<![CDATA[Acute coronary syndrome (ACS) is the multisystem of coronary artery disease. The clinical manifestation of ACS is acute myocardialinfarction (AMI). About 90% coronary attack is caused by thrombus occlusion in coronary artery. The suspect of thrombosis can bediagnosed definitely by Angiography, but it is invasive. D-dimer used to measure thrombosis abnormality and fibrinolisys. The result oftheir correlation between D-dimer with ACS is still controversived. The aim of this research is to analyse, the different between plasmaD-dimer level ACS with stenosis ≥ 50% and stenosis < 50%. This study used a cross sectional design. The study consist of seventeenspecimen ACS with stenosis ≥ 50% and 17 specimen with stenosis < 50%. Plasma D-dimer level was measured with quantitativeagglutination latex method. An independent t-test statistical analysis is used in this study. The average Plasma D-dimer of ACS withstenosis ≥ 50% is 960.2 ± 404.99 µg/L thus ACS with stenosis < 50% is 300.3 ± 128.75 µg/L (p = 0.00). The plasma D-dimer levelof ACS with stenosis ≥ 50% is more significant than ACS with stenosis < 50%.]]>
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