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Aims Right ventricular systolic dysfunction is considered an outcome predictor in various cardiac diseases, sometimes stronger than ejection fraction (EF). We assume that right ventricular dysfunction, calculated with echocardiography in patients candidate for trans-catheter aortic valve implantation (TAVI), could be an outcome predictor. To evaluate the prognostic value of pre-TAVI right ventricular free wall longitudinal strain (RVFWSL) in patients with severe aortic stenosis undergoing TAVI. Methods and results Retrospective analysis of 100 patients underwent transfemoral TAVI in our hospital from January 2015 to September 2019, with at least a pre-TAVI and post-TAVI echocardiography. For each patients we collected clinical and echo data before and after TAVI and during the follow-up; we measured RVFWSL off-line at the same time. We considered the value of [23.3]% the cut-off of normality for RVFWSL. The primary endpoint was a composite of death from any cause and hospitalization for heart failure. The median age of the patients was 81 years (79–83) and EF was preserved in most patients (median: 56%, 55–58.28%). At a median follow-up of 1023 days (630–1387), the univariate analysis demonstrated a predictive of a reduced RVFWSL before TAVI ( Conclusions Among patients with severe aortic stenosis undergoing TAVI, a reduced pre-implant RVFWSL is able to predict long-term outcome.