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Nocturnal symptoms and sleep disturbances in clinically stable asthmatic children
Inder Mohan Chugh1, Puneet Khanna, Ashok Shah
1Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
Insights
Asthmatic children experience frequent nocturnal symptoms and sleep disturbances, impacting their daytime activity. Awareness of the asthma-sleep connection is crucial for better asthma management in children.
Area of Science:
- Pediatric Pulmonology
- Sleep Medicine
- Asthma Research
Background:
- Nocturnal symptoms are linked to asthma severity.
- Even clinically stable asthmatic children report sleep disturbances.
- Understanding these issues in a home environment is important.
Purpose of the Study:
- To determine the prevalence of nocturnal symptoms and sleep disturbances in stable, school-going asthmatic children.
- To compare these parameters with age and gender-matched healthy children.
- To assess the impact of environmental tobacco smoke exposure.
Main Methods:
- A case-control, questionnaire-based study involving 70 children (40 asthmatics, 30 healthy controls).
- Parents maintained daily sleep diaries and recorded peak expiratory flow (PEF) for one week.
- Utilized validated scales to assess sleep quality and daytime function.
Main Results:
- Asthmatic children showed significantly lower mean morning and evening PEF values.
- A high percentage of asthmatic children reported nocturnal symptoms (cough, breathlessness, wheeze, chest tightness).
- Asthmatic children experienced significantly more sleep disturbances, including daytime sleepiness, tiredness, and difficulty maintaining sleep, along with poorer sleep quality and daytime fitness.
Conclusions:
- Clinically stable asthmatic children exhibit increased nocturnal symptoms and sleep disturbances, leading to poorer sleep quality.
- There is a lack of awareness regarding the association between asthma and sleep, potentially leading to suboptimal asthma control.
- Addressing sleep issues is vital for improving overall health and daytime functioning in pediatric asthma patients.
Abstract:
Presence of nocturnal symptoms is related to asthma severity. Clinically stable asthmatic children, too, report frequent nocturnal symptoms and sleep disturbances. The study determined these parameters in stable, asthmatic children, in their home environment. This case-control, questionnaire-based study in 70 school-going children comprised 40 asthmatics (Group 1) and 30, age/gender matched, healthy children (Group 2). Parents maintained peak expiratory flow (PEF) and sleep diaries for one week. Group 1 had significantly lower mean morning (250.3 vs. 289.1 I/minute) and mean evening PEF values (261.7 vs. 291.3 I/minute). Group 1 (38.95%), reported frequent nocturnal symptoms like cough (36.90%), breathlessness (32.80%), wheeze (27.68%) and chest tightness (14.35%). Sleep disturbances, significant in Group 1 (38, 95% vs. 14.35%), included daytime sleepiness (24.60%), daytime tiredness (20.50%), difficulty in maintaining sleep (15.38%), early morning awakening (14.35%), struggle against sleep during daytime (12.30%), and involuntarily falling asleep (17.43%). On a scale of 1-6, Group 1 scored significant sleep disturbances/patient (3 vs. 0.8); lethargy/tiredness in morning (2.9 vs. 2.2), poorer sleep quality (4.7 vs. 5.4), less parents' satisfaction with child's sleep (4.5 vs. 5.5) and daytime fitness (4.1 vs. 5.3). Group 1, when exposed to environmental tobacco smoke (22, 55%), reported significant nocturnal symptoms (18/22, 81%) and reduced mean morning and evening PEF values (17/22, 77%). It is concluded that clinically stable, asthmatic children reported increased nocturnal symptoms, sleep disturbances and poorer sleep quality. Lack of awareness of asthma-sleep association and its clinical implications could lead to poor asthma control and impaired daytime activity.
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