Improvement of methodic approaches to the evaluation of disinfecting equipment efficiency in the system of quality and safety assurance for endoscopic interventions

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Abstract

Introduction. Low quality of endoscope treatment is one of the main risk factors for HAI during endoscopic manipulations. Special equipment is widely used to increase quality and safety of healthcare during the treatment of flexible endoscope. However, to confirm the efficiency of such equipment it is necessary to carry out laboratory experimental studies.

Material and methods. A prototype model of domestically developed Device intended for carrying out the stages of final cleaning and high-level disinfection (HLD) of flexible endoscopes was used during research, utilizing the samples of agents with various active ingredients. Flexible endoscopes were used as testing devices. Donor blood was utilized for imitation of organic contamination. Mycobacterium terrae test microorganism culture was used for artificial contamination of testing devices.

Results. As a result of studying the efficiency of final cleaning and HLD of flexible endoscopes in the Device after them being used once, negative azopyram samples were identified in all endoscope swabs; also, no growth of test microorganism was registered.

During the studies of HLD efficiency in case of multiple use of functional solutions treatment efficiency was registered for 6-8 cycles. After the 12th treatment cycle characteristic growth of test microorganism is observed in the swabs. Efficiency of endoscopes’ decontamination in case of multiple use of a disinfectant based on peroxyacetic acid was confirmed during a work shift after 8 cycles; the decrease of disinfecting agent (DA) concentration by more than 10 times was registered during the shelf life of the functional solution on day 5.

Conclusions. Studies indicate the necessity to research the efficiency of devices’ use to determine the conditions ensuring efficiency and safety of healthcare during endoscopic interventions.

About the authors

A. Yu. Skopin

Federal Budgetary Institution of Science “Scientific Research Institute of Disinfectology” of the Federal Service on Surveillance for Consumer Rights Protection and Human Well-being; Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University (Sechenov University)

Author for correspondence.
Email: noemail@neicon.ru
ORCID iD: 0000-0001-7711-9489
Russian Federation

T. V. Gololobova

Federal Budgetary Institution of Science “Scientific Research Institute of Disinfectology” of the Federal Service on Surveillance for Consumer Rights Protection and Human Well-being; Federal State Budgetary Educational Institution of Further Professional Education Russian Medical Academy of Continuing Professional Education of the Ministry of Healthcare of the Russian Federation

Email: noemail@neicon.ru
ORCID iD: 0000-0001-9033-5223
Russian Federation

Elena A. Matveeva

Federal Budgetary Institution of Science “Scientific Research Institute of Disinfectology” of the Federal Service on Surveillance for Consumer Rights Protection and Human Well-being; Federal State Budgetary Educational Institution of Further Professional Education Russian Medical Academy of Continuing Professional Education of the Ministry of Healthcare of the Russian Federation

Email: Eleen.matveeva@yandex.ru
ORCID iD: 0000-0003-4509-1084

Junior researcher of the laboratory of sterilization issues of Scientific Research Institute of Disinfectology, 117246, Moscow.

e-mail: Eleen.matveeva@yandex.ru

Russian Federation

A. O. Ivanova

Federal Budgetary Institution of Science “Scientific Research Institute of Disinfectology” of the Federal Service on Surveillance for Consumer Rights Protection and Human Well-being

Email: noemail@neicon.ru
ORCID iD: 0000-0003-4500-5481
Russian Federation

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Copyright (c) 2024 Skopin A.Y., Gololobova T.V., Matveeva E.A., Ivanova A.O.


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