Clinical value of tissue motion mitral annular displacement in review of global left ventricular systolic function in patients with acute anterior myocardial infarction
LIU Zhen-lin
HAN Jiang-tao
YANG Qi-cai
TANG Yi-jun
CHEN Li
Abstract：Objective To discuss the clinical value of tissue motion mitral annular displacement (TMAD) in review of global left ventricular systolic function in patients with acute anterior myocardial infarction (AAMI). Methods AAMI patients (n=79, observation group) and healthy controls (n=60, control group) were chosen from the Department of Ultrasonography of First People’s Hospital of Yibin City from Jan. 2012 to Aug. 2015. All groups were given echocardiography examination of routine two-dimensional ultrasound by using Philips Ie33 type ultrasonic diagnostic apparatus and matched probe. The results of routine two-dimensional ultrasound [left ventricular ejection fraction (LVEF), left ventricular end-systolic diameter (LVESd)], systolic mitral annular velocity (s)] and TMAD parameters (6 locus displacement and displacement related indexes of mitral annulus) were compared between 2 groups by using TMAD plug-in in Philips Qlab 9.0 analysis software.Results LVEF was (48.0±2.65)%, LVESd was (42.5 ±2.89) mm, s of ventricular septum was (4.78±1.23) cm/s and s of left ventricular side wall was (5.37±1.32) cm/s in observation group, and LVEF was (61.7±4.98)%, LVESd was (48.3±3.04) mm, s of ventricular septum was (8.60 ±1.45) cm/s and s of left ventricular side wall was (10.9±1.68) cm/s in control group. LVEF decrease significantly, and LVESd, s of ventricular septum and s of left ventricular side wall decreased significantly in observation group compared with control group (P<0.05). The maximum systolic displacement values of mitral annulus at 6 loci (anterior and posterior walls, anterior and posterior septa, inferior wall and left ventricular side wall) decreased in observation group compared with control group (P<0.05). The maximum displacement value and its percentage in left ventricular long-axis in apical four chambers, two cardiac chambers and left ventricular long-axis systolic mitral annulus midpoint decreased in observation group compared with control group (P<0.05).Conclusion TMAD can review exactly and objectively the left ventricular systolic function, through measuring parameters of mitral annular displacement at 6 loci, with the advantages of easy and independent of imagine quality in patients with AMI.
Keywords：Acute anterior myocardial infarctionTissue motion mitral annular displacementSystolic functionLeft ventricle
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1341-1344 )