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| 1 | Assessment of Left Atrial Function by Full Volume Real-time Three-dimensional Echocardiography and Left Atrial Tracking in Essential Hypertension Patients with Different Patterns of Left Ventricular Geometric Models显示文摘Objective To evaluate left atrial function in essential hypertension patients with different patterns of left ventricular geometric models by real-time three-dimensional echocardiography(RT-3DE)and left atrial tracking(LAT).Methods One hundred and thirty-three patients with essential hypertension were divided into four groups according to criteria proposed by Ganau et al:36 patients in normal pattern group(I),34 patients in concentric remodelling pattern group(II),33 patients in concentric hypertrophy pattern group(III),and 30patients in eccentric hypertrophy pattern group(IV).Thirty-two healthy volunteers were enrolled in this study.RT-3DE and LAT were used to obtain the volume-time and emptying fraction curves,and then the maximal volume,minimal volume,stroke volume,presystolic volume,ejection fraction,systolic filling rate,early diastolic emptying rate and late diastolic emptying rate of the left atrium were measured.Conduit volume and passive emptying volume of the left atrium were calculated.Results Left atrial indexes,conduit volume,passive emptying volume,and early diastolic emptying rate decreased,while the other indices increased in the group I compared with the control group(all P<0.05).Compared with the control group,I and II groups,the left atrial volume parameters manifested change in the group III and group IV(all P<0.01).Left atrial ejection fraction measured by RT-3DE or LAT,and late diastolic emptying rate were lower in the group IV compared with the group III(all P<0.05).There was no difference in left atrial conduit volume,passive emptying volume,and early diastolic left atrial emptying rate between the group II and group I(all P>0.05).There was a positive correlation between RT-3DE and LAT in evaluating left atrial function.Conclusions Left atrial booster pump function decreases in the eccentric hypertrophy pattern.Left atrial conduit function is unchanged in the normal pattern and the concentric remodelling pattern groups.RT-3DE and LAT technology can be used for quantitative evaluation of left atrial volume and function. | Yang Wang Lin Gao Jian-bai Li Chao Yu | 2013 | Chinese Medical Sciences Journal2013，28，3： | 9 |
| 2 | Left atrial minimum volume by real-time three-dimensional echocardiography as an indicator of diastolic dysfunction显示文摘 | LIN Qiong-wen WANG Wu-gang WU Wei-chun WANG Hao | 2013 | Chinese Medical Journal2013，，22： | 6 |
| 3 | 原发性高血压患者左心形态和左心室功能变化情况显示文摘目的探讨原发性高血压患者左心几何形态和左心室功能变化情况。方法选择246例原发性高血压患者为观察组与162例健康体检者为对照组,采用超声心动图,测量左心房室几何形态和心脏舒缩功能相关指标。结果观察组IVSD、LVPWD比对照组厚,LVDD、LVDS、LAD、LAL等测值比对照组高,差异均有统计学意义(P<0.01);观察组每搏量(SV)、心排血量(CO)、左室收缩末期室壁应力(LVESS)、左心室射血分数(EF)值均低于对照组,而二尖瓣口的E峰和E/A值低于对照组、A峰和IVRT高于对照组,差异均有统计学意义(P<0.05)。结论高血压向心性肥厚患者左心室质量虽在正常范围但室壁增厚心腔变长,左心室舒张功能和收缩功能均受到一定损伤。 | 陈红 张信祥 刘海波 | 2014 | 心脑血管病防治2014，14，2： | 1 |
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