医院环境中葡萄球菌监测

Environment Staphylococcus in Our Hospital: An Investigation and Analysis

目的 定期监测环境中的葡萄球菌 ,及时发现耐甲氧西林金黄色葡萄球菌 (MRSA)与耐甲氧西林凝固酶阴性葡萄球菌 (MRCNS)携带者。方法 对 MRSA感染者和非 MRSA感染者的床头柜、陪护和医务人员的手、鼻前庭进行采样培养 ,对检有葡萄球菌的标本 ,按常规方法鉴定。结果 6 5次 MRSA感染者和 5 5次非 MRSA感染者的外环境监测结果 ,检有葡萄球菌携带的分别 6 0例和 4 5例 ,其中金黄色葡萄球菌 (SAU )分别为 2 3.3%和 6 .6 % ;凝固酶阴性葡萄球菌 (CNS)分别为 76 .7%和 93.3% ;MRSA分别为 71.4 %和 33.3% ;MRCNS分别为5 4 .3%和 6 9.0 %。结论 MRSA感染组和非 MRSA感染组外环境中 MRSA携带率差异有显著性 (P <0 .0 1) ;对 MRSA感染者 ,应采取严密的消毒隔离措施 ,防止交叉感染。

OBJECTIVE To observe meticillin-resistant Staphylococcus aureus (MRSA) and meticillin-resistant coagulase-negative S. aureus (MRCNS) carriers in time by monitoring the S. aureus in hospital environment on time. METHODS The samples from bedstands, hands, nose vestibule of healthcare workers′ and patients companions′ were incubated and identified by routine method. RESULTS There were 60 cases of S. aureus carriers among 65 cases of MRSA infection and 45 cases of S. aureus carriers among 55 cases of non-MRSA infection. The percentage of S. aureus was 23.35% and 6.6%, respectively and the percentage of coagulase-negative Staphylococcus was 76.7% and 93.3%, respectively. There were 71.4% and 33.3% MRSA among S. aureus carrier and (54.3%) and 69.0% MRCNS among coagulase-negative S. aureus carriers. CONCLUSIONS There is significance difference between the MRSA carrier percentage of MRSA infection group and non-MRSA infection group. It is important to take sterilization and isolation measures to prevent cross infection.