Amer CUSTOVIC, Jasmina SMAJLOVIC, Fejzo DZAFIC

Epidemiological surveillance of endogenous an exogenous nosocomial infections

AbstractAim: Nosocomial infections (NIs) represent a major public health problem in developed, and even more in developing countries. Based on the origin of the pathogen, NIs are divided into endogenous caused by microorganisms of the patient’s microflora, and exogenous caused by pathogens from the patient’s environment or by the same microorganism isolated elsewhere from patient’sbody. The main aim of this research was to determine the frequency, etiology and types of NIs at the Clinic for Surgery of the University Clinical Center Tuzla.Material and Methods: 5.039 patients were prospectively followed for the development of endogenous and exogenous NIs (JanuaryDecember 2015). The definition of NI was performed using standardized the National Healthcare Safety Network (NHSN) criteria.Results: Based on continuous epidemiological surveillance, the incidence of NI was 3.51%; with a total of 177 registered infections, 24 endogenous and 153 exogenous. The most common NIs were urinary tract infections (UTIs) (14.29% endogenous and 85.71% exogenous) and surgical site infections (SSIs) (16.67% endogenous and 83.33% exogenous), p

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