A Case of Acute Pyogenic Sacroiliitis and Bacteremia Caused by Community-Acquired Methicillin-Resistant

Suyoung Kim1, Kang Lock Lee1, Hae Lim Baek1

  • 1Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea.

Infection & Chemotherapy
|January 30, 2014
PubMed

Insights

This study reports the first case of community-acquired Methicillin-resistant Staphylococcus aureus (CA-MRSA) causing pyogenic sacroiliitis in Korea. This rare infection presented with abscess and bacteremia, highlighting evolving MRSA epidemiology.

Area of Science:

  • Infectious Diseases
  • Osteoarticular Infections
  • Microbiology

Background:

  • Pyogenic sacroiliitis is a rare osteoarticular infection, often challenging to diagnose due to non-specific symptoms.
  • Staphylococcus aureus is the primary bacterial cause, with Methicillin-resistant S. aureus (MRSA) increasingly prevalent.
  • Community-acquired (CA)-MRSA is a growing concern in Korea.

Purpose of the Study:

  • To report the first domestic case of acute pyogenic sacroiliitis caused by CA-MRSA.
  • To characterize the specific strain of CA-MRSA involved in this infection.

Main Methods:

  • Case report of a patient with acute pyogenic sacroiliitis, abscess, and bacteremia.
  • Bacterial identification and characterization, including SCCmec type and PVL gene detection.
  • Multilocus sequence typing (MLST) for pathogen classification.

Main Results:

  • The causative agent was identified as CA-MRSA.
  • The MRSA strain carried type IV-A SCCmec and lacked the PVL gene.
  • The pathogen was classified as sequence type (ST) 72.

Conclusions:

  • This case represents the first documented instance of CA-MRSA causing pyogenic sacroiliitis with associated abscess and bacteremia in Korea.
  • The findings underscore the changing landscape of MRSA infections, extending beyond hospital settings.
  • Further surveillance is needed to understand the prevalence and clinical impact of CA-MRSA in osteoarticular infections.

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