Cephalalgia : an international journal of headache
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Data on clinical differences between episodic (eCH) and chronic cluster headache (cCH) and accompanying migraine features are limited. ⋯ Occurrence of CAS and attack frequency, as well as periodic patterns of attacks, are relatively uniform in eCH and cCH. Multiple CAS are not related to pain intensity. Allodynia during cluster attacks is a frequent symptom. The unexpectedly high rate of accompanying migrainous features during cluster attacks cannot be explained by comorbid migraine.
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Few clinic-based studies report an association between migraine and restless legs syndrome (RLS); however, population-based data are unavailable. ⋯ Our data suggest an association between migraine and RLS at the population level. The association is similar for migraine with and without aura and for new reports of migraine during follow-up.
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Vascular dysfunction may be involved in migraine pathophysiology and contribute to the increased risk of ischemic stroke in migraine, particularly in women with migraine with aura (MA). However, data on endothelial function in MA are controversial. Here, we investigated whether systemic endothelial function and arterial stiffness are altered in women with MA, using a novel peripheral arterial tonometry device for the first time. ⋯ Peripheral endothelial function is not impaired in women with MA, but they have greater arterial stiffness. This may contribute to the increased stroke risk in women with MA.
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The objective was to investigate the prevalence and clinical characteristics of sleep apnoea headache. ⋯ Morning headaches were significantly more frequent among participants with OSA than those without OSA. Sleep apnoea headache is less common in the general population than has previously been reported in clinic populations. The relation of hypoxia and morning headache is questioned.