Abstract
Whether migraine modifies after spontaneous cervical artery dissection (sCeAD) more than after other stroke etiologic subtypes has never been adequately investigated. In the setting of the Italian Project on Stroke in Young Adults (IPSYS), we compared the course of migraine before and after acute brain infarct in a group of migraine patients with sCeAD and a group of migraine patients whose ischemia was due to a cause other than CeAD (non-CeAD IS), matched by sex, age (± 3 years), and migraine subtype.We applied linear mixed models to evaluate pre-event vs post-event changes and differences between sCeAD and non-CeAD IS patients. Eighty-seven patients per group (migraine without aura/migraine with aura, 67/20) qualified for the analysis. After the acute event, migraine headaches disappeared in 14.0% of CeAD patients vs 0.0% of non-CeAD IS patients (p ≤ 0.001). Migraine frequency (patients suffering at least 1 attack, from 93.1 to 80.5%, p = 0.001), pain intensity (from 6.7 ± 1.7 to 4.6 ± 2.6 in a 0 to 10 pain scale, p ≤ 0.001), and use of acute anti-migraine medications (patients taking at least 1 preparation, from 81.6 to 64.4%, p = 0.007) also improved significantly after CeAD as opposed to that observed after non-CeAD IS. The spontaneous improvement of migraine after sCeAD reinforces the hypothesis of a pathogenic link between the two conditions.
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