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Curr Pain Headache Rep · Feb 2007
ReviewIs Chiari type I malformation a reason for chronic daily headache.
- Carmiña Riveira and Julio Pascual.
- Service of Neurology, University Hospital, Paseo de San Vicente 58-182, 37007 Salamanca, Spain.
- Curr Pain Headache Rep. 2007 Feb 1; 11 (1): 53-5.
AbstractThis article briefly reviews the spectrum of headaches associated with Chiari type I malformation and specifically analyzes current data on the possibility of this malformation as an etiology for some cases of chronic daily headache (CDH). Chiari type I malformation is definitely associated with cough headache and not with primary episodic headaches, with the rare exception of basilar migraine-like cases. With regard to CDH, there is no clear evidence supporting an association with this malformation. An MRI study would be justified only in patients showing either a Valsalva-aggravating component or cervicogenic features. Hydrocephalus and low intracranial pressure syndrome should be ruled out in patients showing tonsillar herniation in an MRI study and consulting due to daily headache.
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