Griffith C J, Obee P, Cooper R A, Burton N F, Lewis M
Cardiff School of Health Sciences, University of Wales Institute Cardiff, Cardiff, UK.
J Hosp Infect. 2007 Aug;66(4):352-9. doi: 10.1016/j.jhin.2007.05.016. Epub 2007 Jul 26.
Hospital cleaning currently has a high media profile. The effectiveness of an existing ward-cleaning regimen was assessed at selected sites over a 14 day period and shown to be highly variable. The cleaning regimen was subsequently modified in two stages, both changes involving a rinse stage and substituting cloths with disposable paper towels. One modification continued using the existing detergent; the other replaced detergent with a quaternary ammonium sanitiser. Both modifications yielded significantly lower and more consistent bacterial counts. Assessment of residual organic soil using adenosine triphosphate (ATP) detection demonstrated that failure rates (measurements exceeding benchmark clean value of 500 relative light units (RLU)) fell from 86-100% after existing cleaning methods, to 0-14% after modified cleaning. Maximum ATP readings fell from 163,870 to 2289 RLU. Incorporating a quaternary ammonium sanitiser into the cleaning regimen produced a further slight, but not significant, improvement in cleaning efficacy. These findings suggest that simple improvements can be made to existing cleaning regimens to increase their efficacy.
目前，医院清洁备受媒体关注。在选定地点对现有的病房清洁方案进行了为期14天的效果评估，结果显示其效果差异很大。随后，清洁方案分两个阶段进行了修改，两次修改都涉及冲洗阶段，并用一次性纸巾取代了抹布。一次修改继续使用现有的洗涤剂；另一次则用季铵消毒剂取代了洗涤剂。两次修改都使细菌计数显著降低且更加稳定。使用三磷酸腺苷（ATP）检测对残留有机污垢进行评估表明，失败率（测量值超过基准清洁值500相对光单位（RLU））从现有清洁方法后的86 - 100%降至修改后清洁的0 - 14%。ATP的最大读数从163,870降至2289 RLU。在清洁方案中加入季铵消毒剂，清洁效果进一步略有改善，但不显著。这些发现表明，对现有清洁方案进行简单改进就能提高其效果。
