Relationship between lipids and angiographically defined coronary artery disease in Japanese patients

Area of Science:

• Cardiology
• Lipidology
• Public Health

Background:

• Coronary artery disease (CAD) remains a leading cause of mortality worldwide.
• Lipid profiles are established risk factors for cardiovascular disease.
• Understanding the specific relationship between lipid levels and CAD severity in diverse populations is crucial for risk stratification.

Purpose of the Study:

• To investigate the association between lipid profiles and the severity and extent of coronary artery disease.
• To evaluate the correlation between lipid quartile distribution and significant CAD.
• To determine the relationship between the number of stenotic vessels and specific lipid parameters.

Main Methods:

• Coronary angiography was performed on 120 Japanese male patients.
• Lipid profiles, including total cholesterol (TC) and high-density lipoprotein cholesterol (HDL-C), were analyzed.
• Patients were grouped by lipid quartiles and the number of vessels with marked coronary artery stenosis.

Main Results:

• A higher percentage of patients with significant CAD was observed with increasing total cholesterol (TC) levels.
• Decreasing high-density lipoprotein cholesterol (HDL-C) levels were associated with increased CAD severity.
• Increased TC and TC/HDL-C ratios, along with decreased HDL-C, correlated with a greater number of stenotic vessels.

Conclusions:

• Lipid profiles, particularly total cholesterol and HDL-C, are significantly associated with the severity and extent of coronary artery disease in Japanese men.
• While TC and HDL-C are important indicators, triglyceride levels, hypertension, and smoking did not show significant associations with angiographic findings in this cohort.
• These findings highlight the importance of lipid management in preventing and managing CAD.