The study is conducted with the subjects who have undergone coronary angiography to examine the influential factors for the severity of coronary stenosis.
Four indicators related to metabolic syndrome and brachial-ankle index were used as influential factors. Then, echocardiography was performed to analyze the left ventricular ejection fraction and peak aortic valve blood flow velocity. As a result of the study, metabolic syndrome such as diabetes and dyslipidemia had 3.3 times and 7.7 times higher chance to lead to 1VD, respectively. In 2VD, diabetes showed 2.9 times higher risk, and dyslipidemia showed 8.5 times higher risk. In 3VD, diabetes was found to be 5 times higher and dyslipidemia was 17.5 times higher in risk.
The brachial-ankle index showed 3.5 times higher risk to have 1VD, based on a value lower than 0.9. In 2VD, the risk was 5.9 times higher, and in 3VD, it was 6.1 times higher.
According to the echocardiography results, patients who had lower value than normal range in terms of ejection fraction of left venticrle showed that they are 3.3 times more likely to have 3VD.
Therefore, it was confirmed that dyslipidemia showed the highest correlation among metabolic syndromes. Ankel-brachial index, which is peripheral vascular test, showed a strong positive correlation with the risk. In 3VD, changes in left ventricular ejection fraction were also observed. It was confirmed that aortic valve peak blood flow rate was increased by 2.2 times in the study subjects with coronary artery stenosis.
According to this study, it was confirmed that diabetes, dyslipidemia, brachial-ankle index, and left ventricular ejection franction were closely related to the influential factors for coronary artery stenosis.