Prospective analysis of 30-day safety and performance of transfemoral transcatheter aortic valve implantation with Edwards SAPIEN XT versus SAPIEN prostheses

Hélène Eltchaninoff, Eric Durand, Bogdan Borz, Matthieu Godin, Christophe Tron, Pierre-Yves Litzler, Jean-Paul Bessou, Karim Bejar, Chiara Fraccaro, Carlos Sanchez-Giron, Jean-Nicolas Dacher, Fabrice Bauer, Alain Cribier
Archives of Cardiovascular Diseases 2012, 105 (3): 132-40

BACKGROUND: A new generation of balloon-expandable valves (e.g. Edwards SAPIEN XT) enables the use of a decreased sheath size using the NovaFlex™ delivery system for transfemoral transcatheter aortic valve implantation (TAVI). However, there are few data analysing the efficacy and safety of this new prosthesis.

AIMS: To evaluate periprocedural and 30-day clinical outcomes using the Edwards SAPIEN XT compared with the first-generation Edwards SAPIEN prosthesis.

METHODS: Between May 2006 and October 2011, consecutive high-risk or non-operable patients with severe aortic stenosis had TAVI using an Edwards SAPIEN or SAPIEN XT prosthesis. Valve Academic Research Consortium endpoints were used.

RESULTS: Of 250 patients who underwent TAVI, 190 were performed transfemorally (78 SAPIEN and 112 SAPIEN XT). Transfemoral access was possible more often using SAPIEN XT (112/123 [91.1%] vs 78/127 [61.4%]; P<0.001). Mean logistic EuroSCORE was significantly lower in the SAPIEN XT group (18.1±11.0% vs 27.3±11.1%; P<0.0001), and the iliofemoral artery minimal lumen diameter was smaller (6.7±1.2 vs 8.5±1.3mm; P<0.0001). Device success was similar in both groups (95.5% for SAPIEN XT and 93.6% for SAPIEN), as was the 30-day combined safety endpoint (15.2% and 17.9%, respectively). At 30days, prosthesis performance was similar in both groups.

CONCLUSIONS: Short-term safety and performance analysis of the latest generation of balloon-expandable valve, the SAPIEN XT, seem similar to the previous generation. However, transfemoral implantation is more often possible, related to sheath size reduction.

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