超声二维斑点追踪技术评价原发性高血压左室扭转的临床价值

发布时间：2018-08-19 21:19

【摘要】：目的探讨二维斑点追踪技术(STZ)评价原发性高血压(EH)患者左室扭转的临床价值。方法 2013年12月至2014年10月在该院心内科门诊就诊或住院的EH 100例为病例组(高血压组),根据Ganau分型法分为左心室构型正常(LVN)组68例和左心室重构(LVR)组32例。正常对照组30例,各组均应用普通二维超声测量左室舒张末期内径(LVDd)、左室收缩末期内径(LVDs)、室间隔舒张末期内径(IVSd)、左室后壁舒张末期厚度(LVPWTd)、短轴缩短率(FS)、左室射血分数(LVEF);应用2D-STI测量左室扭转参数:左心室心尖部旋转角度峰值(PAR)、基底部旋转角度峰值(PBR)及左室整体扭转角度峰值(PTW)。不同组别、分级间各测量参数进行对比分析。结果病例组患者2D-STI检查左室扭转参数PAR、PBR、PTW与正常对照组比较差异均有统计学意义(P0.05);LVN组PAR、PBR、PTW组间比较,差异无统计学意义(P0.05);LVR各组中离心性心肌肥厚(ECH)组PAR与向心性重构(CCR)组、向心性肥厚(CCH)组比较差异具有统计学意义(P0.05);余组间比较无统计学意义(P0.05)。结论高血压患者的左室扭转运动异常较构型改变提前出现,为早期评价左室收缩功能提供了指标。2D-STI通过定量评价不同分级、不同构型高血压患者左室旋转及扭转特征,可敏感反映左室收缩功能的改变。
[Abstract]:Objective to evaluate the clinical value of two-dimensional dot-tracing technique (STZ) in evaluating left ventricular torsion in patients with essential hypertension (EH). Methods from December 2013 to October 2014, 100 patients with EH were divided into left ventricular normal (LVN) group (n = 68) and left ventricular remodeling (LVR) group (n = 32) according to Ganau classification. 30 cases in normal control group, The left ventricular end-diastolic diameter (LVDd),) was measured by two-dimensional echocardiography in each group. (LVDd), left ventricular end-systolic diameter (LVDs),) interventricular septal end-diastolic diameter (IVSd),) left ventricular posterior wall thickness (LVPWTd),) short-axis shortening rate (FS), left ventricular ejection fraction (LVEF);) and 2D-STI measurement were used to measure the left ventricular end-diastolic diameter. Left ventricular torsion parameter: left ventricular apex rotation angle peak (PAR), base rotation angle peak (PBR) and left ventricular global torsion angle peak (PTW). The measurement parameters of different groups and grades were compared and analyzed. Results the left ventricular torsion parameters of patients with 2D-STI were significantly different from those of the normal control group (P0.05). There was no significant difference between the two groups (P0.05). There was no significant difference between the two groups (P05). There was no significant difference between the two groups (P05). There was no significant difference between the two groups (P0.05). There was no significant difference between the two groups (P0.05) in the eccentric myocardial hypertrophy (ECH) group and the concentric remodeling (CCR) group. The difference of concentric hypertrophy (CCH) group was statistically significant (P0.05), while the other group had no statistical significance (P0.05). Conclusion the abnormal torsion of left ventricle appears earlier than the change of configuration in patients with hypertension, which provides an index for early evaluation of left ventricular systolic function. 2D-STI can quantitatively evaluate the left ventricular rotation and torsion characteristics in patients with hypertension with different configurations and different grades. It can sensitively reflect the changes of left ventricular systolic function.
【作者单位】：佳木斯大学附属第一医院物理诊断科;佳木斯大学基础医学院;佳木斯大学附属第一医院心内科;
【基金】：黑龙江省自然科学基金项目(H201489) 佳木斯大学研究生科技创新项目(LM2014-031)
【分类号】：R445.1;R544.11

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