Extreme Pediatric Obstructive Sleep Apnea: Clinical Features, Surgical Management, and Long-term Outcomes
Bibliographic record
Abstract
Abstract Introduction: Extreme obstructive sleep apnea (OSA), defined by an obstructive apnea-hypopnea index (OAHI) greater than 100/hr, presents significant challenges in pediatric patients due to severity and comorbidities. This study aims to review the clinical characteristics, management strategies, and outcomes in this high-risk population. Methods: A retrospective analysis was conducted on pediatric patients with extreme OSA evaluated at the Hospital for Sick Children, Toronto, Canada, from 2010 to 2024. Data included demographic characteristics, polysomnography (PSG) results, treatment modalities, surgical interventions, post-operative outcomes, and long-term respiratory support requirements. This study was approved by the Research Ethics Board (REB No. 1000081869) at the Hospital for Sick Children. Results: Fifty patients (median age: 4.9 years, 64% male) were reviewed. Common comorbidities included trisomy 21 (n=11, 22%), obesity (n=10, 20%), complex neurological disorders (n=10, 20%), and craniofacial syndromes (n=7, 14%). Median OAHI was 123.2 events per hour (IQR: 112, 143.1), with nadir SpO₂ at 65.5% (IQR: 52.3, 74.3). Pre-surgical respiratory support was required in 72% (n=36) of cases, and adenotonsillectomy was the primary surgery in 54% (n=27), with 27.3% (n=3) requiring major respiratory support post-operatively. Residual OSA persisted in 77.8% (n=21), and 66% (n=33) required long-term respiratory support. Mortality was 10% (n=5), mainly from respiratory illness (n=4). Risk factors for residual OSA included lower nadir SpO₂ [Adjusted OR 1.1 (1.05, 1.15), p=0.04] and higher ODI [Adjusted OR 1.2 (1.05, 1.5), p=0.04]. A younger age group lower than 2 years was associated with higher 5-year mortality [Adjusted OR 16.3 (1.39, 23.4), p<0.001], particularly with comorbid craniofacial anomalies and laryngomalacia. Conclusion: Pediatric patients with extreme OSA face high risks for respiratory morbidity and mortality, especially among younger children with complex comorbidities. Residual OSA and long-term respiratory are common, highlighting the necessity for tailored, ongoing, multidisciplinary management strategies in this vulnerable population. Keywords: Extreme Pediatric Obstructive Sleep Apnea, Obstructive Apnea-Hypopnea Index (OAHI) > 100/hr, OSA mortality, Surgical and Respiratory Management.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".