The American journal of gastroenterology · 2001
Effectiveness of manual cleaning and disinfection of gastroendoscopes with 3% glutaraldehyde for decreasing risk of transmission of hepatitis C virus.
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Sakai N, Tatsuta M, Iishi H, Yano H, Osaka S, Aoki A
Аннотация
OBJECTIVES: The effectiveness of manual cleaning and disinfection of gastroendoscopes with 3% glutaraldehyde in decreasing the risk of transmission of hepatitis C virus (HCV) was examined.
METHODS: Gastroendoscopes used for treatment of endoscopic esophageal variceal ligation in patients with HCV infection were manually cleaned and disinfected with 3% glutaraldehyde (n = 25), 2% glutaraldehyde (n = 17), or 0.1% benzethonium chloride (n = 25). Samples were obtained by pouring 20 ml of 0.9% NaCl solution into the biopsy-suction channel of the scope before and after cleaning and disinfection. HCV was detected with the polymerase chain reaction.
RESULTS: Of the 25 scopes in 3% glutaraldehyde group, nine (36%) were positive for HCV before cleaning and disinfection, but all became negative after cleaning and disinfection; the difference was statistically significant (p < 0.01). In contrast, in 2% glutaraldehyde group and in the routine cleaning group, there were no significant differences in the number of positive samples between before and after cleaning and disinfection.
CONCLUSION: Manual cleaning and disinfection of gastroscopes with 3% glutaraldehyde is useful for decreasing the risk of transmission of HCV among patients.
METHODS: Gastroendoscopes used for treatment of endoscopic esophageal variceal ligation in patients with HCV infection were manually cleaned and disinfected with 3% glutaraldehyde (n = 25), 2% glutaraldehyde (n = 17), or 0.1% benzethonium chloride (n = 25). Samples were obtained by pouring 20 ml of 0.9% NaCl solution into the biopsy-suction channel of the scope before and after cleaning and disinfection. HCV was detected with the polymerase chain reaction.
RESULTS: Of the 25 scopes in 3% glutaraldehyde group, nine (36%) were positive for HCV before cleaning and disinfection, but all became negative after cleaning and disinfection; the difference was statistically significant (p < 0.01). In contrast, in 2% glutaraldehyde group and in the routine cleaning group, there were no significant differences in the number of positive samples between before and after cleaning and disinfection.
CONCLUSION: Manual cleaning and disinfection of gastroscopes with 3% glutaraldehyde is useful for decreasing the risk of transmission of HCV among patients.