n South African Medical Journal - Neuroimaging in migraine : correspondence
|Article Title||Neuroimaging in migraine : correspondence|
|© Publisher:||Health and Medical Publishing Group (HMPG)|
|Journal||South African Medical Journal|
|Affiliations||1 The Headache Clinic and Specialist Migraine Unit|
|Publication Date||May 2016|
To the Editor: In a recent paper published in Cephalalgia, the official journal of the American Headache Society, Callaghan et al. reported on information extracted from more than 50 million headache visits in the USA. This indicated that as many as 9.8% of patients with a diagnosis of migraines underwent neuroimaging - either magnetic resonance angiography or computed tomography. After removing those patients with 'red flags' on neurological evaluation, the percentage undergoing neuroimaging decreased from 9.8% to 8.3%. This was contrary to the guidelines originally laid down by Frishberg, and later confirmed in a number of studies. These guidelines suggested that for migraines, there was no difference in the incidence of clinically meaningful pathology to the incidence in the general population, and that neuroimaging is unnecessary.
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