Korean J Intern Med.  2007 Jun;22(2):87-92. 10.3904/kjim.2007.22.2.87.

The Epidemiological and Clinical Characteristics of Patients Admitted for Coronary Angiography to Evaluate Ischemic Heart Disease

• Park JS
• Lee HJ
• Kim YJ
• Seong IW
• Lee JW
• Kim CJ
• Cho JM
• Cho MC
• Bae JW
• Jeong MH
• Ahn YK
• Han KR
• Lee JH
• Kim MH

• KMID: 1091867
• DOI: http://doi.org/10.3904/kjim.2007.22.2.87

Abstract

BACKGROUND: Most of the known risk factors associated with ischemic heart disease are based on studies from Western countries; there is only limited information on Korean populations. This study was designed to analyze age related differences in epidemiologic and clinical characteristics in patients who were admitted for coronary angiography for the evaluation of ischemic heart disease. METHODS: As part of the multicenter KCAR (Korean Coronary Artery disease Registry) Study, the clinical data of 6,549 patients, who were evaluated at the cardiac catheterization laboratory by coronary angiography, at seven university hospitals in Korea from March 1999 to December 2005, were registered into the KCAR database and analyzed. All patients were divided into three groups according to age: age < or =40, age 41-70 and age > or =71. All demographic and coronary angiographic features were analyzed for the different groups. RESULTS: The demographic data showed that compared to the older patients young patients < or =40 had a higher prevalence of males and smokers, but a lower prevalence of hypertension, diabetes and prior history of stroke and myocardial infarction. For the lipid profiles, the younger patients had much higher levels of total cholesterol, triglycerides and LDL-cholesterol than the older groups; however, there was no difference in the HDL-cholesterol levels among the three age groups. The most common component of the metabolic syndrome was obesity (79%) in the younger patients and hypertension (92%) in the older patients. The most common reason for presentation was ST-segment elevated myocardial infarction in the younger patients and unstable angina in the older patients. CONCLUSIONS: Ischemic heart disease in younger adults < or =40 had different demographic characteristics and clinical presentation than older patients.

Keyword

Ischemic heart disease; Epidemiologic study characteristics

MeSH Terms

Adult
Age Factors
Aged
*Coronary Angiography
Diabetes Complications/epidemiology
Female
Hospitals, University
Humans
Hypertension/epidemiology
Korea/epidemiology
Male
Metabolic Syndrome X/epidemiology
Middle Aged
Myocardial Ischemia/*diagnosis/*epidemiology/radiography
Prevalence
Prospective Studies
Registries
Risk Factors
Smoking