Headache
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Randomized Controlled Trial Clinical Trial
Dextroamphetamine pilot crossover trials and n of 1 trials in patients with chronic tension-type and migraine headache.
To examine the preventive effects of dextroamphetamine in select small groups of patients with chronic tension-type and migraine headache. ⋯ Dextroamphetamine had real preventive effects on chronic tension-type and migraine headaches in some subjects. These results should encourage other investigators to study its effects on these headaches.
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Verapamil is currently the best available prophylactic drug for patients experiencing cluster headaches (CHs). Published papers usually state 240 to 480 mg taken in three divided doses give good results, ranging from 50% to 80%; others mention higher doses--720, even 1200 mg per day. In clinical practice we found we needed to adapt dosage to individual's time of attacks, in particular giving higher doses before going to bed to suppress severe nocturnal episodes. A few only required 120 mg daily. We therefore evolved a scheme for steady and progressive drug increase until satisfactory control had been achieved. ⋯ Providing the dosage for each individual is adequate, preventing CH with verapamil is highly effective, taken three (occasionally with higher doses, four) times a day. In the majority (94%) with episodic CH steady dose increase under supervision, totally suppressed attacks. However in the chronic variety only 55% were completely relieved, 69% men, but only 20% women. In both groups, for those with partial attack suppression, additional prophylactic drugs or acute treatment was necessary.
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Comparative Study
Somatic symptoms in headache patients: the influence of headache diagnosis, frequency, and comorbidity.
Mood disorders of anxiety and depression are well known to be comorbid with primary headache disorders. Less is known of the comorbidity of other somatic symptoms with headache. ⋯ Associated somatic symptoms are more common in patients with chronic migraine and CDH, with more frequent severe headaches, and with associated anxiety or depression. Patients with episodic migraine have similar somatic prevalence as a previously studied primary care population. The spectrum of headache disorders may be characterized as showing increasing somatic prevalence as headaches, particularly severe headaches, become more frequent.
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To examine the occurrence of dynamic mechanical (brush) allodynia (BA) in patients with cluster headache (CH). ⋯ This is the first report on the occurrence of cutaneous allodynia in CH. The presence of BA in CH may be related to CH type (episodic vs. chronic) and to the duration of disease. These results support the concept that allodynia in CH may result from a time-dependent process of neuronal sensitization.
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Comparative Study
Chemokine levels in the jugular venous blood of migraine without aura patients during attacks.
To investigate changes in the levels of calcitonin gene-related peptide and its intracellular messenger cyclic adenosine monophosphate in serial samples of internal jugular blood taken from migraine patients without aura assessed during attacks, and to assess their relationship with the levels of IL-8, MCP-1, and RANTES in the same samples. ⋯ The present study confirms previous findings of an increase in calcitonin gene-related peptide in internal jugular venous blood of migraine without aura patients during attacks. The transient increase in the levels of IL-8 concurs with the results of recent experimental research showing a calcitonin gene-related peptide-induced activation of IL-8 gene expression, but not RANTES and MCP-1, via the transcriptional factor AP-2, which mediates transduction in response to cyclic adenosine monophosphate. Although IL-8 is transiently increased during migraine attacks, an accumulation of leukocytes secondary to neurogenic inflammation is unlikely, as it is for other inflammatory events, because they are self limiting. Other events, including nitric oxide production, may contribute to counteract meningeal transvascular leukocyte migration during migraine attacks, as suggested by the model of sterile inflammation.