Massive regurgitant jet through the 'entry' and out of the 're-entry' of a dissected left atrial wall: an extremely rare case of mitral regurgitation after prosthetic valve replacement. (18th June 2021) - Yoshigai, Yuko; Matsumoto, Kensuke; Suto, Makiko; Nakai, Hidekazu; Hirata, Ken-ichi