摘要
目的 研究一级高血压对心脏早期损害表现。方法 应用定量组织速度成像技术，分析二尖瓣瓣环和左心室12个节段心肌舒张早期左心室充盈Em波、舒张晚期Am波和Em／Am比值。结果一级高血压患者Em波速度降低，Am波速度增加，共349个心肌节段Em／Am＜1，以室间隔、前壁和后壁多见，同时30％患者二尖瓣瓣环Em／Am＜1。结论 一级高血压患者存在左室舒张功能减退。
Objective To investigate the early cardiac diastolic dysfunction in patients with grade I hypertension. Methods The peak early diastolic（Em wave） , peak late diastolic velocities （Am wave）and the Em/Am ratios at 12 different sites on the left ventricle myocardium including mitral valve annulus were measured by quantitative tissue velocity imagine （QTVI）. Results A signi[icant reduction of E and increases in A were detected in patients with hypertension grade Ⅰ , Measurement at 349 sites of left ventricle showed that the average E/A ratios were less than 1, especially in the sites of interventricular septum, anterior and posterior wall. 30% of the patients showed that E/A ratios were less than 1 on mitral valve annulus. Conclusion The early left ventricular diastolic Junctional remodeling can be detected in patients with hypertension grade Ⅰ by quantitative tissue velocity imaging.
出处
《高血压杂志》
CSCD
北大核心
2005年第11期694-696,共3页
Chinese Journal of Hypertension
关键词
高血压
左室
舒张功能
定量组织速度成像
Left ventricular
Remodeling
Hypertension
Quantitative tissue velocity imaging
