[The importance of chronic migraine in a general neurology service]

Chronic migraine is a primary headache that is difficult to treat and has an important impact on the patient's quality of life. The international headache classification recently modified the criteria for chronic migraine and therefore few studies have been conducted that analyse groups according to these new criteria. AIM. To analyse a group of patients with chronic migraine who were referred to a general neurology service.

The first 100 patients with migraine were selected. Researchers established and analysed a number of subgroups of patients with episodic, chronic or chronic migraine with probable headache due to medication abuse, in accordance with the International Headache Society (IHS) headache classification and its revised version from 2006.

Of the total sample of 738 new patients, 100 (13.5%) suffered from migraines and of these 100 new patients with migraine 42 (5.6% of the total series) satisfied criteria for chronic migraine and 15 patients with chronic migraine met the criteria for probable headache due to medication abuse. Before visiting the neurology service, only 41% had been diagnosed as suffering from migraine, 38% had received no information about this condition, only 17% took triptans for symptomatic relief and 23% had followed some kind of preventive treatment.

One notable finding was the importance of episodic and chronic migraine in a general neurology service, on applying the recent IHS criteria. A high percentage of patients with chronic migraine who were referred to the neurology service have not been diagnosed or given any information or proper treatment; an elevated degree of self-medication and medication abuse also exists. Preventive treatment and triptans in cases of intense migraines are still not commonly used in primary care.