Outcomes of vascular closure devices for femoral venous hemostasis following catheter ablation of atrial fibrillation.

Introduction: Access site complications remain common following atrial fibrillation (AF) catheter ablation. Femoral vascular closure devices (VCDs) reduce time to hemostasis compared with manual compression, although large‐scale data comparing clinical outcomes between the two approaches are lacking. Methods: Two cohorts of patients undergoing AF ablation were identified from 36 healthcare organizations using a global federated research network (TriNetX): those receiving a VCD for femoral hemostasis, and those not receiving a VCD. A 1:1 propensity score matching (PSM) model based on baseline characteristics was used to create two comparable cohorts. The primary outcome was a composite of all‐cause mortality, vascular complications, bleeding events, and need for blood transfusion. Outcomes were assessed during early (within 7 days of ablation) and extended follow‐up (within 8–30 days of ablation). Results: After PSM, 28 872 patients were included (14 436 in each cohort). The primary composite outcome occurred less frequently in the VCD cohort during early (1.97% vs. 2.60%, odds ratio (OR) 0.76, 95% confidence interval (CI) 0.65–0.88; p <.001) and extended follow‐up (1.15% vs. 1.43%, OR 0.80, 95% CI 0.65–0.98; p =.032). This was driven by a lower rate of vascular complications during early follow‐up in the VCD cohort (0.83% vs. 1.26%, OR 0.66, 95% CI 0.52–0.83; p <.001), and fewer bleeding events during early (0.90% vs. 1.23%, OR 0.73, 95% CI 0.58–0.92; p =.007) and extended follow‐up (0.36% vs. 0.59%, OR 0.61, 95% CI 0.43–0.86; p =.005). Conclusion: Following AF ablation, femoral venous hemostasis with a VCD was associated with reduced complications compared with hemostasis without a VCD. [ABSTRACT FROM AUTHOR]