Thursday, November 5, 2009

Middle Meningeal Artery Dilatation in Migraine

Headache: The Journal of Head and Face Pain

Volume 49 Issue 10, Pages 1541 - 1543
Published Online: 27 Jul 2009
Copyright © 2009 American Headache Society

Brief Communication Elliot ShevelBDS, Dip MFOS, MB BCh
From the Headache Clinic, Houghton, South Africa.
Correspondence to E. Shevel, The Headache Clinic, Suite 243, Private Bag X2600, Houghton 2041, South Africa.
Conflict of Interest: None
ABSTRACT
Objective.—To show that migraine pain is not related to dilatation of the dural meningeal arteries.
Background.—The origin of the pain in migraine has not yet been adequately explained and remains the subject of vigorous debate. Current theories implicate changes in the trigeminovascular system, which is defined as comprising the large intracranial vessels, and in particular, the dural meningeal vessels, the dura mater, and their neural connections.
Methods.—The anatomical relationships of the dural meningeal arteries to the dura mater and the inner surface of the calvarium are described.
Results.—The dural meningeal arteries lie in grooves in the inner table of the calvarium, are encased in the unyielding fibrous dura mater, and are consequently unable to dilate.
Conclusion.—The pain of migraine is not related to dilatation of the dural meningeal arteries.

Accepted for publication June 15, 2009.

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