Quantitative evaluation of morphology and function of left atrial appendage in atrial fibrillation patients with real-time three-dimensional transesophageal echocardiography
10.13929/j.issn.1672-8475.2020.05.006
- VernacularTitle: 实时三维经食管超声心动图定量评价心房颤动患者左心耳形态及功能
- Author:
Biaohu LIU
1
Author Information
1. Department of Ultrasound, Institute of Ultrasound of Wannan Medical College, Yijishan Hospital of Wannan Medical College
- Publication Type:Journal Article
- Keywords:
Atrial fibrillation;
Echocardiography, transesophageal;
Left atrial appendage
- From:
Chinese Journal of Interventional Imaging and Therapy
2020;17(5):280-284
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the feasibility of quantitative assessment of the left atrial appendage (LAA) morphology and function in atrial fibrillation (AF)patients with real-time three-dimensional transesophageal echocardiography (RT-3D-TEE). Methods: Totally 56 patients with paroxysmal AF (paroxysmal group), 26 patients with sustained AF (sustained group) and 11 healthy controls (control group) were enrolled. RT-3D-TEE was used to measure LAA parameters of 3 groups. Results: Compared with control group, LAA end-diastolic volume (LAA-EDV), end systolic volume (LAA-ESV), opening maximum area (Amax) and minimum area (Amin) of paroxysmal group increased, while LAA ejection fraction (LAA-EF), maximum evacuation speed (Vep), area change rate (A%) and diameter change rate (D%) of paroxysmal group decreased (all P<0.05). The sustained group LAA-EDV, LAA-ESV, Amax, Amin increased, LAA-EF, Vep, A%, D% decreased (all P<0.05). There was no significant difference between paroxysmal group and sustained group (all P>0.05). LAA-EF was negatively correlated with ESV (r=-0.73, P<0.01), EDV (r=-0.64, P<0.01), Amax (r=-0.36, P<0.01) and age (r=-0.27, P=0.02), positively correlated with A%, D% and Vep (r=0.86, 0.74, 0.55, all P<0.01), but not significantly correlated with Dmax (P>0.05). Conclusion :RT-3D-TEE can quantitatively analyze the changes of LAA morphology and function, and has certain clinical significance for evaluating the condition of AF patients.
