The object of this study was to measure the biocidal effect of povidone on staphylococcus found in tracheal incision site, changes following the disinfection frequency and duration, and tolerance to the antibiotics. The data was analysed by percentage and t-test using SAS program. The subjects of this study are 35 tracheostomy patients in an Intensive Care Unite of the hospital located in Daegu city and analysing term was from January 16 to February 26, 2001.
The results of this study were as follows.
The biocidal effect of povidone on Staphylococcus was strong regardless of time and concentration.
Staphylococcus aureus was found on third day and found to be highest concentration on 6th day after disinfection of once/a day. Coagulase negative Staphylococcus was not found from 1st to 3rd day and highest on 4th day after disinfection of once/a day.
As to bacteria colonization following the disinfection frequency, twice per day of disinfection was more effective on Staphylococcus aureus than once a day.
In tolerance test of Staphylococcus aureus and Coagulase negative Staphylococcus, 72.7% of Staphylococcus aureus showed tolerance in Methicillin, 63.6% in Imipenem, and 37.5% of Coagulase negative Staphylococcus showed tolerance in Methicillin, 12.5% in Imipenem. Bothof them do not have any tolerance in Vancomycin.
The results of this study can be used as the basis for protection against hospital mediated infection through thorough disinfection.
With above results, I suggest the following.
First, we should research relation between antiseptics and fungi, virus more deeply.
Secondly, all medical personnel should try to protect against the hospital mediated infection.
Thirdly, there is a need of training professional disinfection personnel for preventing hospital mediated infection and the progress of nursing science.