Disinfection efficacy of peracetic acid disinfectant (type Ⅲ) on gastrointestinal endoscopy
10.3760/cma.j.issn.1007-5232.2019.10.006
- VernacularTitle: Ⅲ型过氧乙酸消毒液用于消化内镜的消毒效果观察
- Author:
Jiaoyang GU
1
;
Lan LIU
1
;
Yu XIN
1
;
Jingmin REN
1
;
Li WANG
2
;
Nan ZHANG
1
;
Honglei WU
1
;
Xingfeng LIN
2
;
Jianqiang GUO
1
Author Information
1. Department of Gastroenterology, the Second Hospital of Shandong University, Jinan 250033, China
2. Department of Nosocomial Infection Control, the Second Hospital of Shandong University, Jinan 250033, China
- Publication Type:Journal Article
- Keywords:
Endoscopes, gastrointestinal;
Disinfectants;
Peracetic acid disinfectant (type Ⅲ)
- From:
Chinese Journal of Digestive Endoscopy
2019;36(10):741-745
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the disinfection efficacy of peracetic acid disinfectant (type Ⅲ ) on gastrointestinal endoscopy.
Methods:Endoscopes were disinfected respectively by 2% glutaraldehyde (GA group) and peracetic acid disinfectant (type Ⅲ ) (PAA group) according to the process by the 2016 version of "Regulation for cleaning and disinfection technique of flexible endoscope" , and then samples were collected through biopsy channel at the specified steps. The bacterial count and pathogenic bacteria of these samples were detected. Hepatitis B virus surface antigen (HBsAg), hepatitis C virus (HCV) antibody and Treponemia pallidum antibody (TP-Ab) were detected by chemiluminesent microparticle immunoassay (CMIA) in the PAA group. The PAA group were continuously sampled for 5 days.
Results:A total of 56 gastroscopes and 16 colonoscopes were disinfected in the GA group, and 46 gastroscopes and 15 colonoscopes were disinfected in the PAA group. Compared with pre-disinfection, the bacterial count was both significantly reduced in the two groups after disinfection (P<0.05). The qualified rate of gastroscopes disinfection and total qualified rate of the PAA group were higher than those of the GA group [the qualified rate of gastroscopes: 97.83% (45/46) VS 92.86% (52/56), P>0.05; total qualified rate: 98.36% (60/61) VS 94.44% (68/72), P>0.05]. The qualified rate of colonoscopes in the two groups were both 100.00% (15/15, 16/16). After disinfecting by peracetic acid disinfectant (Type Ⅲ), HBsAg, anti-HCV and TP-Ab were negative. There were no significant differences on colonies number at different steps in a 5-day continuous sampling (P>0.05).
Conclusion:Peracetic acid disinfectant (type Ⅲ) can provide a satisfied disinfectant effect, and be applied in clinic to meet the requests of high-level disinfection for gastrointestinal endoscopy.
