Prothrombotic state in children with obstructive sleep apnea.

Area of Science:

• Pediatric Hematology
• Sleep Medicine
• Cardiovascular Research

Background:

• Obstructive sleep apnea (OSA) is increasingly recognized as a risk factor for cardiovascular diseases.
• Blood hypercoagulability is a potential mechanism linking OSA to adverse cardiovascular outcomes.
• Understanding these links in pediatric populations is crucial for early intervention.

Purpose of the Study:

• To investigate the association between hemostatic parameters and sleep breathing variables in children with suspected OSA.
• To determine if OSA severity and sleep disruption correlate with specific markers of coagulation.

Main Methods:

• 152 snoring children underwent polysomnography to diagnose OSA.
• Blood samples were analyzed for platelet count, plateletcrit, PDW, MPV, PT, aPTT, fibrinogen, and CRP.
• Statistical analyses controlled for anthropometric factors like age, gender, and BMI z-score.

Main Results:

• Children with OSA exhibited higher platelet count, plateletcrit, and PDW compared to non-OSA children.
• Platelet count correlated with minimum SaO2, plateletcrit with time below 90% SaO2, and MPV with the apnea-hypopnea index.
• PT and aPTT showed correlations with oxygen saturation parameters (mean SaO2, ODI).

Conclusions:

• Pediatric OSA is associated with enhanced blood coagulability.
• Apnea severity and sleep disruption are linked to specific clotting factor alterations, independent of common covariates.
• These findings highlight potential hemostatic pathways contributing to cardiovascular risks in pediatric OSA.