Distribution and Drug-resistance of Staphylococcus aureus in Intensive Care Unit / 中华医院感染学杂志

ABSTRACT

OBJECTIVE To investigate the resistance of Staphylococcus aureus,includ MRSA and MSSA,to antimicrobial agents in intensive care unit(ICU),and to provide basis for clinical therapy.METHODS K-B disk diffusion method was used to determine the drug susceptibility of 171 strains of S.aureus,and meticillin-resistant S.aureus(MRSA) was detected by using the disk diffusion method according to NCCLS/CLSI.RESULTS In ICU,S.aureus was isolated mostly from the respiratory tract,urine tract and blood.MRSA made up 57.89%.For MRSA and MSSA,no resistance against vancomycin and norvancomycin was observed.The resistance rates of MRSA to other agents were as follows chloramphenicol 20.45%,and minocycline 20.45%.While the resistance rates of MSSA to other agents were as followscefazolin 6.25%,and amikacin 6.25%,minocycline 9.38%.CONCLUSIONS MRSA shows the multidrug resistance.Pathogenic monitoring,keeping the patients apart,rational utilization of antibiotics,medical facility sterilization strictly and intensive hand hygiene are very important to prevent MRSA infection.