Objective:The goal of this study was to compare the cyanoacrylate venous sealing systems VenaSeal ™ and VariClose ® in the treatment of superfi cial venous insuffi ciency. Methods: A single-centre retrospective analysis on patients treated between April 2018 and April 2022 with cyanoacrylate adhesives for lower limb superfi cial truncal vein insuffi ciency was performed. Results: The VariClose ® system was used in 27 patients (30 veins) and the VenaSeal ™ system in 97 patients (125 veins). The median follow-up periods for patients treated with VariClose ® and VenaSeal ™ systems were 267 (IQR 223) and 201 (IQR 280) days, respectively. At one year, recanalization occurred in 11 veins treated with the VariClose ® system and 5 veins treated with the VenaSeal ™ system. The occlusion rates estimated by the Kaplan-Meier method at 30, 90, 180, and 360 days were 100%, 96%, 83%, and 42% for veins treated with the VariClose ® system and 100%, 98%, 96%, and 91% for veins treated with the VenaSeal ™ system (p <0.01). Conclusions: The VenaSeal ™ system had signifi cantly better occlusion rates than the VariClose ® system.