心脏彩超在高血压左室肥厚伴左心衰竭诊断中的应用研究

Application of color Doppler echocardiography in diagnosis of hypertensive left ventricular hypertrophy complicated with left heart failure

目的探讨心脏彩超在高血压合并左室肥厚、左心衰竭中的诊断价值。方法选择高血压合并左室肥厚、左心衰竭患者68例纳入实验组,同期选择健康志愿者68例纳入对照组,2组均进行心脏超声检查,比较2组左心房内径(LAD)左室舒张末期内径(LVEDD)左室射血分数(LVEF)及舒张瓣口最大血流速度/舒张瓣环速度(E/EA)。结果心功能Ⅲ级患者LVEDD、LAD、E/EA、LVEF值显著差于Ⅱ级、Ⅰ级者,而心功能Ⅱ级患者LVEDD、LAD、E/EA、LVEF值显著差于心功能Ⅰ级者(P <0. 05)。实验组LVEDD及E/EA值显著高于对照组,LAD、LVEF指标显著低于对照组(P <0. 05)。结论心脏彩超能够准确反映LVEDD、LAD、E/EA和LVEF等心脏指标水平,对高血压左室肥厚伴左心衰竭具有重要的诊断意义。

Objective To explore ralue of color Doppler echocardiography in diagnosis of hypertensive left ventricular hypertrophy complicated with left heart failure.Methods A total of 85 patients with hypertensive left ventricular hypertrophy and left heart failure were selected as experimental group,and 68 healthy people were selected as control group at the same time.The patients of both groups were implemented heart color doppler ultrasound examination.Left atrial diameter(LAD),left ventricular end-diastolic diameter(LVEDD),left ventricular ejection fraction(LVEF),and early diastolic peak velocity of left atrioventricular valve opening/maximum velocity of early diastolic left atrioventricular valve ring(E/EA)were compared between two group.Results The levels of LVEDD,LAD,E/EA and LVEF were significantly worse in patients with gradeⅢcardiac function than those with gradeⅡand gradeⅠ,and those with gradeⅡcardiac function was significantly worse than those with gradeⅠcardiac function(P<0.05).The LVEDD and E/EA values of the experimental group were significantly higher,and LAD,LVEF were significantly higher than those of the experimental group(P<0.05).Conclusion Color Doppler ultrasound for cardiac left ventricular hypertrophy can accurately reflect the levels of LVEDD,LAD,E/EA,and LVEF in hypertensive patients with left ventricular failure,and has a high diagnostic ralue.