Abstract 215: Risk Factors, Management, and Outcomes Among Pregnant Women with Atrial Fibrillation

Background: Atrial fibrillation and atrial flutter (AF) during pregnancy may confer increased risk of perinatal complications, particularly since pregnancy is a known hypercoagulable and arrhythmogenic state. However, few studies of outcomes among this population exist, and the optimal management strategy is unclear. We sought to determine the risk of adverse outcomes among pregnant women with AF. Methods: In this single-center study, patients with documented AF in pregnancy (1/1998-9/2018) were retrospectively analyzed. Charts were manually reviewed for demographics, comorbidities, underlying cardiac disease, and medications. Outcomes included arrhythmias, need for cardioversion, and thromboembolic events. Results: Of 66 pregnant women with documented AF, 20 (30.3%) had a diagnosis of AF prior to pregnancy and 46 (69.6%) had new onset AF during pregnancy or immediately postpartum (within six weeks of delivery). Nine women (13.6%) had persistent AF. Thirty women (45.4%) had valve disease and/or congenital...