神经外科终端氧气插孔细菌污染情况调查及消毒前后效果观察

Survey of bacterial pollution for oxygen jack terminals in our neurosurgery department and disinfection effect

目的分析我院神经外科终端氧气插孔细菌污染情况调查及消毒前后效果。方法入选我院2013-05—2014-04神经外科终端氧气插孔180个,对所有插孔进行消毒前采样,根据随机数字表法分为研究组、对照组,每组90个,研究组采取0.5%碘伏消毒10min,对照组以500mg/L含氯消毒剂消毒10min,评估所有插孔消毒前细菌污染情况;比较两种消毒方式消毒前后的效果。结果消毒前终端氧气插孔180份样本细菌污染50份(27.8%),其中蜡样芽孢杆菌5份(2.8%),枯草芽孢杆菌20份(11.1%),大肠杆菌6份(3.3%),铜绿假单胞菌5份(2.8%),变形杆菌4份(2.2%),产碱假单胞菌6份(3.3%),肠球菌2份(1.1%),表皮葡萄球菌1份(0.6%),奈瑟球菌1份(0.6%);消毒前研究组有菌样本24份(26.7%),无菌样本66份(73.3%);对照组有菌样本26份(28.9%),无菌样本64份(71.1%);组间比较差异无统计学意义(P>0.05);消毒后研究组有菌样本4份(4.4%),无菌样本86份(95.6%),对照组有菌样本17份(18.9%),无菌样本73份(81.1%),差异有统计学意义(P<0.05)。结论神经外科中心输氧终端氧气插孔的细菌出现较严重污染,氧气表安装前,需对输氧终端插孔予以消毒,予以0.5%碘伏消毒剂可简便操作,且消毒效果更佳,值得临床推广。

Objective To investigate the bacterial pollution for oxygen jack terminals in our neurosurgery department and disinfection effects.Methods 180 oxygen jack terminals applied from May 2013 to April 2014 in our neurosurgery department were selected.Before disinfection,all the jacks were taken samples and randomly divided into research group and control group,90 cases each group.The research group was treated with 0.5%iodophor for 10min;control group was treated with chlorinated disinfectants for 10 min.Before disinfection,the bacterial pollution for jacks was assessed;the disinfection effects of two groups were compared.Results Before disinfection,there were 50(27.8%)infected samples,including 5cases(2.8%)with bacillus cereus,20cases(11.1%)with bacillus subtilis,6cases(3.3%)with Escherichia coli,5cases(2.8%)with pseudomonas aeruginosa,4cases(2.2%)with proteusbacillus vulgaris,6cases(3.3%)with pseudomonas alcaligenes,2cases(1.1%)with enterococcus,1case(0.6%)with staphylococcus epidermidis and 1case(0.6%)with neisseria.Before disinfection,the research group had 24(26.7%)bacterial samples and 66(73.3%)sterile samples;the control group had 26(28.9%)bacterial samples and 64(71.1%)sterile samples(P>0.05);After disinfection,the research group had 4(4.4%)bacterial samples and86(95.6%)sterile samples;control group had 17(18.9%)bacterial samples and 73(81.1%)sterile samples(P<0.05).Conclusion In the neurosurgery department,the oxygen jack terminals appear the severe bacterial pollution.Before installation of oxygen meter,the oxygen jack terminal shall be disinfected with 0.5% iodophor sanitizer in an easy and better manner.It is worthy of clinical promotion.