Abstract
This study aimed to investigate the current status and changing trend of nosocomial infection in a tertiary general hospital in China, to provide a reference for the prevention and control of healthcare-associated/acquired infection (HAI). A retrospective investigation of the clinical data of HAI patients in Dongying People's Hospital in China from January 1, 2018, to December 31, 2021, was carried out. The incidence of HAI in different units and sites, distribution of pathogenic microorganisms, and antimicrobial use were investigated. The incidence of HAI was 0.93%. It was on the rise from 2018 to 2020 but declined in 2021. The departments with the highest rate of HAI were the Intensive Care Unit (ICU), neurosurgery department, cardiothoracic surgery department, and hematology department. HAI often occurs in the lower respiratory tract, urinary tract, and in blood. The most common pathogenic microorganisms in cases of HAI were Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Acinetobacter baumannii, and Staphylococcus aureus. The rate of bacterial culture delivery for therapeutic drugs has increased from year to year. This study shows that the incidence of HAI in the hospital is generally low. Gram-negative bacteria are still the main source of HAI. The rate of bacterial culture delivery for therapeutic use improved over the years and has gradually been standardized. It is necessary to focus on the management of HAI in the ICU, neurosurgery, cardiothoracic surgery, and hematology departments.
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