Primary Bacterial Pyomyositis in Children: A Systematic Review

Area of Science:

• Pediatric Infectious Diseases
• Musculoskeletal Infections
• Epidemiology

Background:

• Tropical pyomyositis incidence is rising in the United States and Europe.
• This condition requires accurate description of its clinical features and management.
• Understanding demographics, presentation, and outcomes is crucial.

Purpose of the Study:

• To describe demographics, clinical presentation, and microbiology of tropical pyomyositis.
• To review imaging, management (medical and surgical), and complications.
• To identify predictors of the clinical course in affected children.

Main Methods:

• Systematic review of 23 studies from major databases (PubMed, Scopus, etc.).
• Statistical analysis of data from selected articles.
• Level IV evidence based on systematic review.

Main Results:

• Average age at presentation was 8.4 years; males were more commonly affected.
• Common symptoms included fever, painful limp, and localized pain; pelvis and lower extremity were common sites.
• Staphylococcus aureus was the most common pathogen; 40% of cases were managed medically, while others required surgical drainage. Complications occurred in 11.3% of patients.

Conclusions:

• Primary pyomyositis should be considered in pediatric infections.
• MRI is common, but ultrasound is a cost-effective alternative for imaging.
• Favorable prognosis with early diagnosis, medical management, and possible surgical intervention.