Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge

Background: Central-line–associated bloodstream infection (CLABSI) rates increased nationally during COVID-19, the drivers of which are still being characterized in the literature. CLABSI rates doubled during the SARS-CoV-2 omicron-variant surge at our rural academic medical center. We sought to ide...

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Main Authors: HeeEun Kang, Kathleen O. Stewart, Asif Khan, Stephanie C. Casale, Caitlin Adams Barker, Justin Kim
Format: Article
Language:English
Published: Cambridge University Press 2023-06-01
Series:Antimicrobial Stewardship & Healthcare Epidemiology
Online Access:https://www.cambridge.org/core/product/identifier/S2732494X2300284X/type/journal_article
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author HeeEun Kang
Kathleen O. Stewart
Asif Khan
Stephanie C. Casale
Caitlin Adams Barker
Justin Kim
author_facet HeeEun Kang
Kathleen O. Stewart
Asif Khan
Stephanie C. Casale
Caitlin Adams Barker
Justin Kim
author_sort HeeEun Kang
collection DOAJ
description Background: Central-line–associated bloodstream infection (CLABSI) rates increased nationally during COVID-19, the drivers of which are still being characterized in the literature. CLABSI rates doubled during the SARS-CoV-2 omicron-variant surge at our rural academic medical center. We sought to identify potential drivers of CLABSIs by comparing period- and patient-specific characteristics of this COVID-19 surge to a historical control period. Methods: We defined the study period as the time of highest COVID-19 burden at our hospital (July 2021–June 2022) and the control period as the previous 2 years (July 2019–June 2021). We compared NHSN CLABSI standardized infection ratios (SIRs), central-line standardized utilization ratios (SURs), completion of practice evaluation tools (PETs) for monitoring of central-line bundle compliance, and proportions of traveling nurses. We performed chart reviews to determine patient-specific characteristics of NHSN CLABSIs during these periods, including demographics, comorbidities, central-line characteristics and care, and microbiology. Results: The CLABSI SIR was significantly higher during the study period than the control period (0.89 vs 0.52; P = .03); the SUR was significantly higher during the study period (1.08 vs 1.02; P < .01); the PET completion per 100 central-line days was significantly lower during the study period (23.0 vs 31.5; P < .01); and the proportion of traveling nurses was significantly higher during the study period (0.20 vs 0.08; P < .01) (Fig. 1). Patients with NHSN CLABSIs during the study period were more likely to have a history of COVID-19 (27% vs 3%; P = .01) and were more likely to receive a higher level of care (60% vs 27%; P = .02). During the study period, more patients had multilumen catheters (87% vs 61%; P = .04). The type of catheter, catheter care (ie, dressing changes and chlorhexidine bathing), catheter duration before CLABSI, and associated microbiology were similar between the study and control periods (Table 1). Conclusions: During the SARS-CoV-2 omicron-variant surge, the increase in CLABSIs at our hospital was significantly associated with increased central-line utilization, decreased PET completion, and increased proportion of traveling nurses. Critical illness and multilumen catheters were significant patient-specific factors that differed between CLABSIs from the study and control periods. We did not observe differences in catheter type, duration, or catheter care. Our study highlights key modifiable risk factors for CLABSI reduction. These findings may be surrogates for other difficult-to-measure challenges related to the culture of safety during a global pandemic, such as staff education related to infection prevention and daily review of central-line necessity.
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spelling doaj.art-8023dd69090f42099a062a5873489cf42023-09-29T12:57:00ZengCambridge University PressAntimicrobial Stewardship & Healthcare Epidemiology2732-494X2023-06-013s46s4710.1017/ash.2023.284Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surgeHeeEun KangKathleen O. StewartAsif KhanStephanie C. CasaleCaitlin Adams BarkerJustin KimBackground: Central-line–associated bloodstream infection (CLABSI) rates increased nationally during COVID-19, the drivers of which are still being characterized in the literature. CLABSI rates doubled during the SARS-CoV-2 omicron-variant surge at our rural academic medical center. We sought to identify potential drivers of CLABSIs by comparing period- and patient-specific characteristics of this COVID-19 surge to a historical control period. Methods: We defined the study period as the time of highest COVID-19 burden at our hospital (July 2021–June 2022) and the control period as the previous 2 years (July 2019–June 2021). We compared NHSN CLABSI standardized infection ratios (SIRs), central-line standardized utilization ratios (SURs), completion of practice evaluation tools (PETs) for monitoring of central-line bundle compliance, and proportions of traveling nurses. We performed chart reviews to determine patient-specific characteristics of NHSN CLABSIs during these periods, including demographics, comorbidities, central-line characteristics and care, and microbiology. Results: The CLABSI SIR was significantly higher during the study period than the control period (0.89 vs 0.52; P = .03); the SUR was significantly higher during the study period (1.08 vs 1.02; P < .01); the PET completion per 100 central-line days was significantly lower during the study period (23.0 vs 31.5; P < .01); and the proportion of traveling nurses was significantly higher during the study period (0.20 vs 0.08; P < .01) (Fig. 1). Patients with NHSN CLABSIs during the study period were more likely to have a history of COVID-19 (27% vs 3%; P = .01) and were more likely to receive a higher level of care (60% vs 27%; P = .02). During the study period, more patients had multilumen catheters (87% vs 61%; P = .04). The type of catheter, catheter care (ie, dressing changes and chlorhexidine bathing), catheter duration before CLABSI, and associated microbiology were similar between the study and control periods (Table 1). Conclusions: During the SARS-CoV-2 omicron-variant surge, the increase in CLABSIs at our hospital was significantly associated with increased central-line utilization, decreased PET completion, and increased proportion of traveling nurses. Critical illness and multilumen catheters were significant patient-specific factors that differed between CLABSIs from the study and control periods. We did not observe differences in catheter type, duration, or catheter care. Our study highlights key modifiable risk factors for CLABSI reduction. These findings may be surrogates for other difficult-to-measure challenges related to the culture of safety during a global pandemic, such as staff education related to infection prevention and daily review of central-line necessity.https://www.cambridge.org/core/product/identifier/S2732494X2300284X/type/journal_article
spellingShingle HeeEun Kang
Kathleen O. Stewart
Asif Khan
Stephanie C. Casale
Caitlin Adams Barker
Justin Kim
Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge
Antimicrobial Stewardship & Healthcare Epidemiology
title Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge
title_full Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge
title_fullStr Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge
title_full_unstemmed Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge
title_short Investigating potential drivers of increased central-line–associated bloodstream infections during the SARS-CoV-2 omicron-variant surge
title_sort investigating potential drivers of increased central line associated bloodstream infections during the sars cov 2 omicron variant surge
url https://www.cambridge.org/core/product/identifier/S2732494X2300284X/type/journal_article
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