| 范春艳,吴长君,张春梅.组织多普勒超声心动图对扩张型心肌病患者急性左心功能衰竭的研究[J].中国医学影像技术,2008,24(8):1201~1203 |
| 组织多普勒超声心动图对扩张型心肌病患者急性左心功能衰竭的研究 |
| Study on acute left heart failure in idiopathic dilated cardiomyopathy with pulsed-tissue Doppler echocardiography |
| 投稿时间：2008-03-04 修订日期：2008-06-19 |
| DOI： |
| 中文关键词: 超声心动描记术 心肌病,扩张型 心室功能,左 |
| 英文关键词:Echocardiography Cardiomyopathy, dilated Ventricular function, left |
| 基金项目: |
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| 中文摘要: |
| 目的 应用组织多普勒超声心动图定量分析心肌运动状态与扩张型心肌病患者急性左心功能衰竭的关系。 方法 25例扩张型心肌病患者分为急性左心功能衰竭组(Ⅰa组 )与慢性左心功能不全组(Ⅰb组),正常对照组20例。频谱多普勒超声心动图测量二尖瓣舒张早期血流速度(E峰)与舒张晚期血流速度(A峰)及E峰减速时间、E/A比值。组织频谱多普勒超声心动图测量二尖瓣环收缩期心肌运动速度(s峰)、舒张早期心肌运动速度(e峰)及舒张晚期心肌运动速度(a峰)与s/e比值。 结果 在正常对照组中,Ve大于Vs;在伴有急性左心衰竭扩心病患者中,Vs减低不明显,而Ve、Va则明显减低, Vs/Ve比值增高。且随着临床症状改善,Ve值明显增高。在慢性左心功能衰竭扩心病患者组中,Ve、Va明显高于Vs,Vs/Ve比值小于1。 结论 在扩张型心肌病患者中,导致急性左心功能衰竭的原因是由于心肌舒张功能损害,而不是心肌收缩功能减低。 |
| 英文摘要: |
| Objective To evaluate the relationship between acute left heart failure and segmental myocardium motion in patients with idiopathic dilated cardiomyopathy(IDC) using pulsed tissue Doppler echocardiography. Methods The patients with IDC were divided into the group with acute left heart failure and the group with chronic heart failure. Parameters derived from the transmitral flow spectral and pulsed tissue Doppler imaging were acquired in the two groups and compared with each other and normal group. Results Compared with normal group and the patients with chronic heart failure, the peak velocities of mitral ring in the early diastolic phase and in the late diastolic phase were the lowest in patients with acute left heart failure. And Clinical improvement was paralleled by gradual increase in the peak velocities of mitral ring in the early diastolic phase but not in the peak velocities of systolic phase. Conclusion In patients with IDC acute left heart failure is exclusively caused by diastolic rather than systolic failure. |
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