Clinical, Laboratory and Microbiological Characteristics of Patients with Nosocomial Infections Admitted to Sari Fatemeh Zahra Heart Hospital, 2018-2019

Background and purpose: The term nosocomial infection refers to any type of infection that does not exist at the time of hospital admission and occurs within 48-72 hours after admission or up to 3 days to 6 weeks after discharge, or 30 days after surgery. Nosocomial infections can cause side effects, mortality and reduce quality of life in patients. So, so we decided to study the clinical, laboratory, and microbiological characteristics of patients with heart disease and nosocomial infections in Sari Fatemeh Zahra Hospital. Materials and methods: In this descriptive study, 22811 people were studied. Information were recorded, signs of infection in patients were reviewed and in case of symptoms, patients were further examined. Data analysis was performed in SPSS ver.18. Results: In this study, 1.4% of patients developed nosocomial infections. The mean age of patients was 64.5±12.5 years and the majority of patients were males (53.3%). The most common underlying diseases were hypertension, diabetes, and hyperlipidemia. The most common type of nosocomial infection was respiratory infection (47.8%) and the most common bacteria found in culture medium was Escherichia coli. Acinetobacter was resistant to all antibiotics tested except colistin which was susceptible in 80% of cases and resistant in 20%. Conclusion: Control and prevention of nosocomial infections is of particular importance, especially in patients admitted to intensive care units after heart surgery.