The Impact of New-onset Heart Conduction Blocks After Transcatheter Aortic Valve Replacement on the Heart Conduction at 1-year Follow-up
10.3969/j.issn.1000-3614.2025.02.008
- VernacularTitle:经导管主动脉瓣置换术后新发不同程度心脏传导阻滞对一年后心脏传导的影响
- Author:
Jifang MA
1
;
You ZHOU
1
;
Xiaobiao ZANG
1
;
Weifeng SONG
1
;
Ke CHEN
1
;
Zhihan ZHAO
1
;
Xianqing WANG
1
;
Yonghui ZHAO
1
;
Haixia FU
1
Author Information
1. 国家心血管病中心华中分中心 河南心血管病中心 阜外华中心血管病医院 郑州大学华中阜外医院 心内科,郑州 450046
- Publication Type:Journal Article
- Keywords:
transcatheter aortic valve replacement;
pacemaker;
atrioventricular block;
arrhythmia;
elderly
- From:
Chinese Circulation Journal
2025;40(2):164-169
- CountryChina
- Language:Chinese
-
Abstract:
Objectives:This study aims to explore the impact of new-onset heart conduction block post transcatheter aortic valve replacement(TAVR)on the cardiac conduction status during 1-year follow-up.Methods:A total of 130 patients who completed TAVR surgery at Fuwai Central-China Cardiovascular Hospital from July 2019 to October 2022 were screened.Among them,56 cases with postoperative heart conduction block were selected for analysis.According to the degree of heart block,patients were divided into mild block group(n=36),moderate block group(n=9),and severe block group(n=11).The clinical characteristics and cardiac conduction conditions at 1-year follow-up between different groups were compared.Results:During a mean(8.5±4.1)months follow-up period,10(17.9%)patients had long-term atrioventricular conduction block,and 46(82.1%)patients had partial or complete recovery of heart block,with 28(50.0%)patients with completely recovered cardiac conduction.In the mild block group,22(61.1%)cases were completely recovered,9(25.0%)patients partly recovered,and 5(13.9%)cases uncovered.In the moderate block group,2(22.2%)cases were completely recovered,5(55.6%)patients partly recovered,and 2(22.2%)cases uncovered.Difference in long-term atrioventricular conduction block among three groups was statistically significant(P<0.001).The Kaplan-Meier curve shows that patients with moderate to severe heart block have a higher rate of long-term atrioventricular conduction block(86.1%vs.77.8%vs.72.7%,log-rank P=0.03).Cox multivariate analysis exhibited that old age(≥75 years old,HR=1.204,95%CI:1.051-1.525,P=0.041)and severe heart conduction block(HR=1.106,95%CI:1.100-1.616,P=0.031)are the two independent risk factors for long-term atrioventricular conduction block post TAVR.Conclusions:The ratio of complete cardiac conduction recovery post TAVR is 50.0%.Older age(≥75 year)and new-onset severe heart conduction block are independent risk factors for long-term atrioventricular conduction block post TAVR procedure.
