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Oxacillin-resistant Staphylococcus aureus in different wards Detection and Analysis


(Strain) 2.3ICU and general ward susceptibility test results in Table 2. Table 2ICU and general ward MRS sensitivity test results (%) Zhejiang Practical Medicine August 2002 Volume 7 22453 4 Continued discussion of the different wards in our hospital from the detection rate of MRS view, ICU ward than general ward, in particular, MRSA was significantly higher than the general ward (ICU beds account for 2% of hospital beds, the detection rate of 48% MRSA). Distribution, from the specimen, ICU ward with respiratory tract infection specimens, followed by a wound, sterile body fluids, blood, which is the primary disease in patients with severe, resulting in immune dysfunction, difficulty in expectoration of gastric contents against aspiration flow is related to major surgery, acute lung injury, acute respiratory distress syndrome, artificial airway and mechanical ventilation also increases the chance of spread of resistant bacteria,[link widoczny dla zalogowanych], repeated use of antibiotics and hormones are also important because 【3】. Staphylococcus aureus infection in general ward a broader way, the most common respiratory tract infections, followed by pus,[link widoczny dla zalogowanych], secretions, sterile body fluids, blood, compared with the ICU ward, are mainly respiratory tract infections, but more general ward is extensive. Can be seen in the general ward MRCNS majority of staphylococcal infections, MRS is contagious, it can be spread through contact pathway leads to popular resistance gene transfer can also be expanded into a drug-resistant strains, which the hospital infection surveillance, control and Management put a higher demand, in addition to a variety of clinical specimens for microbiological examination, but also to deal with transmission, and confinement effects of the hospital environment and other aspects of microbiological examination and monitoring. MRS is increasingly important nosocomial infection pathogens and how to prevent hospital infection control MRS pop into one research topic, therefore, isolation of patients in the ward and carriers the right to avoid cross infection, rational use of antibiotics is to prevent and control the spread of MRS The important measures. Table 2 shows both the ICU ward or general ward, MRSA,[link widoczny dla zalogowanych], MRSE and the resistance of MRCNS are basically the same, not only to cephalosporins and other p-lactam resistance,[link widoczny dla zalogowanych], but also to aminoglycosides, a large macrolides, lincomycin,[link widoczny dla zalogowanych], erythromycin and tetracycline resistance often, and showed multiple resistance. NCCLS document under the rules of oxacillin-resistant Staphylococcus aureus, coagulase-negative staphylococci, may be detected in vitro to cephalosporins or other p-lactam antibiotics such as amoxicillin / clavulanic acid, ampicillin / Shuba Tanzania, ticarcillin / clavulanic acid, piperacillin / tazobactam and imipenem activity appeared, but no clinical efficacy. The report does not sensitive to culture, the lowest rate of Staphylococcus aureus resistant to vancomycin, followed by rifampin, furosemide feeding properly due. SM_Zco resistance rate in the ICU 9l% and 65% in the general ward was 4% and 47%, which prompted the selection of clinical antibiotics, susceptibility testing should be based on experience of drug use antibiotics to prevent waste, delay illness.