“…Among the 20 patients in the PPVI group, 16 received a Medtronic Melody valve (Medtronic, Minneapolis, Minnesota, USA) and 4 received an Edwards SAPIEN valve (Edwards Lifesciences, Irvine, California, USA). 23 Two of the patients underwent pre-stenting 1 and 3 months prior to valve implantation, while nine patients underwent pre-stenting during the implantation procedure. A median of 1 (range, 1–3) pre - stent was used.…”