Gram-positive microbiota as potential factors of healthcare-associated infections in children and adults
Keywords:healthcare-associated infections (HAIs), gram-positive microbiota, hospital infection, children’s hospital, children
In the Lviv region, cases of healthcare-associated infections (HAIs) in children occur, but are practically not registered. For the period 2019-2021, not a single case was registered.
Purpose - to identify and compare the species composition of potential HAIs pathogens in children and adults in Lviv hospitals.
Materials and methods. Material for the study was collected from children from various biological niches who were undergoing inpatient treatment in Lviv hospitals. Identification was carried out using MIKRO-LA-TEST kits manufactured by Erba Lachema. Antibiotic susceptibility was determined according to EUCAST recommendations.
Results. Among the isolated gram-positive microbiota that meets the criteria of HAIs, enterococci were most often detected in adults (30,8%), among children (from 0 to 17 years) - in 35,4% of cases. Staphylococcus epidermidis was detected in 21,5% from children's patients, as the causative agent of the purulent-septic process, while in adults – 27,2%. A significant part of S. aureus cultures (63,6%) isolated from children was resistant to amoxicillin (among adults - 56,5%), ceftazidime (54,5%) and cefuroxime (45,4%). Among adult patients, the percentage of isolated resistant strains to ceftriaxone (65,2%), cefotaxime (52,2%), cefepime (87,0%) was significantly higher compared to such indicators in children – 9,1%, 18,2% and 36,4%. The antibiotic ceftizoxime, widely used in recent years in the treatment of children, was not effective in 45,5% of cases.
Conclusions. Despite the low level of registration of HAIs in children, this problem exists. The number of resistant strains is increasing. The sensitivity of strains to antibiotics isolated in children and adults differs significantly, so general recommendations may not be effective. The role of the clinical microbiologist and epidemiologist is extremely important for effective infection control and quality empiric antibiotic therapy in individual healthcare settings.
The research was carried out in accordance with the standarts of bioethics, approved by the ethics committee of the Danylo Halytskyi LNMU. The informed consent of the child's parents and the patient was obtained for the description of the clinical case.
No conflict of interests was declared by the authors.
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