Transapical Mitral Valve Implantation for the Treatment of Severe Native Mitral Valve Stenosis in a Prohibitive Surgical Risk Patient : Importance of Comprehensive Cardiac Computed Tomography Procedural Planning

A 66-year-old woman with severe mitral stenosis (mean gradient, 13.81 mm Hg; valve area, 0.8 cm2) and extensive mitral annular calcification (MAC) presented with New York Heart Association functional class IV congestive heart failure. Balloon mitral valvuloplasty was not considered due to the high