IntroductionCOVID-19 outbreaks have left us to deal with an aftermath on many fronts. In particular, disproportionate use of antibiotics, high ICU burden and longer in-hospital stays during the pandemic have been proposed to aggravate the emergency posed by carbapenem-resistant isolates (CRI), specially through carbapenemase production. However, there have been few reports worldwide regarding changes in CRI incidence and little latinamerican literature.ObjectiveWe set out to determine whether the incidence of CRI rose in a tertiary care center in Santa Fe, Argentina during the time period with active cases of COVID-19.MethodsAnalytic epidemiologic study retrospectively designed. Two time periods were defined: P1 (without active cases of COVID-19) from September, 2019 to August, 2020 and P2 (starting at the onset of the first wave of COVID-19 in this institution) from September, 2020 to June 2021. All clinically-relevant microbiological samples -those meant for diagnostic purposes-taken during the study period from patients in the Internal Medicine and Surgical wards as well as the Intensive Care Units were included. Incidence was calculated by dividing the number of CRI during each time frame by the count of patient-day during that same period, multiplied by a hundred.Results9,135 hospitalizations, 50,145 patient-days of analysis. A total of 7285 clinical samples were taken, with an overall positivity for CRI of 12.1% (n=883). Overall CRI incidence during P2 was 2.5 times higher than in P1 (2.52 vs 0.955/100 patient-days, p <0.001). ICU CRI incidence raised from 6.78 to 8.69/100 patient-days in P2 (p=0.006).ConclusionWe found alarming rates of CRI in our center, 2.5 times higher than previous to the first COVID-19 wave, similar to other reports worldwide. To our knowledge, this is one of the few Latin-American reports on the effect of the COVID-19 pandemic on CRI incidence.
Introduction: During COVID-19 outbreaks, disproportionate use of antibiotics, high Intensive Care Units burden and longer in-hospital stays may have aggravated the emergency posed by carbapenem-resistant isolates. Therefore, we set out to determine whether the incidence of carbapenem-resistant isolates rose in a tertiary care center in Santa Fe, Argentina during the period with active cases of COVID-19. Material and methods: In this retrospectively designed analytic epidemiologic study, two periods were defined: Period 1 (without active cases of COVID-19) from September 2019 to August 2020 and Period 2 (starting at the onset of the first wave of COVID-19 in this Institution) from September 2020 to June 2021. All clinically relevant microbiological samples taken during these periods in the Internal Medicine, Surgical and Intensive Care Unit wards were included. The primary analysis of interest was the differential incidence between the two periods, overall and in the Intensive Care Units wards in particular. Results: 9,135 hospitalizations, 50,145 patient-days of analysis. 7,285 clinical samples were taken, with an overall positivity for carbapenem-resistant isolates of 12.1% (n=883). Overall carbapenem-resistant isolates incidence during Period 2 was 2.5 times higher than in Period 1 (2.52 vs 0.955/100 patient-days, p<0.001). Intensive Care Units’ carbapenem-resistant isolates incidence raised from 6.78 to 8.69/100 patient-days in Period 2 (p=0.006). Conclusions: We found alarming rates of carbapenem-resistant isolates in our center, 2.5 times higher in the period following the first wave of COVID-19. This rise was due to a higher amount of clinically relevant microbiological samples taken and to a higher carbapenem resistance among Enterobacteria and non-fermentative Gram-negative bacilli. To our knowledge, this is one of the few Latin-American reports on the effect of the COVID-19 pandemic on carbapenem-resistant isolates incidence.
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