TY - JOUR AU - Asai, Tohru PY - 2015 TI - The butterfly technique JF - Annals of Cardiothoracic Surgery; Vol 4, No 4 (July 13, 2015): Mitral Valve Repair (II) Y2 - 2015 KW - N2 - Butterfly resection is a mitral valve repair technique for prolapsing posterior leaflets. The aim of butterfly resection is to optimize the geometry of the resultant new leaflet, with controlled height reduction for a prolapsing segment, without annular reduction. We have reported the concept of its design, its advantages in preventing post-repair systolic anterior motion (SAM), and excellent early and medium-term results. The present illustrated article describes the technical details of how we design and perform the butterfly technique. UR - https://www.annalscts.com/article/view/6870