title: Sleep quality, chronotypes and preferential timing of attacks in migraine without aura.
abstract: Clinical observations show that migraine attacks have a seasonal, menstrual and circadian timing, suggesting a role of chronobiological mechanisms and their alterations in the disease, but little experimental data exists about this issue. The aim of this study was to estimate sleep quality chronotypes and the possible circadian timing of attacks in migraneurs. One hundred patients suffering from migraine without aura according to the IHS criteria (2004), and 30 controls were enrolled. Morning and evening type subjects were more represented in migraine patients than in controls and showed a tendency towards worse sleep quality and higher disability. Forty-two percent of migraineurs presented more than 75% of their attacks at night. Morning and evening types rather than intermediate and differences between real and preferred times may represent stressors that can worsen the disease. A preferential timing for occurrence of migraine attacks during the night and early morning hours was documented.
authors.affiliation: Institute of Neurology, Department of Neurosciences, University of Pisa, Via Roma 67, I-56126, Pisa, Italy. s.gori@med.unipi.it
authors.forename: Sara
authors.initials: S
authors.lastname: Gori
authors.forename: Nicola
authors.initials: N
authors.lastname: Morelli
authors.forename: Michelangelo
authors.initials: M
authors.lastname: Maestri
authors.forename: Monica
authors.initials: M
authors.lastname: Fabbrini
authors.forename: Erica
authors.initials: E
authors.lastname: Bonanni
authors.forename: Luigi
authors.initials: L
authors.lastname: Murri
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D015897:Comorbidity; D006801:Humans; D008875:Middle Aged; D020325:Migraine with Aura / Q000453:epidemiology* / Q000503:physiopathology*; D012893:Sleep Wake Disorders / Q000453:epidemiology* / Q000503:physiopathology*