The value of smart watch in diagnosis of atrial fibrillation and left bundle branch block after transcatheter aortic valve replacement

doi:10.3877/cma.j.issn.2095-6568.2023.01.005

Abstract

Abstract:

Objective

To explore the value of smart watch in diagnosis of atrial fibrillation (AF) and left bundle branch block (LBBB) after transcatheter aortic valve replacement (TAVR).

Methods

The patients who underwent trans-femoral TAVR in the Department of Cardiology, The Second Affiliated Hospital Zhejiang University School Of Medicine from July 2020 to March 2021 were included in this study. Electrocardiograms and single-lead electrocardiograms which were recorded by smart watch were analyzed before and after procedure. Receiver operating characteristic (ROC) curve was used to analysis the sensitivity and specificity of a smart watch in the diagnosis of AF and LBBB after TAVR.

Results

A total of 202 patients were enrolled, including 117 male patients with an average age of (73.52±7.69) years. The sensitivity for diagnosing AF and LBBB was 88% and 84% respectively. In a total of 380 electrocardiograms recorded by smart watch, 4 false positives and 6 false negatives were happened in diagnosis of AF, while 10 false positives and 7 false negatives in identifing left bundle branch block.

Conclusion

The sensitivity and specificity of smart watch in diagnosis of AF and LBBB in patients after TAVR are high. It can be considered identifying AF and LBBB after TAVR with smart watch.

Key words: Atrial fibrillation, Transcatheter aortic valve replacement, Smart watch, Left bundle branch block

Mengqiu Dang, Jiaqi Fan, Hanyi Dai, Jun Chen, Ranxi Li, Jianguo Li, Cheng Li, Yuchao Guo, Xianbao Liu, Jianan Wang. The value of smart watch in diagnosis of atrial fibrillation and left bundle branch block after transcatheter aortic valve replacement[J]. Chinese Journal of Heart and Heart Rhythm(Electronic Edition), 2023, 11(01): 24-27.

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URL: https://zhxzyxldzzz.cma-cmc.com.cn/EN/10.3877/cma.j.issn.2095-6568.2023.01.005

https://zhxzyxldzzz.cma-cmc.com.cn/EN/Y2023/V11/I01/24

Figures/Tables 3

项目	数值
男［例（%）］	117（57.92）
年龄（岁， $x ¯ ± s$ ）	73.52±7.69
12导联体表心电图（例）	380
术前	200
心房颤动	26
左束支传导阻滞	5
术后1 d内	180
心房颤动	24
左束支传导阻滞	40
智能手表单导联心电图（例）	380
术前	200
心房颤动	25
左束支传导阻滞	2
术后1 d内	180
心房颤动	23
左束支传导阻滞	46

项目	数值
男［例（%）］	117（57.92）
年龄（岁， $x ¯ ± s$ ）	73.52±7.69
12导联体表心电图（例）	380
术前	200
心房颤动	26
左束支传导阻滞	5
术后1 d内	180
心房颤动	24
左束支传导阻滞	40
智能手表单导联心电图（例）	380
术前	200
心房颤动	25
左束支传导阻滞	2
术后1 d内	180
心房颤动	23
左束支传导阻滞	46

智能手表判断	心房颤动		左束支传导阻滞
智能手表判断	12导联心电图阴性	12导联心电图阳性	12导联心电图阴性	12导联心电图阳性
阴性	326	6	325		7
阳性	4	44	10		38

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