Reid A, Ben Zekry S, Turaga M, Tarazi S, Bax JJ, Wang DD, Piazza N, Bapat VN, Ihdayhid AR, Cavalcante JL, Blanke P, and Leipsic J. Neo-LVOT and Transcatheter Mitral Valve Replacement: Expert Recommendations. JACC Cardiovasc Imaging 2020.
JACC Cardiovasc Imaging
With the advent of transcatheter mitral valve replacement (TMVR), the concept of the neo-left ventricular outflow tract (LVOT) was introduced and remains an essential component of treatment planning. This paper describes the LVOT anatomy and provides a step-by-step computed tomography methodology to segment and measure the neo-LVOT while discussing the current evidence and outstanding challenges. It also discusses the technical and hemodynamic factors that play a major role in assessing the neo-LVOT. A summary of expert-based recommendations about the overall risk of LVOT obstruction in different scenarios is presented along with the currently available methods to reduce the risk of LVOT obstruction and other post-procedural complications.
ePub ahead of print