PMID: 2483631May 1, 1989Paper

[Evaluation of the effectiveness of disinfectants used in several Neapolitan hospitals].

Annali di igiene : medicina preventiva e di comunità
M M D'ErricoD Montanaro

Abstract

Among the various and complex aspects concerning the etiology of nosocomial infections, a relevant role is played by the indiscriminate and incorrect use of disinfectants: they may change paradoxically from devices used for nosocomial infection prevention into carriers of infections. Critical situations are: a) inadequate cleaning of the container; b) inaccurate concentrations set up; c) use of unsterilized water as a diluent; d) introduction of gauze or cotton flocks into the container; e) disinfectant contact with inactivating substances such as soaps, detergents, and organic substances; f) solution stability; etc.. Therefore, in the light of the experience we acquired in the field of nosocomial infections, we believed interesting to carry out a study in order to detect contamination of disinfectants used in various hospitals in Naples as well as their usage. In the period from January to May 1988, 243 disinfecting solutions routinely used in surgical departments of the 2nd School of Medicine and of three large neapolitan hospitals were tested for microbiological contamination. The analysis was carried out according to Kelsey and Maurer. 13 disinfectants were contaminated. The bacterial count exceeded the value of 5000 col/ml...Continue Reading

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