Real-time three-dimensional echocardiography for reviewing left atrial volume and function in patients with prehypertension
SUN Qi
SHI Yu-jie
ZHANG Yan-ling
ZHANG Jian
LI Jun-xia
Abstract：Objective To discuss the values of real-time three-dimensional echocardiography (RT3DE) in the reviewing of left atrial function in the patients with prehypertension. Methods The patients with prehypertension (SBP=120 mmHg-139 mmHg and/or DBP=80 mmHg-90 mmHg) were chosen as prehypertension group (n=80) from Jun. 2012 to Dec. 2012, and the cases with blood pressure below 120/80 mmHg were chosen as control group. The diameters of left atrium and ventricle, interventricular septum thickness (IVST), left ventricular posterior wall thickness, and left ventricular diastolic indexes, including early diastole peak velocity (E) and systolic peak velocity (A), mitral ring early motion velocity (E’) and systolic motion velocity (A’), were detected by using two-dimentional echocardiography, and E/A ratio was calculated. The maximum left atrial volume (LAVmax), minimum left atrial volume (LAVmin) and left atrial volume before contraction (LAVpre) were detected by using RT3DE. The left atrial stroke volume (LASV), left atrial emptying fraction (LAEF%), left atrial passive ejection fraction (LAp%) and left atrial active ejection fraction (LAa%) were calculated. All results were compared and analyzed in two groups. Results ①The results of two-dimentional echocardiography showed that IVST was thicker in prehypertension group than that in control group [(9.71±0.81) mm vs. (9.04±1.08) mm, P<0.05], and other indexes had no statistical difference between two groups (all P>0.05). ②The results of RT3DE showed that LAVmax, LAVpre, LAEF%, LASV and LAa%were higher in prehypertension group than those in control group [(35.46±4.27) mL vs.(31.56±3.34) mL, (20.58±3.72) mL vs. (17.84±3.32) mL, (55.60±8.23)%vs.(50.47±7.27)%, (20.34± 5.74) mL vs. (16.79±5.12) mL, (39.48±10.48)%vs. (31.57±10.26)%, all P<0.05], and LAp%was lower [(43.69 ±10.32)%vs. (47.26±10.67)%, P<0.05]. Conclusion RT3DE can find out more early the changes of left atrial volume and function compared with two-dimentional echocardiography in the patients with prehypertension.
Keywords：EchocardiographyThree-dimensionPrehypertensionLeft atrium
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 391-393 )