Validation of the VALVEX Questionnaire for Assessing Patient Experience During the Transcatheter Aortic Valve Implantation Process

<b>Background and Objectives:</b> Degenerative aortic stenosis has become the most common primary valve lesion referred for intervention, with thousands of transcatheter aortic valve implantation (TAVI) procedures being performed annually. To date, there are no quantitative tools capable of evaluating patient experience adapted to percutaneous procedures of this nature. The goal of this study is to propose and validate the VALVEX questionnaire as the reference tool to assess patient experience throughout the TAVI process and to identify areas for improvement in healthcare. <b>Methods:</b> This was a cross-sectional observational study with a 30-day follow-up that included consecutive patients > 18 years of age undergoing elective TAVI in two Spanish hospitals. A multidisciplinary panel including patients was constituted to design, refine, and pilot the VALVEX questionnaire. During its completion 30 days after the procedure, the dimensions assessed were the care provided before, during, and after TAVI, as well as the facilities and overall patient satisfaction. Reliability, validity, and feasibility were analysed during the validation phase. <b>Results:</b> A total of 335 patients were enrolled and filled out the VALVEX questionnaire (mean age 81.1 ± 5 years, 52% female). Evaluation of feasibility showed a mean completion time of 7.8 ± 2.3 min, with a 2.1% rate of unanswered questions. Cronbach's alpha index was 0.912, with high internal reliability measurements for all the assessed dimensions. An intraclass correlation coefficient (ICC) of 0.851 was determined as an indicator of stability. The Delphi panel achieved a consensus of over 85% in clarity, coherence, relevance, and sufficiency. <b>Conclusions:</b> We have successfully validated the VALVEX questionnaire as the first quantitative tool specifically designed to measure and evaluate patient experience throughout the TAVI procedure and recovery. This questionnaire is a valid, reliable, simple, and easy-to-use resource that could be used as a reference tool to assess patient experience for TAVI or other percutaneous cardiac interventions.