Poor sleep quality measured by polysomnography in non-obese asthmatic children with or without moderate to severe...

Area of Science:

• Pediatric Pulmonology
• Sleep Medicine
• Child Psychology

Background:

• The combined impact of asthma and obstructive sleep apnea (OSA) on pediatric sleep quality is not well understood.
• Investigating sleep disturbances in children with asthma is crucial for comprehensive care.

Purpose of the Study:

• To compare sleep quality and emotional/behavioral issues in children with and without asthma, stratified by the presence or absence of moderate to severe OSA.
• To identify specific sleep alterations associated with asthma in children.

Main Methods:

• A cross-sectional study involving 102 non-obese children (6-12 years) underwent polysomnography and emotional/behavioral assessments.
• Participants were categorized based on asthma status and sleep-disordered breathing (respiratory disturbance index [RDI] ≤5 or >5 events/hour).
• BMI and AHI were matched across groups to isolate the effects of asthma and sleep-disordered breathing.

Main Results:

• Asthmatic children with normal breathing (AHI ≤5/h) showed longer sleep latency, increased leg movement index (LMI), and reduced slow-wave sleep compared to non-asthmatic peers.
• Asthmatic children with OSA (AHI >5/h) exhibited higher REM sleep, sleep stages 1 & 2, reduced slow-wave sleep, and elevated respiratory arousal index and LMI versus non-asthmatic counterparts.
• No significant differences in emotional or behavioral problems were observed among the groups.

Conclusions:

• Sleep disturbances are prevalent in children with asthma, irrespective of OSA severity.
• Non-obese asthmatic children demonstrate reduced slow-wave sleep, indicating impaired sleep architecture.
• Routine sleep quality assessment is recommended for children diagnosed with asthma.