Background: Out of the total number of patients admitted in coronary care unit (CCU) with acute coronary syndrome (ACS), 75 -85% presented with conventional risk factors. On the other hand, lipid profile modification after a cardiovascular event related to acute coronary syndrome has also been recognized. But there are controversies regarding the temporary changes in lipid profile after ACS. In our country, there are limited studies about the basal characteristics of lipid profile and the variability of its components after an ACS.