Comparative study among three methods on surface disinfection in Intensive Care Unit_West China Medical Journal

Authors：

 REN Xiaobing ¹ , CHA Mei ¹ , LIU Yanyin ¹ , YU Ping ¹ , HE Xueping ¹ , WEI Ming ²

1. Nosocomial Infection Management Department, People’s Hospital of Jianyang, Jianyang, Sichuan 641400, P. R. China;
2. Intensive Care Unit, People’s Hospital of Jianyang, Jianyang, Sichuan 641400, P. R. China;

Corresponding author：

REN Xiaobing, Email: 270992325@qq.com

Keywords：

Acidic electrolyzed oxidizing water from the building system; Surface of frequently-touched objects; Chlorine disinfectant; Disinfectant wipes; Frequency of wiping disinfection

DOI：

10.7507/1002-0179.201702041

Video：

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Objective To compare germicidal effect of three disinfectants acting on frequently-touched surfaces in Intensive Care Unit (ICU) at different time points after disinfection so as to put forward the reasonable disinfection method and interval before the next disinfection. Methods We wiped the four frequently-touched surfaces in ICU with disinfectant containing acidic electrolyzed oxidizing water (EOW) from the building system of hospital, disinfectant wipes, and 500 mg/L chlorine respectively. The culture samples were collected from the surfaces before wiping, and 10 minutes, 30 minutes, 1 hour, 2 hours and 4 hours after wiping respectively. The bacterial clearance rate and the qualified rate of bacterial colony counts on the surfaces were compared among the three different disinfectants at different time points after disinfection. Results The bacterial killing rate of three methods for disinfection of object surfaces decreased with the passing of time. The bacterial killing rate of EOW from the building system of hospital was lower than that of the other two methods at all five time points after disinfection (P< 0.05). The bacterial killing rate at hour four after disinfection using chlorine-containing disinfectant and disinfectant wipes was higher than 90.0%. The qualified rate of bacterial colony counts on the surfaces at 10 and 30 minutes after disinfection among the three groups was not significantly different (P>0.05). The qualified rate of bacterial colony counts on the surfaces disinfected by EOW from the building system of hospital was lower than that in the other two groups at the other three time points (P<0.05), and it was totally unqualified at hour four after disinfection. Conclusions The germicidal effect of EOW from the building system of hospital is inferior to chlorine disinfectant and disinfectant wipes. Moreover, the surface can be easily recontaminated after disinfection. It is suggested that EOW should be used in ICU every other hour. and the other two disinfection methods should be used every two hours.

Citation： REN Xiaobing, CHA Mei, LIU Yanyin, YU Ping, HE Xueping, WEI Ming. Comparative study among three methods on surface disinfection in Intensive Care Unit. West China Medical Journal, 2017, 32(3): 357-360. doi: 10.7507/1002-0179.201702041 Copy

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2.	施丽莎, 许春娟, 李秀华. 医务人员的手及其高频接触物体表面污染的研究进展. 护理研究, 2015(2): 129-132.
3.	谷继荣. 环境及物体表面消毒在预防和控制医院感染中的作用. 中国感染控制杂志, 2012, 11(3): 231-235.
4.	鲁艳, 刘丽, 胡小平. ICU 鲍曼不动杆菌感染暴发流行调查及控制对策. 中华全科医学, 2011, 9(3): 392-393.
5.	荣菊芬, 周丽珍, 孙维敏. ICU 患者多重耐药菌感染环境因素及干预措施. 重庆医学, 2012, 41(8): 793-795.
6.	任金芳, 陈静. 某医院重症监护室多重耐药鲍曼不动杆菌感染的危险因素及防控. 解放军预防医学杂志, 2015, 33(3): 285-286.
7.	石继巧, 彭旭华, 刘跃进, 等. 酸性氧化电位水对暖箱贮水槽消毒效果的观察. 中华医院感染学杂志, 2010, 20(6): 821-822.
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9.	Donskey CJ. Does improving surface cleaning and disinfection reduce health care-associated infections? Am J Infect Control, 2013, 41(5 Suppl): S12-S19.
10.	朱仁义, 沈伟. 从循证医学角度看物体表面消毒在医院感染预防和控制中的作用. 中国消毒学杂志, 2008, 25(1): 60-63.
11.	Otter JA, Yezli S, French GL. The role played by contaminated surfaces in the transmission of nosocomial pathogens. Infect Control Hosp Epidemiol, 2011, 32(7): 687-699.
12.	施丽莎. 医院工作人员的手及其高频接触物体表面污染与控制对策的研究. 北京中医药大学, 2015.
13.	李颖, 戈伟, 许文, 等. ICU 物体表面消毒方法优选试验研究. 中华医院感染学杂志, 2013, 23(7): 1629-1631.
14.	何伟. 酸性氧化电位水楼宇消毒系统及常见故障分析. 科技创新与应用, 2016(4): 48.
15.	张雅茹, 朱雪梅. 酸性氧化电位水在医院消毒供应中心的应用. 天津护理, 2011, 19(3): 184-185.
16.	中华人民共和国卫生部. WS/T 367－2012 医疗机构消毒技术规范, 2012.
17.	中华人民共和国卫生部. 医院消毒供应中心(第二部分): 清洗消毒及灭菌技术操作规范. 北京: 中华人民共和国卫生部, 2009: 11-12.

1. 刘力, 牛意熹, 徐星星, 等. 放疗辅助设备物体表面清洁消毒在预防医院感染中的应用价值. 中国现代医生, 2016, 54(10): 102-104.
2. 施丽莎, 许春娟, 李秀华. 医务人员的手及其高频接触物体表面污染的研究进展. 护理研究, 2015(2): 129-132.
3. 谷继荣. 环境及物体表面消毒在预防和控制医院感染中的作用. 中国感染控制杂志, 2012, 11(3): 231-235.
4. 鲁艳, 刘丽, 胡小平. ICU 鲍曼不动杆菌感染暴发流行调查及控制对策. 中华全科医学, 2011, 9(3): 392-393.
5. 荣菊芬, 周丽珍, 孙维敏. ICU 患者多重耐药菌感染环境因素及干预措施. 重庆医学, 2012, 41(8): 793-795.
6. 任金芳, 陈静. 某医院重症监护室多重耐药鲍曼不动杆菌感染的危险因素及防控. 解放军预防医学杂志, 2015, 33(3): 285-286.
7. 石继巧, 彭旭华, 刘跃进, 等. 酸性氧化电位水对暖箱贮水槽消毒效果的观察. 中华医院感染学杂志, 2010, 20(6): 821-822.
8. 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. GB 15982－2012 医院消毒卫生标准, 2012.
9. Donskey CJ. Does improving surface cleaning and disinfection reduce health care-associated infections? Am J Infect Control, 2013, 41(5 Suppl): S12-S19.
10. 朱仁义, 沈伟. 从循证医学角度看物体表面消毒在医院感染预防和控制中的作用. 中国消毒学杂志, 2008, 25(1): 60-63.
11. Otter JA, Yezli S, French GL. The role played by contaminated surfaces in the transmission of nosocomial pathogens. Infect Control Hosp Epidemiol, 2011, 32(7): 687-699.
12. 施丽莎. 医院工作人员的手及其高频接触物体表面污染与控制对策的研究. 北京中医药大学, 2015.
13. 李颖, 戈伟, 许文, 等. ICU 物体表面消毒方法优选试验研究. 中华医院感染学杂志, 2013, 23(7): 1629-1631.
14. 何伟. 酸性氧化电位水楼宇消毒系统及常见故障分析. 科技创新与应用, 2016(4): 48.
15. 张雅茹, 朱雪梅. 酸性氧化电位水在医院消毒供应中心的应用. 天津护理, 2011, 19(3): 184-185.
16. 中华人民共和国卫生部. WS/T 367－2012 医疗机构消毒技术规范, 2012.
17. 中华人民共和国卫生部. 医院消毒供应中心(第二部分): 清洗消毒及灭菌技术操作规范. 北京: 中华人民共和国卫生部, 2009: 11-12.

West China Medical Journal

Comparative study among three methods on surface disinfection in Intensive Care Unit

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