摘要
目的通过对左心室射血分数(LVEF)、左心室舒张末容积(EDV)、左心室收缩末容积(ESV)、瞬时加速度波强(W1)、6 min步行距离(6MWD)的比较,探索W1评价冠心病患者左心功能的价值。方法应用ProSoundα10彩色多普勒超声诊断仪检测患者EDV、ESV、LVEF、W1,随即测量患者6MWD,之后2 h内行冠状动脉造影,选择冠状动脉造影证实至少1支血管一处狭窄>50%患者83例作为研究对象。将入选者按6MWD分为2组(6 min运动距离正常组,6MWD>350 m;6 min运动距离减退组,6MWD<350 m),比较两组间EDV、ESV、LVEF、W1。结果两组EDV、ESV、W1、LVEF比较均有统计学意义(P<0.01);W1、LVEF与6MWD呈明显正相关(P<0.01);EDV、ESV与6MWD呈明显负相关(P<0.01)。结论 W1有望成为一项反映左心室收缩功能的超声指标。
Objective To explore the accelerating wave intensity（ W1 ） value in evaluating left ventricular systolic function by comparing W1, LVEF, EDV, ESV and 6 minutes walking distance （6MWD）. Methods Patients with CAD were detected with Prosound a 10 color Doppler ultrasonograph, the W1, EDV, ESV and LVEF were recorded ; after the echocardiography, the 6MWD of every patient was measured ; coronary angiography was taken within 2 hours,83 patients with 〉 50% stenosis in at least one vessel were selected as study objects. Then the 83 patients were divided into 2 groups according to 6MWD index（6MWD normal group,6MWD 〉 350m ; 6MWD decline group, 6MWD 〈 350m）, EDV, ESV, LVEF, W1 of the two groups were compared. Results W1, LVEF, EDV, ESV and 6MWD of the two groups all showed significant difference（ P 〈 0.01 ）. There were positive correlations between W1, LVEF and 6MWD （ P 〈 0.01 ）. There were negative correlations between EDV, ESV and 6MWD （ P 〈 0.01 ）. Conclusion W1 is expected to become an ultrasonic index to evaluate the left ventrieular systolic function.
出处
《医学综述》
2012年第14期2283-2285,共3页
Medical Recapitulate
关键词
瞬时加速度波强
6MIN步行距离
收缩功能
Accelerating wave intensity （WI）
6 minutes walking distance （6MWD）
Systolic function
