Changes in equine complete blood count parameters and inflammatory indices with inflammation

Area of Science:

• Veterinary Medicine
• Equine Health
• Diagnostic Biomarkers

Background:

• Early inflammation detection is vital for equine health preservation.
• Complete blood count (CBC) parameters and inflammatory indices are key indicators.
• Establishing accurate reference intervals (RIs) aids in diagnosing inflammation.

Purpose of the Study:

• To identify variations in CBC parameters and inflammatory indices during inflammation.
• To develop RIs from horses with known inflammatory states.
• To test the hypothesis that RIs from non-inflamed horses improve inflammation prediction.

Main Methods:

• Categorized 199 horses into inflamed (n=48) and non-inflamed (n=150) groups based on serum amyloid A (SAA) and haptoglobin.
• Developed non-inflamed RIs using data from non-inflamed horses.
• Analyzed CBC parameters and inflammatory indices using Kruskal-Wallis and ROC analyses.

Main Results:

• All three inflammatory indices showed higher median values in inflamed horses.
• Inflammatory index RIs demonstrated significant predictive value (AUC > 0.64).
• Non-inflamed RIs increased the likelihood of correctly categorizing horses with inflammation.

Conclusions:

• Inflammatory indices and non-inflamed RIs show promise for aiding equine inflammation detection.
• These tools can support veterinary diagnostics in horses.
• Further research can refine these diagnostic approaches for better horse care.