Analysis of the dynamic surveillance results of device-associated nosocomial infection in ICU of a tertiary hospital in Beijing from 2020 to 2022
Objective To analyze the characteristics of device-associated nosocomial infection in intensive care unit(ICU)through dynamic targeted monitoring,and to provide scientific basis for the formulation of device-associated nosocomial infection prevention and control strategy.Methods R 4.1.3 software was used to analyze the status of device-associated nosocomial infection targeted monitored in ICU patients in a tertiary hospital in Beijing from 2020 to 2022 through descriptive analysis,Mantel-Haenszel stratified analysis,Cochran-Armitage trend test and other methods.The test level was α=0.05.Results From 2020 to 2022,a total of 2 749 cases were targeted monitored in the hospital,of which 66 cases(2.4％)had device-associated infection.The incidence rates of ventilator associated pneumonia(VAP)were 2.28‰,3.65‰ and 1.12‰,respectively.The incidence rates of central line associated bloodstream infection(CLABSI)were 5.38‰,9.52‰ and 8.80‰,respectively.The incidence rates of catheter-associated urinary tract infection(CAUTI)were 0.72‰,1.65‰ and 1.43‰,respectively.There was no significant difference in the incidence of VAP,CLABSI and CAUTI among different years(all P＞0.05).From 2020 to 2022,the utilization rates of ventilators were 25.00％,32.65％and 30.48％,respectively,and there were significant differences in the utilization rate of ventilators among different years(x2=13.406,P=0.001).The utilization rate of catheters for the three consecutive years were 91.41％,91.61％and 91.56％,respectively.There was no significant difference in the utilization rate of catheters among these years(x2=0.026,P=0.987).The utilization rate of central venous catheters for the three consecutive years were 40.62％,47.39％and 43.05％,respectively.There were significant differences in the utilization rate of central venous catheters among different years(x2=8.498,P=0.014).There were significant differences in the incidence rate of device-related hospital infection among different genders,hospitalization days,ICU hours,and whether ventilator or central venous catheter was used(all P＜0.05).A total of 68 strains of pathogenic bacteria were detected,mainly Gram-negative bacteria(63.24％).The rates of drug resistance in the consecutive three years were 47.37％,63.64％and 62.96％,respectively.Cochran-Armitage trend test showed that Z=0.997,P=0.319.Conclusions The status of device-associated nosocomial infection in ICU in the hospital was generally stable from 2020 to 2022.It is suggested to strengthen the targeted dynamic monitoring of device-associated hospital infection in ICU,and special attention should be paid to male patients,patients with ≥20 days of hospitalization,＞96 hours of ICU admission and invasive ventilators and central venous catheters.Practical measures should be taken to prevent and control hospital infection.
intensive care unitnosocomial infectiondevice-associated
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