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Can Circadian Dysregulation Exacerbate Migraines?
- Source :
-
Headache: The Journal of Head & Face Pain . Jul2018, Vol. 58 Issue 7, p1040-1051. 12p. 1 Diagram, 2 Charts, 1 Graph. - Publication Year :
- 2018
-
Abstract
- Objective: This observational pilot study examined objective circadian phase and sleep timing in chronic migraine (CM) and healthy controls (HC) and the impact of circadian factors on migraine frequency and severity. Background: Sleep disturbance has been identified as a risk factor in the development and maintenance of CM but the biological mechanisms linking sleep and migraine remain largely theoretical. Methods: Twenty women with CM and 20 age‐matched HC completed a protocol that included a 7 day sleep assessment at home using wrist actigraphy followed by a circadian phase assessment using salivary melatonin. We compared CM vs HC on sleep parameters and circadian factors. Subsequently, we examined associations between dim‐light melatonin onset (DLMO), the midpoint of the sleep episode, and the phase angle (time from DLMO to sleep midpoint) with the number of migraine days per month and the migraine disability assessment scale (MIDAS). Results: CM and HC did not differ on measures of sleep or circadian phase. Within the CM group, more frequent migraine days per month was significantly correlated with DLMO (r = .49, P = .039) and later sleep episode (r = .47, P = .037). In addition, a greater phase angle (ie, circadian misalignment) was significantly correlated with more severe migraine‐related disability (r = .48, P = .042). These relationships remained significant after adjusting for total sleep time. Conclusions: This pilot study revealed that circadian misalignment and delayed sleep timing are associated with higher migraine frequency and severity, which was not better accounted for by the amount of sleep. These findings support the plausibility and need for further investigation of a circadian pathway in the development and maintenance of chronic headaches. Specifically, circadian misalignment and delayed sleep timing could serve as an exacerbating factor in chronic migraines when combined with biological predispositions or environmental factors. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CHRONIC disease risk factors
*SALIVA analysis
*ACTIGRAPHY
*FUNCTIONAL assessment
*LIGHT
*MEDICAL protocols
*MELATONIN
*SCIENTIFIC observation
*SLEEP disorders
*PILOT projects
*SEVERITY of illness index
*DISEASE exacerbation
*CHRONOBIOLOGY disorders
*DISEASE complications
*DIAGNOSIS
MIGRAINE risk factors
MIGRAINE complications
Subjects
Details
- Language :
- English
- ISSN :
- 00178748
- Volume :
- 58
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Headache: The Journal of Head & Face Pain
- Publication Type :
- Academic Journal
- Accession number :
- 131455851
- Full Text :
- https://doi.org/10.1111/head.13310