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Prevalence of bruxism in children with episodic migraine--a case-control study with polysomnography
Alice Hatsue Masuko, Thais Rodrigues Villa, Marcia Pradella-Hallinan
1Disciplina de Neurologia, Departamento de Neurologia e Neurocirurgia e da Universidade Federal de São Paulo, São Paulo, Brazil. fernandomorgadinho@hotmail.com.
Insights
Children with episodic migraine showed a higher prevalence of sleep bruxism compared to healthy controls. This study utilized polysomnography to identify this significant association in pediatric patients.
Area of Science:
- Pediatric Neurology
- Sleep Medicine
- Craniofacial Research
Background:
- Parental reports suggest a link between childhood migraine and sleep bruxism.
- Sleep disturbances are frequently observed in children experiencing migraines.
Purpose of the Study:
- To investigate the prevalence of sleep bruxism in children with episodic migraine.
- To compare sleep bruxism rates in pediatric migraineurs versus healthy controls using polysomnography.
Main Methods:
- Polysomnography was conducted on 20 children with episodic migraine and 20 age- and sex-matched controls.
- Participants were aged 6-12 years; migraine patients were recruited from a specialized clinic.
- Key sleep parameters and respiratory events were monitored and compared between groups.
Main Results:
- Sleep efficiency, latency, REM latency, arousal, and respiratory events were similar between migraineurs and controls.
- Sleep bruxism was observed in 25% of children with episodic migraine.
- No instances of sleep bruxism were detected in the control group (p=0.045).
Conclusions:
- Sleep bruxism is significantly more prevalent in children suffering from episodic migraine.
- Further research is needed to understand the shared underlying mechanisms of migraine and bruxism in children.
Background:
Parents of children with migraine have described a higher prevalence of sleep bruxism and other sleep disturbances in their children. The objective of this study was to use polysomnography to investigate the prevalence of bruxism during sleep in children with episodic migraine relative to controls.
Findings:
Controls and patients were matched by sex, age, years of formal education, presence of snoring, arousals per hour, and respiratory events per hour.A total of 20 controls, between 6 and 12 years old, with no history of headache, recruited from public schools in Sao Paulo between 2009 and 2012, and 20 patients with episodic migraine recruited from the Headache Clinic at the Federal University of Sao Paulo between 2009 and 2012 underwent polysomnography.No intervention was performed before sleep studies.Among migraine patients, 27.5% experienced aura prior to migraine onset. The sleep efficiency, sleep latency, REM sleep latency, arousals per hour, percentage of sleep stages, and breathing events per hour were similar between groups. Five children (25%) with episodic migraine exhibited bruxism during the sleep study while this finding was not observed in any control (p = 0.045).
Conclusions:
Our data demonstrate that bruxism during sleep is more prevalent in children with episodic migraine. Further prospective studies will help elucidate the underlying shared pathogenesis between bruxism and episodic migraine in children.
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