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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
CT of staphylococcal anterior mediastinal abscess in an infant
H K Bungay1, A G Shefler, K McHugh
1Department of Radiology, John Radcliffe Hospital, Oxford OX3 9DU, UK.
Insights
A rare pediatric anterior mediastinal abscess caused by Staphylococcus aureus originated from an infected intravenous cannula site. This case highlights an unusual cause of mediastinal abscesses in children, emphasizing prompt recognition and management.
Area of Science:
- Pediatric infectious diseases
- Surgical pathology
- Critical care medicine
Background:
- Bronchiolitis is a common pediatric respiratory infection, often caused by the respiratory syncytial virus.
- Staphylococcus aureus infections can arise at intravenous cannula sites, posing a risk for localized or systemic complications.
- Mediastinal abscesses are infrequent in pediatric populations and typically result from different etiological factors.
Observation:
- A 6-week-old infant with respiratory syncytial virus-induced bronchiolitis developed a Staphylococcus aureus infection.
- The infection was traced to a previous intravenous cannula insertion site.
- Despite antibiotic treatment, the infection progressed to an anterior mediastinal abscess.
Findings:
- Surgical drainage of the anterior mediastinal abscess was successfully performed.
- The patient experienced a full recovery following the intervention.
- This represents the first reported case of a pediatric mediastinal abscess secondary to an infected intravenous cannula site.
Implications:
- Highlights an unusual route of infection leading to mediastinal abscess in children.
- Underscores the importance of vigilant monitoring of intravenous cannula sites for potential infections.
- Suggests a need for increased awareness among clinicians regarding rare complications of cannula-related infections in pediatric patients.
Abstract:
A 6-week-old girl presented with bronchiolitis secondary to respiratory syncytial virus. Eight days after admission she developed a Staphylococcus aureus infection at a previous intravenous cannula site. Despite antibiotic therapy this led to an anterior mediastinal staphylococcal abscess, which was drained surgically and the patient recovered. Mediastinal abscesses are rare in children: haematogenous spread of infection is an unusual aetiological factor and we believe this to be the first case reported due to an infected cannula site.
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