ArticleHeadache2025
Migraine and spontaneous coronary artery dissection: A retrospective case-control study.
Article in Headache, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
objectiveThe objective was to determine if migraine is independently associated with a greater odds of spontaneous coronary artery dissection (SCAD) in a case-control study.
backgroundThere is growing evidence that migraine is associated with SCAD, a non-atherosclerotic, non-traumatic cause of myocardial infarction. However, few studies have examined the independent association between migraine and SCAD.
methodsA total of 1295 SCAD cases and 1291 (1:1) age, sex, and race/ethnicity matched controls presenting to the Boston, Massachusetts area, using the International Classification of Diseases ninth revision and 10th revision codes from our Research Patient Data Registry, were identified between the years 1990 and 2022. Adjusted odds ratios (aORs) and 95% confidence intervals (CIs) were calculated. For mediation, total effects, natural direct, and indirect effects were estimated using causal inference. Receiver operating characteristic (ROC) curves and area under the curve (AUC) was used to determine predictive power. Statistical significance was defined as p < 0.05.
resultsAdjusting for age, sex, and race/ethnicity, the data demonstrated an almost two-fold increased odds of SCAD in patients with migraine (aOR 1.96, 95% CI 1.48-2.6; p < 0.001). There was no effect of aura phenotype on this association. Fibromuscular dysplasia (FMD) was found only in patients with SCAD (n = 133). After accounting for vascular risk factors, there was no longer an independent association between migraine and SCAD (aOR 0.90, 95% CI 0.63-1.29; p = 0.568). Using a model that adjusted for only demographic variables produced a ROC curve with the lowest predictive power (AUC 0.55) for SCAD, while the vascular risk factor-adjusted model had a higher predictive power (AUC 0.83). Hypertension appeared to mediate some of the effect of migraine on SCAD (proportion of effect mediated 0.70). FMD was highly associated with an increased risk of SCAD. There remained no independent association between SCAD and migraine when FMD was included in the model.
conclusionsThe migraine-SCAD association can be partially attributed to the connection between migraine and vascular comorbidities including hypertension and FMD.
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