0811 Impact of Tonsillectomy and Adenoidectomy on Delta Power in Children with Obstructive Sleep Apnea

Abstract Introduction Delta power is a known indicator of sleep drive and pressure. Non-REM delta increased in adults with sleep-disordered breathing, lowered by treatment continuous positive airway pressure (CPAP). Our purpose was to investigate the effect tonsillectomy adenoidectomy on children apnea. Here we report results from pilot study phase this project. Methods A retrospective performed using consecutive between age 5 15 years presenting our Sleep Disorders Clinic October 2019 2022 who underwent for obstructive apnea whom polysomnographic data available before after procedure. Spectral density analysis polysomnography determine power. Results total 41 were screened appropriate studies 10 children. The mean prior surgery 2687.8±1081, while 1737.9±522.9. Paired t-test showed significant large (~65%) reduction (Cohen’s D 0.91; p=0.018). Conclusion statistically adenoidectomy. This finding consistent expected improvement correction represents potent new metric measure biological efficacy impact Support (if any) None