Analysis of Multi-Drug Resistant Organism Surveillance and Antimicrobial Resistance Early Warning in a Hospital in 2022

Abstract

Objective: To determine the clinical distribution of multi-drug resistant organism (MDRO) in Jiangyan Hospital and the monitoring and warning of drug-resistance bacteria to provide an important basis for guiding the application of broad-spectrum antibiotics in clinical treatment and reducing the occurrence of nosocomial infection. Methods: Retrospective screening and analysis were conducted on the pathogenic strains of hospitalized patients in our hospital in 2022. Results: A total of 2,769 strains of pathogenic bacteria and 390 strains of MDRO were detected and isolated in our hospital in 2022; the detection rate of MDRO was 14.08%. A total of 516 strains (18.64%) Klebsiella pneumoniae (KP) and 62 strains (12.02%) of carbapenem-resistant Klebsiella pneumoniae (CR-KP) were detected; 436 strains (15.75%) of Escherichia coli (ECO) were detected, including 8 strains (1.83%) of CR-ECO; 342 strains (12.35%) of Pseudomonas aeruginosa (PA) and 116 strains (33.92%) of CR-PA were detected; there were 194 strains (7.01%) of Acinetobacter baumannii (AB), among which 125 strains (64.43%) were CR-AB; there were 291 strains (10.51%) of Staphylococcus aureus, among which 79 strains (27.15%) of methicillin-resistant Staphylococcus aureus (MRSA) were detected; 78 strains (2.82%) of Enterococcus faecalis were detected, and vancomycin-resistant enterococcus (VRE) was not detected. The first five MDROs were CR-AB, CR-PA, MRSA, CR-KP, and CR-ECO. The top five departments with the highest MDRO detection rate in 2022 were the ICU (37.44%), the Pulmonology Department (ward 13; 31.03%), the Department of Rehabilitation (ward 5; 6.67%), the Department of Neurosurgery (ward 11; 4.62%), and the Department of General Surgery (ward 10; 3.59 The resistance rate of antibacterial drugs is divided into four levels for early warning: 30% to 40%, 41% to 50%, 51% to 75%, and 75% or more. Conclusion: Our hospital should strengthen the monitoring of antimicrobial resistance warning related to MDRO and the abuse of antimicrobial drugs. Based on the results of drug sensitivity and antimicrobial resistance warning, the use of antibiotics should be standardized in clinical practice to reduce nosocomial infection.