전국의료관련감염감시체계 중환자실 부문 결과 보고: 2019년 7월부터 2020년 6월

Abstract

Background: This report presents the annual data of the intensive care unit (ICU) module of the Korean National Healthcare-associated Infections Surveillance System (KONIS) between July 2019 and June 2020. Methods: We performed prospective surveillance of healthcare-associated infections (HAI), including urinary tract infections (UTIs), bloodstream infections (BSIs), and pneumonia (PNEU), at 340 ICUs in 256 hospitals using the KONIS database. HAI and device-associated infection (DAI) rates were calculated as the number of infections per 1,000 patient-days (PD) and device-days (DD), respectively. Device utilization was calculated as the ratio (DUR) of device to patient days. Results: A total of 4,489 HAIs were found during the study period: 1,646 UTIs (1,597 cases were urinary catheter-associated); 1,964 BSIs (1,695 were central line-associated); and 879 PNEUs (470 were ventilator-associated). The rate of urinary catheter-associated UTIs (CAUTI) was 1.26/1,000 DD (95% confidence interval [CI] 1.20-1.32), whereas the urinary catheter utilization ratio was 0.80 (95% CI, 0.799-0.801). The rate of central line-associated BSIs was 2.16/1,000 DD (95% CI 2.06-2.26), whereas the central line utilization ratio was 0.50 (95% CI 0.499-0.501). The rate of ventilator-associated PNEUs was 0.93/1,000 DD (95% CI 0.85-1.02), whereas the ventilator utilization ratio was 0.32 (95% CI 0.319-0.321). Conclusion: The overall DAI rate was similar to that in the previous year. In particular, the device utilization ratios were reduced. Continuous surveillance prevented an increase in the infection rate and led to a decrease in device use. A continuous infection surveillance system can reduce the infection rate.