Abstract
Objective To evaluate the disinfective effect of a new peracetic acid solution for diges- tive endoscope. Methods Forty endoscopes were divided into experimental group and control group, 10 gas- troscopes and 10 enteroscopes in each group, the experimental group was disinfected with the new peracetic acid solution for 10 min, the control group was disinfected with 2% glutaral for 10 min, the disinfection effect was compared. Subsequently, 80 other endoscopes were divided into 4 groups, 10 gastroscopes and l0 enteroscopes in each group, each group was disinfected for 2 min, 3 rain, 4 min and 5 min, the disinfec- tion efficiency was evaluated. Results The disinfection rates of gastroscopes and enteroscopes in the control were 100% (10/10)and 90% (9/10)respectively. Bacteria were found in both endoscopes. In the experi- mental group, disinfection rates of both gastroseopes and enteroscopes were 100% (10/10), and no bacteri- um was found, which was superior to the control, disinfection rates of gastroscopes of 3 min, 4 min and 5 min were all 100% ( 10/10), which were higher than that of 2 min group ( 30% ) ( P 〈 O. 05 ). Bacteria were found in 3 min group. Disinfection rates of 4 min and 5 min group were 100% ( 10/10), which were higher than that of 3 min group (80%) ( P 〈 0. 05 ). Bacteria were found in 4 min group, and 2 min group was not disinfected. Conclusion The new peraeetic acid solution is effective for clinic digestive endoscope disinfection, and is superior to 2% glutaral. Key words: Endoscopy; Disinfection ; Peroxyacetic acid; Glutaral
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