Migraine, low-dose combined hormonal contraceptives, and ischemic stroke in young women. a systematic review and suggestions for future research
Introduction: Migraine and combined hormonal contraceptives (CHCs) increase the risk of ischemic stroke in young women; however, the contribution of low-dose (<50 μg ethinylestradiol) CHCs to the risk of ischemic stroke in young women with migraine is not well defined. Areas covered: The authors performed a systematic review of observational studies indexed in PubMed and Scopus from inception to 22 May 2019, reporting the effect sizes of ischemic stroke in women with migraine using low-dose CHCs compared with those without migraine not using CHCs.