Assessment of the left atrial function and volumetric parameters in patients with coronary artery diseases
ZHANG Zhi-ling
ZHANG Chun
BIAN Hong
XIANG Xiao-ping
LIU Si-ren
LIU Yu
Abstract：Objective To evaluate left atrial (LA) function and LA volumetric parameters in patients with coronary artery diseases (CAD) by real-time three-dimensional echocardiography (RT-3DE).And to assess the relationship between left ventricular(LV) diastolic function and LA parameters by RT-3DE.Methods Eighty patients with CAD were divided into four groups:the normal,the impaired relaxation,the pseudonormal and the rest rictive filling groups.All patients underwent three dimensional echocardiography to measure the LA maximum volume,LA volume pre contraction,left atrial minimum volume and the indices of LAVmax,LAVpre and LAVmin adjusted by surface area.Then LAVtEF,LAVpEF,LAVaEF were calculated.The peak flow velocities during early diastole (E),atrial contraction (A),E/A ratio were recorded and calculated by two-dimensional echocardiography (2DE).The early peak of diastolic velocity of mitral annular velocity(Em),drag acceleration time of E and the early left ventricular diastole propagation velocity(Vp) were measured by tissue Doppler imaging.The results by 2DE and RT-3DE of all patients were respectively compared.Results There were increasing in E/A,E/Em,and E/Vp and decreasing in DT with increasing in the grading of the LV diastolic function (all P ＜ 0.05).There were increasing in LAVmax,LAVpre,LAVmin,LAVmax index,LAVpre index,LAVmin index and decreasing in LAVtEF with increasing in the grading of the LV diastolic function(P ＜ 0.05).The E/Em,E/Vp,DT well correlated to LAVmax index,LAVpre index,LVAmin index,LAVtEF by RT-3 DE,r was 0.75,0.70,0.73,-0.79,respectively (all P ＜ 0.05) and 0.75,0.68,0.72,-0.83,respectively (all P ＜ 0.05) and-0.70,-0.69,-0.67,0.74,respectively (all P ＜0.05).LAVmax index≥34 ml/m2,LAVtEF≤30％ could diagnose high left rentricular filling pressure (E/Em ＞ 15),the sensitivity and specificity were 85.7％,65.6％ and 85.1％,81.6％ respectively.Conclusion The indices of LA volume and function by RT-3DE in patients with CAD may have great value for assessing the left ventricular diastolic function.
Keywords：Coronary artery diseasesEchocardiography tracings surgeryLeft atrial volumeLeft ventricular diastolic function
Publication Date：2013-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：3( 461-463 )