Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study

Eun Hyung Yoo,1 Hyo-Lim Hong,2 Eun Jin Kim2 1Department of Laboratory Medicine, Daegu Catholic University School of Medicine, Daegu, Korea; 2Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu, KoreaCorrespondence: Eun Jin Kim, Department of Internal Medicine, Daegu...

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Main Authors: Yoo EH, Hong HL, Kim EJ
Format: Article
Language:English
Published: Dove Medical Press 2023-01-01
Series:Infection and Drug Resistance
Subjects:
Online Access:https://www.dovepress.com/epidemiology-and-mortality-analysis-related-to-carbapenem-resistant-en-peer-reviewed-fulltext-article-IDR
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author Yoo EH
Hong HL
Kim EJ
author_facet Yoo EH
Hong HL
Kim EJ
author_sort Yoo EH
collection DOAJ
description Eun Hyung Yoo,1 Hyo-Lim Hong,2 Eun Jin Kim2 1Department of Laboratory Medicine, Daegu Catholic University School of Medicine, Daegu, Korea; 2Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu, KoreaCorrespondence: Eun Jin Kim, Department of Internal Medicine, Daegu Catholic University School of Medicine, 33, Duryugongwon-ro 17gil, Namgu, Daegu, 42472, Korea, Tel +82-53-650-4274, Fax +82-53-650-4942, Email ejkim77@cu.ac.krPurpose: The prevalence of carbapenem-resistant Enterobacterales (CRE) is rapidly increasing worldwide. Patients in the intensive care unit (ICU) are susceptible to CRE infections, and the related mortality rate is increased. It is necessary to understand CRE strains and risk factors for CRE infection in the ICU, to facilitate development of effective prophylactic strategies and treatments for ICU patients.Patients and Methods: This observational study was conducted in a tertiary hospital between 2016 and 2021. The subjects were patients with CRE cultured from specimens obtained after ICU admission. Genotypes of strains of CRE and carbapenemase-producing Enterobacterales (CPE) were identified, CRE infection was distinguished from mere colonization, and the clinical course of these patients was investigated.Results: Among 327 CRE cases, 84 (25.7%) showed infection and 243 (74.3%) showed colonization. Of these patients, 138 (42.2%) died. The CRE strains were Klebsiella pneumoniae (253 cases, 77.4%), Enterobacter cloacae (44 cases, 13.5%), and Escherichia coli (15 cases, 4.6%). Among CRE cases, CPE was found in 249 (76.1%), including Klebsiella pneumoniae carbapenemase (KPC) in 164 (65.9%), and Guiana extended-spectrum (GES) in 64 (25.7%). A bedridden state, longer ICU stay, chronic kidney disease, malignancy, connective tissue disease, ICU admission for cardiac arrest, and CRE infection were associated with higher mortality, but cerebrovascular disease and ICU admission for trauma were associated with lower mortality. GES outbreak was caused by person-to-person transmission and was controlled through active surveillance.Conclusion: The frequency of K. pneumoniae and KPC was the highest, but E. cloacae and GES was characteristically high in this study. Active CRE surveillance can be helpful for controlling outbreak.Keywords: carbapenemase-producing Enterobacterales, genotypes, intensive care unit, Klebsiella pneumoniae carbapenemase, Guiana extended spectrum
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spelling doaj.art-273071ccb2c34286bb90b4d9d815ed372023-01-08T17:06:51ZengDove Medical PressInfection and Drug Resistance1178-69732023-01-01Volume 1618920080868Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational StudyYoo EHHong HLKim EJEun Hyung Yoo,1 Hyo-Lim Hong,2 Eun Jin Kim2 1Department of Laboratory Medicine, Daegu Catholic University School of Medicine, Daegu, Korea; 2Department of Internal Medicine, Daegu Catholic University School of Medicine, Daegu, KoreaCorrespondence: Eun Jin Kim, Department of Internal Medicine, Daegu Catholic University School of Medicine, 33, Duryugongwon-ro 17gil, Namgu, Daegu, 42472, Korea, Tel +82-53-650-4274, Fax +82-53-650-4942, Email ejkim77@cu.ac.krPurpose: The prevalence of carbapenem-resistant Enterobacterales (CRE) is rapidly increasing worldwide. Patients in the intensive care unit (ICU) are susceptible to CRE infections, and the related mortality rate is increased. It is necessary to understand CRE strains and risk factors for CRE infection in the ICU, to facilitate development of effective prophylactic strategies and treatments for ICU patients.Patients and Methods: This observational study was conducted in a tertiary hospital between 2016 and 2021. The subjects were patients with CRE cultured from specimens obtained after ICU admission. Genotypes of strains of CRE and carbapenemase-producing Enterobacterales (CPE) were identified, CRE infection was distinguished from mere colonization, and the clinical course of these patients was investigated.Results: Among 327 CRE cases, 84 (25.7%) showed infection and 243 (74.3%) showed colonization. Of these patients, 138 (42.2%) died. The CRE strains were Klebsiella pneumoniae (253 cases, 77.4%), Enterobacter cloacae (44 cases, 13.5%), and Escherichia coli (15 cases, 4.6%). Among CRE cases, CPE was found in 249 (76.1%), including Klebsiella pneumoniae carbapenemase (KPC) in 164 (65.9%), and Guiana extended-spectrum (GES) in 64 (25.7%). A bedridden state, longer ICU stay, chronic kidney disease, malignancy, connective tissue disease, ICU admission for cardiac arrest, and CRE infection were associated with higher mortality, but cerebrovascular disease and ICU admission for trauma were associated with lower mortality. GES outbreak was caused by person-to-person transmission and was controlled through active surveillance.Conclusion: The frequency of K. pneumoniae and KPC was the highest, but E. cloacae and GES was characteristically high in this study. Active CRE surveillance can be helpful for controlling outbreak.Keywords: carbapenemase-producing Enterobacterales, genotypes, intensive care unit, Klebsiella pneumoniae carbapenemase, Guiana extended spectrumhttps://www.dovepress.com/epidemiology-and-mortality-analysis-related-to-carbapenem-resistant-en-peer-reviewed-fulltext-article-IDRcarbapenemase-producing enterobacteralesgenotypesintensive care unitklebsiella pneumoniae carbapenemaseguiana extended spectrum
spellingShingle Yoo EH
Hong HL
Kim EJ
Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study
Infection and Drug Resistance
carbapenemase-producing enterobacterales
genotypes
intensive care unit
klebsiella pneumoniae carbapenemase
guiana extended spectrum
title Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study
title_full Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study
title_fullStr Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study
title_full_unstemmed Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study
title_short Epidemiology and Mortality Analysis Related to Carbapenem-Resistant Enterobacterales in Patients After Admission to Intensive Care Units: An Observational Study
title_sort epidemiology and mortality analysis related to carbapenem resistant enterobacterales in patients after admission to intensive care units an observational study
topic carbapenemase-producing enterobacterales
genotypes
intensive care unit
klebsiella pneumoniae carbapenemase
guiana extended spectrum
url https://www.dovepress.com/epidemiology-and-mortality-analysis-related-to-carbapenem-resistant-en-peer-reviewed-fulltext-article-IDR
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AT kimej epidemiologyandmortalityanalysisrelatedtocarbapenemresistantenterobacteralesinpatientsafteradmissiontointensivecareunitsanobservationalstudy