二维及三维纵向应变评价高血压对未用药物治疗的中年患者左室心肌功能的早期影响

doi:10.12117/jccmi.2020.08.012

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Abstract Objective: To evaluate the changes of left ventricular(LV) systolic function in patients with essential hypertension in early stage by using the longitudinal strain(LS) index of two-dimension(2D) and three-dimensional speckle-tracking echocardiography(3D-STE), and to explore the application value and superiority of 3D-STE. Methods: Thirty-four cases of untreated essential hypertension were collected from 45~65 years old middle-aged people in the hypertension group(H) and 34 healthy volunteers matched in age and sex were collected in the control group(C). Left ventricular posterior wall thickness at end-diastole(LVPWTd), interventricular septal thickness at end-diastole(IVSTd), relative wall thickness(RWT), and left ventricular ejection fraction(2D-EF) were measured. 2D-LS was calculated by 2D-STE. 3D-EF, LV mass index(LVMi), and 3D-LS were calculated by 3D-STE. Results: There was no significant difference in LVPWTd, IVSTd, RWT, 2D-LS, 2D-EF and 3D-EF; 3D-LS was significantly lower(P<0.05) and LVMi was significantly higher(P<0.05) in H than that in C. 3D-LS was positively correlated with 3D-EF(r=0.28, P<0.05), and negatively correlated with SBP, DBP(r=-0.39, P<0.05; r=-0.31, P<0.05). Conclusion: In the middle-aged patients with essential hypertension, the left ventricular systolic function has been reduced when the early left ventricle has not been reconstructed. 3D-LS is more sensitive than 2D-LS to evaluate the left ventricular systolic function in the early stage of hypertension.

Key words： Ventricular function, left Hypertension Echocardiography

Received: 29 February 2020

PACS:	Ｒ544.1
	Ｒ331.31
	Ｒ540.45

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	Articles by authors
	SUN Lu
	REN Wei-dong
	LV Hui-na
	YU Xiao-na
	FAN Miao

Cite this article:

SUN Lu,REN Wei-dong,LV Hui-na, et al. Two-dimensional and three-dimensional longitudinal strain in evaluation of early effect of hypertension on left ventricular systolic function in middle-aged patients without medication[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2020, 31(8): 576-579.

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http://www.jccmi.com.cn/EN/10.12117/jccmi.2020.08.012 OR http://www.jccmi.com.cn/EN/Y2020/V31/I8/576

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