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目的了解重症监护病房(ICU)医务人员鼻前庭带菌情况,以加强ICU医务人员医院感染的预防与控制。方法采用常规方法对ICU工作的93名医务人员和对照组的98名医务人员的鼻前庭拭子进行培养和菌种鉴定。结果从191名医务人员的鼻拭子中分离到214株机会致病菌,其中金黄色葡萄球菌8株,携带率4.19%,均为甲氧西林敏感金黄色葡萄球菌(MSSA),凝固酶阴性葡萄球菌131株,携带率93.71%,主要是表皮葡萄球菌和溶血葡萄球菌,其中耐甲氧西林凝固酶阴性葡萄球菌(MRCNS)占50.3%,革兰阴性杆菌27株,携带率14.14%,主要是肺炎克雷伯菌和阴沟肠杆菌,未发现产超广谱β-内酰胺酶(ESBLs)细菌;ICU医务人员鼻前庭金黄色葡萄球菌携带率(6.5%)、MRCNS的携带率(60.2%)、革兰阴性杆菌的携带率(26.9%)均明显高于普通科室(P<0.05)。结论医院内医务人员间鼻前庭机会致病菌携带率较高,不同科室医务人员之间的机会致病菌的携带存在明显差异,应加强医院医务人员自身感染的预防与控制,特别是长期在ICU工作的医务人员。
Objective To understand the presence of nasal vestibular bacteria in intensive care unit (ICU) medical staff to enhance the prevention and control of nosocomial infections among medical staff in ICU. Methods Nasal vestibular swabs from 93 medical workers in the ICU and 98 medical staff in the control group were cultured and identified by routine methods. Results 214 opportunistic pathogens were isolated from nasal swabs of 191 medical staffs, including 8 Staphylococcus aureus and carriage rate of 4.19%, all of which were methicillin-sensitive Staphylococcus aureus (MSSA), coagulase-negative Staphylococcus 131 strains, the carrying rate of 93.71%, mainly Staphylococcus epidermidis and Staphylococcus haemolyticus, of which methicillin-resistant coagulase-negative staphylococci (MRCNS) accounted for 50.3%, 27 Gram-negative bacteria, carrying rate 14.14%, mainly Was Klebsiella pneumoniae and Enterobacter cloacae, and no ESBLs-producing bacteria were found. ICU medical staff carried nasal vestibule S. aureus (6.5%), MRCNS (60.2% ), Gram-negative bacilli carrier rate (26.9%) were significantly higher than the common department (P <0.05). Conclusions There is a significant difference in opportunistic pathogenic bacteria among the medical staff in the hospital, and there are significant differences in opportunistic pathogenic bacteria among medical staff in different departments. Prevention and control of hospital infection should be strengthened, especially in long-term Medical staff working in ICU.