二维斑点追踪技术评价原发性高血压患者左心室纵向收缩功能价值  

Value of two-dimensional speckle tracking imaging to assessing left ventricular longitudinal systolic function in patients with essential hypertension

作　　者：李娜[1] 杨欣[1] 孙鹏[1] 范蕾[2] 郑春梅[1] 李丹[1] 杨军[2] 秦丽微[1] 

机构地区：[1]佳木斯大学附属第一医院超声科,黑龙江佳木斯154000 [2]佳木斯大学附属第一医院心内科,黑龙江佳木斯154000

出　　处：《中华实用诊断与治疗杂志》2016年第2期157-159,共3页Journal of Chinese Practical Diagnosis and Therapy

基　　金：黑龙江省自然科学基金(H201489);黑龙江省教育厅项目(12541798)

摘　　要：目的探讨二维斑点追踪技术(speckle tracking imaging,STI)在评价原发性高血压(essential hypertension,EH)患者左心室纵向收缩功能中的临床应用价值。方法EH患者47例,其中左心室正常构型(normal left ventricular geometry,LVN)者24例(LVN组),左心室异常构型(abnormal left ventricular geometry,LVR)者23例(LVR组),同期体检健康者22例为对照组,3组均行超声心动图检查,分别获取心尖二腔心、三腔心及四腔心二维动态图像,应用STI技术测定左心室基底段(basal segment of left ventricle,Bas-LS)、中间段(middle segment of left ventricle,Mid-LS)、心尖段(apical segment of left ventricular,Ape-LS)纵向收缩峰值应变及左心室整体纵向应变峰值(systolic peak global longitudinal strain,GLS),并进行比较。结果 LVN组、LVR组Bas-LS[(-20.35±3.58)%、(-14.91±3.62)%]、Mid-LS[(-22.56±3.65)%、(-16.90±4.13)%]、Ape-LS[(-25.45±4.61)%、(-19.49±4.89)%]及GLS[(-22.89±3.94)%、(-17.30±4.21)%]均低于对照组[(-22.01±4.02)%、(-24.35±3.98)%、(-28.26±5.45)%、(-24.87±4.46)%],LVR组Bas-LS、Mid-LS、Ape-LS及GLS均低于LVN组,差异均有统计学意义(P<0.05)。结论 EH患者尤其是LVR者左心室纵向收缩功能下降,STI技术可定量评价EH患者左心室纵向收缩功能。Objective To explore the clinical application value of speckle tracking imaging （STI） technique to assessing the left ventricular longitudinal systolic function in patients with essential hypertension. Methods Forty-seven patients with essential hypertension were divided into normal left ventricular geometry group （LVN, n= 24） and abnormal left ventricular geometry （LVR, n = 23）, and another 22 healthy volunteers were as controls （control group）. All three groups were performed echocardiography to obtain two-dimensional dynamic images of the two-, three- and four-chamber respectively. STI technique was used to measure the peak systolic longitudinal strains of basal segment of left ventricle （Bas-LS）, middle segment of left ventricle （Mid-LS） and apical segment of left ventricular （Ape-LS）, as wll as the peak global longitudinal strain （GLS）. Results The values of Bas-LS （（-20.35± 3.58）%, （- 14. 91 ± 3.62）%）, Mid-LS （（-22. 56±3. 65）%, （--16. 90±4. 13）%）, Ape-LS （（-25. 45±4. 61）%, （- 19. 49±4. 89）%） and GLS （（- 22.89 ± 3.94）%, （- 17.30±4.21）%） in LVN and LVR groups were significantly lower than those in control group （（-22. 01±4.02） %, （-24. 35±3. 98） %, （-28.26±5.45） %, （-24.87±4.46） %）, and were lower in LVR group than those in LVN group （P〈 0.05）. Conclusion Left ventricular longitudinal systolic function decreases in EH patients, especially in those with LVR. STI technique can quantitatively evaluate left ventricular longitudinal systolic function.

关 键 词：原发性高血压 二维斑点追踪技术 左心室收缩功能 纵向应变 

分 类 号：R544.11[医药卫生—心血管疾病]