Comparative study the curative effect, ventricular remodeling and cardiac function of patients in different left atria size undergoing valve replacement with " X" ablation of posterior left atrium wall
10.3760/cma.j.cn112434-20210226-00075
- VernacularTitle:瓣膜置换联合左心房后壁"X"型消融在不同左心房大小患者中其消融疗效、心室重构和心功能的对比研究
- Author:
Yang YU
1
;
Yu YAN
;
Lang YU
;
Rui XIONG
;
Hongkun WU
;
Pengling YU
;
Yong HE
;
Hao CHEN
Author Information
1. 中国科学院大学重庆医院 重庆市人民医院心血管外科，重庆 401121
- Keywords:
Left atrium;
Valve replacement;
Atrial fibrillation;
X-type of radiofrequency ablation;
Conversion rate
- From:
Chinese Journal of Thoracic and Cardiovascular Surgery
2022;38(10):609-612
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the influence of left atrial size on the ablation efficacy, cardiac morphology and function after valve replacement combined with X-type radiofrequency ablation on posterior wall of left atrium.Methods:From January 2015 to December 2019, 416 patients with mitral valve disease complicated with atrial fibrillation were divided into two groups according to the size of left atrium(Anteroposterior diameter 60 mm). Valve replacement combined with " X" radiofrequency ablation on posterior wall of left atrium was performed. The clinical data were analyzed retrospectively.Results:Except for the AF types, gender, length of stay and postoperative complications, other clinical data, operative and perioperative indicators were better in small left atria group(SLA)than in large left atria group(LLA). The differences were statistically significant( P<0.05). Fractional shortening(FS), ejection fraction(EF) in SLA at any time point were higher than that in LLA, P<0.05. The sinus rhythm conversion rates, the change rate of LA anteroposterior diameter in SLA at postoperative time points were higher than that in LLA, P<0.05. There was no significant difference of cardiac troponin(cTn) and myoglobin(MYO) between the two groups in 6 months after operation, P>0.05. The B-type natriuretic peptide(BNP), cTn, MYO in the other time points were lower than that in LLA, P<0.05. Conclusion:Larger left atrium reduces the rate of sinus rhythm conversion and maintenance in patients undergoing valve replacement combined with fibrillation ablation. There were worse ventricular remodeling and cardiac function recovery. Preoperative evaluation of left atrial size is helpful for prognosis.
