State of Transcatheter Aortic Valve Implantation in Spain Versus Europe and Non-European Countries

Background: Transcatheter aortic valve implantation (TAVI) is now the standard treatment for severe aortic stenosis in high-risk symptomatic patients, and its indications are expanding to lower-risk patients.

Objectives: The objective of this study was to analyze the state of TAVI in Spain vs other European and non-European countries.

Methods: Using an online questionnaire, we analyzed the routine practice of 250 TAVI centers worldwide. The questionnaire included 59 questions on patient selection, technical aspects of the procedure, and postprocedural management. The centers were divided into Spain (n = 41), rest of Europe (n = 105), and rest of the world (n = 104).

Results: The cumulative number of procedures (74; range, 40-122) and those performed in the last year (16.5; range, 15-29.5) in Spain, were significantly lower than the rest of Europe (P<.01) and the rest of the world (P<.01). The patient risk profile was higher, with an under-use of functional tests compared to the rest of the world. While the use of computed tomography to analyze the aortic annulus was lower in Spain (P<.001), general anesthesia and transesophageal echocardiography were more frequently used in Spain than in the rest of Europe (P<.001 for both). Dual-antiplatelet therapy is the most common post-TAVI antithrombotic therapy in the absence of an indication for anticoagulation, although its duration is longer in Spain (6 months) compared to European centers (3 months).

Conclusions: Routine TAVI practice in Spain differed in some key aspects of preprocedural, intraprocedural, and postprocedural management. Future studies will help to unify strategies and assess their impact on clinical results.