Objectives: To determine the clinical course of children with initial negative polysomnography (PSG) tests.
Methods: A retrospective chart review was performed on pediatric patients seen by an otolaryngologist who underwent a PSG between October 2012 and March 2019 for obstructive sleep apnea at a single, academic, tertiary-care center. Data including demographics, follow-up PSG tests, and surgeries were collected.
Results: A total of 2018 pediatric patients underwent PSG during the timeframe. About 535/2018 (26.5%) patients were negative for obstructive sleep apnea by PSG and had no prior adenotonsillectomy. About 408/535 (76.3%) did not obtain follow-up testing or surgeries; 69/535 (12.9%) underwent subsequent adenotonsillectomy for worsening symptoms without repeat PSG; and 58/535 (10.8%) obtained 1 or multiple follow-up PSG tests. Of the 58 who obtained repeat PSG, 25 (43.1%) were subsequently positive, with 17 of those 25 (29.3% of 58) undergoing adenotonsillectomy. Taken together, 94/535 (17.6%) of patients with initial negative PSG had worsening sleep disordered breathing.
Conclusion: A significant minority of children who initially tested negative for pediatric obstructive sleep apnea met criteria for diagnosis on follow up PSG. Additionally, other children with initial negative PSG underwent adenotonsillectomy for worsening symptoms in lieu of repeat testing. Patients should be educated that snoring in children could persist or worsen over time, even in the setting of a initial negative PSG.
Keywords: diagnostic polysomnography; obstructive sleep apnea; pediatric snoring.