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  • 1
    Electronic Resource
    Electronic Resource
    Assessment of peripheral vascular effects of antimigraine drugs in humans (1995)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 15 (1995), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The vascular beds of the forearm and finger can be used to study the peripheral effects of antimigraine drugs under normal and pathologic circumstances. We have investigated the novel antimigraine drug sumatriptan, a selective agonist for 5HT1 receptors. Its antimigraine effect may be attributed, at least in part, to constriction of cranial arteriovenous anastomoses (AVAs). In assessing the peripheral vascular effects of sumatriptan we used a forearm and finger blood flow model. Forearm blood flow (FBF) is mainly determined by resistance vessels, whereas finger blood flow (FiBF) mainly involves skin vessels, which contain many AVAs. Changes in FBF and FiBF can be assessed using venous occlusion plethysmography. Changes in AVA flow are determined by measuring the patency of the vascular beds of the forearm and hand to well-defined radiolabelled microspheres, which are injected into the brachial artery. We report the effects of sumatriptan on FBF, FiBF and AVA flow when administered into the brachial artery of healthy volunteers, and discuss the peripheral vascular effects of therapeutic doses of sumatriptan when given subcutaneously in migraine patients during and between attacks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1995.1504288.x
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  • 2
    Electronic Resource
    Electronic Resource
    Oral sumatriptan: effect of a second dose, and incidence and treatment of headache recurrences (1994)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 14 (1994), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Oral sumatriptan in a dose of 100 mg aborts about 60% of migraine attacks within 2 h, but the headache may recur within 24 h. We investigated: (i) the incidence of headache recurrence after oral sumatriptan, (ii) whether a second tablet of sumatriptan at 2 h increases initial efficacy and/or (iii) prevents headache recurrence and (iv) whether a further tablet of sumatriptan treats headache recurrence. In a randomized, parallel-group clinical trial, 1246 patients treated one to three migraine attacks (with or without aura) with 100 mg oral sumatriptan. Two hours later they all took a double-blind randomized second tablet of sumatriptan (group I) or placebo (group II). Patients who initially improved, but then experienced headache recurrence took a further double-blind randomized tablet of sumatriptan or placebo. Proportions of patients who improved from moderate/severe headache to mild/none were similar in groups I and II at 2 h (55 vs 56%) and 4 h (80 vs 77%). Incidences of headache recurrence (moderate/severe-any grade of headache) and median times to headache recurrence were also similar: 22-32% at 16 h in group I and 25-33% at 16.5 h in group II. Sumatriptan was superior to placebo in treating headache recurrence: 74 vs 49% (p = 0.017) in group I and 70 vs 30% (p = 0.0001) in group II. Thus, one-fourth of patients experience headache recurrence at about 16 h after successful treatment of a migraine attack with 100 mg oral sumatriptan. A second tablet of sumatriptan at 2 h does not increase initial efficacy and neither prevents nor delays headache recurrence. A further tablet of sumatriptan is, however, highly effective in treating headache recurrence. All dose regimens were well tolerated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1994.1405330.x
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  • 3
    Electronic Resource
    Electronic Resource
    Plasma interleukin-1, tumour necrosis factor and hypothalamic-pituitary-adrenal axis responses during migraine attacks (1991)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 11 (1991), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: To evaluate systemic cytokine and hypothalamic-pituitary-adrenal axis responses in migraine, we measured plasma levels of tumour necrosis factor, interleukin-1, adrenocorticotropic hormone, and cortisol, as well as body temperature during and between attacks in 20 migraine patients. We found no evidence of systemic rise of cytokines during migraine attacks. Plasma cortisol and adrenocorticotropic hormone responses were similar to those found to experimentally-induced pain in normal subjects, i.e. elevated cortisol and unchanged adrenocorticotropic hormone levels. Unexpectedly, body temperature tended to be lower during attacks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1991.1102065.x
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  • 4
    Electronic Resource
    Electronic Resource
    Blood flow velocity changes in migraine attacks-a transcranial Doppler study (1991)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 11 (1991), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A pulsed Doppler device was used to measure blood flow velocities in the common carotid artery, the extracranial part of the internal carotid artery, the external carotid artery, the middle cerebral artery, and the anterior cerebral artery in 31 migraineurs without aura (n = 27) and with aura (n = 4), both during and outside an attack. The aims were to compare blood flow velocity during and between migraine attacks and to study asymmetries of the blood flow velocity. Compared with blood flow velocity values obtained in the attack-free interval, blood flow velocity was lower during attacks without aura in both common carotid arteries, but not in the other extra- and intracranial vessels which were examined. However, during attacks of migraine with aura, blood flow velocity tended to be lower in all examined vessels. There were no asymmetries of the blood flow velocity. We suggest that during migraine attacks without aura there is a dissociation in blood flow regulation in the common carotid and middle cerebral arteries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1991.1102103.x
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  • 5
    Electronic Resource
    Electronic Resource
    Transient resolution of headache in giant cell temporal arteritis after sumatriptan (1993)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 13 (1993), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1993.1306426.x
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Chorea and migraine: “Hemicrania choreatica”? (1984)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 4 (1984), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1984.0402119.x
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  • 7
    Electronic Resource
    Electronic Resource
    Risk factors for headache recurrence after sumatriptan: a study in 366 migraine patients (1996)
    USA/Oxford, USA : Blackwell Science Ltd
    Cephalalgia 16 (1996), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Headache recurrence (HR) is the major limitation of sumatriptan in the acute treatment of migraine attacks. The risk of HR is mainly patient dependent. We analyzed, in 366 migraine patients, clinical differences between patients who always have HR and patients who never have HR. We found remarkably few differences. HR more frequently occurred in patients with more severe attacks and longer untreated attack duration; in patients who experienced a sensation of a subclinically ongoing attack, despite headache relief after sumatriptan; and in females, mainly with menstruation-related migraine, most probably due to the more severe and longer lasting attacks these patients suffer, rather than due to hormonal factors. The incidence of HR was, among other factors, not related to the (other) clinical effects of sumatriptan, the timing of administration within the attack, the duration of use of sumatriptan, pharmacokinetic factors, or whether patients were experiencing HR after use of ergot alkaloids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1996.1604264.x
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  • 8
    Electronic Resource
    Electronic Resource
    Familial hemiplegic migraine: a clinical comparison of families linked and unlinked to chromosome 19 (1996)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 16 (1996), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We compared the clinical characteristics of 50 patients from three unrelated families with familial hemiplegic migraine (FHM) linked to chromosome 19, with those of 20 patients from two families with FHM not linked to chromosome 19. We found no significant differences for age at onset, frequency and duration of attacks, duration of the paresis, and occurrence of basilar migraine symptoms. In the linked families, significantly more patients reported unconsciousness during attacks (39%, vs 15%; p〈0.05) and provocation of attacks by mild head trauma (70% vs 40%; p〈 0.05). In one linked family patients also displayed chronic progressive cerebellar ataxia, whereas in one unlinked family benign infantile convulsions occurred in addition to FHM. Interestingly, so far an association with cerebellar ataxia was only described in chromosome 19-linked families. FHM linked to chromosome 19 and FHM unlinked to chromosome 19 do not differ with respect to clinical features.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1996.1603153.x
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  • 9
    Electronic Resource
    Electronic Resource
    Is familial hemiplegic migraine a hereditary form of basilar migraine? (1995)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 15 (1995), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We studied aura symptoms in 83 patients from 6 unrelated families suffering from familial hemiplegic migraine. Fifty-five of the patients reported symptoms that allowed us to categorize them as basilar migraine (BM) patients, in accordance with the International Headache Society (IHS) criteria. In a control group of 33 patients suffering from migraine with aura and 33 patients suffering from migraine without aura, 9 patients complained of vertigo, and only one patient of diplopia during one of her attacks. None of these control patients fulfilled the IHS criteria for BM We suggest that familial hemiplegic migraine and BM may share certain pathophysiologic mechanisms, which may consist of a (genetically determined) disturbance of basilar artery blood flow.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1995.1506477.x
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Intracellular and plasma magnesium in familial hemiplegic migraine and migraine with and without aura (1994)
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 14 (1994), S. 0 
    Details
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Familial hemiplegic migraine (FHM) is an autosomal dominant type of migraine and probably represents the most extreme end of migraine with aura. Reduced magnesium facilitates the development of spreading depression and possibly aura. Cellular magnesium levels are under genetic control. We hypothesized that FHM patients would have significantly reduced intracellular magnesium levels. We determined intracellular and plasma magnesium levels in blood of 38 afflicted and 11 non-afflicted members of three families with FHM and, in 32 migraine patients (9 with and 23 without aura) and 32 age and sex matched healthy controls. We found no significant differences between the magnesium levels in the five study groups. We conclude that reduced blood magnesium is unlikely to be related to migraine pathophysiology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-2982.1994.1401029.x
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