The Relationship between Heart Function Grading and the Degree of Coronary Artery Stenosis in Patients with Coronary Heart Disease Based on Cardiac Ultrasound

ZHAO Ying

doi:10.3969/j.issn.1672-7185.2024.08.020

Abstract：Objective To analyze the relationship between heart function grading and the degree of coronary artery stenosis in patients with coronary heart disease based on cardiac ultrasound.Methods One hundred and seventeen patients with coronary heart disease were included in Zhangye People's Hospital Affiliated to Hexi University from December 2021 to December 2023.According to echocardiography examination,there were 26 cases of Grade Ⅰ heart function,40 cases of Grade Ⅱ heart function,25 cases of Grade Ⅲ heart function,and 26 cases of Grade Ⅳ heart function.According to coronary angiography,there were 38 cases of mild stenosis,45 cases of moderate stenosis,and 34 cases of severe stenosis.The cardiac ultrasound indicators of patients with different concentric functional grades and different degrees of coronary stenosis were compared,and their correlation between cardiac function and degree of coronary stenosis were analyzed.Results With the increase of cardiac function grading,left ventricular ejection fraction(LVEF)gradually decreased,left ventricular end systolic volume(LVESV)and left ventricular end diastolic volume(LVEDV)gradually increased(P<0.05).The correlation analysis showed that LVEF was negatively correlated with cardiac function grading,while LVESV,LVEDV were positively correlated with cardiac function grading(P<0.05).With the increases of the degree of coronary artery stenosis,LVEF gradually decreases,while LVESV and LVEDV gradually increase(P<0.05).The correlation analysis showed a negative correlation between LVEF and the degree of coronary stenosis,while LVESV and LVEDV were positively correlated with the degree of coronary stenosis(P<0.05).Conclusion LVEF,LVESV,LVEDV are all related to the cardiac function grading and degree of coronary stenosis in patients with coronary heart disease.Performing echocardiography on patients can provide accurate basis for the diagnosis and treatment of coronary heart disease.