Abstract DP181: Lower frequency of ischemic stroke and better functional outcome in patients with spontaneous cervical artery dissection and history of migraine: secondary analysis of the STOP-CAD study
Abstract
Introduction:
Migraine has been reported to be associated with an increased risk of spontaneous cervical artery dissection (sCeAD), a leading cause of ischemic stroke, particularly in young adults. Migraine may increase vulnerability to ischemia, making brain tissue more susceptible to ischemic injury. Nevertheless, migraine patients have been reported to have higher Calcitonin Gene-Related Peptide (CGRP) levels which has a vasodilatory effect that may protect against ischemia.
We aim to determine if a history of migraine influences clinical presentation and outcome of sCeAD.
Methods:
We performed a post-hoc analysis of the STOP-CAD registry, a large international multicenter study of patients with sCeAD. Clinical, demographic, and imaging data were compared between patients with and without history of migraine applying statistical tests as appropriate for continuous variables (t-tests) and for categorical variables (Chi-square/Fisher’s exact test). Logistic regression, Kaplan-Meier survival analysis, and Cox regression with clustered standard errors were used to assess associations between migraine, sCeAD features and outcome adjusting for potential confounders.
Results:
STOP-CAD included 668 participants (16.6%) with a history of migraine and 3,355 (83.4%) without migraine. Patients with migraine were younger and more frequently female. In a univariate analysis, patients with migraine compared to patients without migraine had significantly fewer presentations with ischemic…
How strong is the evidence?
Evidence Hub reads this as a secondary / pooled analysis, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 668 participants or records.
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