Prediction of Tongue Base Obstruction During Sleep

Inclusion Criteria: * Age between 6 and 17 years old * Medical diagnosis of obstructive sleep-disordered breathing requiring surgical removal of tonsils (partial or total) and/or adenoids * Positive Pediatric Sleep Questionnaire (8 or more positive responses) * Eligibility for surgical intervention Exclusion Criteria: * Neurological, cardiac, or respiratory comorbidity other than obstructive sleep-disordered breathing * Previous surgery of the upper airway or oral cavity * History of or current head or neck cancer * Cranial, upper airway, or oral cavity malformation * Contraindication to performing endoscopy