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Reference values for nocturnal home polysomnography in primary schoolchildren
Dorothee Moss1, Michael S Urschitz, Anette von Bodman
1Department of Neonatology, University Children's Hospital Tuebingen, 72076 Tuebingen, Germany.
Pediatric Research
|September 27, 2005
Summary
Abbreviated home polysomnography offers a potential alternative for pediatric sleep studies. This research provides crucial reference values for respiratory events and movements in children, aiding in accurate diagnosis.
Area of Science:
- Pediatric Sleep Medicine
- Respiratory Physiology
- Diagnostic Tools in Children
Background:
- Abbreviated home polysomnography (HPS) is a potential alternative to laboratory polysomnography for pediatric sleep assessment.
- Lack of established reference values for respiratory events using nasal prongs hinders widespread acceptance of HPS.
- Normative data are needed to interpret HPS results accurately in children.
Purpose of the Study:
- To determine the prevalence and frequency of central, obstructive, and mixed apneas and hypopneas in children using abbreviated HPS with nasal prongs.
- To establish normative data for respiratory events, movements/arousals, and body position changes in a pediatric population.
- To provide reference values that can aid in the clinical interpretation of abbreviated HPS in school-aged children.
Main Methods:
- A population-based sample of 50 children (mean age 10.1 years) underwent abbreviated home polysomnography using nasal prongs.
- Data collected included central, obstructive, and mixed apneas, hypopneas, movements/arousals, and body position changes.
- Statistical analysis determined the average frequency and established cutoff values (mean + 2 SD or 95th percentile) for each sleep variable.
Main Results:
- All children exhibited central apneas, with an average frequency of 1.5 events per hour.
- Obstructive apneas (36%), mixed apneas (6%), and hypopneas (14%) were observed in a subset of children.
- Average hourly frequencies were 0.1 obstructive apneas, 0.01 mixed apneas, and 0.02 hypopneas, with established cutoff values provided.
- Movement/arousals averaged 8.2 per hour and body position changes 3.7 per hour, with corresponding cutoff values.
Conclusions:
- This study presents the first reference values for respiratory events and sleep variables obtained via abbreviated home polysomnography with nasal prongs in children.
- The established normative data can significantly improve the interpretation of abbreviated HPS results in clinical and research settings.
- Abbreviated HPS with nasal prongs shows promise as a diagnostic tool, supported by these new reference values for pediatric sleep assessment.