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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
12:18

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA

Published on: February 9, 2011

23.5K

Declining Prevalence of Methicillin-Resistant Staphylococcus aureus Septic Arthritis and Osteomyelitis in Children:

Lindsay Weiss1, Amanda Lansell2, Janet Figueroa3

  • 1Division of Hospital Medicine, Joe DiMaggio Children's Hospital, Hollywood, FL 33021, USA.

Antibiotics (Basel, Switzerland)
|March 4, 2020
PubMed

Insights

Methicillin-resistant Staphylococcus aureus (MRSA) osteomyelitis in children presents higher severity than MSSA, but MRSA incidence is declining. Clindamycin may be a preferred initial antibiotic for these infections.

Area of Science:

  • Pediatric Infectious Diseases
  • Orthopedic Infections
  • Microbiology

Background:

  • Osteomyelitis and septic arthritis are significant pediatric bone and joint infections.
  • Distinguishing outcomes between Methicillin-resistant Staphylococcus aureus (MRSA) and Methicillin-sensitive Staphylococcus aureus (MSSA) is crucial for treatment.
  • Initial antibiotic choice may impact patient recovery and length of stay.

Purpose of the Study:

  • To compare clinical characteristics and outcomes of pediatric osteomyelitis/septic arthritis caused by MRSA versus MSSA.
  • To evaluate the effect of initial antibiotic regimens on patient outcomes in these pediatric infections.
  • To inform optimal antibiotic strategies for Staphylococcus aureus bone and joint infections in children.

Main Methods:

  • Retrospective analysis of pediatric patients (15 days to 18 years) with osteoarticular infections.
  • Inclusion of patients with identified causative microorganisms (MRSA or MSSA) between 2009 and 2016.
  • Comparison of clinical data, including C-reactive protein levels, hospitalization duration, and antibiotic treatments.

Main Results:

  • Methicillin-resistant Staphylococcus aureus (MRSA) infections were associated with higher initial C-reactive protein levels and longer hospitalizations compared to Methicillin-sensitive Staphylococcus aureus (MSSA).
  • Patients initially treated with vancomycin experienced longer hospital stays than those treated with clindamycin.
  • Despite increased severity, MRSA incidence has decreased at the study institution.

Conclusions:

  • MRSA osteomyelitis and septic arthritis in children indicate greater infection severity than MSSA.
  • Clindamycin should be considered for initial empiric antibiotic therapy for pediatric osteomyelitis and septic arthritis.
  • Continuous surveillance of local microbiology and treatment outcomes is recommended to guide antibiotic selection.

Keywords:
MRSAMSSAantimicrobial stewardshipbone and jointepidemiologymicrobiologyosteoarticularresistance trends

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