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Is Chiari type I malformation a reason for chronic daily headache
Carmiña Riveira1, Julio Pascual
1Service of Neurology, University Hospital, Paseo de San Vicente 58-182, 37007 Salamanca, Spain.
Current Pain and Headache Reports
|January 12, 2007
Summary
Chiari type I malformation is linked to cough headaches but not typically chronic daily headaches. Further investigation for hydrocephalus or low intracranial pressure is recommended for patients with tonsillar herniation experiencing daily headaches.
Area of Science:
- Neurology
- Neurosurgery
- Headache Medicine
Background:
- Chiari type I malformation involves cerebellar tonsillar herniation.
- Headaches are a common symptom, but their specific association with this malformation requires clarification.
Purpose of the Study:
- To review the spectrum of headaches associated with Chiari type I malformation.
- To analyze the potential of Chiari type I malformation as a cause of chronic daily headache (CDH).
Main Methods:
- Literature review of studies on Chiari type I malformation and headache.
- Analysis of existing data regarding headache types and their correlation with Chiari type I malformation.
Main Results:
- Chiari type I malformation is definitively associated with cough headache.
- A clear association between Chiari type I malformation and chronic daily headache (CDH) is not supported by current evidence.
- Basilar migraine-like cases are a rare exception in primary episodic headaches.
Conclusions:
- MRI for Chiari type I malformation is indicated for Valsalva-aggravating headaches or cervicogenic features.
- Patients with tonsillar herniation and daily headaches should be evaluated for hydrocephalus and low intracranial pressure syndrome.
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