Study on the disinfection methods and optimal strategies for surface of high-frequency contact object in ICU

ObjectiveTo observe the cleaning and disinfecting effects of different carrier adsorption disinfectants on surface of high-frequency contact object in intensive care unit(ICU) by comparing with traditional disinfection methods, and explore the economic, convenient and effective disinfection methods and frequencies.

MethodsBefore the experiment, the object treated with chlorine-containing disinfectant and ordinary towel was used as the control group, and the object treated with double-chain quaint salt disinfectant was set as the experimental group.The surfaces of high-frequency contact objects in ICU were treated with disinfecting wet wipes, microfiber rag and cotton spunlaced non-woven cloth as carriers to wipe and disinfect, and the disinfecting frequency was twice a day.The fluorescence and microbial detection in two groups were randomly carried out to identify the disinfection effects under the working state.The qualified rates of cleaning and disinfection of disinfectants with different material carriers before and after the experiment were compared, and the consumption cost of the three disinfection methods were analyzed.

ResultsCompared with before experiment, the total qualification rates of the microbial detection method and fluorescent detection method in three different material carriers in the experimental group increased to 95.43% and 74.38%, respectively, and the difference of which was statistically significant(P < 0.01).There was no statistical significance in the disinfection effects among the same disinfectant adsorbed by three different carriers in the experimental group(P>0.05), and the consumption costs of disinfecting wet wipes, microfiber rag and cotton spunlaced non-woven cloth were 4.4 yuan/day per bed, 1.58 yuan/day per bed and 1.66 yuan/day per bed, respectively.

ConclusionsDouble-chain quaternary amine salt disinfectant can be used as a routine disinfectant in ICU.At the cotton spunlaced non-woven fabric as the carrier of disinfection method, the cleaning and disinfection is completed in one step, which is cheap and good quality, twice daily, and an economic and effective method in maintaining the low pollution of surface of high-frequency contact.