Mean platelet volume in acute rheumatic fever

Area of Science:

• Pediatrics
• Hematology
• Rheumatology

Background:

• Acute rheumatic fever (ARF) remains endemic, particularly affecting school-aged children in developing nations.
• Mean platelet volume (MPV) reflects platelet production and activation, offering insights into inflammatory processes.

Purpose of the Study:

• To investigate Mean platelet volume (MPV) levels in pediatric patients diagnosed with acute rheumatic fever (ARF).
• To compare MPV values between children with ARF and healthy controls.
• To assess changes in MPV following treatment for ARF.

Main Methods:

• A case-control study involving 40 children with ARF (including those with and without carditis) and 40 healthy controls.
• Measurement of MPV, white blood cell (WBC) count, platelet count, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP).
• Comparison of hematological parameters at the acute stage and post-treatment in ARF patients.

Main Results:

• Patients with ARF exhibited significantly higher white blood cell (WBC) and platelet counts compared to controls.
• Mean platelet volume (MPV) values were significantly lower in children with ARF during the acute phase.
• Following treatment, ARF patients showed decreased ESR and CRP, with a corresponding increase in MPV.
• MPV demonstrated a negative correlation with ESR, WBC count, and platelet count.

Conclusions:

• Mean platelet volume (MPV) is significantly reduced in the acute stage of pediatric ARF.
• MPV levels increase post-treatment, indicating a potential role as a reversible biomarker in ARF.
• MPV may serve as a useful indicator in the diagnosis and monitoring of acute rheumatic fever in children.