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Pain in Sleepwalking: A Clinical Enigma
Régis Lopez1,2, Isabelle Jaussent2, Yves Dauvilliers1,2
1National Reference Network for Narcolepsy, Sleep-Wake Disorders Center, Department of Neurology, Gui-de-Chauliac Hospital, CHU Montpellier, France.
Sleep
|April 24, 2015
Summary
Sleepwalkers experience more chronic pain, headaches, and migraines. Paradoxically, they often report no pain during injurious sleepwalking episodes, suggesting altered pain processing.
Area of Science:
- Neurology
- Sleep Medicine
- Pain Research
Background:
- Sleepwalking (somnambulism) is a disorder of arousal from slow-wave sleep.
- Dissociated brain activity during sleepwalking may be linked to altered pain perception (nociception).
Purpose of the Study:
- To compare pain prevalence (chronic pain, headache, migraine) in sleepwalkers versus controls.
- To investigate pain impact and determinants in sleepwalkers.
- To assess pain perception during injurious parasomnia episodes.
Main Methods:
- Cross-sectional case-control study involving 100 sleepwalkers and 100 controls.
- Assessment of sleep, pain, mood, and quality of life.
- Retrospective pain assessment during parasomnia events.
Main Results:
- Sleepwalkers showed higher rates of lifetime headache, migraine, and chronic pain.
- Adjusted analysis linked sleepwalking to increased headache and migraine risk.
- Sleepwalkers with chronic pain were older and had more sleepiness, insomnia, and depressive symptoms.
- 78.7% of sleepwalkers reported no pain during injurious parasomnia episodes.
Conclusions:
- Sleepwalking is associated with increased headache and migraine prevalence.
- A clinical paradox exists: frequent pain during wakefulness contrasts with analgesia during parasomnia.
- Findings suggest a link between dissociated brain activity in sleepwalking and nociceptive dysregulation.
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