The journal of headache and pain
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The thalamus exerts a pivotal role in pain processing and cortical excitability control and a previous voxel-based morphometry study confirmed increased volume in bilateral thalamus in medication-overuse headache (MOH). The aim of this study is to investigate altered thalamic subnuclei volume in MOH compared with normal controls, and to evaluate the relationship of each thalamic subnuclei volume with the clinical variables. ⋯ Increased gray matter volume in the whole thalamus and all the thalamus subnuclei may reflect central sensitization and higher-order of pain alteration in MOH. These structural changes in the thalamus may also be influenced by mood disturbances related to the MOH.
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Randomized Controlled Trial Comparative Study
Single-dose botulinum toxin type a compared with repeated-dose for treatment of trigeminal neuralgia: a pilot study.
Several RCT studies including ours, seem to prove the role of Botulinum toxin type A (BTX-A) in the treatment of trigeminal neuralgia (TN), but no standardized dosing regimen has been established. In our study, we compare two different methods of administration: single-dose or repeated-dose strategy which was most frequently applied over the years in our centre. ⋯ The single- and repeated-dosing BTX-A regimens were largely comparable in efficacy and safety. This study suggests that repeated dosing has no advantage over single dosing of BTX-A for TN. Dosing should be adjusted for the individual patient.
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Comparative Study
Symptoms and clinical parameters of pediatric and adolescent migraine, by gender - a retrospective cohort study.
The available data on gender differences in clinical migraine parameters among pediatric patients are based on relatively few studies, which did not use the current version of the International Classification of Headache Disorders (ICHD) of the International Headache Society. The aim of the present study was to compare between males and females, demographic and clinical characteristics of children and adolescents with migraines diagnosed according to the ICDIII-beta version. ⋯ Female children and adolescents with migraine treated in a tertiary pediatric headache clinic were characterized by a higher rate of chronic migraine and migraine with aura, a lower rate of vomiting, and older age at onset relative to males. These findings might be influenced by the better description of migraine symptoms by females owing to their better verbal ability.