非体外循环冠状动脉搭桥术前后左心房功能的超声心动图研究  

Study on the Changes of Left Atrial Function Before and After Off-pump Coronary Artery Bypass Using Echocardiography

作　　者：赵林[1] 康维强[2] 杨健[2] 贾三庆[1] 滕一星[1] 宁静[1] 

机构地区：[1]首都医科大学附属北京友谊医院心血管病诊疗中心,北京市100050 [2]青岛海慈医院心内科

出　　处：《中国超声医学杂志》2005年第11期821-823,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用经胸超声心动图(TTE)声学定量技术(AQ)检测非体外循环冠状动脉搭桥术(OPCAB)前后左心房功能的变化。方法应用TTE的AQ技术检测46例行OPCAB患者术前和术后左心房功能各指标,并检测60例正常人作对照。结果OPCAB患者术前与正常对照组比较,左房各时相容积、左房射血分数和左房射血量均明显增高(P<0.01)。OPCAB后左房各时相容积减小(P<0.05～0.01),而左房射血分数和左房射血量明显增加(P<0.05～0.01)。结论AQ技术可定量检测左房储备和收缩功能;OPCAB术后左心房功能得到明显恢复。Objective To investigate the changes of left atrial function before and after Off-pump coronary artery bypass （OpGAB） using transthoracic echocardiography （TTE） and acoustic quantification （AQ）. Methods Indices reflecting left atrial function were detected in 46 patients undergone OPCAB （OPCAB group） using TTE combined with AQ. All the measurements were repeated in 60 normal subjects （control group） .The data were compared between OPCAB and control group, pre-and post-OPCAB. Results Left atrial volumes, left atrial ejection fraction （LAEF） and left atrial stroke volume （LASV） of OPCAB group were obviously higher than control group （ P〈0. 01） . Compared with pre-OPCAB, LAEF and LASV had increased obviously post-OPCAB （P〈0.05-0.01） but left atrial volumes decreased （P〈0. 05-0. 01） . Conclusions TTE combined with AQ is a reliable method to detect the left atrial function quantitatively. Left atrial function has begun recovering immediately after OPCAB.

关 键 词：非体外循环冠状动脉搭桥术 左心房功能 超声心动图 收缩功能 储备功能 射血分数 

分 类 号：R445.1[医药卫生—影像医学与核医学]