The Surveillance of Bacterial Resistance in Beijing Aerospace General Hospital in 2022
Objective To monitor the antimicrobial resistance of clinical isolates from Beijing Aerospace General Hospital in 2022.Methods The in vitro antimicrobial susceptibility test of bacteria isolated from clinical samples was carried out by using automatic identification and drug sensitivity instrument.Data analysis was conducted with WHONET 5.6,referring to the standard interpretation of the method of susceptibility testing recommended by the 2021 American Association for Clinical and laboratory standardization(CLSI).Results Atotal of 3 261 strains of bacteria were isolated in 2022.The most common bacteria were isolated from respiratory tract(60.07%).Among all strains,982 strains were Gram-positive bacteria(30.11%),544 Staphylococcus bacteria(55.40%),338 enterococci(34.42%)and 31 Streptococcus.There were 2279 strains of Gram-negative bacteria(69.89%),including 1222 strains of Enterobacteriaceae(53.62%)and 1017 strains of non-fermentative bacteria(44.62%).The top five isolates were Klebsiella pneumoniae,Pseudomonas aeruginosa,Escherichia coli,acinetobacter baumannii and Enterococcus faecium.The detection rate of methicillin-resistant Staphylococcus aureus staphylococcus(MRSA)and methicillin-resistant coagulase-negative Staphylococcus(MRCNS)were 22.86%and 75.07%,respectively.No Vancomycin resistant Staphylococcus was found.The resistance rates of Klebsiella pneumoniae to imine and meropenem were 42.9%and 67.0%,respectively.The resistance rates of Escherichia coli to imipenem and Meropenem were lower.The resistance rates of Pseudomonas aeruginosa to imine penem and meropenem were 30.9%and 28.0%,respectively,and acinetobacter Bowman to Carbapenem antibiotics were more than 60%.Conclusion Gram-negative bacteria remain as the most common pathogens isolated from patients in Beijing Aerospace General Hospital in 2022.The detection rates of carbapenem-resistant Klebsiella pneumoniae and Carbapenem resistant Acinetobacter baumannii are high.
Bacterial resistance monitoringIn vitro drug sensitivityMulti-drug resistanceCarbapenem resistance