Increased Prevalence of Chronic Kidney Disease in Subjects Undergoing Coronary Angiography

Abstract

Purpose:The prevalence of Chronic Kidney Disease (CKD) is increasing worldwide and was recently reported to be up to 13.7% in general population in Korea. The purpose of this study was to investigate the prevalence of CKD in subjects undergoing coronary angiography (CAG). Methods:Six hundred six subjects who underwent CAG in Korea University Anam Hospital during the time frame of 4 months were included and prevalence of CKD was estimated by using K/DOQI guideline with MDRD equation. Coronary artery disease was defined as one or more significant stenosis (50% or more) at CAG. Results:The prevalence of CKD was 36.4%. The proportion of hypertension and diabetes, the well- known risk factors of CKD were not different with general population. The prevalence of coronary artery disease was not different between two groups with or without CKD. Conclusion:The prevalence of CKD in subjects who undergo CAG is higher than that in general population (36.4% vs. 13.7%). It seems to be related with or other factors than hypertension and diabetes. Subsequently, using contrast media to this population might carry a higher risk of developing contrast induced acute kidney injury. More attention to assessing kidney function before CAG in this population is needed.