摘要
目的:研究应用二维斑点追踪显像(2D-STI)技术对不同构型高血压患者左室长轴方向心肌收缩后收缩(PSS)的现象。方法:将60例原发性高血压患者按照不同构型分为左室正常构型组(LVN组)22例,左室重构组(LVR组)38例,对照组30例,运用2D-STI技术检测左室壁心肌运动,记录收缩期峰值速度(Vs)、PSS节段数及PSS峰值速度(Vpss)。结果:LVN组和LVR组PSS阳性率及Vpss与对照组比较差异有统计学意义(P<0.05),均表现为LVR组>LVN组>对照组。结论:2DSTI技术检测高血压患者PSS的出现,提示局部心肌存在相对缺血,是导致舒张功能减低的早期表现。
Objective： To evaluate the phenomenon of the postsystolic shortening in essential hypertension patients with different left ventricular pattern by two-dimensional speckle tracking imaging. Methods： Sixty patients with essential hypertension were divided into two subgroups based on left ventricular configura- tion, including Left ventricle normal geometric（LVN group, n =22）and Left ventrieular remodeling（LVR group, n =38）. 30 normal subjects were enrolled. Detected myocardial movement of Left ventricular by 2D-STI, record the peak velocity of contraction, number of PSS and the peak velocity of PSS. Results： The positive rate and peak velocity of PSS in hypertension were significantly different from the control group, which showed as LVN group 〉LVN group 〉controls. Conclusion： PSS in patients with essential hyperten- sion reminder that there are relative myocardial ischemia in parts of the myocardium. It＇s a early sign of di- astolic function reduce.
出处
《广西医科大学学报》
CAS
2015年第1期77-79,共3页
Journal of Guangxi Medical University
基金
广西壮族自治区卫生厅科研课题资助项目(No.Z2013029)
关键词
高血压
二维斑点追踪显像技术
收缩后收缩
左心室
hypertension
two-dimensional speckle tracking imaging
postsystolic shortening
Left Ven-tricular
