GOAL: To test the prevalence and types of nosocomial infections, as well as the frequency rate of resistant kinds in patients that have undergone a surgical procedure in the Polyclinic for cardiovascular diseases 'Magdalena'. EXAMINEES AND METHODES: The research included all patients treated in the intensive care unit, in the time period between 1st January 2020 and 31st December 2020, that have undergone a cardiac and/or vascular surgery, and have also contracted and developed a certain hospital-acquired infection. The dana was collected from the medical records as well as the hospital's information's system. They have been analyzed and are displayed using descriptive statistics. RESULTS: In a time span of a year in the Polyclinic 'Magdalena' 705 cardiovascular patients have undergone surgery, 63 of which have developed symptoms of certain nosocomial infections while in the intensive care unit. 8% of patients have contracted a hospital-acquired infection. The largest portion were the patients that had cardiac surgery. The most common were urinary (36%) and respiratory (18%) infections. The average BMI (body mass index) shows the results of overweight. The most frequent causes were gram-negative bacteria. 21% of the examinees have gained resistance. CONCLUSION: The analysis of the overall data of the examinees shows that 63 out of the 705 surgical patients within a year while staying in the intensive care unit have developed symptoms of a certain nosocomial infection, which is 8%. Considering that the most frequent hospital-acquired infections were urinary and respiratory, the data analysis should be used as a guide in the forming of new protocols in order to lower that percentage, if that could be achieved.