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Sterilizing effect and residual bacteria of four different methods for sterilizing simple breathing vesicles / 南方医科大学学报
Journal of Southern Medical University ; (12): 1067-1070, 2013.
Article in Chinese | WPRIM | ID: wpr-319477
ABSTRACT
<p><b>OBJECTIVE</b>To study the effects of 4 different methods for disinfection of simple breathing vesicles and microbial residue.</p><p><b>METHODS</b>The disinfection tests were divided into 4 groups G1 group (43 cases) with 500 mg/L chlorine dioxide spray, G2 group (28 cases) with alcohol spray, G3 group (47 cases) with 50 mg/L trichloroisocyanuric acid (TCCA) immersion, and G4 group (46 cases) with 50 mg/L chlorine dioxide solution immersion. After 30 min of disinfection, each group was examined by bacterial culture and colony count. The residual bacteria were identified and typed.</p><p><b>RESULTS</b>The 4 methods showed significant differences in bacterial colony count (P<0.001). The rate of bacterial residue was 0% in G1 group, 53.6% in G2 group, 27.7% in G3 group, and 21.7% in G4 group, showing significant differences between the 4 groups (P<0.001). The residual bacteria included antibiotic-resistant common opportunistic pathogen such as Pseudomonas aeruginosa, Acinetobacter baumannii and Staphylococcus haemolytic.</p><p><b>CONCLUSIONS</b>Disinfection with 500 mg/L chlorine dioxide spray is the best for simple breathing vesicles. Prolonged immersion in TCCA may lead to the growth of drug-resistant pathogens in the breathing vesicles.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Bacteria / Colony Count, Microbial / Ventilators, Mechanical / Disinfection / Drug Resistance, Bacterial / Methods Language: Chinese Journal: Journal of Southern Medical University Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Bacteria / Colony Count, Microbial / Ventilators, Mechanical / Disinfection / Drug Resistance, Bacterial / Methods Language: Chinese Journal: Journal of Southern Medical University Year: 2013 Type: Article