Abstract:
:The clinical science of migraine headache continues to evolve. Theories of the pathophysiology of migraine have progressed from the early vascular basis of migraine to more complex current theories that emphasize the centrality of neuronal dysfunction. The most recently articulated theory of migraine is the central sensitization hypothesis, which proposes that altered processing of sensory input in the brainstem, principally the trigeminal nucleus caudalis, could account for many of the temporal and symptomatic features of migraine, as well as its poor response to triptan therapy when such treatment is initiated hours after the onset of pain. Both preclinical and clinical data support the central sensitization theory. A critical clinical implication of this theory is that drugs that are capable of either aborting or arresting the process of central sensitization, most prominently dihydroergotamine, may have a unique role in the treatment of migraine. An additional, and highly practical, implication is based upon the finding that cutaneous allodynia-pain arising from innocuous stimulation of the skin, as in hair brushing or the application of cosmetics-is an easily identifiable marker of central sensitization. Thus, the presence or absence of cutaneous allodynia can be integrated into the routine clinical assessment of migraine and utilized as a determinant of treatment. Future basic and clinical research on central sensitization is likely to be of ongoing importance to the field.
journal_name
Headachejournal_title
Headacheauthors
Dodick D,Silberstein Sdoi
10.1111/j.1526-4610.2006.00602.xsubject
Has Abstractpub_date
2006-11-01 00:00:00pages
S182-91eissn
0017-8748issn
1526-4610pii
HED602journal_volume
46 Suppl 4pub_type
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