Related Experiment Video
Updated: Aug 11, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
Endocarditis caused by Cardiobacterium valvarum
Elisabeth Bothelo1, Frédérique Gouriet, Pierre-Edouard Fournier
1Laboratoire de Microbiologie, CNRS UMS 6020, IFR 48, Centre Hospitalier-Universitaire de La Timone, 264 rue Saint Pierre, 13385 Marseille cedex 5, France.
Insights
A rare bacterium, Cardiobacterium valvarum, was identified as the cause of infectious endocarditis in a patient. This marks the third documented instance of this infection linked to C. valvarum.
Area of Science:
- Microbiology
- Infectious Diseases
Background:
- Infectious endocarditis (IE) is a serious infection affecting heart valves.
- Bacterial identification is crucial for effective treatment of IE.
Observation:
- A fastidious, gram-negative bacterium was isolated from the blood of a patient with acute IE.
- The patient was a 51-year-old male.
Findings:
- Phenotypic and genotypic analyses identified the bacterium as Cardiobacterium valvarum.
- This is the third reported case of IE caused by C. valvarum.
Implications:
- Highlights the etiological role of Cardiobacterium valvarum in infectious endocarditis.
- Emphasizes the importance of comprehensive diagnostic approaches for rare bacterial pathogens in IE.
- Contributes to the understanding of the clinical spectrum and epidemiology of C. valvarum infections.
Abstract:
A fastidious, gram-negative bacterium was isolated from the blood of a 51-year-old man who had acute infectious endocarditis (IE). Characterization of the organism through phenotypic and genotypic analyses revealed the causative role of Cardiobacterium valvarum. This is the third reported case of IE caused by C. valvarum.
More Related Videos
Related Concept Videos
Endocarditis I: Introduction
Rheumatic Heart Disease I: Introduction
Endocarditis III: Medical Management
Endocarditis II: Clinical Features of Infective Endocarditis
Myocarditis I: Introduction
Endocarditis IV: Nursing Management

