Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality

The clinical aspects of persistent bacteremia (PB) caused by gram-negative rods (GNRs) in terms of antimicrobial resistance (AMR) and PB clearance status are unclear. This secondary analysis of a retrospective cohort study investigated differences in PB caused by Enterobacterales and glucose non-fer...

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Main Authors: Shiori Kitaya, Hajime Kanamori, Yukio Katori, Koichi Tokuda
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Antibiotics
Subjects:
Online Access:https://www.mdpi.com/2079-6382/12/2/313
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author Shiori Kitaya
Hajime Kanamori
Yukio Katori
Koichi Tokuda
author_facet Shiori Kitaya
Hajime Kanamori
Yukio Katori
Koichi Tokuda
author_sort Shiori Kitaya
collection DOAJ
description The clinical aspects of persistent bacteremia (PB) caused by gram-negative rods (GNRs) in terms of antimicrobial resistance (AMR) and PB clearance status are unclear. This secondary analysis of a retrospective cohort study investigated differences in PB caused by Enterobacterales and glucose non-fermentative GNRs (NF-GNRs) based on AMR and PB clearance. We retrospectively surveyed medical records at Tohoku University Hospital. Patients for whom blood cultures were performed between January 2012 and December 2021 were recruited. PB cases were grouped based on AMR and PB clearance; the characteristics of PB due to each bacterial pathogen were examined. The main outcome variable was mortality. The late (30–90-day) mortality rate was significantly higher in the multidrug-resistant (MDR) group than in the non-MDR group for Enterobacterales. However, no significant difference was noted in mortality rates between NF-GNRs with and without AMR. Mortality rates tended to be higher in the non-PB-clearance group than in the clearance group for both Enterobacterales and NF-GNRs. Since the mortality rate was higher in the MDR group in the case of Enterobacterales PB, more careful management is necessary for this condition. Follow-up blood cultures and confirming the clearance of PB are useful for improving the survival rate.
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spelling doaj.art-eb6941f2cbc4462cbea63f3fd3ec072a2023-11-16T18:43:14ZengMDPI AGAntibiotics2079-63822023-02-0112231310.3390/antibiotics12020313Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and MortalityShiori Kitaya0Hajime Kanamori1Yukio Katori2Koichi Tokuda3Department of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, JapanDepartment of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, JapanDepartment of Otolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, Sendai 980-8574, JapanDepartment of Infectious Diseases, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, JapanThe clinical aspects of persistent bacteremia (PB) caused by gram-negative rods (GNRs) in terms of antimicrobial resistance (AMR) and PB clearance status are unclear. This secondary analysis of a retrospective cohort study investigated differences in PB caused by Enterobacterales and glucose non-fermentative GNRs (NF-GNRs) based on AMR and PB clearance. We retrospectively surveyed medical records at Tohoku University Hospital. Patients for whom blood cultures were performed between January 2012 and December 2021 were recruited. PB cases were grouped based on AMR and PB clearance; the characteristics of PB due to each bacterial pathogen were examined. The main outcome variable was mortality. The late (30–90-day) mortality rate was significantly higher in the multidrug-resistant (MDR) group than in the non-MDR group for Enterobacterales. However, no significant difference was noted in mortality rates between NF-GNRs with and without AMR. Mortality rates tended to be higher in the non-PB-clearance group than in the clearance group for both Enterobacterales and NF-GNRs. Since the mortality rate was higher in the MDR group in the case of Enterobacterales PB, more careful management is necessary for this condition. Follow-up blood cultures and confirming the clearance of PB are useful for improving the survival rate.https://www.mdpi.com/2079-6382/12/2/313persistent bacteremiaEnterobacteralesglucose-nonfermenting gram-negative rodantimicrobial resistancefollow-up blood cultureclearance of persistent bacteremia
spellingShingle Shiori Kitaya
Hajime Kanamori
Yukio Katori
Koichi Tokuda
Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality
Antibiotics
persistent bacteremia
Enterobacterales
glucose-nonfermenting gram-negative rod
antimicrobial resistance
follow-up blood culture
clearance of persistent bacteremia
title Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality
title_full Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality
title_fullStr Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality
title_full_unstemmed Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality
title_short Impact of Persistent Multidrug-Resistant Gram-Negative Bacteremia on Clinical Outcome and Mortality
title_sort impact of persistent multidrug resistant gram negative bacteremia on clinical outcome and mortality
topic persistent bacteremia
Enterobacterales
glucose-nonfermenting gram-negative rod
antimicrobial resistance
follow-up blood culture
clearance of persistent bacteremia
url https://www.mdpi.com/2079-6382/12/2/313
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