“…Currently, PBAV is strongly recommended as valve preparation for subsequent PAVI (pre-dilation), and has been increasingly used, in parallel with the bioprosthesis catheter-implantation technique. 8 A patient with critical AS with acute heart failure or cardiogenic shock represents a therapeutic challenge, as this is a condition whose definitive treatment is complex and carries a high risk of death. PBAV is generally used in this context as a bridge to surgery; however, due to the modest increase in valve area and the reasonable complication rate, there is a limitation for its use, even in these patients.…”