Headache
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Clinical Trial
Correlation of increase in phosphene threshold with reduction of migraine frequency: observation of levetiracetam-treated subjects.
To correlate the reduction in migraine frequency with change in phosphene threshold of transcranial magnetic stimulation during levetiracetam treatment. ⋯ Phosphene threshold increased during treatment with levetiracetam. At the 10% significance level, headache frequency and phosphene threshold were negatively correlated.
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To develop and validate a brief questionnaire to screen for menstrual migraine (MM), and to estimate MM prevalence in an obstetrics and gynecology (OB/GYN) setting in a pilot study. ⋯ The MM screener MMAT exhibits sufficient sensitivity and specificity to assess this frequently disabling condition presenting at the OB/GYN office.
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Several studies were carried out to investigate the occurrence of headache attributed to acute stroke in patients with a lifetime history of migraine. ⋯ The high prevalence of headache attributed to stroke in (M+) patients, in a relevant proportion of cases presenting as a sentinel headache, suggests that cerebral ischemia lowers the threshold for head pain more easily in these "susceptible" patients. The most frequent involvement of the brainstem in (M+) patients with ischemic infarction concurs with recent reports that emphasized a greater headache frequency when cerebral infarctions are localized in this structure or deep brain gray matter.
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To examine whether sleep complaints reported by migraineurs can be attributed to comorbid anxiety and/or depression. ⋯ The association between sleep problems and migraine that is not solely explained by comorbid anxiety disorders or depression suggests that sleep problems should be evaluated among people with migraine.