Cephalalgia : an international journal of headache
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Occipital nerve stimulation (ONS) results in beneficial outcomes, with marked pain relief, in otherwise intractable chronic migraine (CM) and chronic cluster headache (CCH). Some studies have reported that a positive response to occipital nerve block (ONB) administered prior to ONS predicts a positive response to ONS. However, other studies concerned with proper patient selection claimed no predictive value for ONB. The aim of this study was to re-evaluate the usefulness and predictive value of ONB prior to ONS. ⋯ Current literature suggests that ONB does not sufficiently predict ONS responsiveness in patients with refractory CM and CCH; this important issue requires further investigation.
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Randomized Controlled Trial
The influence of ictal cutaneous allodynia on the response to occipital transcutaneous electrical stimulation in chronic migraine and chronic tension-type headache: a randomized, sham-controlled study.
The objective of this article is to determine whether cutaneous allodynia (CA) influences the response to treatment with occipital transcutaneous electrical stimulation (OTES) in chronic migraine (CM) and chronic tension-type headache (CTTH). ⋯ Severe CA is associated with decreased response to treatment with OTES in patients with CM and CTTH.
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Comparative Study
Field-testing of the ICHD-3 beta diagnostic criteria for classical trigeminal neuralgia.
We aimed to field-test the beta version of the third edition of the International Classification of Headache Disorders (ICHD-3 beta) diagnostic criteria for classical trigeminal neuralgia (TN). The proposed beta draft of the 11th version of the International Classification of Diseases (ICD-11 beta) is almost exclusively based on the ICHD-3 beta classification structure although slightly abbreviated. We compared sensitivity and specificity to ICHD-2 criteria, and evaluated the needs for revision. ⋯ ICHD-3 beta was not significantly different from ICHD-2 and both lacked sensitivity. A modification of the criteria improved the sensitivity greatly and is proposed for inclusion in the forthcoming ICHD-3.
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Published data from 1998 revealed that most patients treated for migraine in an emergency department received opioids. Over the intervening years, a large body of evidence has emerged demonstrating the efficacy and safety of non-opioid alternatives. Expert opinion during these years has cautioned against use of opioids for migraine. Our objectives were to compare current frequency of use of various medications for acute migraine in US emergency departments with use of these same medications in 1998 and to identify factors independently associated with opioid use. ⋯ In spite of recommendations to the contrary, opioids are still used in more than half of all emergency department visits for migraine. Though use of meperidine has decreased markedly between 1998 and 2010, it has largely been replaced by hydromorphone. Opioid use in migraine visits is independently associated with prior visits to the same emergency department in the previous 12 months.
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Cluster headache is an excruciating unilateral headache with autonomic symptoms whose periodic nocturnal activity, which interrupts sleep, has been attributed to a hypothalamic generator. ⋯ This case documents two new aspects of cluster headache. It suggests that repeated nocturnal awakenings can be a warning sign of an impending cluster period, a finding that may have therapeutic implications, and also that hypothalamic activation may begin several days before trigemino-autonomic symptoms, thus behaving as a true bout generator.