Red blood cell distribution width as a potential inflammatory marker in pediatric osteomyelitis

Area of Science:

• Pediatric Infectious Diseases
• Hematology
• Clinical Chemistry

Background:

• Red cell distribution width (RDW) is utilized in anemia diagnosis and recognized as a potential inflammation marker.
• Osteomyelitis is a bone infection requiring effective monitoring of treatment response.

Purpose of the Study:

• To investigate the correlation between Red cell distribution width (RDW) and acute-phase reactants in pediatric osteomyelitis patients undergoing antibiotic therapy.
• To assess the potential utility of RDW as a marker for treatment response in pediatric osteomyelitis.

Main Methods:

• Retrospective study design analyzing data from 82 pediatric patients diagnosed with osteomyelitis.
• Collected and analyzed Red cell distribution width (RDW), absolute neutrophil count, erythrocyte sedimentation rate, and C-reactive protein levels.
• Statistical analysis included correlation coefficients and generalized estimating equation modeling.

Main Results:

• A mild average increase of 1% in Red cell distribution width (RDW) was observed during antibiotic therapy (from 13.9% to 14.9%).
• Red cell distribution width (RDW) exhibited weak negative correlations with absolute neutrophil count (r=-0.21), erythrocyte sedimentation rate (r=-0.17), and C-reactive protein (r=-0.21).
• A weak negative correlation was found between RDW and C-reactive protein during therapy (B=-0.03).

Conclusions:

• The observed mild increase in Red cell distribution width (RDW) and its weak correlation with acute-phase reactants limit its effectiveness as a therapy response marker in pediatric osteomyelitis.
• Further research may be needed to identify more reliable biomarkers for monitoring treatment efficacy in pediatric osteomyelitis.