Severe sepsis attributable to community-associated methicillin-resistant Staphylococcus aureus: an emerging fatal problem

Area of Science:

• Pediatrics
• Infectious Diseases
• Critical Care Medicine

Background:

• Community-associated Methicillin-Resistant Staphylococcus aureus (CA-MRSA) is an emerging cause of serious infections in children.
• Sepsis due to CA-MRSA bacteremia can lead to severe outcomes, including cardiorespiratory failure.

Purpose of the Study:

• To investigate the patterns of infection and outcomes in children with community-associated MRSA sepsis.
• To identify risk factors and complications associated with severe CA-MRSA sepsis in pediatric patients.

Main Methods:

• Retrospective review of children under 19 years old admitted with blood culture-proven CA-MRSA sepsis over a 2-year period.
• Inclusion criteria included specific blood culture parameters, evidence of systemic inflammatory response syndrome, and no recent hospital admissions.
• Data collected on clinical course, interventions, and outcomes.

Main Results:

• Eight pediatric patients were included in the study.
• Seven patients required mechanical ventilation, and seven required vasopressors.
• Four patients needed extracorporeal membrane oxygenation; four had septic arthritis or thrombophlebitis, with three developing bilateral necrotizing pneumonia.

Conclusions:

• Severe CA-MRSA sepsis in children can rapidly progress to cardiorespiratory failure with high mortality.
• Prompt evaluation of soft tissues and joints may help identify infection sources and prevent embolic dissemination.
• Intact neurologic survival was observed in 50% of the studied pediatric patients.