Ease and accuracy of ECG interpretation using 12-lead ECG versus a combination of 12-lead and vector ECG (electro-vectorcardiogram) by medical students: A prospective, randomised controlled study

IF 1.3 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS

Journal of electrocardiology Pub Date : 2024-11-22 DOI:10.1016/j.jelectrocard.2024.153830

Tipparaju Hasitha MBBS Intern , Nikhil Singhania MBBS, MD , Suresh Kumar Sukumaran MBBS, MD, DM , Raja J. Selvaraj MBBS, MD, DNB, PDF in Cardiac Electrophysiology

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引用次数: 0

Abstract

Background

The Electrocardiogram (ECG) can be visualised either in a scalar form, as waves in the standard 12‑lead ECG, or vectorially, as vector loops in different planes in the Vectorcardiogram (VCG). An Electro-Vectorcardiogram (ECG-VCG) is a graphic visualization combining scalar and vector ECGs. We aimed to assess if integrating the scalar 12‑lead ECG and vector ECG makes ECG interpretation by medical students more accurate, faster, and easier than using 12‑lead ECG alone.

Methods

Undergraduate medical students were randomised into ECG group and ECG-VCG group. The students received a web-based tutorial followed by a test. The ECG group were taught with and had to interpret standard 12‑lead ECG images, while the ECG-VCG group were taught and had to interpret ECG-VCG images with two-dimensional VCG panels (frontal and horizontal) of the same diagnosis. On completion, participants reported their ease of interpretation as grades. Test scores, time taken and ease were compared between the groups.

Results

The study included 296 medical students. The primary outcome, interpretation accuracy (test score out of 10), was significantly greater in the ECG-VCG group (7.34 ± 2.13 vs 6.09 ± 2.34, p < 0.001). The time taken for interpretation was significantly lower and ease of interpretation was significantly greater in the ECG-VCG group.

Conclusion

The use of ECG-VCG to teach undergraduate medical students can outperform the 12‑lead ECG in terms of accuracy, speed and ease.

Abstract Image

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医学生使用 12 导联心电图与 12 导联和矢量心电图（矢量心电图）组合进行心电图解读的难易程度和准确性：前瞻性随机对照研究

背景心电图（ECG）既可以标量形式可视化，如标准 12 导联心电图中的波，也可以矢量形式可视化，如矢量心电图（VCG）中不同平面上的矢量环。矢量心电图（ECG-VCG）是将标量心电图和矢量心电图相结合的图形可视化。我们的目的是评估整合标量 12 导联心电图和矢量心电图是否比单独使用 12 导联心电图更准确、更快速、更方便医学生解读心电图。学生们先接受网络教学，然后进行测试。心电图组通过标准的 12 导联心电图图像进行学习和判读，而心电图-VCG 组则通过二维 VCG 面板（正面和水平）进行学习和判读相同诊断的心电图-VCG 图像。完成后，参与者以分数形式报告解读的难易程度。研究包括 296 名医科学生。主要结果是，心电图-VCG 组的判读准确性（满分 10 分的测试得分）明显更高（7.34 ± 2.13 vs 6.09 ± 2.34，p < 0.001）。结论使用心电图-VCG 对本科医学生进行教学，在准确性、速度和简便性方面均优于 12 导联心电图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of electrocardiology 医学-心血管系统

CiteScore

2.70

自引率

7.70%

发文量

152

审稿时长

38 days

期刊介绍： The Journal of Electrocardiology is devoted exclusively to clinical and experimental studies of the electrical activities of the heart. It seeks to contribute significantly to the accuracy of diagnosis and prognosis and the effective treatment, prevention, or delay of heart disease. Editorial contents include electrocardiography, vectorcardiography, arrhythmias, membrane action potential, cardiac pacing, monitoring defibrillation, instrumentation, drug effects, and computer applications.