Epidemiological monitoring of the healthcare-associated infection risk in patients of a cardiac surgery hospital at different stages of hospitalization


DOI: https://dx.doi.org/10.18565/epidem.2025.15.1.61-66

Sadovnikov E.E., Sakharova V.M., Barbarash O.L., Brusina E.B.

1) Kemerovo State Medical University, Ministry of Health of the Russia, Kemerovo, Russia; 2) Research Institute of Complex Issues of Cardiovascular Diseases, Kemerovo, Russia
Background. The frequency of infectious complications in cardiac surgery varies widely, and the mortality rate reaches 30%. Active implementation of risk-oriented technologies requires ensuring a high level of epidemiological safety.
Objective. Evaluation of the effectiveness of epidemiological monitoring technology for assessing the risk of infection.
Materials and methods. For 153 days, all 111 patients admitted for planned coronary artery bypass grafting underwent continuous prospective epidemiological observation with microbiological monitoring of colonization of the main loci. Biological material was collected from three loci at five stages of the patient’s stay in the hospital. The quality of disinfection was controlled by washings from environmental objects (764 samples). 242 samples of various materials and instruments were tested for sterility.
Results. The most common microorganisms were Klebsiella pneumoniae, Staphylococcus aureus, Enterobacter cloacae. During microbiological monitoring, colonization of patients with Klebsiella pneumoniae at the stage of surgery was revealed during transesophageal echocardiography, which increased the likelihood of infection by 9.58 times. An analysis of discrepancies and their correction were performed, which excluded the transmission of the pathogen during the procedure.
Conclusion. Epidemiological monitoring technology is an effective diagnostic measure for assessing the risk of healthcare-associated infections. Epidemiological monitoring with microbiological control provides assessing the risk of infection and suggesting measures to minimize it.

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About the Autors


Evgeny E. Sadovnikov, Postgraduate Student, Department of Epidemiology, Infectious Diseases and Dermatovenereology, Kemerovo State Medical University, Ministry of Health of the Russia, Kemerovo, Russia; evsadov1@gmail.com; http://orcid.org/0000-0002-4335-0962
Vera M.Sakharova, Bacteriologist, Research Institute of Complex Issues of Cardiovascular Diseases, Kemerovo, Russia; sahavm@kemcardio.ru; http://orcid.org/0000-0002-7458-0621
Professor, Olga L. Barbarash, Academician of the Russian Academy of Sciences, МD, Director, Research Institute of Complex Issues of Cardiovascular Diseases, Kemerovo, Russia; barbol@kemcardio.ru; http://orcid.org/0000-0002-4642-3610
Professor, Elena B. Brusina, Corresponding Member of the Russian Academy of Sciences, МD, Head, Department of Epidemiology, Infectious Diseases and Dermatovenereology, Kemerovo State Medical University, Ministry of Health of the Russia, Kemerovo, Russia; brusina@mail.ru; http://orcid.org/0000-0002-8616-3227


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