影像科学与光化学 ›› 2022, Vol. 40 ›› Issue (4): 873-877.DOI: 10.7517/issn.1674-0475.220306

• 综述与论文 • 上一篇    下一篇

2D-STI在评价冠心病阵发性房颤患者RFCA术后左心功能中的应用

农俊1, 许键2, 农华平1, 蓝雪丹1   

  1. 1. 南宁市第三人民医院(南宁市心血管专科医院)超声医学科, 广西 南宁 530003;
    2. 南宁市第三人民医院(南宁市心血管专科医院)心内科, 广西 南宁 530003
  • 收稿日期:2022-03-08 发布日期:2022-07-09
  • 通讯作者: 许键

Application of 2D-STI in Evaluating Left Ventricular Function in Patients with Coronary Heart Disease and Paroxysmal Atrial Fibrillation after RFCA

NONG Jun1, XU Jian2, NONG Huaping1, LAN Xuedan1   

  1. 1. Department of Ultrasound Medicine, The Third People's Hospital of Nanning (Nanning Cardiovascular Hospital), Nanning 530003, Guangxi, P. R. China;
    2. Department of Cardiology, The Third People's Hospital of Nanning (Nanning Cardiovascular Hospital), Nanning 530003, Guangxi, P. R. China
  • Received:2022-03-08 Published:2022-07-09

摘要: 本研究探讨二维斑点追踪成像技术(2D-STI)在冠心病阵发性房颤患者经导管射频消融术(RFCA)治疗后的左心功能评估中的价值。选取实施RFCA治疗的78例冠心病合并阵发性房颤患者作为病例组、同期接受2D-STI检查的80例非房颤冠心病患者作为对照组,病例组均接受RFCA治疗,采用二维超声及2D-STI测定两组研究对象的左心功能参数及心肌力学参数。病例组患者的左心室舒张末期内径(LVDd)、二尖瓣反流面积(MRA)、左房舒张末期面积(LAA)、二尖瓣口舒张早期峰值血流速度/二尖瓣环侧壁及间隔壁舒张早期峰值运动速度(E/E')测定值均高于对照组(P<0.05);病例组患者的左室射血分数(LVEF)测定值低于对照组(P<0.05)。病例组患者的收缩期左心房峰值应变(SLAs)及应变率(SRLAs)、舒张早期左心房峰值应变(SLAed)及应变率(SRLAed)、心房收缩期左心房峰值应变(SLAac)及应变率(SRLAac)测定值均低于对照组(P<0.05)。经过RFCA治疗后3个月再次复查,病例组患者的LVDd、MRA、LAA、E/E'测定值均较治疗前显著降低,LVEF值较治疗前显著升高(P<0.05);病例组患者的SLAs、SRLAs、SLAed、SRLAed、SLAac、SRLAac测定值均较术前显著提高(P<0.05)。2D-STI能很好地评估冠心病阵发性房颤患者经RFCA治疗前后左心功能,RFCA治疗冠心病阵发性房颤效果显著。

关键词: 二维斑点追踪成像技术, 冠心病, 阵发性房颤, 经导管射频消融术, 左心功能

Abstract: This study investigated the value of two-dimensional speckle tracking imaging (2D-STI) in the evaluation of left ventricular function in patients with coronary heart disease with paroxysmal atrial fibrillation after radiofrequency catheter ablation (RFCA). A total of 78 patients with coronary heart disease and paroxysmal atrial fibrillation who underwent RFCA treatment were selected as the case group, and 80 patients with non-atrial fibrillation received 2D-STI examination during the same period. Coronary heart disease patients served as the control group, and the case group received RFCA treatment. Two-dimensional ultrasound and 2D-STI were used to measure the left ventricular function parameters and myocardial mechanical parameters of the two groups of subjects. Left ventricular end-diastolic diameter (LVDd), mitral valve regurgitation area (MRA), left atrial end-diastolic area (LAA), forward flow velocity in the early diastole of the mitral valve/early diastolic mitral valve annulus,and the measured values of wind velocity (E/E') in the case group were higher than those in the control group (P<0.05). The measured value of left ventricular ejection fraction (LVEF) in the case group was lower than that in the control group (P<0.05). The systolic left atrial peak strains (SLAs) and strain rates (SRLAs), the early diastolic left atrial peak strains (SLAed) and strain rates (SRLAed), and the atrial systolic left atrial peak strains (SLAac) and strain rates (the measured values of SRLAac) were lower than those of the control group (P<0.05). Re-examination 3 months after RFCA treatment, the measured values of LVDd, MRA, LAA, and E/E' in the case group were significantly lower than those before treatment, and the LVEF value was significantly higher than those before treatment (P<0.05). The measured values of SLAs, SRLAs, SLAed, SRLAed, SLAac, and SRLAac in the case group were significantly higher than those before operation (P<0.05). 2D-STI can well evaluate the left ventricular function of patients with paroxysmal atrial fibrillation of coronary heart disease before and after RFCA treatment, and RFCA has a significant effect on the treatment of paroxysmal atrial fibrillation of coronary heart disease.

Key words: two-dimensional speckle tracking imaging, coronary heart disease, paroxysmal atrial fibrillation, radiofrequency catheter ablation, left ventricular function