Characteristics of real-time three-dimensional echocardiography of the left ventricle after catheter ablation for atrial fibrillation
10.3760/cma.j.cn341190-20230222-00127
- VernacularTitle:心房颤动行导管消融术后左心室实时三维超声心动图特征分析
- Author:
Yi CHEN
1
;
Jin XIE
Author Information
1. 诸暨市中医医院超声科，诸暨 311800
- Publication Type:Journal Article
- Keywords:
Echocardiography,stress;
Ultrasonography,doppler,color;
Atrial fibrillation;
Catheter ablation;
Ventricular function,left;
Prognosis;
Recurrence
- From:
Chinese Journal of Primary Medicine and Pharmacy
2025;32(2):161-165
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe the changes in left ventricular real-time three-dimensional echocardiography (RT-3DE) parameters in patients with atrial fibrillation (AF) who have different prognoses after catheter ablation, providing evidence for using RT-3DE to assess the condition and prognosis of paroxysmal atrial fibrillation (PAF) and persistent atrial fibrillation (PEAF).Methods:This case-control study included 70 patients with PAF and 70 patients with PEAF, all of whom were diagnosed and treated with catheter ablation at Traditional Chinese Medical Hospital of Zhuji from June 2018 to December 2022. All AF patients underwent RT-3DE examinations both before and 3 months after catheter ablation. We compared the changes in left ventricular RT-3DE parameters before and after catheter ablation among different types of AF and patients with varying prognoses.Results:Before catheter ablation, patients with PAF had a left ventricular end-diastolic volume of (31.68 ± 2.89) mL, which was significantly lower than that in patients with PEAF [(35.59 ± 3.26) mL, t = -6.33, P < 0.001]. Additionally, the left ventricular ejection fraction in PAF patients was (64.41 ± 5.87)%, which was significantly higher than that in PEAF patients [(58.62 ± 5.63)%, t = 5.93, P < 0.001]. After catheter ablation, both PAF and PEAF patients showed significant reductions in left ventricular end-diastolic diameter, left ventricular end-systolic diameter, left ventricular end-diastolic volume, left ventricular end-systolic volume, early diastolic peak flow velocity of the mitral valve (E), and the ratio of E to the peak velocity of early mitral annular motion (e′) compared with corresponding preoperative values ( t = -5.12, -5.47, -4.63, -4.25, -17.44, -18.06, -13.57, -14.66, 4.27, 7.52, -6.86, -4.96, 6.35, 5.81, all P < 0.001). Conversely, left ventricular ejection fraction and the e′ significantly increased compared with corresponding preoperative values ( t = -9.85, -8.78, both P < 0.001). In patients who experienced recurrence of AF after catheter ablation, the preoperative e′ values were significantly higher compared with those in patients without recurrence of AF, while the E/e′ values were significantly lower in patients who experienced recurrence of AF than those who did not ( t = 10.53, 9.84, -15.47, -15.32, all P < 0.001). Conclusions:The RT-3DE parameters, such as e' and E/e', differ between patients with and without recurrence of AF after catheter ablation. Monitoring left ventricular structure and function using RT-3DE combined with tissue Doppler technology has potential value for assessing clinical differences between patients with PAF and PEAF and predicting the prognosis of AF after catheter ablation.
