Asai Tohru
Department of Cardiovascular Surgery, Juntendo University, Tokyo, Japan.
Asian Cardiovasc Thorac Ann. 2020 Sep;28(7):413-415. doi: 10.1177/0218492320916298. Epub 2020 Apr 6.
Degenerative mitral regurgitation due to posterior leaflet prolapse is often associated with tissue redundancy in the leaflet height and free margin of the prolapsing segment. The butterfly technique has been introduced for focal resection to precisely control the leaflet height without annular plication. This technique is indicated for a high prolapsing leaflet, greater than 20 mm. With intraoperative measurement of leaflet heights and ink dot marking as a depth indicator, the butterfly technique can be safely performed in most high posterior leaflet prolapse cases, without increasing the risk of systolic anterior motion.
因后叶脱垂导致的退行性二尖瓣反流常与脱垂节段的瓣叶高度和游离缘组织冗余有关。已引入蝴蝶技术进行局灶性切除，以在不进行瓣环折叠的情况下精确控制瓣叶高度。该技术适用于脱垂瓣叶高度大于20 mm的情况。通过术中测量瓣叶高度并使用墨点标记作为深度指示器，蝴蝶技术可在大多数后叶高度脱垂病例中安全实施，而不会增加收缩期前向运动的风险。
