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Unformatted text preview: Cluster Headache Rachel Chacko Definition ● A primary neurovascular primary headache disorder characterized by severe strictly unilateral, typically retro-orbital or periorbital, short-lasting headaches accompanied by prominent cranial facial parasympathetic autonomic features ● The posterior hypothalamic grey matter has been identified as the key area for the basic defect in CH ● More common in men – 3:1 M:F ratio ● Slightly more prevalent in African American population ● More common in third decade of life ● The International Headache Society (IHS) classifies CH by duration as episodic or chronic. ○ Episodic CH occurs in periods lasting from 7 days to 1 year; cluster attacks are separated by pain-free intervals lasting at least 2 weeks. ○ Chronic CH is defined as that occurring for more than 1 year without remission or with remissions lasting less than 2 weeks. It is subdivided into chronic CH from onset and chronic CH evolving from episodic....
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- Fall '10
- Common cold, Headache, mg PO, Cluster Headache, chronic ch, distinctive CH face