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Published on: July 16, 2020
[Capnocytophaga sputigena pleuropneumonitis: a case report]
1Service de pédiatrie, pneumologie, allergologie, mucoviscidose, hôpital Debrousse, 29, rue Soeur-Bouvier, 69322 Lyon, France.
Abstract:
Community-acquired pneumonia is complicated by purulent pleural effusion in approximately 28% of affected children. Its incidence has increased over the last decade. Streptococcus pneumoniae is the most frequent causal microorganism, encountered in roughly 80% of cases. We report the case of an immunocompetent 13-year-old teenager wearing orthodontic braces who suffered from pleuropneumonia due to Capnocytophaga sputigena. To date, this Gram-negative bacillus, a commensal of the buccal cavity, had never been reported to be responsible for pleural or lung infection. The clinical presentation is similar to that observed with usual bacteria, while bacterial sensitivity to betalactam antibiotics is excellent.
Insights
Community-acquired pneumonia can lead to purulent pleural effusion in children. A rare case highlights Capnocytophaga sputigena, a common oral bacterium, as a cause of pediatric pleuropneumonia.
Area of Science:
- Infectious Diseases
- Microbiology
- Pediatric Pulmonology
Background:
- Community-acquired pneumonia (CAP) frequently complicates into purulent pleural effusion in children, with increasing incidence.
- Streptococcus pneumoniae is the predominant pathogen in pediatric CAP, accounting for approximately 80% of cases.
Observation:
- A case of pleuropneumonia in an immunocompetent 13-year-old with orthodontic braces is presented.
- The infection was caused by Capnocytophaga sputigena, a Gram-negative bacillus typically found in the oral cavity.
Findings:
- This is the first reported instance of Capnocytophaga sputigena causing pleural or lung infection.
- The clinical presentation mimicked infections caused by more common bacterial pathogens.
- The isolated Capnocytophaga sputigena demonstrated excellent sensitivity to betalactam antibiotics.
Implications:
- Expands the spectrum of pathogens associated with pediatric pleuropneumonia.
- Highlights the potential for oral commensals to cause severe respiratory infections.
- Suggests betalactam antibiotics as a viable treatment option for Capnocytophaga sputigena-induced pleuropneumonia.
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