• Maristela Pinheiro Freire, Denise Brandão de Assis, Bruno de Melo Tavares, Valquiria O C Brito, Igor Marinho, Milton Lapchik, Ana Rubia Guedes, Geraldine Madalosso, Maura Salaroli Oliveira, de LimaAntonio Carlos PedrosoACPDepartment of Statistics, Institute of Mathematics and Statistics, Universidade de São Paulo, São Paulo, SP, Brazil., and Anna S Levin.
• Department of Infection Control of Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
• Clinics (Sao Paulo). 2023 Jan 1; 78: 100231100231.

BackgroundThis study aimed to analyze the Healthcare-Associated Infections (HAI) rates and antimicrobial consumption in Intensive Care Units (ICU) in São Paulo city during the COVID-19 pandemic and compare them with the pre-pandemic period.MethodsThis cohort included all hospitals that reported HAI rates (Central-Line-Associated Bloodstream Infection ‒ CLABSI and Ventilator-Associated Pneumonia ‒ VAP), the proportion of microorganisms that caused CLABSI, the proportion of resistant microorganisms, and antimicrobial consumption from January 2017 ‒ December 2020. Hospitals were stratified by the number of beds, Central Venous Catheter (CVC) utilization rate, Mechanical-Ventilation (MV) utilization rate, and type of funding. Statistical analyses were based on time-series plots and regression models.Results220 ICUs were included. The authors observed an abrupt increase in CLABSI rates after the pandemic onset. High CLABSI rates during the pandemic were associated with hospital size, funding (public and non-profit private), and low CVC use (≤ 50%). An increase in VAP rates was associated with public hospitals, and high MV use (> 35%). The susceptibility profile of microorganisms did not differ from that of the pre-pandemic period. polymyxin, glycopeptides, and antifungal use increased, especially in COVID-19 ICUs.ConclusionsHAI increased during COVID-19. The microorganisms' susceptibility profile did not change with the pandemic, but the authors observed a disproportionate increase in large-spectrum antimicrobial drug use.Copyright © 2023 HCFMUSP. Published by Elsevier España, S.L.U. All rights reserved.

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