Abstract

OBJECTIVES/HYPOTHESIS
The aim of this study was to demonstrate postoperative changes in sleep quality in children with obstructive sleep apnea (OSA), using both conventional sleep staging and electrocardiogram-based cardiopulmonary coupling (CPC) analysis. The hypothesis is that being electroencephalography (EEG)-independent, CPC may detect changes in sleep quality that traditional sleep architecture analysis cannot.
STUDY DESIGN
Retrospective outcome research.
METHODS
We included 37 children (aged 6.89 ± 2.76 years, 28 male) with OSA who underwent adenotonsillectomy, and analyzed standard polysomnography and CPC parameters from a full-night study before and after adenotonsillectomy. High-frequency coupling (HFC) and low-frequency coupling (LFC) were used as indices of stable and unstable sleep, respectively.
RESULTS
Adenotonsillectomy led to a significant change in CPC parameters (HFC, 50.3 ± 16.1% to 56.1 ± 14.7%, P = .03; LFC, 35.1 ± 14.5% to 27.3 ± 13.0%, P = .003), which was paralleled by improvements in the apnea-hypopnea (12.7 ± 13.7 to 1.0 ± 0.8, P < .001) and arousal index (20.8 ± 11.5 to 9.9 ± 3.9, P < .001). Polysomnographic sleep stage parameters other than the arousal index did not reflect postoperative resolution of OSA.
CONCLUSIONS
In pediatric OSA, postoperative improvement of sleep quality is more readily discernible by CPC analysis than EEG-based sleep staging. The CPC analysis may have potential advantages in the assessment of sleep quality in pediatric populations.

Links

Publisher Full Text

Authors

Lee SH, Choi JH, Park IH, Lee SH, Kim TH, Lee HM, Park HK, Thomas RJ, Shin C, Yun CH

Institution

Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, South Korea.

Source

The Laryngoscope 122:9 2012 Sep pg 2115-21

MeSH

Adenoidectomy
Child
Child, Preschool
Cohort Studies
Electrocardiography
Electroencephalography
Female
Humans
Male
Monitoring, Physiologic
Polysomnography
Postoperative Care
Preoperative Care
Quality of Life
Retrospective Studies
Risk Assessment
Severity of Illness Index
Sleep
Sleep Apnea, Obstructive
Sleep Stages
Tonsillectomy

Pub Type(s)

Evaluation Studies
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22740041