成形术对二尖瓣下游血流动力学的影响研究  

Clinical research on hemodynamics with different preservation of subvalvular apparatus

作　　者：张浒[1] 王钰[2] 梅松[1] 张桂敏[1] 孙毅[1] 

机构地区：[1]昆明医科大学第一附属医院心脏大血管外科,昆明650032 [2]昆明医科大学第一附属医院心脏内科彩超室

出　　处：《临床心血管病杂志》2013年第12期938-940,共3页Journal of Clinical Cardiology

基　　金：云南省教育厅科学研究基金项目(No:2013C243);云南省科技厅昆明医科大学联合专项基金(No:2011FB185)

摘　　要：目的:明确二尖瓣成形术对瓣膜下游血流动力学的影响。方法:将入选的18例患者依据二尖瓣成形方式分为成形环+缘对缘组、缘对缘组和成形环组。检测常规、心功能、流场均匀性指标,然后应用计算机图像分析技术计算湍流剪应力(TSS)和相对扰动强度(Irel)。结果:PGmean、Vmax、ΔVmax、外周位点TSS和Irel在成形环+缘对缘组最高,缘对缘组次之,成形环组最低(P<0.05)。结论:同时采用成形环和缘对缘技术可能对下游血流动力学产生不利影响。Objective：To research the in：pact of mitral valve downstream hemodynamics induced by different valve plasty interfere. Method： Eighteen patients were divided into different groups according to different method of mitral valve plasty. PGmean, Qmv, Vmax △Vmax were measued by Doppler echocardiography. TSS and Irel were computed by Doppler echocardiography combining with the analysis of image by computer. Result： PGmean ,Qmv, Vmax, △Vmax TSS and Irel in annuloplasty ring＋edge-to-edge procedure were obviously higher than those in other groups. Conclusion：Both annuloplasty ring and edge-to-edge procedure may be inferior.

关 键 词：缘对缘 成形环 二尖瓣成形术 血流动力学 多普勒超声 

分 类 号：R318[医药卫生—生物医学工程]