Safety and Efficacy of Balloon-Expandable Transcatheter Aortic Valve Implantation in Patients with Extreme Horizontal Aorta.

Nakase, Masaaki; Tomii, Daijiro; Praz, Fabien; Stortecky, Stefan; Lanz, Jonas; Reineke, David; Windecker, Stephan; Pilgrim, Thomas (2024). Safety and Efficacy of Balloon-Expandable Transcatheter Aortic Valve Implantation in Patients with Extreme Horizontal Aorta. The Canadian journal of cardiology, 40(3), pp. 402-404. Elsevier 10.1016/j.cjca.2023.12.019

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Anatomical risk assessment based on pre-procedural multidetector computed tomography (MDCT) is key to preprocedural planning in patients undergoing transcatheter aortic valve implantation (TAVI). Horizontal aorta, is a challenging anatomical feature for device delivery and proper prosthesis positioning. Previous studies have suggested that the use of balloon-expandable valve (BEV) is preferred in patients with horizontal aorta1,2. However, few studies have adequately included patients with extreme horizontal aorta (≥70°), for which manufacturers have issued a warning2,3. Thus, we sought to investigate the impact of extreme horizontal aorta on procedural outcomes in patients undergoing TAVI with BEV.

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