Background & Objectives: Cardiovascular disease is the most important cause of death in the world. Statistics shows that mortality and morbidity from cardiovascular disease in Iran is going up, so quality of management and treatment of these patients need to be better. For these reasons, determination of survival rates and factors affecting it is important and is also the aim of this study.

  Methods: This is a survival analytic prospective study, done on 800 patients, admitted in Ardabil Bouali Hospital CCU. All of the patients were followed up one year and a questionnaire about them was obtained. Statistical analysis was done with SPSS. For survival analysis Kaplan Maier, life table, logReng test and Cox regressions model were used.

 Results: Mean age of patients was 60.6±12.4 years. Total number of mortality in one year was 84 persons (10.5%). 582 patients were men and 218 were women. 47.4% were smokers, 33.4% had hypertension, 18.1% had diabetes mellitus, 15.3% had hyperlipidemia and 30% had arrhythmia. Survival rate in the first 10 days, 28 days and one year were 94%, 93% and 90% respectively.

 Conclusion: Factors that affected survival in Cox regress ional model were: diabetes mellitus, age, use of streptokinase, left ventricular ejection fraction, heart rate and heart block. Knowledge from survival rates and relative risks can help health managers in better health service preparation.