Impact of transradial versus transfemoral access for preprocedural coronary angiography on TAVR-associated complications.

Background: Vascular injury and bleeding complications remain frequent after transcatheter aortic valve replacement (TAVR). Whether the access-site of preprocedural coronary angiography (CAG) affects TAVR-related complications is not known. The aim of this study was to evaluate the impact of transradial (TRA) versus transfemoral access (TFA) for preprocedural CAG on outcomes in patients undergoing subsequent TAVR.
Methods: The study cohort included 1002 patients undergoing transfemoral TAVR, of whom 39.4% (395/1002) had undergone radial and 60.6% (607/1002) femoral access for pre-TAVR CAG. The primary endpoint was a composite of 30-day mortality and major vascular complications after TAVR. Key secondary endpoints included VARC-3-defined complications.
Results: The primary endpoint occurred less frequently in patients with prior TRA (3.3%) as compared to patients with prior TFA (6.3%, p = 0.04), which was mainly driven by significantly lower rates of major vascular complications (0.8% vs 2.5%, p = 0.05). Moreover, incidences of periprocedural access-related vascular injury and unplanned endovascular interventions were lower in TRA patients (13.2% vs 18.0%, p = 0.05). The rate of major bleeding tended to be lower in the TRA (1.5%) as compared to the TFA group (3.5%) but was not significantly different (p = 0.07). Moreover, the rate of life-threatening bleeding was comparable between both groups (0.5% vs 0.8%, p = 0.71).
Conclusion: Transradial access for preprocedural CAG was associated with significantly lower rates of vascular complications following subsequent TAVR as compared to transfemoral access. However, despite the tendency to lower major bleedings with transradial access, no significant association was detectable between the access-site of coronary angiography and TAVR-related bleeding complications.
Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Georg Nickenig reports financial support was provided by German Research Foundation. Drs. Grube, Zimmer, Adam, and Nickenig have received speaker honoraria and research grants from Abbott, Abiomed, Medtronic, Boston Scientific, and Edwards Lifesciences. Dr. Veulemans has received speaker and/or study honoraria from Edwards Lifesciences, Medtronic, and Boston Scientific. Dr. Kelm has received institutional grant support and/or personal fees from Philips, Abbott, Medtronik, Boston Scientific, Mars, Boehringer Ingelheim, Daiichi-Sanyko GmbH, Amgen, Ancora Heart, and B. Braun. Dr. Grube is a proctor for Boston Scientific and Medtronic. The other authors report no conflicts of interest.
(© 2023 The Authors.)