经食道三维心脏超声评价重度二尖瓣脱垂患者瓣环的动态改变  

Dynamic Changes of Valve Annulus by Three-Dimensional Transesophageal Echocardiography in Patients with Severe Mitral Valve Prolapse

作　　者：邓冰清[1] 郑韶欣[1] 韦育林[1] 刘英梅[1] 邱琼[1] 陈样新[1] 王景峰[1] DENG Bing-qing;ZHENG Shao-xin;WEI Yu-lin;LIU Ying-mei;QIU Qiong;CHEN Yang-xin;WANG Jing-feng(Department of Cardiology,Sun Yat-sen Memorial Hospital,Sun Yat-sen University,Guangzhou 510120,China)

机构地区：[1]中山大学孙逸仙纪念医院心血管内科,广东广州510120

出　　处：《中山大学学报（医学科学版）》2022年第2期247-252,共6页Journal of Sun Yat-Sen University:Medical Sciences

基　　金：国家自然科学基金(81700261)。

摘　　要：【目的】探讨器质性二尖瓣脱垂合并瓣叶重度关闭不全患者的二尖瓣瓣环随心动周期变化的形态特征,为术前评估脱垂的二尖瓣提供更多准确信息。【方法】使用配有经食管三维探头X7-2t的Philips Epic7C超声心动图仪以及QLAB的MVN软件,收集并分析18例二尖瓣脱垂并重度关闭不全患者和36例正常二尖瓣患者的二尖瓣瓣环相关参数。【结果】各个时相二尖瓣脱垂合并重度关闭不全组患者的二尖瓣瓣环前外侧与后内侧直径、前后径、瓣环周长及瓣环面积均大于正常对照组(P<0.05);且收缩中晚期同组患者上述瓣环参数值大于收缩早期,(P<0.05),而二尖瓣环高度及前后瓣叶角度在两组间及各个心动周期时相之间无差别(P>0.05)。【结论】二尖瓣瓣环的立体形态和功能参数随着心动周期不同时相而发生动态改变,三维食道超声技术为器质性二尖瓣脱垂提供了准确详尽的信息。【Objective】To investigate the morphological characteristics of mitral valve annulus in patients with degen⁃erative mitral valve prolapse with severe regurgitation.【Methods】A total of 18 patients with mitral valve prolapse compli⁃cated with severe regurgitation and 36 patients with normal mitral valve were selected and analyzed using Philips Epic7C echocardiography equipped with transesophageal 3D probe X7-2T and QLAB MVN software.【Results】The anterolateral and posterio-medium diameter,anterior-posterior diameter,circumference and area of mitral annulus in patients with mi⁃tral prolapse complicated with severe regurgitation were larger than those in the control group(P<0.05).In addition,the annulus parameters in the middle and late systole were higher than those in the early systole(P<0.05),while the height of the mitral annulus and the non-planar angle showed no difference between the two groups or among different cardiac cycles(P>0.05).【Conclusions】The three-dimensional morphology and functional of mitral valve annulus changed dynamically with different phases of cardiac cycle.Three-dimensional esophageal echocardiography could provide accurate and de⁃tailed information for degenerative mitral valve prolapse with regurgitation.

关 键 词：经食道三维超声心动图 二尖瓣脱垂 二尖瓣瓣环 心动周期 

分 类 号：R540.45[医药卫生—心血管疾病]