“…Despite the above evidence in patients undergoing SAVR, the clinical impact of PPM in patients undergoing TAVI is not entirely clear to date. On one hand, its impact on prosthetic hemodynamic function and on clinical outcomes was progressively more recognized even among patients treated percutaneously (70,79,101,102): PPM was associated with less improvement in functional class, with reduced regression of ventricular mass and diastolic dysfunction, and with increased mortality, especially when severe (67,(103)(104)(105). This is concordant with data from the STS/ACC TVT registry, which showed a significant difference at 1 year in terms of mortality in patients with severe, moderate and non-PPM (17.2, 15.6, and 15.9%, respectively, p = 0.02), as well as in terms of re-hospitalization for heart failure (14.7, 12.8, and 11.9%, respectively, p < 0.0001) (72).…”