Migraine and spontaneous coronary artery dissection: A retrospective case-control study
Abstract
OBJECTIVE: The objective was to determine if migraine is independently associated with a greater odds of spontaneous coronary artery dissection (SCAD) in a case-control study.
BACKGROUND: There 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.
METHODS: A 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.
RESULTS: Adjusting 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…
How strong is the evidence?
Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 133 participants or records.
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