ARYA Atherosclerosis4320101201ST SEGMENT RESOLUTION IN OPIUM ADDICT PATIENTS AFTER THROMBOLYTIC THERAPY FOR ACUTE MYOCARDIAL INFARCTION6969ENMohammadMasoomiFatemehGhaemiResident of Internal Medicine, Physiology Research Center, Shafa Hospital, Kerman University of Medical Sciences, Kerman.. f_dortaj@yahoo.comAliakbarHaghdostHamidrezaRashidinejad20101201Abstract    BACKGROUND: The aim of this study was to assess resolution of ST segment elevation after streptokinase therapy in opium-addict patients with acute myocardial infarction (AMI).    METHOD AND MATERIALS: The studied population consisted of AMI patients who have criteria for thrombolytic therapy. Three groups of ST segment resolution were defined: complete resolution (≥ 70%), partial resolution (70% to 30%) and no resolution (< 30%).    RESULTS: A total number of 240 patients were studied (126 opium addicts and 114 non-addicts). Overall, 52.5% of addicts and 38.7% of non-addicts had complete ST segment resolution (P = 0.06). The odds of ST elevation resolution in addicts was 1.8 (95%, CI: 1.09-2.95) compared to non-addicts. When it was adjusted for other variables, it reduced to 1.03 (95%, CI: 0.54-1.97).     CONCLUSION: There was not any significant relationship between opium addiction and response to thrombolytic therapy among patients with acute MI.      Keywords: Acute myocardial infarction, opium, streptokinase, substance abuse.