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Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
Primary purulent pericarditis due to group C Streptococcus
R Scott McClure1, John J Burgess, Alex J Bayes
1CSTAR-University Hospital, 339 Windermere Road, London, Ontario N6A 5A5, Canada. scott.mcclure@c-star.ca
Abstract:
In the antibiotic era, purulent pericarditis, an infection associated with high mortality, is uncommon. The causative organism is generally Staphylococcus aureus or Streptococcus pneumoniae arising from contiguous spread or hematogenous dissemination of an underlying infection elsewhere in the body. The present report describes a previously healthy individual who presented with acute infectious pericarditis with the offending organism identified as Lancefield group C Streptococcus equi. After an initial pericardial window was unable to prevent recurrent pericardial effusion, pericardiectomy was performed and the patient slowly recovered from the incident.
Insights
Purulent pericarditis is a rare but serious infection. This case highlights Streptococcus equi as a cause, requiring surgical intervention for recovery.
Area of Science:
- Cardiology
- Infectious Diseases
- Microbiology
Background:
- Purulent pericarditis is an uncommon infection in the antibiotic era, often linked to high mortality rates.
- Common causative agents include Staphylococcus aureus and Streptococcus pneumoniae, typically spreading from adjacent infections or through the bloodstream.
Observation:
- A previously healthy individual presented with acute infectious pericarditis.
- The specific causative organism was identified as Lancefield group C Streptococcus equi.
Findings:
- Initial management with a pericardial window failed to resolve recurrent pericardial effusion.
- Surgical pericardiectomy was ultimately required for the patient's slow but steady recovery.
Implications:
- This case expands the known spectrum of pathogens causing purulent pericarditis.
- It underscores the importance of considering less common organisms and aggressive surgical management in refractory cases.
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