摘要
目的采用三维斑点追踪成像(3D-STI)技术评价阵发性房颤(PAF)患者射频消融术前后左心室收缩功能的变化。方法 35例行射频消融术的PAF患者术前、术后3～6个月期间在窦性心律下完成常规及三维超声心动图检查,选择30例健康体检者作为正常对照,采用3D-STI技术获取左心室整体纵向应变(GLS)、整体环向应变(GCS)、整体径向应变(GRS)、整体面积应变(GAS)。结果 PAF组手术前后LA、E/e’比值无明显变化,均较正常对照组增大(P <0.05)。PAF组LV、LVEDV、LVESV、LVEF正常,手术前后无变化,与正常对照组相比差异无统计学意义(P> 0.05)。与正常对照组相比,PAF组术前GLS、GAS降低(P <0.05),GCS、GRS差异无统计学意义(P> 0.05)。与术前相比,PAF组术后3～6个月随访时GAS增加(P <0.05),GLS、GCS、GRS无明显变化(P> 0.05)。结论 PAF患者在LVEF正常时已发生收缩功能的改变,3D-STI技术可敏感地反映其左心室心肌形变、收缩功能的降低。
Objective To evaluate left ventricular(LV)systolic function in patients with paroxysmal atrial fibrillation(PAF) after catheter ablation by three-dimensional speckle tracking imaging(3D STI). Methods A total of 35 patients with PAF who underwent catheter ablation were enrolled in this study. The participants underwent standard echocardiography and 3D-STI three to six months before and after the operation. 30 healthy volunteers were enrolled as controls. 3D-STI was used to obtain global longitudinal strain(GLS),global circumferential strain(GCS),global radial strain(GRS),and global area strain(GAS). Results The LA and E/e?? ratio in PAF group showed no significant difference before and after the operation,but were increased compared with controls. There were no significant differences between PAF group and control group in LV,left ventricular end-diastolic volume(LVEDV),left ventricular end-systolic volume(LVESV)and left ventricular ejection fraction(LVEF)before and after the operation. Compared with control group,GLS and GAS in PAF group were significantly decreased. GAS in PAF group three to six months after catheter ablation was significantly increased. Conclusions Although with normal LVEF,LV systolic function is impaired in patients with PAF. 3D-STI technique could sensitively reflect the decline in LV myocardial deformation and systolic function.
作者
文鹤龄
陈宇
梁中书
WEN Heling;CHEN Yu;LIANG Zhongshu(Department of Cardiology,Hospital of the University of Electronic Science and Technology of China,Sichuan ProvincialPeople's Hospital,Chengdu 610072,China)
出处
《实用医学杂志》
CAS
北大核心
2019年第3期467-470,共4页
The Journal of Practical Medicine
基金
国家自然科学基金资助项目(编号:81600259)
四川省人民医院青年博士基金资助项目(编号:30305030829)
关键词
三维斑点追踪
阵发性房颤
左心室
收缩功能
three-dimensional speckle tracking imaging
paroxysmal atrial fibrillation
left ventricu- lar
systolic function
