Correlation between cephalometric variables and obstructive sleep apnoea severity in children.

Area of Science:

• Pediatric Sleep Medicine
• Craniofacial Orthodontics
• Oromaxillofacial Surgery

Background:

• Obstructive sleep apnea (OSA) in children is linked to craniofacial growth alterations.
• Understanding the relationship between craniofacial morphology and OSA severity is crucial for diagnosis and treatment.
• Previous studies suggest a connection, but the specific correlations require further investigation.

Purpose of the Study:

• To analyze the correlation between cephalometric variables and the Obstructive Apnea/Hypopnea Index (OAHI) in children.
• To investigate if specific craniofacial features influence the severity of pediatric obstructive sleep apnea.
• To examine the relationship between upper nasopharyngeal width and maxillomandibular skeletal discrepancy in both sagittal and vertical planes.

Main Methods:

• Cephalometric analysis was performed on lateral radiographs of 47 children diagnosed with OSA via polysomnography.
• Spearman's correlation analysis assessed the relationship between OAHI and cephalometric variables.
• Pearson's correlation analysis investigated links between upper airway dimensions and maxillomandibular discrepancy.

Main Results:

• A positive correlation was found between OAHI and maxillomandibular discrepancy (ANB angle, rho=0.32, p=0.023).
• Upper nasopharyngeal width showed significant correlations with vertical maxillomandibular skeletal discrepancy.
• No significant differences were observed between OAHI and occlusal features or adenotonsillar hypertrophy.

Conclusions:

• Maxillomandibular discrepancy is significantly correlated with the severity of pediatric obstructive sleep apnea.
• Reduced nasopharyngeal width is associated with a hyperdivergent maxillomandibular growth pattern.
• These findings support a link between sleep-disordered breathing and craniofacial features, highlighting the importance of orthodontic evaluation in managing pediatric OSA.