Affiliation(s)
1. Department of Infection Control and Hospital Hygiene, University Hospital Brno, Jihlavská 20, 620 00 Brno, Czech Republic
2. Clinic of Pulmonary Diseases and Tuberculosis, University Hospital Brno, Jihlavská 20, 620 00 Brno, Czech Republic
3. Department of Clinical Microbiology, University Hospital Brno, Jihlavská 20, 620 00 Brno, Czech Republic
ABSTRACT
Ensuring complex pre-operative patient preparation before planned
surgery is an essential preventive measure of SSIs (surgical site infections). The aim of this study was to evaluate the difference in the
effectiveness of the use of common soap and a tested product to reduce the
occurrence of bacterial microorganisms on the skin surface in the area of the
assumed surgical incision. Two hypotheses have been
identified: H0: the tested product
can be considered as beneficial for common pre-operative patient preparation in
the incision area in order to significantly reduce the microbial load (decrease
in CFU on a defined area of the blood agar by half of the original number and
less). H1: the tested product exceeds common soap by at least 20% when reducing
the microbial load in the incision area. There were 80 microbiological prints examined on filter paper using the
cultivation method on culture medium. The statistical method of the classic hypothesis test on the binomial
distribution parameter versus the one-sided alternative has been used to
process the results for the occurrence of microorganisms. The statistical
processing of the results obtained by microbiological examination of prints
allows for the confirmation of H0 and rejection of the H1 hypothesis. The
results have shown the importance of proper pre-operative hygiene of the
patient’s skin, regardless of the detergent base.
KEYWORDS
Skin decolonisation,
pre-operative preparation, SSI.
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