International Journal of Clinical Research

Objective To analyze the relationship between the diagnostic efficacy of electrocardiogram repolarization parameters and cardiac function in patients with acute myocardial infarction. Methods The start time of this study was January 2024 and the end time was December 2024. A total of 80 patients were included. These 80 patients were diagnosed with acute myocardial infarction and served as the experimental group of this study. Meanwhile, 80 patients who underwent coronary angiography due to chest pain and chest tightness during the same period but did not have acute myocardial infarction were selected as the control group of this study. All patients were provided with 24-hour ambulatory electrocardiogram examination, and the electrocardiogram repolarization parameters of the two groups were compared. Cardiac function indicators, to determine their diagnostic efficacy; Clarify the relationship with cardiac function. Results The electrocardiogram repolarization parameters in the experimental group were longer than those in the control group, p<0.05. The LVEF level of cardiac function in the experimental group was lower than that in the control group, p<0.05. The LVESD and LVEDD levels in the experimental group were higher than those in the control group, p<0.05. The combined diagnosis of electrocardiogram repolarization parameters had a higher diagnostic efficacy, p<0.05. Determine the correlation. The electrocardiogram repolarization parameters were negatively correlated with the LVEF level of the patients and positively correlated with LVESD and LVEDD, with p<0.05. Conclusion The electrocardiogram repolarization parameters of patients with acute myocardial infarction are related to the cardiac function level of the patients, providing a basis for the diagnosis of patients.

Electrocardiogram repolarization parameters; Acute myocardial infarction; Diagnostic efficacy; Cardiac function