Assessment of left atrial volume and function by real-time three dimensional echocardiography and LA tracking in essential hypertension patients with different patterns of left ventricular geometric models
WANG Yang, GAO Lin
Department of Ultrasound, Second Affiliated Hospital of Dalian Medical University, Dalian Liaoning 116027, China
Abstract：Objective: To evaluate the change of left atrial volume and function in essential hypertension(EH) patients with different patterns of left ventricular geometric models using RT-3DE and LA tracking(LAT). Methods: 133 patients with EH were divided into four groups according to Ganau: normal pattern group(group Ⅰ), concentric remodeling pattern group(group Ⅱ), concentric hypertrophy pattern group(group Ⅲ), eccentric hypertrophy pattern group(group Ⅳ). 33 control subjects were enrolled. RT-3DE was used to measure maximal volume, minimal volume, stroke volume, conduit volume and ejection fraction of the left atrium. According to the time-volume curve obtained by LAT, LAVmax’, LAVmin’, LA presystolic volume(LApre) were measured. And then LASV’, LAEF’ and LA passive emptying volume(LAVp) were calculated. The difference between the control group and EH group was compared. Results: Compared with the control group, LAVmax, LAVmin, LASV, LAEF, LAVmax’, LAVmin’, LASV’, LAEF’ in EH group increased, but LACV and LAVp decreased(P<0.05). Comparison within the EH groups: All parameters in the group Ⅲ and group Ⅳ markedly increased than other groups(P<0.01). LAEF was lower in group Ⅳ than group Ⅲ(P<0.05). There was no difference of LACV and LAVp between group Ⅱ and group Ⅰ(P>0.05). Conclusion: Left atrial reservoir function and booster pump function increase in normal pattern of left ventricular geometric models, while left atrial conduit function decreases. Left atrial booster pump function decreases in eccentric hypertrophy pattern. There is no significant difference of left atrial booster pump function between group Ⅰ and group Ⅱ. Combination of RT-3DE and LAT technology can evaluate the left atrial volume and function of hypertension accurately.
王 阳;高 林. 实时三维超声心动图与左房追踪技术评价不同左心室构型原发性高血压患者左心房的容积与功能[J]. , 2013, 24(2): 96-99.
WANG Yang;GAO Lin. Assessment of left atrial volume and function by real-time three dimensional echocardiography and LA tracking in essential hypertension patients with different patterns of left ventricular geometric models. , 2013, 24(2): 96-99.
2013, Vol. 24 
