• Cephalalgia · Apr 2009

    Review Case Reports

    Chronic migraine and medication overuse headache: clarifying the current International Headache Society classification criteria.

    • C Sun-Edelstein, M E Bigal, and A M Rapoport.
    • The New York Headache Center, New York, NY 10021, USA. drsun@nyheadache.com
    • Cephalalgia. 2009 Apr 1; 29 (4): 445-52.

    AbstractDespite the recent advances in the understanding and classification of the chronic daily headaches, considerable controversy still exists regarding the classification of individual headaches, including chronic migraine (CM) and medication overuse headache (MOH). The original criteria, published in 2004, were difficult to apply to most patients with these disorders and were subsequently revised, resulting in broader clinical applicability. Nonetheless, they remain a topic of debate, and the revisions to the criteria have further added to the confusion. Even some prominent headache specialists are unsure which criteria to use. We aimed to explain the nature of the controversies surrounding the entities of CM and MOH. A clinical case will be used to illustrate some of the problems faced by clinicians in diagnosing patients with chronic daily headache.

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