Synchronous airway lesions in children with obstructive sleep apnea

Area of Science:

• Pediatric Otolaryngology
• Sleep Medicine
• Respiratory Physiology

Background:

• Drug-induced sleep endoscopy is standard for pediatric obstructive sleep apnea (OSA) upper airway evaluation.
• The role of lower airway assessment via microlaryngoscopy and bronchoscopy (MLB) in pediatric OSA remains unclear.

Purpose of the Study:

• To investigate the association between synchronous airway lesions found during MLB and OSA severity in children undergoing adenotonsillectomy (AT).

Main Methods:

• Retrospective cohort study of 117 children undergoing AT for OSA.
• MLB findings were reviewed by pediatric otolaryngologists.
• Exclusion criteria included craniofacial abnormalities, genetic syndromes, or tracheostomy dependence.
• Analysis correlated airway findings with demographics, polysomnography, and surgical management.

Main Results:

• Synchronous airway lesions were identified in 37.6% of children, most commonly laryngomalacia-related abnormalities (19.7%).
• Airway lesions were associated with asthma (P=0.02) but not with age, race, insurance, or prematurity.
• No patient required intervention based on MLB findings, and surgical management remained unchanged.
• No significant differences in polysomnography parameters (apnea-hypopnea index, oxygen saturation nadir, sleep efficiency) were observed between groups.

Conclusions:

• Synchronous airway lesions are frequently found in pediatric OSA patients but do not correlate with OSA severity.
• These lesions appear incidental, suggesting current MLB use may be over-indicated.
• An individualized, selective approach to MLB in pediatric OSA is recommended pending evidence-based guidelines.