Drug-Induced Sleep Endoscopy Predicts Subjective Outcomes of Adenotonsillectomy

Area of Science:

• Pediatric Otolaryngology
• Sleep Medicine
• Surgical Outcomes Research

Background:

• Persistent obstructive sleep apnea (OSA) affects 20%-30% of children post-adenotonsillectomy (AT).
• Identifying predictors of treatment success is crucial for managing pediatric sleep-disordered breathing (SDB).
• Drug-induced sleep endoscopy (DISE) assesses airway collapse during sleep.

Purpose of the Study:

• To evaluate the predictive capability of DISE performed during AT for subjective outcomes.
• To identify factors associated with persistent OSA symptoms after AT in children.

Main Methods:

• Prospective cohort study of 194 children (aged 2-18 years) undergoing AT for SDB.
• Children with risk factors for AT failure (e.g., age >7, obesity, severe OSA) were included.
• DISE was performed concurrently with AT; multivariable regression analyzed predictors of post-AT PSQ and OSA-18 scores.

Main Results:

• Significant improvements in Pediatric Sleep Questionnaire (PSQ) and OSA-18 scores were observed post-AT (p < 0.001).
• Most frequent obstruction sites included tonsils, nasal airway, adenoids, and velopharynx.
• Worse subjective outcomes were associated with obesity, male gender, and multilevel obstruction (nasal airway, tongue base, adenotonsils).

Conclusions:

• Persistent OSA and symptom burden remain common challenges after AT in at-risk children.
• DISE findings, particularly multilevel obstruction involving the nasal airway and tongue base, predict poorer subjective outcomes.
• Obesity and male gender are also significant predictors of worse results following AT.