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Updated: Sep 10, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Staphylococcus aureus Central Nervous System Infections in Children
Jesus G Vallejo1, Alexandra N Cain, Edward O Mason
1From the *Department of Pediatrics, Section of Infectious Diseases, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas.
Insights
Pediatric Staphylococcus aureus central nervous system (CNS) infections are uncommon but can be severe. Methicillin-sensitive S. aureus (MSSA) caused most cases, often linked to devices, while methicillin-resistant S. aureus (MRSA) emerged in community settings.
Area of Science:
- Pediatric Infectious Diseases
- Neuroscience
- Microbiology
Background:
- Central nervous system (CNS) infections due to Staphylococcus aureus are rare in children.
- This study reviews the epidemiology, clinical presentation, and treatment of S. aureus CNS infections in pediatric patients.
Purpose of the Study:
- To analyze the characteristics and outcomes of Staphylococcus aureus CNS infections in a pediatric population.
- To understand the evolving epidemiology of S. aureus CNS infections, including the roles of MSSA and MRSA.
Main Methods:
- Retrospective review of pediatric cases with S. aureus CNS infection (positive CSF cultures or spinal epidural abscess) from 2001-2013.
- Analysis of infection sources (device-associated, postoperative, hematogenous), causative strains (MSSA vs. MRSA), treatments, and outcomes.
Main Results:
- Out of 68 patients, 70 S. aureus CNS infections were identified, with 70% secondary to CNS devices.
- Methicillin-sensitive S. aureus (MSSA) accounted for 67.2% of infections, while methicillin-resistant S. aureus (MRSA) caused 32.8%, often in community-acquired cases (USA300/pvl).
- Most patients received nafcillin (MSSA) or vancomycin (MRSA); MRSA infections showed a favorable response to vancomycin, though optimal trough levels and combination therapy effects were uncertain. Only one death occurred.
Conclusions:
- The epidemiology of invasive S. aureus CNS infections is dynamic, with MSSA remaining predominant, often associated with neurosurgical procedures.
- Community-acquired S. aureus meningitis and spinal epidural abscesses occurred in previously healthy children.
- Vancomycin appears effective for MRSA CNS infections, but further research is needed on optimal dosing strategies and the benefits of combination therapy.
Background:
Central nervous system (CNS) infections caused by Staphylococcus aureus are uncommon in pediatric patients. We review the epidemiology, clinical features and treatment in 68 patients with a S. aureus CNS infection evaluated at Texas Children's Hospital.
Methods:
Cases of CNS infection in children with positive cerebrospinal fluid cultures or spinal epidural abscess (SEA) for S. aureus at Texas Children's Hospital from 2001 to 2013 were reviewed.
Results:
Seventy cases of S. aureus CNS infection occurred in 68 patients. Forty-nine cases (70%) were secondary to a CNS device, 5 (7.1%) were postoperative meningitis, 9 (12.8%) were hematogenous meningitis and 7 (10%) were SEAs. Forty-seven (67.2%) were caused by methicillin-sensitive S. aureus (MSSA) and 23 (32.8%) by methicillin-resistant S. aureus (MRSA). Community-acquired infections were more often caused by MRSA that was clone USA300/pvl. Most patients were treated with nafcillin (MSSA) or vancomycin (MRSA) with or without rifampin. Among patients with MRSA infection, 50% had a serum vancomycin trough obtained with the median level being 10.6 μg/mL (range: 5.4-15.7 μg/mL). Only 1 death was associated with S. aureus infection.
Conclusions:
The epidemiology of invasive of S. aureus infections continues to evolve with MSSA accounting for most of the infections in this series. The majority of cases were associated with neurosurgical procedures; however, hematogenous S. aureus meningitis and SEA occurred as community-acquired infections in patients without predisposing factors. Patients with MRSA CNS infections had a favorable response to vancomycin, but the beneficial effect of combination therapy or targeting vancomycin trough concentrations of 15-20 μg/mL remains unclear.
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