Korean J Med.  2010 Dec;79(6):720-723.

A case of prosthetic valve endocarditis due to Neisseria elongata subsp. nitroreducens

Affiliations
  • 1Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea. sijung@chonnam.ac.kr
  • 2Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea.

Abstract

Infective endocarditis due to Neisseria elongata subsp. nitroreducens occurs infrequently. In this report, we describe a case of infective endocarditis caused by N. elongata subsp. nitroreducens in a patient with a prosthetic heart valve. A 55-year-old woman presented with complaints of fever and headache that she had been experiencing over the course of 4 weeks. Transesophageal echocardiography showed vegetation on the prosthetic mitral valve. A blood culture isolate was confirmed as N. elongata subsp. nitroreducens using biochemical characterization and DNA sequencing of 16S rRNA. The clinical manifestations improved with medical treatment.

Keyword

Neisseria elongata; Endocarditis; Heart valve prosthesis

MeSH Terms

Echocardiography, Transesophageal
Endocarditis
Female
Fever
Headache
Heart Valve Prosthesis
Heart Valves
Humans
Middle Aged
Mitral Valve
Neisseria
Neisseria elongata
Sequence Analysis, DNA
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