Midterm Outcomes of the BeGraft and BeGraft Plus Bridging Covered Stents for Fenestrated and Branched Endovascular Aneurysm Repair.

Abstract

The aim of this study was to report outcomes of the BeGraft and BeGraft Plus as bridging covered stents in fenestrated and branched endovascular aneurysm repair (FB-EVAR). Patients treated and followed in two institutions receiving at least one BeGraft or BeGraft Plus as bridging covered stent between January 2018 and July 2023 were included. A total of 765 target vessels (TVs) in 281 patients were aimed to be bridged with the BeGraft or BeGraft Plus. Target vessel technical success was 99.5% (761/765). Estimated TV patency at one and two years was 98.5 ± 0.5% and 96.7 ± 0.9%, respectively, with no difference between fenestrations and branches. Estimated freedom from TV related endoleak at one and two years was 98.5 ± 0.5% and 97.9 ± 0.6%, respectively. Estimated freedom from endoleak at two years was lower for TVs targeted with branches compared with TVs targeted with fenestrations (94.2 ± 1.9% vs. 99.7 ± 0.3%, respectively; p < .001). Estimated freedom from TV related re-intervention at one and two years was 97.7 ± 0.6% and 97.1 ± 0.7%, respectively. Estimated freedom from TV related re-intervention at two years was lower for TVs targeted with branches compared with TVs targeted with fenestrations (93.1 ± 2.0% vs. 99.0 ± 0.5%, respectively; p < .001). Estimated freedom from TV instability at one and two years was 96.8 ± 0.7% and 94.5 ± 1.1%, respectively. Estimated freedom from TV instability at two years was 96.0 ± 1.3% for fenestrations and 91.2 ± 2.2% for branches (p = .003). The BeGraft and BeGraft Plus covered stents showed good midterm outcomes as bridging covered stents in FΒ-EVAR. Branches showed higher instability rates compared with fenestrations. Branches showed similar patency rates to fenestrations.