Changes in platelet count and coagulation parameters in children with obstructive sleep apnea

Area of Science:

• Pediatric Pulmonology
• Sleep Medicine
• Hematology

Background:

• Obstructive sleep apnea (OSA) is a common condition in children.
• The relationship between OSA and coagulation status requires further investigation.
• Understanding these links can inform potential therapeutic strategies.

Purpose of the Study:

• To investigate the correlation between obstructive sleep apnea (OSA) and coagulation status in children.
• To explore the underlying mechanisms linking OSA and coagulation.
• To compare coagulation parameters in children with and without OSA.

Main Methods:

• 345 children diagnosed with OSA (age 2-14 years) were categorized into four groups based on their apnea-hypopnea index (AHI).
• Platelet (PLT) counts and various coagulation parameters were compared across these groups.
• Linear regression analysis was employed to examine correlations between polysomnography metrics (AHI, ODI, oxygen saturation) and coagulation parameters.

Main Results:

• Children with OSA exhibited significantly higher PLT counts compared to non-OSA controls (P < 0.001).
• The AHI and oxygen desaturation index (ODI) showed a positive correlation with PLT count.
• Lower minimum and mean oxygen saturation levels were negatively correlated with PLT count, while other coagulation tests (PT, INR, aPTT, TT, fibrinogen) showed no significant differences.

Conclusions:

• Children with OSA demonstrate elevated platelet counts, which are positively associated with OSA severity.
• No significant coagulation disorders were identified in children with OSA.
• The findings suggest that increased platelet activation or count may be a mechanism linked to OSA in pediatric populations.