Key clinical point: The risk for hypertensive disorders of pregnancy (HDOP) was significantly higher in women who experienced migraine before 20 weeks of pregnancy, with the risk being most prominent among women with migraine during the first trimester and those who used migraine medications.
Major finding: The risk for HDOP was significantly higher in women with vs without pre-pregnancy migraine (adjusted risk ratio [aRR] 1.17; 95% CI 1.09-1.26), with the risk being the highest in those with migraine that persisted during the first trimester (aRR 1.84; 95% CI 1.35-2.50) and in those who received migraine-specific medication (aRR 1.50; 95% CI 1.15-1.97).
Study details: Findings are from a population-based prospective cohort study including 1,049,839 women without a history of cardiovascular diseases or hypertension who had liveborn or stillborn singleton deliveries, of which 127,295 women had pre-pregnancy migraine.
Disclosures: This study was supported by the National Institute of Child Health and Human Development, US National Institutes of Health. The authors declared no conflicts of interest.
Source: Crowe HM et al. Migraine and risk of hypertensive disorders of pregnancy: A population-based cohort study. Cephalalgia. 2023;43(4):3331024231161746 (Mar 19). Doi: 10.1177/03331024231161746