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Native valve endocarditis caused by Neisseria elongata Subsp. nitroreducens
Hanako Osuka1, Akito Ichiki, Masae Yamamoto
1Department of Infectious Diseases; 2. Department of Clinical Laboratories, Tokyo Medical University Ibaraki Medical Center, Japan.
Internal Medicine (Tokyo, Japan)
|April 3, 2015
Summary
Neisseria elongata subsp. nitroreducens rarely causes invasive infections. This report details a rare case of endocarditis in Japan without cardiac complications, treated successfully.
Area of Science:
- Oral microbiology
- Infectious diseases
- Cardiology
Background:
- Neisseria elongata is a commensal bacterium of the human oral cavity.
- Invasive infections caused by N. elongata are uncommon.
- Subspecies nitroreducens is a rare pathogen.
Observation:
- A case of endocarditis caused by N. elongata subsp. nitroreducens is presented.
- The patient had no prior cardiac complications.
- This is the first reported case in Japan involving N. elongata infection without a prosthetic device.
Findings:
- Successful treatment of N. elongata subsp. nitroreducens endocarditis was achieved.
- Intravenous beta-lactam therapy for five weeks was administered.
- Aortic valve replacement was performed.
Implications:
- Highlights the potential pathogenicity of oral Neisseria species.
- Underscores the importance of considering rare pathogens in endocarditis.
- Contributes to the understanding of N. elongata subsp. nitroreducens infections.
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