medicine, 213 McClanahan St SW, Roanoke, VA, 24014, USA.
Idcases
|August 14, 2023
Summary
Lysinibacillus sphaericus, an environmental bacterium, rarely causes human illness. This report details the first known case of endocarditis in a patient caused by L. sphaericus infection.
Area of Science:
- Microbiology
- Infectious Diseases
- Cardiology
Background:
- Lysinibacillus sphaericus is an environmental bacterium typically regarded as a contaminant in clinical settings.
- Its role in human pathogenesis is exceptionally rare, with limited documented cases of invasive disease.
Observation:
- A patient presented with symptoms indicative of severe infection.
- Diagnostic cultures isolated Lysinibacillus sphaericus from blood and relevant clinical samples.
Findings:
- The patient was diagnosed with triple valve endocarditis, a serious infection of the heart valves.
- Causative agent identified as Lysinibacillus sphaericus, marking the first reported instance of this bacterium causing endocarditis.
Implications:
- This case expands the known spectrum of human diseases caused by Lysinibacillus sphaericus.
- Highlights the importance of considering L. sphaericus in the differential diagnosis of endocarditis, even when considered a contaminant.
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