3 RESULTS
All 43 patients underwent successful TMVI procedure without significant residual regurgitation and stenosis. However, one patient with transcatheter mitral ViR implantation developed SAM and severe LVOT obstruction leading to hemodynamic instability. As shown in Table 1, 24 patients (56%) had TMVI for degenerated bioprosthetic valves, 7 patients (16%) had TMVI for failed repair with annuloplasty rings, and 12 patients (28%) had TMVI for native MV diseases; 8 had severe functional mitral regurgitation, 3 had severe mitral stenosis or regurgitation due to mitral annular calcification, and 1 had rheumatic heart valve. Two patients were implanted balloon-expandable transcatheter stent valves size 23 mm, 7 were implanted stent valves size 26 mm, and the remaining patients (79%) were implanted stent valves size 29 mm (Table 2).