微酸性次氯酸水对血液透析室物体表面的消毒效果

摘要

目的 探讨微酸性次氯酸水(SAHW)对血液透析室物体表面的消毒效果.方法 采用随机数字表法 将血液透析室内30个透析单元分为两组(三氯异氰脲酸组和SAHW组),每组15个透析单元.三氯异氰脲酸组 采用有效氯浓度500 mg/L的三氯异氰脲酸、SAHW组采用SAHW分别对血液透析单元的各物体表面进行擦拭 消毒.检测物体表面消毒4 h后的菌落数,比较两种消毒方法 的合格情况及对多重耐药菌的杀灭情况.结果 有 效氯浓度500 mg/L三氯异氰脲酸和SAHW对床栏、透析机屏幕、透析机旋钮表面擦拭消毒各物体表面4 h后的 合格率前者分别为90.00％ 、80.00％, 90.00％,后者分别为100.00％,96.67％ 、100. 00％,两者消毒效果比较,差异 均无统计学意义(均P〉0.05). SAHW消毒试验显示,SAHW对四种多重耐药菌的杀灭率均为100％.结论 SAHW的消毒效果与有效氯浓度500 mg/L的三氯异氰脲酸相同,且对血液透析室常见的多重耐药菌具备高效的杀灭作用.%Objective To evaluate disinfection efficacy of slightly acidic hypochlorous water (SAHW) on object surfaces of hemodialysis room. Methods 30 dialysis units in the hemodialysis room were dividea into two groups (trichloroisocyanuric acid group and SAHW group) by random number table method, 15 dialysis units in each group. Trichloroisocyanuric acid group disinfected object surface of each hemodialysis unit with trichloroisocyanuric acid containing 500 mg/L available chlorine, and SAHW group disinfected with SAHW. The colony counts on object surface after 4 hour disinfection were detected, the qualified status and killing of multidrug-resistant organisms (MDROs) between two disinfection methods were compared. Results After bedrails, screens of dialysis machine, and knobs of dialysis machine were disinfected by trichloroisocyanuric acid containing 500 mg/L available chlorine and SAHW respectively, the qualified rates of trichloroisocyanuric acid group were 90.00％, 80.00％, and 90.00％ respectively. SAHW group were 100.00％, 96.67％, and 100. 00％ respectively, difference was not significant between two disinfection methods(both P＞0.05). SAHW disinfection testing showed that the killing rates of SAHW to four MDROs were both 100％. Conclusion Disinfection efficacy of SAHW is the same as that of trichloroisocyanuric acid containing 500 mg/L available chlorine, and has high killing effect on the common MDROs in the hemodialysis room.