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Does REM AHI Predict Persistent OSA After Pediatric Adenotonsillectomy?
Caroline M Fields1, Nicolas S Poupore1, Jenna H Barengo1
1Department of Otolaryngology-Head & Neck Surgery, Medical University of South Carolina, Charleston, SC, USA.
Insights
Preoperative REM AHI does not reliably predict persistent obstructive sleep apnea (OSA) in children after adenotonsillectomy. Further research is needed to guide clinical decisions regarding REM AHI in pediatric OSA management.
Area of Science:
- Pediatric Sleep Medicine
- Otolaryngology
- Respiratory Medicine
Background:
- Obstructive sleep apnea (OSA) is common in children.
- Adenotonsillectomy is a primary treatment for pediatric OSA.
- The role of REM AHI in predicting treatment outcomes is unclear.
Purpose of the Study:
- To evaluate the association between preoperative REM AHI and persistent OSA post-adenotonsillectomy in children.
- To determine if REM-predominant OSA predicts treatment failure.
Main Methods:
- Retrospective chart review of 353 children undergoing adenotonsillectomy for OSA.
- Exclusion of children with craniofacial/neuromuscular disorders or tracheostomy.
- Analysis of preoperative and postoperative polysomnograms, defining persistent OSA as oAHI ≥ 1.5 events/hour.
Main Results:
- 65.7% of children had persistent OSA post-surgery.
- No significant difference in preoperative REM AHI or related metrics between persistent and resolved OSA groups.
- No significant difference in persistence rates between REM-predominant and REM-independent OSA.
Conclusions:
- Preoperative REM AHI appears to be a poor predictor of OSA persistence after adenotonsillectomy in children.
- Further studies are required to clarify the clinical utility of REM AHI in managing pediatric OSA.
Objective:
The utility of REM AHI in managing pediatric obstructive sleep apnea (OSA) is not fully understood. This study aimed to evaluate the relationship of preoperative REM AHI to postoperative persistence of OSA in children who underwent adenotonsillectomy.
Methods:
This retrospective chart review identified children under the age of 18 years that received an adenotonsillectomy for OSA and a preoperative and postoperative polysomnogram. Children with craniofacial or neuromuscular disorders or a tracheostomy were excluded. The primary outcome was the postoperative persistence of OSA, defined as a postoperative obstructive apnea-hypopnea index (oAHI) ≥ 1.5 events/hour. REM-predominant OSA was defined as a ratio of REM/NREM AHI ≥ 2. REM AHI minus NREM AHI and REM AHI minus oAHI helped to identify patients with a larger distribution of REM AHI.
Results:
A total of 353 patients were included. Postoperative persistent OSA was seen in 232 (65.7%) children. The preoperative REM AHI, REM AHI minus NREM AHI, and REM AHI minus oAHI of children with persistent OSA did not differ significantly from children with resolution of OSA. Rates of persistence were not different between those with REM-predominant OSA and REM-independent OSA (63.8% vs 70.7%, P = .218).
Conclusion:
This study suggests that preoperative REM AHI may be a poor predictor of OSA persistence after adenotonsillectomy. Further study is needed to help characterize how pre-operative REM AHI should impact clinicians' decision making, family counseling and recommendations.
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