| 陈艳,岳文胜,罗勇,顾鹏,李晓艳.评价冠心病合并代谢综合征患者心房内和心房间的同步性[J].中国医学影像技术,2012,28(4):700~704 |
| 评价冠心病合并代谢综合征患者心房内和心房间的同步性 |
| Assessment of intraatrial and interatrial synchronicity in coronary artery disease patients with metabolic syndrome |
| 投稿时间：2011-08-20 修订日期：2011-11-13 |
| DOI： |
| 中文关键词: 代谢综合征X 冠状动脉疾病 心房 电-机械收缩时间 |
| 英文关键词:Metabolic syndrome X Coronary disease Heart atria Electromechanical contraction time |
| 基金项目: |
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| 中文摘要: |
| 目的 应用脉冲组织多普勒技术(PW-TDI)和同步ECG观察冠心病合并代谢综合征患者心房内和心房间的电-机械收缩同步性的变化。 方法 将139例冠心病患者分为冠心病合并代谢综合征组(CAD-MS组,n=66)和冠心病不合并代谢综合征组(CAD-NMS组,n=73)。对ECG P波起始点到PW-TDI心房收缩A峰起始点的时间间期进行统计分析,比较两组间心房壁收缩速度和心房各壁的电-机械收缩时间的变化。 结果 与CAD-NMS组相比,CAD-MS组中左右心房各壁心电图P波起始点到PW-TDI心房收缩A峰起始点的时间间期明显延长(P<0.05),左心房前壁运动速度降低,左心房前壁心电图P波起始点到PW-TDI心房收缩A峰起始点时间间期较其他房壁明显延长(P<0.05),左心房前壁与下壁心电图P波起始点到PW-TDI心房收缩A峰起始点电-机械收缩时间差值明显增大(P<0.05)。 结论 冠心病合并代谢综合征患者心房内和心房间的电-机械收缩时间出现延迟,左心房部分房壁存在电-机械传导不同步。 |
| 英文摘要: |
| Objective To investigate changes of intraatrial and interatrial electromechanical contraction function in coronary artery disease (CAD) patients with metabolic syndrome (MS) using pulsed wave Doppler tissue imaging (PW-TDI) and synchronous electrocardiagram (ECG). Methods Totally 139 consecutive CAD patients were divided into CAD with MS (CAD-MS group, n=66) and CAD without MS group (CAD-NMS group, n=73). The time intervals of electromechanical contraction between onset of P wave and onset of A wave in atrial myocardium were measured with PW-TDI and synchronous ECG. Meanwhile, the peak A wave velocity of atrial wall movement was compared. Results The time interval of atrial electromechanical contraction between onset of P wave and onset of A wave in CAD-MS group was significantly longer than that in CAD-NMS group (P<0.05). The movement velocity of left atrial anterior wall in CAD-MS group was lower than that in CAD-NMS group ( cm/s vs cm/s, P<0.05), and the electromechanical contraction time interval of left atrial anterior wall in CAD-MS group was significantly delayed compared with that in CAD-NMS group (P<0.05). The electromechanical contraction time difference between left atrial anterior wall and inferior wall atrium in CAD-MS group was statistically different (P<0.05). Conclusion Intraatrial and interatrial mechanical contraction time is significantly delayed and mechanical desynchrony exists in part of left atrium in CAD with MS patients. |
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