The Application Efficiency of Dynamic Electrocardiogram in Predicting Coronary Artery Lesions in Patients with Coronary Heart Disease and Heart Failure

YanHua Zhao

doi:10.47297/wspbdsWSP2752-630542.20260601

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The Application Efficiency of Dynamic Electrocardiogram in Predicting Coronary Artery Lesions in Patients with Coronary Heart Disease and Heart Failure

Volume 6, Issue 1

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The Application Efficiency of Dynamic Electrocardiogram in Predicting Coronary Artery Lesions in Patients with Coronary Heart Disease and Heart Failure
The Application Efficiency of Dynamic Electrocardiogram in Predicting Coronary Artery Lesions in Patients with Coronary Heart Disease and Heart Failure
Department of ECG Diagnosis, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, 443003, China
Vol. 6, Issue 1, Pages: 191-194(2026)
Published：30 March 2026
DOI：10.47297/wspbdsWSP2752-630542.20260601
Accepted：

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Zhao YanHua.The Application Efficiency of Dynamic Electrocardiogram in Predicting Coronary Artery Lesions in Patients with Coronary Heart Disease and Heart Failure[J].Biomedical Data Science,2026,06(01):191-194.
DOI：

Zhao YanHua.The Application Efficiency of Dynamic Electrocardiogram in Predicting Coronary Artery Lesions in Patients with Coronary Heart Disease and Heart Failure[J].Biomedical Data Science,2026,06(01):191-194. DOI： 10.47297/wspbdsWSP2752-630542.20260601.

摘要

Abstract

To analyze the application efficiency of dynamic electrocardiogram in predicting coronary artery lesions in patients with coronary heart disease and heart failure.

Methods

150 patients with coronary heart disease and heart failure who were examined in the ECG Diagnosis Department of Yichang Central People's Hospital from July 2024 to December 2025 were selected as the research group

and 150 volunteers who were examined in the hospital during the same period were selected as the control group. Both groups were examined by dynamic electrocardiogram. The ECG parameters of patients with single or multiple coronary artery disease in the two groups and the observation group were compared

and the relationship between coronary artery disease and ECG was analyzed.

Results

The QRS voltage in the study group was significantly lower than that in the control group

and the QTc interval and QRS time limit were significantly higher than that in the control group (P < 0.001). The QRS voltage of patients with multi-vessel coronary artery disease in the study group was significantly lower than that of patients with single vessel disease

and the QTc interval and QRS time limit were significantly higher than that of patients with single vessel disease (P < 0.001). There is a significant correlation between coronary artery disease and the parameters of dynamic electrocardiogram. QRS voltage is negatively correlated with the degree of disease

while QTc interval and QRS time limit are positively correlated with the degree of disease.

Conclusion

QRS voltage

QTc interval and QRS time limit of dynamic electrocardiogram can effectively distinguish patients with coronary heart disease and heart failure from healthy people

and are closely related to the severity of coronary artery disease

which can be used as a noninvasive and convenient reference index for clinical prediction of coronary artery disease in patients with coronary heart disease and heart failure.

关键词

Keywords

references

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