Epidemiological Characterisation of Pathogens Causing Skin and Soft Tissue Infectionsin a Dermatology Department of a Hospital in Chongqing
Objective To investigate the distribution of pathogens in patients with skin and soft tissue infections in outpatient and inpatient departments of dermatology,and to explore their drug resistance.Methods The distribution of pathogenic microorganisms and drug sensitivity findings of patients with skin and soft tissue infections in the dermatology department from January 2019 to December 2022 were statistically analyzed using the retrospective analysis approach.Strain identification and drug sensitivity tests adopt the Phoenix 100 system full-automatic microbial identification/drug sensitivity system and its supporting identification and drug sensitivity card.The results were judged according to the clinical and laboratory standards institute(CLSI)M100-S31 standard.Whonet 5.6 software was used for data analysis.Results A total of 1 534 strains of bacteria were isolated.Gram positive bacteria and gram negative bacteria accounted for 71.90％and 28.10％respectively.The isolation rate of methicillin-resistant Staphylococcus aureus(MRSA)was 17.27％.The isolation rate of carbapenem resistant Pseudomonas aeruginosa was 5.52％.For Escherichia coli and Klebsiella pneumoniae,the detection rates of extended spectrum Beta-lactamases,or ESBLs,were 64.4％and 45.5％,respectively.Conclusion Staphylococcus aureus is the main pathogen of skin and soft tissue infections.When treating such infections,dermatological physicians should consider all available data from drug sensitivity testing and prescribe medications with reasonable dosages.
skin and soft tissue infectionspathogensdrug resistanceStaphylococcus aureusdepartments of dermatology
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