季铵盐类消毒剂与低浓度乙醇并用对结核科内镜中心物体表面的消毒效果

摘要

In order to compare the disinfection effect of quaternary ammonium salt and combined use of quaternary disinfectant and low concentration ethanol of the surface of the object in endoscopy center of tuberculosis,we conveyed the study.A total of 80 areas of the surface of therapeutic vehicle,mirror cabinet and the desk of doctors were selected randomly and disinfected by quaternary ammonium salt and combined use of quaternary disinfectant and low concentration ethanol respectively from January 8th,2017 to March 15th,2017.We collected specimen through surface sampling method,cultivated bacteria and Mycobacterium tuberculosis and compared the number of colony of the two groups.The results showed that compared to quaternary ammonium salt,the combined use of quaternary ammonium salt disinfectant with low concentration ethanol had better disinfection effect on tuberculosis in the surface of therapeutic vehicle,mirror cabinet and doctors' desk.The number of colonies was also less than quaternary ammonium salt disinfection (therapeutic vehicle (2.0 ± 1.2) vs.(2.5 ± 0.8) CFU/cm2,mirror cabinet (1.2 ± 0.7) vs.(1.6 ± 0.6) CFU/cm2,doctors' desk (1.7 ± 1.0) vs.(2.3 ± 1.3) CFU/cm2) (t values were 3.41,2.93 and 2.48,P values were 0.002,0.006 and 0.018).The authors believe that combined use of quaternary disinfectant and low concentration ethanol has good disinfection effect on the surface of the object,which is better than quaternary ammonium salt disinfectant.It is suitable for disinfection of the surface of endoscope center in tuberculosis department.%为寻找结核科内镜中心物体表面的最佳消毒方法,本研究采取单纯季铵盐类消毒剂和季铵盐类消毒剂与低浓度乙醇并用两种消毒方法,分别对2017年1月8日至2017年3月15日解放军第三○九医院结核门诊内镜中心的治疗车、储镜柜、办公桌表面各80处进行消毒,通过物体表面采样法分别对易于生长的一般细菌和结核分枝杆菌进行采样和培养,对两种消毒方法的消毒效果进行对比.结果显示,季铵盐类消毒剂与低浓度乙醇并用消毒后,储镜柜、治疗车及办公桌结核分枝杆菌培养均为阴性,优于单纯使用季铵盐类消毒剂(储镜柜及办公桌结核分枝杆菌培养为阴性,但治疗车结核分枝杆菌培养为阳性);且季铵盐类消毒剂与低浓度乙醇并用消毒后的菌落总数[治疗车、储镜柜、办公桌分别为(2.0±1.2)、(1.2±0.7)、(1.7±1.0)菌落形成单位(CFU)/cm2]也均少于单纯使用季铵盐类消毒剂[治疗车、储镜柜、办公桌分别为(2.5±0.8)、(1.6±0.6)、(2.3±1.3) CFU/cm2],差异均有统计学意义(t值分别为3.41、2.93、2.48,P值分别为0.002、0.006、0.018).笔者认为,季铵盐类消毒剂与低浓度乙醇并用对物体表面具有良好的消毒效果,优于单纯季铵盐类消毒剂,适用于结核科内镜中心表面消毒.