Description:
Invasive blood pathogens are micro-organisms that cause various types of infection and complications of the disease: sepsis, septicemia, bacteremia. The main types of invasive bloodborne micro-organisms are: E. coli, S. aureus resistant to methicillin (MRSA), K. pneumoniae, P. aeruginosa, E. faecalis, S. pneumoniae, group B β-haemolytic streptococcus, A. baumannii, H. influenzae, P. mirabilis, P. vulgaris. Most of these pathogens belong to naturally occurring human microflora. For micro-organisms, blood is the best reproductive medium in the human body as it is saturated with the essential substances needed for the propagation of bacteria. The causes of microbial contamination in the blood are various. It can be influenced by invasive medical procedures: artificial ventilation of the lungs, intravenous catheters, surgery, drainage, urinary catheters. Objective: Conducting an analysis of data of the hospital X for 2012–2017 on the incidence of invasive pathogens in the blood. Aims: 1. To provide a theoretical discussion of the factors, potentially being responsible for the release of invasive pathogenic micro-organisms into the bloodstream. 2. To conduct an analysis of data of the hospital X for 2012–2017. 3. To compare the data of the hospital X for 2012–2017 on the incidence of invasive blood-borne pathogens with the data of the Institute of Hygiene of the Republic of Lithuania. Research methods: 1. Analysis of case studies and scientific literature on invasive blood-borne pathogens. 2. Microbiological testing methods for identifying invasive pathogens in the blood. 3. Analysis of research data using Microsoft Excel program. Results: According to the hospital X’s data, blood infections were most commonly caused by gramnegative bacteria: coliform bacterium E. coli, while the number of blood contamination cases caused by K. pneumoniae was one-third less than that. Gram-positive micro-organisms: the most common sepsis-inducing bacterium was methicillin-resistant S. aureus, closely followed by E. faecalis. Data analysis revealed that individual blood infections were caused by: A. baumannii, P. aeruginosa, S. pneumoniae. The comparison of data of the hospital X and the Institute of Hygiene for 2012–2017, demonstrates the predominance of gram-negative micro-organisms.
