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Brockhaus L, Lötscher C, Labhardt ND. Infection prevention practice in home healthcare: a mixed-method study in two Swiss home healthcare organisations. BMC Health Serv Res 2024; 24:657. [PMID: 38778319 PMCID: PMC11112953 DOI: 10.1186/s12913-024-11111-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Infection prevention and control (IPC) research has long neglected the home healthcare sector with its unique challenges. This study aimed to gain an understanding of the barriers to the implementation of infection prevention practices relevant to this setting, the related attitudes, perceived relevance and priorities from the home healthcare worker perspective in Switzerland. METHODS The mixed-method study involved semi-structured interviews (n = 18) and an anonymous web-based survey (n = 144) among nursing assistants and nurses from two home healthcare organizations in northwest Switzerland. Questions in both sub-studies focused on perceived challenges to infection prevention practices, perceived relevance, and related attitudes and mitigation strategies. Using an exploratory-sequential design, survey questions were designed to quantify and complement the findings from the interview study. RESULTS Healthcare workers in these two organisations felt adequately protected, trained and supported by their organisations regarding IPC (survey agreement rates > 90%). General challenges to IPC in the home environment most agreed on were lack of cleanliness, lack of space, and the priorities of the patient to be respected (survey agreement rates 85.4%, 77.1%, and 70.8%, respectively). Practices and perceived challenges in the case of colonisation with multi-drug resistant organisms (MDRO) and potentially infectious diarrheal or respiratory illnesses varied highly regarding information transfer, use of protective equipment, and use and disinfection practices of multi-use equipment. Challenges to hand hygiene, sharps safety, waste management and decontamination of equipment did not feature as a prominent concern. CONCLUSIONS This study is the first to characterise the implementation of infection prevention practices and the related challenges in home healthcare in Switzerland. Home healthcare workers describe various challenges related to infection prevention practices as largely manageable in their work routine, and generally show satisfaction with the support provided by their organisations regarding IPC precautions. Key findings regarding challenges amenable to interventions include uncertainty and inconsistency regarding the management of MDRO colonisation and acute illnesses, and gaps in information transfer. Those challenges may benefit from both organisational interventions and further research into the level of precautions that are appropriate to the home healthcare setting.
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Affiliation(s)
- Lisa Brockhaus
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland.
| | | | - Niklaus Daniel Labhardt
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
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Haddadi MH, Khoshnood S, Koupaei M, Heidary M, Moradi M, Jamshidi A, Behrouj H, Movahedpour A, Maleki MH, Ghanavati R. Evaluating the incidence of ampC-β-lactamase genes, biofilm formation, and antibiotic resistance among hypervirulent and classical Klebsiella pneumoniae strains. J Appl Microbiol 2023; 134:lxad241. [PMID: 37881066 DOI: 10.1093/jambio/lxad241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/18/2023] [Accepted: 10/21/2023] [Indexed: 10/27/2023]
Abstract
AIM Both immunocompetent and healthy individuals can become life-threateningly ill when exposed to the hypervirulent (hvKp) strains of Klebsiella pneumoniae (Kp). The main objectives of this study were to evaluate the presence of ampC-lactamase genes, biofilm formation, and antibiotic resistance in clinical strains of hvKp and cKp (classical K. pneumoniae). MATERIALS AND METHODS Kp strains were collected from patients referred to Shahidzadeh Hospital in Behbahan City, Khuzestan Province, Iran. Several techniques were used to identify hvKp. The hypermucoviscosity phenotype was determined using the string test. Isolates that developed dark colonies on tellurite agar were assumed to be hvKp strains. If any of the iucA, iutA, or peg-344 genes were detected, the isolates were classified as hvKp. Phenotypic and genotypic detection of AmpC β-lactamases of hvKp strains was performed by the combined disk method and polymerase chain reaction, respectively. In addition, crystal violet staining was used to determine the biofilm formation of these isolates. RESULTS For this study, 76 non-duplicative isolates of Kp were collected. Overall, 22 (28.94%) strains had positive string test results, and 31 (40.78%) isolates were grown in tellurite-containing medium. The genes iucA and iutA or peg-344 were found in 23.68% of all Kp strains and in 50% of tellurite-resistant isolates, respectively. The most effective antibiotics against hvKp isolates were tetracycline (85.52%) and chloramphenicol (63.15%). Using the cefoxitin disc diffusion method, we observed that 56.57% (43/76) of the strains were AmpC producer. A total of 30.26% (n = 23/76) of the isolates tested positive for at least one ampC gene, including blaDHA (52.63%, n = 40), blaCIT (40.78%, n = 31), blaACC (19.76%, n = 15), blaMOX (25%, n = 19), and blaFOX (43.42%, n = 33). Biofilm formation analysis revealed that most hvKp isolates were weak (n = 6, 40%) and moderate (n = 5, 33.33%) biofilm producers. CONCLUSION Healthcare practitioners should consider the possibility of the existence and acquisition of hvKp everywhere. The exact mechanisms of bacterial acquisition are also unknown, and it is unclear whether the occurrence of infections is related to healthcare or not. Thus, there are still many questions about hvKp that need to be investigated.
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Affiliation(s)
| | - Saeed Khoshnood
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam 69316, Iran
| | - Maryam Koupaei
- Department of Microbiology and Immunology, School of Medicine, Kashan University of Medical Sciences, Kashan 8759187131, Iran
| | - Mohsen Heidary
- Department of Laboratory Sciences, School of Paramedical Sciences, Sabzevar University of Medical Sciences, Sabzevar 6971938668 , Iran
| | - Melika Moradi
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6136763316, Iran
| | - Ali Jamshidi
- Behbahan Faculty of Medical Sciences, Behbahan 6361796819, Iran
| | - Hamid Behrouj
- Behbahan Faculty of Medical Sciences, Behbahan 6361796819, Iran
| | | | - Mohammad Hassan Maleki
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam 69316, Iran
| | - Roya Ghanavati
- School of Paramedical Sciences, Behbahan Faculty of Medical Sciences, Behbahan 63617, Iran
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Weber A, Neffe L, Diaz LAP, Thoma N, Aghdassi SJS, Denkel LA, Maechler F, Behnke M, Häussler S, Gastmeier P, Kola A. Analysis of transmission-related third-generation cephalosporin-resistant Enterobacterales by electronic data mining and core genome multi-locus sequence typing. J Hosp Infect 2023; 140:96-101. [PMID: 37562589 DOI: 10.1016/j.jhin.2023.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND To contain intra-hospital transmission of third-generation cephalosporin-resistant Enterobacterales (3GCR-E), contact isolation precautions are recommended. AIM To quantify transmissions of 3GCR Escherichia coli and 3GCR Klebsiella pneumoniae within a hospital. METHODS An automated outbreak detection system (AODS) was used to identify clusters (N≥2) of 3GCR Enterobacterales for the years 2016, 2018 and 2020. Clusters were defined by phenotypic agreement of microbiological results and spatial and temporal relationship. Core genome multi-locus sequence typing (cgMLST) was used to confirm whether the cluster isolates were transmitted between patients. FINDINGS A total of 4343 3GCR E. coli and 1377 K. pneumoniae isolates were analysed. Among the 3GCR E. coli isolates, the AODS identified 304 isolates as cluster isolates, the median cluster size was two (range: 2-5). The cgMLST analysis revealed that a total of 23 (7.5%) 3GCR E. coli cluster isolates were transmission-associated, of which 20 isolates (87%) were detected in intensive care patients. Among the 3GCR K. pneumoniae isolates, the AODS identified 73 isolates as cluster isolates, the median cluster size was two (range: 2-4). CgMLST revealed that 35 (48%) 3GCR K. pneumoniae cluster isolates were transmission associated, of which 27 isolates (77%) were detected in intensive care patients. CONCLUSION For 3GCR K. pneumoniae, cgMLST confirmed the AODS results more frequently than for 3GCR E. coli. Therefore, contact isolation precautions for 3GCR K. pneumoniae may be appropriate on intensive care units, but only in certain circumstances, such as outbreaks, for Enterobacterales with lower transmissibility, such as E. coli.
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Affiliation(s)
- A Weber
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - L Neffe
- Helmholtz Centre for Infection Research, Department of Molecular Bacteriology, Braunschweig, Germany
| | - L A P Diaz
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - N Thoma
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - S J S Aghdassi
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Digital Clinician Scientist Programme, Berlin, Germany
| | - L A Denkel
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - F Maechler
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - M Behnke
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - S Häussler
- Helmholtz Centre for Infection Research, Department of Molecular Bacteriology, Braunschweig, Germany; TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture of the HZI and the Hannover Medical School, Hannover, Germany
| | - P Gastmeier
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany
| | - A Kola
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.
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Hagiya H, Otsuka F. Increased evidence for no benefit of contact precautions in preventing extended-spectrum β-lactamases-producing Enterobacteriaceae: Systematic scoping review. Am J Infect Control 2023; 51:1056-1062. [PMID: 36736903 DOI: 10.1016/j.ajic.2023.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Extended-spectrum β-lactamases-producing Enterobacteriaceae (ESBL-E) is a critical antimicrobial resistance pathogen, to which we need to pay the greatest attention. This study was aimed at uncovering the present evidence for the preventive effectiveness of contact precautions for patients colonized or infected with ESBL-E. METHODS According to the Preferred Reporting Items for Systemic Reviews and Meta-analyses (PRISMA) Extension for Scoping Reviews, we searched MEDLINE for articles with relevant keywords from the beginning of 2010 to October 18, 2022. RESULTS Of the 355 articles found, 9, including 8 observational studies and 1 randomized controlled trial, were selected. Safety of discontinuing contact precautions was evaluated mainly in acute-care and long-term care hospitals. Consistently, all authors concluded that contact precautions can be safely discontinued in patients colonized or infected with ESBL-E. CONCLUSION The clinical impact of discontinuing contact precautions for patients with ESBL-E is minimal and can be safely withdrawn at acute, noncritical, adult care wards. Relevant data from pediatric and geriatric wards, as well as intensive care units, were insufficient and should be investigated in future research.
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Affiliation(s)
- Hideharu Hagiya
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 7008558, Japan.
| | - Fumio Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 7008558, Japan
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Gómez-Sanz E, Bagutti C, Roth JA, Alt Hug M, García-Martín AB, Maurer Pekerman L, Schindler R, Furger R, Eichenberger L, Steffen I, Egli A, Hübner P, Stadler T, Aguilar-Bultet L, Tschudin-Sutter S. Spatiotemporal dissemination of ESBL-producing Enterobacterales in municipal sewer systems: a prospective, longitudinal study in the city of Basel, Switzerland. Front Microbiol 2023; 14:1174336. [PMID: 37250050 PMCID: PMC10213686 DOI: 10.3389/fmicb.2023.1174336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 04/18/2023] [Indexed: 05/31/2023] Open
Abstract
Background The contribution of community and hospital sources to the transmission of extended-spectrum β-lactamase producing Enterobacterales (ESBL-PE) remains elusive. Aim To investigate the extent of community dissemination and the contribution of hospitals to the spread of ESBL-PE by exploring their spatiotemporal distribution in municipal wastewater of the central European city of Basel. Methods Wastewater samples were collected monthly for two consecutive years throughout Basel, Switzerland, including 21 sites across 10 postcode areas of the city collecting either community wastewater (urban sites, n = 17) or community and hospital wastewater (mixed sites, n = 4). Presumptive ESBL-PE were recovered by selective culture methods. Standard methodologies were applied for species identification, ESBL-confirmation, and quantification. Results Ninety-five percent (477/504) of samples were positive for ESBL-PE. Among these isolates, Escherichia coli (85%, 1,140/1,334) and Klebsiella pneumoniae (11%, 153/1,334) were most common. They were recovered throughout the sampling period from all postcodes, with E. coli consistently predominating. The proportion of K. pneumoniae isolates was higher in wastewater samples from mixed sites as compared to samples from urban sites, while the proportion of E. coli was higher in samples from urban sites (p = 0.003). Higher numbers of colony forming units (CFUs) were recovered from mixed as compared to urban sites (median 3.2 × 102 vs. 1.6 × 102 CFU/mL). E. coli-counts showed moderate correlation with population size (rho = 0.44), while this correlation was weak for other ESBL-PE (rho = 0.21). Conclusion ESBL-PE are widely spread in municipal wastewater supporting that community sources are important reservoirs entertaining the spread of ESBL-PE. Hospital-influenced abundance of ESBL-PE appears to be species dependent.
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Affiliation(s)
- Elena Gómez-Sanz
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | | | - Jan A. Roth
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | | | - Ana B. García-Martín
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Laura Maurer Pekerman
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Ruth Schindler
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Reto Furger
- State Laboratory Basel-City, Basel, Switzerland
| | | | | | - Adrian Egli
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Tanja Stadler
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland
| | - Lisandra Aguilar-Bultet
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Sarah Tschudin-Sutter
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
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Morin-Le Bihan A, Le Neindre K, Dejoies L, Piau C, Donnio PY, Ménard G. Use of the quantitative antibiogram method for assessing nosocomial transmission of ESBL-producing Enterobacteriaceae in a French hospital. J Hosp Infect 2023; 135:132-138. [PMID: 36918068 DOI: 10.1016/j.jhin.2023.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 03/13/2023]
Abstract
BACKGROUND ESBL-producing Enterobacteriaceae (eESBL) have a high prevalence in hospitals but real-time monitoring of nosocomial acquisition through conventional typing methods is challenging. Moreover, patient-to-patient transmission varies between the main species, namely Escherichia coli, and Klebsiella pneumoniae, then questioning the relevance of applying identical preventive measures. AIM To detect eESBL cross-transmission events (CTE) using combination of quantitative antibiogram with epidemiological data (combined-QA), and to rule on the effectiveness of standard or contact precautions for eESBL species. METHODS First, a validation set was used to confirm the relevance of the combined-QA by comparison to a combination of pulsed-field gel electrophoresis and epidemiological data (combined-PFGE). Secondly, a four-year retrospective analysis was conducted to detect eESBL-CTE in hospitalized patients. Two species were screened i.e. ESBL-E. coli (ESBL-Ec), and ESBL-K. pneumoniae (ESBL-Kp). During the study, only standard precautions were applied to ESBL-Ec patients whereas contact precautions were retained for ESBL-Kp. FINDINGS As a proof of concept, results between the two combined methods for the detection of CTE were identical for E. coli, and similar to at least 75% for K. pneumoniae. During the retrospective analysis, 722 patients with ESBL-Ec isolates and 280 with ESBL-Kp isolates were included. Nine CTE were identified for E. coli and 23 for K. pneumoniae, implying 20 (2.7%) and 36 (12.8%) patients, respectively. CONCLUSION The QA-combined method constitutes a rapid tool for epidemiological surveillance to detect CTE. In our hospital, standard precautions are sufficient to prevent acquisition of ESBL-Ec whereas contact precautions must be implemented to prevent acquisition of ESBL-Kp.
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Affiliation(s)
- Amélie Morin-Le Bihan
- CHU Rennes, SB2H (Service de Bactériologie-Hygiène Hospitalière), F-35000 Rennes, France
| | - Killian Le Neindre
- CHU Rennes, SB2H (Service de Bactériologie-Hygiène Hospitalière), F-35000 Rennes, France; INSERM, BRM (Bacterial RNAs and Medicine), University Rennes, UMR_S 1230, F-35000 Rennes, France
| | - Loren Dejoies
- CHU Rennes, SB2H (Service de Bactériologie-Hygiène Hospitalière), F-35000 Rennes, France; INSERM, BRM (Bacterial RNAs and Medicine), University Rennes, UMR_S 1230, F-35000 Rennes, France
| | - Caroline Piau
- CHU Rennes, SB2H (Service de Bactériologie-Hygiène Hospitalière), F-35000 Rennes, France
| | - Pierre-Yves Donnio
- CHU Rennes, SB2H (Service de Bactériologie-Hygiène Hospitalière), F-35000 Rennes, France; INSERM, BRM (Bacterial RNAs and Medicine), University Rennes, UMR_S 1230, F-35000 Rennes, France
| | - Guillaume Ménard
- CHU Rennes, SB2H (Service de Bactériologie-Hygiène Hospitalière), F-35000 Rennes, France; INSERM, BRM (Bacterial RNAs and Medicine), University Rennes, UMR_S 1230, F-35000 Rennes, France.
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Limiting the Spread of Multidrug-Resistant Bacteria in Low-to-Middle-Income Countries: One Size Does Not Fit All. Pathogens 2023; 12:pathogens12010144. [PMID: 36678492 PMCID: PMC9866331 DOI: 10.3390/pathogens12010144] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/19/2023] Open
Abstract
The spread of multidrug-resistant organisms (MDRO) is associated with additional costs as well as higher morbidity and mortality rates. Risk factors related to the spread of MDRO can be classified into four categories: bacterial, host-related, organizational, and epidemiological. Faced with the severity of the MDRO predicament and its individual and collective consequences, many scientific societies have developed recommendations to help healthcare teams control the spread of MDROs. These international recommendations include a series of control measures based on surveillance cultures and the application of barrier measures, ranging from patients' being isolated in single rooms, to the reinforcement of hand hygiene and implementation of additional contact precautions, to the cohorting of colonized patients in a dedicated unit with or without a dedicated staff. In addition, most policies include the application of an antimicrobial stewardship program. Applying international policies to control the spread of MDROs presents several challenges, particularly in low-to-middle-income countries (LMICs). Through a review of the literature, this work evaluates the real risks of dissemination linked to MDROs and proposes an alternative policy that caters to the means of LMICs. Indeed, sufficient evidence exists to support the theory that high compliance with hand hygiene and antimicrobial stewardship reduces the risk of MDRO transmission. LMICs would therefore be better off adopting such low-cost policies without necessarily having to implement costly isolation protocols or impose additional contact precautions.
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Neffe L, Forde TL, Oravcova K, Köhler U, Bautsch W, Tomasch J, Häussler S. Genomic epidemiology of clinical ESBL-producing Enterobacteriaceae in a German hospital suggests infections are primarily community- and regionally-acquired. Microb Genom 2022; 8:mgen000901. [PMID: 36748515 PMCID: PMC9837565 DOI: 10.1099/mgen.0.000901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Clinical Enterobacteriaceae isolates that produce extended-spectrum β-lactamases (ESBLs) have been increasingly reported at a global scale. However, comprehensive data on the molecular epidemiology of ESBL-producing strains are limited and few studies have been conducted in non-outbreak situations.We used whole-genome sequencing to describe the population structure of 294 ESBL-producing Escherichia coli and Klebsiella pneumoniae isolates that were recovered from a German community hospital throughout a 1 year sampling period in a non-outbreak situation.We found a high proportion of E. coli isolates (61.5 %) belonged to the globally disseminated extraintestinal pathogenic ST131, whereas a wider diversity of STs was observed among K. pneumoniae isolates. The E. coli ST131 population in this study was shaped by multiple introductions of strains as demonstrated by contextual genomic analysis including ST131 strains from other geographical sources. While no recent common ancestor of the isolates of the current study and other international isolates was found, our clinical isolates clustered with those previously recovered in the region. Furthermore, we found that the isolation of ESBL-producing clinical strains in hospitalized patients could only rarely be associated with likely patient-to-patient transmission, indicating primarily a community and regional acquisition of strains.Further genomic analyses of clinical, carriage and environmental isolates is needed to uncover hidden transmissions and thus discover the most common sources of ESBL-producing pathogen infections in our hospitals.
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Affiliation(s)
- Lisa Neffe
- Department of Molecular Bacteriology, Helmholtz Center for Infection Research, Braunschweig, Germany,Institute for Molecular Bacteriology, TWINCORE GmbH, Center of Clinical and Experimental Infection Research, a joint venture of the Hannover Medical School and the Helmholtz Center for Infection Research, Hannover, Germany
| | - Taya L. Forde
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Katarina Oravcova
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Ute Köhler
- Städtisches Klinikum Braunschweig gGmbH, Germany
| | | | - Jürgen Tomasch
- Department of Molecular Bacteriology, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Susanne Häussler
- Department of Molecular Bacteriology, Helmholtz Center for Infection Research, Braunschweig, Germany,Institute for Molecular Bacteriology, TWINCORE GmbH, Center of Clinical and Experimental Infection Research, a joint venture of the Hannover Medical School and the Helmholtz Center for Infection Research, Hannover, Germany,Department of Clinical Microbiology, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany,*Correspondence: Susanne Häussler,
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AbiGhosn J, AlAsmar M, Abboud E, Bailey BA, Haddad N. The Effect of Infection Precautions on Extended-Spectrum Beta-Lactamase Enterobacteriaceae Colonization Among Nurses in Three Beirut Hospitals. Cureus 2022; 14:e23849. [PMID: 35530839 PMCID: PMC9071177 DOI: 10.7759/cureus.23849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2022] [Indexed: 11/23/2022] Open
Abstract
Background and objective Extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE) are rapidly emerging worldwide. This study aimed to assess the effect of contact precaution (CP) on ESBL-PE-colonization rates among nurses in three hospitals in Beirut, Lebanon, where ESBL is endemic, in order to define the risk factors for colonization. Accordingly, the ongoing use of CP to prevent ESBL-PE transmission to healthy nurses was evaluated. Methods This cross-sectional study was conducted in three hospitals. Hospital 1 required CP, Hospital 2 had recently stopped CP, and Hospital 3 had stopped it three years previously. Questionnaires and stool-collection containers were distributed to all patient care nurses in those three hospitals. The Returned samples were tested using the agar dilution technique. Results A total of 269 out of 733 nurses volunteered to participate; 140 met the inclusion criteria (no recent hospitalization, antibiotic use, or known ESBL-PE colonization) and provided samples. Among them, 15% were ESBL-positive. Compared to nurses from Hospital 3, nurses from Hospital 1 were 59% less likely to be colonized, while nurses from Hospital 2 were 62% more likely to be colonized. Conclusion In hospitals where CP is in place for ESBL-positive patients, ESBL-PE prevalence in nursing staff was significantly lower. Additionally, a work experience of two to four years increased the odds of ESBL-PE colonization in comparison with longer nursing experience. CP may be a justifiable means of protection against ESBL-PE transmission to healthy nurses. The risk factors for colonization were discontinuation of CP and a shorter clinical work experience.
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Vuichard-Gysin D, Nueesch R, Fuerer RL, Dangel M, Widmer A. Measuring perception of mental well-being in patients under isolation precautions: a prospective comparative study. BMJ Open 2022; 12:e044639. [PMID: 35314467 PMCID: PMC8938694 DOI: 10.1136/bmjopen-2020-044639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Isolation precautions (IP) are applied to prevent transmission of pathogens in healthcare settings. Potential negative health outcomes experienced by patients have been previously described but results remain conflicting. We aimed at evaluating the psychological impact of IP in adult patients in isolation using a novel psychological assessment tool. STUDY DESIGN Prospective matched cohort study. SETTING Tertiary care centre in Switzerland. PARTICIPANTS Hospitalised patients under IP and non-isolated patients were matched by ward, age and illness severity. OUTCOME MEASURES We measured surrogates of mental and social well-being by using the Pictorial Representation of Illness and Self Measure (PRISM) instrument once during hospitalisation. PRISM is a visual psychometric instrument that has been validated as a quantitative measure of suffering. Smaller distance in self-to-illness separation (SIS) signifies higher importance for a patient. RESULTS 156 patients agreed to participate of which 63 were under IP and 93 were matched controls. Median (IQR) duration of isolation was 5 days (2-10). The median SIS (IQR) for perceived inferior nurses' care was 22.8 (18.5-24.3) and 23.8 (23.3-25.5) for isolated and non-isolated patients, respectively (p<0.001). Similarly, median SIS (IQR) was significantly smaller in isolated than non-isolated patients for avoidance by visitors with 17.5 (7.7-22.0) and 22.2 (21.8-22.6), for loneliness with 7.5 (3.6-16.0) and 18 (10.2-21.6) and for feeling impure with 19 (17.0-21.5) and 21.5 (18.9-22.1), respectively (all p values<0.05). CONCLUSIONS IP to prevent transmission of pathogens may negatively impact mental and social well-being. Measures to alleviate adverse effects of IP should be taken routinely.
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Affiliation(s)
- Danielle Vuichard-Gysin
- Internal Medicine, Spital Thurgau AG, Muensterlingen, Switzerland
- Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Reto Nueesch
- Department of Infectious Diseases, University Hospital Basel, Basel, Switzerland
- Internal Medicine, Schwyz Hospital, Schwyz, Switzerland
| | | | - Marc Dangel
- Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Andreas Widmer
- Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
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11
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Smith RM, Lautenbach E, Omulo S, Araos R, Call DR, Kumar GCP, Chowdhury F, McDonald CL, Park BJ. Human Colonization With Multidrug-Resistant Organisms: Getting to the Bottom of Antibiotic Resistance. Open Forum Infect Dis 2021; 8:ofab531. [PMID: 34805441 DOI: 10.1093/ofid/ofab531] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/14/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
- Rachel M Smith
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Ebbing Lautenbach
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sylvia Omulo
- Paul G. Allen School for Global Animal Health, Washington State University, Pullman, Washington, USA
| | - Rafael Araos
- Instituto de Ciencias e Innovación en Medicina Universidad del Desarrollo, Santiago, Chile
| | - Douglas R Call
- Paul G. Allen School for Global Animal Health, Washington State University, Pullman, Washington, USA
| | | | | | | | - Benjamin J Park
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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12
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Klauke P, Schwab F, Gastmeier P, Maechler F. The impact of non-antimicrobial drug agents on the acquisition of ESBL-producing Enterobacterales in non-critical care wards in a German university hospital: an exploratory, matched case-control study. J Antimicrob Chemother 2021; 77:229-236. [PMID: 34791310 DOI: 10.1093/jac/dkab373] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/03/2021] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES To investigate therapeutical drugs other than antimicrobials as risk factors for the acquisition of ESBL-producing Enterobacterales (ESBL-E). METHODS This matched case-control study is based on rectal surveillance screening data obtained during a larger trial between 2014 and 2016 upon patients' admission and at least once before discharge in eight non-ICU wards. Patients with ward-acquired ESBL-E (cases) were matched 1:1 to non-ESBL-E carriers (controls) based on ward, number of screening samples, days at risk and Charlson comorbidity index (CCI). Daily medication data were documented according to the Anatomical Therapeutic Chemical classification system. Multivariable conditional logistic regression models were used to calculate risk factors for ESBL-E acquisition. RESULTS Of the 232 cases and 232 controls analysed, baseline characteristics such as gender (male 56.9%), median age (65 years old, IQR 52-74), number of screening samples (N = 3, IQR 2-4), days to first sample (2, IQR 1-2), days at risk (8, IQR 6-11) and CCI (4, IQR 2-6) were similar. Multivariable analysis showed that glucocorticoids, opium alkaloids and selective β-2-adrenoreceptor agonists increased the chance to detect ESBL-E (OR 1.07, 95% CI 1.001-1.13, P = 0.047; OR 1.06, 95% CI 1.007-1.12, P = 0.027; and OR 1.31, 95% CI 1.105-1.55, P = 0.001, respectively), while antihistamines decreased it (OR 0.61, 95% CI 0.39-0.97, P = 0.034). In a sensitivity analysis, including drugs prescribed to at least 50 patients, proton pump inhibitors remained as risk factors (OR 1.049, 95% CI 1.001-1.100, P = 0.047). CONCLUSIONS In a non-ICU setting, drugs other than antimicrobials were determined as potential independent risk factors for ESBL-E acquisition.
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Affiliation(s)
- Paula Klauke
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Frank Schwab
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Petra Gastmeier
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Friederike Maechler
- Institute of Hygiene and Environmental Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
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13
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Larrosa MN, Almirante B. Isolation strategy for controlling the spread of multidrug-resistant organisms: Is this still an essential option in hospitals? ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2021; 39:425-428. [PMID: 34736746 PMCID: PMC8560164 DOI: 10.1016/j.eimce.2021.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 11/24/2022]
Affiliation(s)
- María Nieves Larrosa
- Microbiology Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain; Spanish Network of Investigation in Infectious Diseases (RD16/0016/0003), Spain.
| | - Benito Almirante
- Infectious Diseases Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain; Spanish Network of Investigation in Infectious Diseases (RD16/0016/0003), Spain
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14
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Modelling and Simulation of the Effect of Targeted Decolonisation on Incidence of Extended-Spectrum Beta-Lactamase-Producing Enterobacterales Bloodstream Infections in Haematological Patients. Infect Dis Ther 2021; 11:129-143. [PMID: 34665434 PMCID: PMC8847524 DOI: 10.1007/s40121-021-00550-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 10/11/2021] [Indexed: 11/21/2022] Open
Abstract
Introduction Haematological patients are at higher risk of bloodstream infections (BSI) after chemotherapy. The aim of this study was to develop a simulation model assessing the impact of selective digestive decontamination (SDD) of haematological patients colonised with extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-E) on the incidence of ESBL-E BSI after chemotherapy. Methods A patient population was created by a stochastic simulation model mimicking the patients’ states of colonisation with ESBL-E during hospitalisation. A systematic literature search was performed to inform the model. All ESBL-E carriers were randomised (1:1) to either the intervention (targeted SDD) or the control group (placebo). ESBL-E BSI incidence was the outcome of the model. Sensitivity analyses were performed by prevalence of ESBL-E carriage at hospital admission (low: < 10%, medium: 10–25%, high: > 25%), duration of neutropenia after receiving chemotherapy, administration of antibiotic prophylaxis with quinolones, and time interval between SDD and chemotherapy. Results The model estimated that the administration of targeted SDD before chemotherapy reduces the incidence of ESBL-E BSI in the hospitalised haematological population up to 27%. The greatest benefit was estimated in high-prevalence settings, regardless of the duration of neutropenia, the time interval before chemotherapy, and the administration of antibiotic prophylaxis with quinolones (p < 0.05). In medium-prevalence settings, SDD was effective in patients receiving quinolone prophylaxis, with either 1-day time interval before chemotherapy and a neutropenia duration > 6 days (p < 0.05) or 7-day time interval before chemotherapy and a neutropenia duration > 9 days (p < 0.05). No benefit was observed in low-prevalence settings. Conclusions Our model suggests that targeted SDD could decrease the rate of ESBL-E BSI in haematological carriers before chemotherapy in the setting of high ESBL-E prevalence at hospital admission. These estimates require confirmation by well-designed multicentre RCTs, including the assessment of the impact on resistance/disruption patterns of gut microbiome. Supplementary Information The online version contains supplementary material available at 10.1007/s40121-021-00550-3.
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15
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Larrosa MN, Almirante B. Isolation strategy for controlling the spread of multidrug-resistant organisms: Is this still an essential option in hospitals? Enferm Infecc Microbiol Clin 2021; 39:S0213-005X(21)00188-9. [PMID: 34154857 PMCID: PMC8213526 DOI: 10.1016/j.eimc.2021.04.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/02/2022]
Affiliation(s)
- María Nieves Larrosa
- Microbiology Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain; Spanish Network of Investigation in Infectious Diseases (RD16/0016/0003), Spain.
| | - Benito Almirante
- Infectious Diseases Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain; Spanish Network of Investigation in Infectious Diseases (RD16/0016/0003), Spain
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16
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Kizilates F, Yakupogullari Y, Berk H, Oztoprak N, Otlu B. Risk factors for fecal carriage of extended-spectrum beta-lactamase-producing and carbapenem-resistant Escherichia coli and Klebsiella pneumoniae strains among patients at hospital admission. Am J Infect Control 2021; 49:333-339. [PMID: 32763346 DOI: 10.1016/j.ajic.2020.07.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 12/23/2022]
Abstract
AIM Extended-spectrum beta-lactamase (ESBL)-producing and carbapenem-resistant (CR) Enterobacteriaceae are substantial problems in hospital-acquired infections worldwide. We analyzed the risk factors for fecal carriage of ESBL-positive and/or CR E. coli and K. pneumoniae (EcKp) strains in a hospital in Turkey, an endemic country for both resistances. MATERIALS AND METHODS A prospective cross-sectional study including the rectal swab samples of 168 patients, obtained at the day of admission, was conducted. ESBL-producing and CR EcKp were investigated with phenotypic tests and PCR, and the clonal relatedness of isolates was studied. Risk analysis was performed with logistic regression method. RESULTS A total of 67 (39.8%) and 21 (12.5%) patient samples tested positive for ESBL-producing and CR EcKp, respectively. CTX-M (n = 27) and OXA-48 (n = 12) were the dominant ESBL and carbapenemase types, and 4.5%-10.7% of the isolates were clonally-related. Among 15 potential risk factors studied, longer lengths of hospital stay and antimicrobial use, and receiving total parenteral nutrition in the last 6 months were determined as independent risk factors for fecal carriage of ESBL-producing and/or CR EcKp, while prior antimicrobial treatment was only a risk factor for ESBL producers. CONCLUSION Certain conditions in patients' medical backgrounds may be associated with increased likelihood of resistant bacterial colonization. Notably, questioning these situations at admission can help to identify potential carriers and proactively administer appropriate infection control measures.
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Affiliation(s)
- Filiz Kizilates
- Department of Infectious Diseases and Clinical Microbiology, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Yusuf Yakupogullari
- Department of Medical Microbiology, Inonu University Medical Faculty, Malatya, Turkey.
| | - Hande Berk
- Department of Infectious Diseases and Clinical Microbiology, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Nefise Oztoprak
- Department of Infectious Diseases and Clinical Microbiology, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Baris Otlu
- Department of Medical Microbiology, Inonu University Medical Faculty, Malatya, Turkey
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17
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Diriba K, Awulachew E, Gemede A, Anja A. The magnitude of extended-spectrum beta-lactamase- producing Enterobacteriaceae from clinical samples in Ethiopia: a systematic review and meta-analysis. Access Microbiol 2021; 3:000195. [PMID: 34151151 PMCID: PMC8209701 DOI: 10.1099/acmi.0.000195] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The rapid spread of resistance among extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae is a serious problem around the world. It results in serious clinical complications in humans and has become a global threat. Therefore, this systematic review and meta-analysis was aimed to estimate the pooled prevalence of ESBL-producing Enterobacteriaceae in different clinical samples in Ethiopia. METHODS A systematic search was conducted on PubMed, Web of Science, Embase, Google Scholar and the Cochrane Library. All identified observational studies reporting the prevalence of ESBL-producing Enterobacteriaceae from clinical samples in Ethiopia were included. Four authors independently extracted data and analysed using R software version 3.6.1 and STATA statistical software version 13. A random-effects model was computed to estimate the pooled prevalence of ESBL-producing Enterobacteriaceae in Ethiopia. RESULTS Of 142 articles reviewed, 14 studies that fulfilled the inclusion criteria were included in the meta-analysis. The pooled prevalence of ESBL-producing Enterobacteriaceae in the different clinical specimens in Ethiopia was 49 % (95 % CI: 39, 60). Klebsiella pneumoniae was the leading ESBL-producing Enterobacteriaceae followed by Escherichia coli and Acinetobacter baumannii with a prevalence of 74, 67 and 60 %, respectively. ESBL-producing isolates showed a high rate of resistance to cefotaxime, ceftriaxone, ceftazidime, Amoxicillin clavulanic acid (AMC), ampicillin and aztreonam. The better options for the treatment of ESBL-producing Enterobacteriaceae are amikacin and Imipenem. CONCLUSION The magnitude of ESBL-producing Enterobacteriaceae in different clinical samples in Ethiopia is alarmingly high and represents a threat to human health. Hence, a coordinated effort needs to be implemented for the prevention and control of these Enterobacteriaceae .
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Affiliation(s)
- Kuma Diriba
- Department of Medical Laboratory Sciences, Health Science and Medical College, Dilla University, Dilla, Ethiopia
| | - Ephrem Awulachew
- Department of Medical Laboratory Sciences, Health Science and Medical College, Dilla University, Dilla, Ethiopia
| | - Aschelew Gemede
- Department of Medical Laboratory Sciences, Health Science and Medical College, Dilla University, Dilla, Ethiopia
| | - Asrat Anja
- Department of Medical Laboratory Sciences, Health Science and Medical College, Dilla University, Dilla, Ethiopia
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18
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Taking off the gown: Impact of discontinuing contact precautions for extended-spectrum β-lactamase (ESBL)–producing organisms. ANTIMICROBIAL STEWARDSHIP & HEALTHCARE EPIDEMIOLOGY 2021; 1:e31. [PMID: 36168477 PMCID: PMC9495408 DOI: 10.1017/ash.2021.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/27/2021] [Accepted: 08/03/2021] [Indexed: 11/15/2022]
Abstract
Contact precautions are used to prevent the spread of extended-spectrum β-lactamase (ESBL)–producing organisms in acute-care hospitals, but supporting data are lacking. We discontinued such precautions for ESBL Escherichia coli and Klebsiella spp and found no increased prevalence of these organisms with our change in practice.
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19
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Vink J, Edgeworth J, Bailey SL. Acquisition of MDR-GNB in hospital settings: a systematic review and meta-analysis focusing on ESBL-E. J Hosp Infect 2020; 106:419-428. [PMID: 32918969 DOI: 10.1016/j.jhin.2020.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/03/2020] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-E) and other multi-drug-resistant Gram-negative bacteria (MDR-GNB) have disseminated globally since their discovery in the late 20th century. Various infection prevention and control measures are in place to prevent nosocomial transmission of these organisms, but their efficacy remains disputed. New literature has emerged in recent years providing further evidence which can be used to formulate effective strategies to tackle this issue in the future. METHODS A systematic review was performed to characterize the prevalence of colonization of multi-drug-resistant organisms and subsequent acquisition of these organisms within hospital settings. A meta-analysis was performed to characterize the prevalence and acquisition of ESBL-E in Europe and North America. RESULTS Twenty-eight studies fulfilled the inclusion criteria. Escherichia coli formed the main burden of MDR-GNB colonization worldwide. Patient-to-patient transmission of ESBL-E was found to be rare, but increased transmissibility of Klebsiella pneumoniae was described over E. coli. Within European and North American healthcare settings, a meta-analysis of eight studies identified a pooled prevalence of ESBL-E on admission to hospital of 7.91% and an acquisition rate of 3.73%. DISCUSSION Low prevalence at the point of hospital admission and insufficient evidence of patient-to-patient transmission suggests that infection prevention and control measures such as universal surveillance screening and single-room isolation are unlikely to be practical or effective interventions in reducing the overall burden of ESBL-E in hospitals, in line with current European guidelines. Instead, it is argued that efforts should be placed on controlling the spread of these organisms and other MDR-GNB in the community, predominantly long-term care facilities.
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Affiliation(s)
- J Vink
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Kings College London and Guy's & St Thomas' NHS Foundation Trust, London, UK.
| | - J Edgeworth
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Kings College London and Guy's & St Thomas' NHS Foundation Trust, London, UK
| | - S L Bailey
- Centre for Clinical Infection and Diagnostics Research, Department of Infectious Diseases, Kings College London and Guy's & St Thomas' NHS Foundation Trust, London, UK
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20
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Zahar JR, Blot S, Nordmann P, Martischang R, Timsit JF, Harbarth S, Barbier F. Screening for Intestinal Carriage of Extended-spectrum Beta-lactamase-producing Enterobacteriaceae in Critically Ill Patients: Expected Benefits and Evidence-based Controversies. Clin Infect Dis 2020; 68:2125-2130. [PMID: 30312366 DOI: 10.1093/cid/ciy864] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022] Open
Abstract
The rising burden of intensive care unit (ICU)-acquired infections due to extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E) strengthens the requirement for efficient prevention strategies. The detection of intestinal carriage of ESBL-E through active surveillance cultures (ASC) and the implementation of contact precautions (CP) in carriers are currently advocated in most high-income countries, to prevent cross-transmission and subsequent ESBL-E infections in critically-ill patients. Yet, recent studies have challenged the benefit of ASC and CP in controlling the spread of ESBL-E in ICUs with high compliance to standard hygiene precautions and no ongoing outbreak of ESBL-producing Klebsiella pneumoniae or Enterobacter spp. Besides, given their debated performance to positively predict which patients are at risk of ESBL-E infections, ASC results appear of limited value to rationalize the empirical use of carbapenems in the ICU, emphasizing the urgent need for novel anticipatory and diagnostic approaches. This Viewpoint article summarizes the available evidence on these issues.
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Affiliation(s)
- Jean-Ralph Zahar
- Infection Control Unit, Avicenne University Hospital, Assistance Publique - Hôpitaux de Paris, Bobigny.,INSERM, Infection Antimicrobial Modelling Evolution, UMR 1137, Paris Diderot, Sorbonne Paris Cité University, France
| | - Stijn Blot
- Department of Internal Medicine, Ghent University, Belgium.,Burns, Trauma and Critical Care Research Centre, Centre for Clinical Research, Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Patrice Nordmann
- Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, INSERM European Unit.,Swiss National Reference Center for Emerging Antibiotic Resistance (NARA), University of Fribourg.,Institute for Microbiology, University of Lausanne and University Hospital Centre
| | - Romain Martischang
- Infection Control Program and World Health Organization Collaborating Center, Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Switzerland
| | - Jean-François Timsit
- INSERM, Infection Antimicrobial Modelling Evolution, UMR 1137, Paris Diderot, Sorbonne Paris Cité University, France.,Medical and Infectious Diseases Intensive Care Unit, Bichat-Claude Bernard Hospital, APHP, Paris
| | - Stephan Harbarth
- Infection Control Program and World Health Organization Collaborating Center, Division of Infectious Diseases, Geneva University Hospitals and Faculty of Medicine, Switzerland
| | - François Barbier
- Medical Intensive Care Unit, La Source Hospital, Orléans, France
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21
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Biehl LM, Vehreschild MJGT. Contact precautions: no benefits, no indication. THE LANCET. INFECTIOUS DISEASES 2020; 20:516-517. [PMID: 32087117 DOI: 10.1016/s1473-3099(20)30017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/09/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Lena M Biehl
- Department I of Internal Medicine, Faculty of Medicine; and University Hospital of Cologne, University of Cologne, 50937 Cologne, Germany; German Centre of Infection Research (partner site Bonn-Cologne), Cologne, Germany.
| | - Maria J G T Vehreschild
- Department I of Internal Medicine, Faculty of Medicine; and University Hospital of Cologne, University of Cologne, 50937 Cologne, Germany; German Centre of Infection Research (partner site Bonn-Cologne), Cologne, Germany; Department of Internal Medicine, Infectious Diseases, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt, Germany
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22
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Nair R, Perencevich EN, Goto M, Livorsi DJ, Balkenende E, Kiscaden E, Schweizer ML. Patient care experience with utilization of isolation precautions: systematic literature review and meta-analysis. Clin Microbiol Infect 2020; 26:684-695. [PMID: 32006691 DOI: 10.1016/j.cmi.2020.01.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 12/16/2019] [Accepted: 01/18/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND Use of isolation precautions (IP) may represent a trade-off between reduced transmission of infectious pathogens and reduced patient satisfaction with their care. OBJECTIVE To perform a systematic literature review and meta-analysis to identify if and how IPs impact patients' care experiences. DATA SOURCES Medline, ClinicalTrials.gov, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Embase, PsychInfo, HSRProj and Cochrane Library databases. STUDY ELIGIBILITY CRITERIA Interventional and observational studies published January 1990 to May 2019 were eligible for inclusion. PARTICIPANTS Patients admitted to an acute-care facility. INTERVENTIONS IPs versus no IPs. METHODS Six reviewers screened titles, abstracts and full text. Experience of care reported by patients using the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey was assessed as the outcome for the meta-analysis. Pooled odds ratios were calculated using the random-effects model. Heterogeneity was assessed using the I2 value. RESULTS After screening 7073 titles and abstracts, 15 independent studies were included in the review. Pooling of unadjusted estimates from the HCAHPS survey demonstrated that IP patients were less likely to give top scores on questions pertaining to respect, communication, receiving assistance and cleanliness compared to the no-IP patients. Patients under IP with longer length of stay appeared to have more negative experiences with the care received during their stay compared to no IP. CONCLUSIONS Patients under IP were more likely to be dissatisfied with several aspects of patient care compared to patients not under IP. It is crucial to educate patients and healthcare workers in order to balance successful implementation of IP and patient care experiences, particularly in healthcare settings where it may be beneficial.
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Affiliation(s)
- R Nair
- Center for Access & Delivery Research & Evaluation (CADRE), Iowa City Veterans Affairs Health Care System, USA; Department of Internal Medicine, University of Iowa Carver College of Medicine, USA
| | - E N Perencevich
- Center for Access & Delivery Research & Evaluation (CADRE), Iowa City Veterans Affairs Health Care System, USA; Department of Internal Medicine, University of Iowa Carver College of Medicine, USA
| | - M Goto
- Center for Access & Delivery Research & Evaluation (CADRE), Iowa City Veterans Affairs Health Care System, USA; Department of Internal Medicine, University of Iowa Carver College of Medicine, USA
| | - D J Livorsi
- Center for Access & Delivery Research & Evaluation (CADRE), Iowa City Veterans Affairs Health Care System, USA; Department of Internal Medicine, University of Iowa Carver College of Medicine, USA
| | - E Balkenende
- Center for Access & Delivery Research & Evaluation (CADRE), Iowa City Veterans Affairs Health Care System, USA; Department of Internal Medicine, University of Iowa Carver College of Medicine, USA
| | - E Kiscaden
- Hardin Library for Health Sciences, University of Iowa, Iowa City, IA, USA
| | - M L Schweizer
- Center for Access & Delivery Research & Evaluation (CADRE), Iowa City Veterans Affairs Health Care System, USA; Department of Internal Medicine, University of Iowa Carver College of Medicine, USA.
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Risk factors for Klebsiella pneumoniae carbapenemase (KPC) gene acquisition and clinical outcomes across multiple bacterial species. J Hosp Infect 2020; 104:456-468. [PMID: 31931046 PMCID: PMC7193892 DOI: 10.1016/j.jhin.2020.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/03/2020] [Indexed: 11/25/2022]
Abstract
Introduction Risk factors for carbapenemase-producing Enterobacterales (CPE) acquisition/infection and associated clinical outcomes have been evaluated in the context of clonal, species-specific outbreaks. Equivalent analyses for complex, multi-species outbreaks, which are increasingly common, are lacking. Methods Between December 2010 and January 2017, a case–control study of Klebsiella pneumoniae carbapenemase (KPC)-producing organism (KPCO) acquisition was undertaken using electronic health records from inpatients in a US academic medical centre and long-term acute care hospital (LTACH) with ongoing multi-species KPCO transmission despite a robust CPE screening programme. Cases had a first KPCO-positive culture >48 h after admission, and included colonizations and infections (defined by clinical records). Controls had at least two negative perirectal screens and no positive cultures. Risk factors for KPCO acquisition, first infection following acquisition, and 14-day mortality following each episode of infection were identified using multi-variable logistic regression. Results In 303 cases (89 with at least one infection) and 5929 controls, risk factors for KPCO acquisition included: longer inpatient stay, transfusion, complex thoracic pathology, mechanical ventilation, dialysis, and exposure to carbapenems and β-lactam/β-lactamase inhibitors. Exposure to other KPCO-colonized patients was only a risk factor for acquisition in a single unit, suggesting that direct patient-to-patient transmission did not play a major role. There were 15 species of KPCO; 61 (20%) cases were colonized/infected with more than one species. Fourteen-day mortality following non-urinary KPCO infection was 20% (20/97 episodes) and was associated with failure to achieve source control. Conclusions Healthcare exposures, antimicrobials and invasive procedures increased the risk of KPCO colonization/infection, suggesting potential targets for infection control interventions in multi-species outbreaks. Evidence for patient-to-patient transmission was limited.
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Xercavins M, Jiménez E, Padilla E, Riera M, Freixas N, Boix-Palop L, Pérez J, Calbo E. High clonal diversity of ESBL-producing Klebsiella pneumoniae isolates from clinical samples in a non-outbreak situation. A cohort study. Antimicrob Resist Infect Control 2020; 9:5. [PMID: 31911833 PMCID: PMC6942317 DOI: 10.1186/s13756-019-0661-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 12/06/2019] [Indexed: 02/05/2023] Open
Abstract
Background Klebsiella pneumoniae has been responsible for a large number of clonal hospital outbreaks. However, some epidemiological changes have been observed since the emergence of CTX-M enzymes in K. pneumoniae. Aim To analyse the transmission dynamics of Extended Spectrum β-Lactamase-producing Klebsiella pneumoniae (ESBL-Kp) in an acute care hospital. Methods In 2015 a prospective cohort study was conducted. All new consecutive adult patients with ESBL-Kp isolates in all clinical samples were included. Patients with a previous known infection/colonization by ESBL-Kp and patients in high risk areas (e.g., intensive care units) were excluded. Cross-transmission was defined as the carriage of a clonally-related ESBL-Kp between newly diagnosed patients who shared the same ward for ≥48 h with another case, within a maximum time window of 4 weeks. ESBL-production was confirmed using the double-disk diffusion method and PCR. Clonal relationships were investigated by rep-PCR and multilocus sequence typing (MLST). Results Sixty ESBL-Kp isolates from 60 patients were included and analysed. Infections and colonizations were classified as hospital-acquired (52%), healthcare-related (40%) or community-acquired (8%).High genetic diversity was detected. When epidemiological clinical data were combined with the rep-PCR, the patterns identified did not show any cases of cross-transmission. ESBL-Kp were detected in 12.5% of environmental samples. No clonal relationship could be established between environmental reservoirs and patients. The genetic mechanism detected in all strains was associated with blaCTX-M genes, and 97% were CTX-M-15. Conclusions The dynamics of ESBL-K. pneumoniae isolated in our setting could not be explained by clonal transmission from an index patient. A polyclonal spread of ESBL-Kp was identified.
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Affiliation(s)
- Mariona Xercavins
- Microbiology Department, CATLAB, Terrassa, Barcelona Spain
- Universitat Internacional de Catalunya, C/ Josep Trueta s/n, 08195 Sant Cugat del Vallès, Barcelona Spain
| | - Elena Jiménez
- Microbiology Department, CATLAB, Terrassa, Barcelona Spain
| | - Emma Padilla
- Microbiology Department, CATLAB, Terrassa, Barcelona Spain
| | - Montserrat Riera
- Infectious Disease Unit. Department of Internal Medicine, Hospital Universitari Mutua de Terrassa, Plaza Dr Robert 5, 08221 Terrassa, Barcelona Spain
| | - Núria Freixas
- Infectious Disease Unit. Department of Internal Medicine, Hospital Universitari Mutua de Terrassa, Plaza Dr Robert 5, 08221 Terrassa, Barcelona Spain
| | - Lucia Boix-Palop
- Universitat Internacional de Catalunya, C/ Josep Trueta s/n, 08195 Sant Cugat del Vallès, Barcelona Spain
- Infectious Disease Unit. Department of Internal Medicine, Hospital Universitari Mutua de Terrassa, Plaza Dr Robert 5, 08221 Terrassa, Barcelona Spain
| | - Josefa Pérez
- Microbiology Department, CATLAB, Terrassa, Barcelona Spain
| | - Esther Calbo
- Universitat Internacional de Catalunya, C/ Josep Trueta s/n, 08195 Sant Cugat del Vallès, Barcelona Spain
- Infectious Disease Unit. Department of Internal Medicine, Hospital Universitari Mutua de Terrassa, Plaza Dr Robert 5, 08221 Terrassa, Barcelona Spain
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Massart N, Camus C, Benezit F, Moriconi M, Fillatre P, Le Tulzo Y. Incidence and risk factors for acquired colonization and infection due to extended-spectrum beta-lactamase-producing Gram-negative bacilli: a retrospective analysis in three ICUs with low multidrug resistance rate. Eur J Clin Microbiol Infect Dis 2020; 39:889-895. [PMID: 31898797 PMCID: PMC7222057 DOI: 10.1007/s10096-019-03800-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/17/2019] [Indexed: 12/20/2022]
Abstract
The purpose of this study is to assess risk factors for the acquisition of extended-spectrum β-lactamase-producing Gram-negative bacilli (ESBL-GNB) colonization and infection (AI) in ICUs with low ESBL-GNB prevalence rate. We conducted a retrospective observational study in three ICUs in Bretagne, France. All patients admitted from January 2016 to September 2017 with a length of stay of 2 days or more were included. Universal screening for ESBL-GNB colonization was performed in all participating ICUs. Of the 3250 included patients, 131 (4.0%) were colonized at admission, 59 acquired colonization while hospitalized (1.9%; 95% CI [1.5–2.5%]), and 15 (0.5%; 95% CI [0.3–0.8%]) acquired ESBL-GNB infections. In the case of infection, the specificity and the negative predictive values of preexistent colonization for the ESBL-GNB etiology were 93.2% [91.5–95.1%] and 95.2% [93.5–97.1%], respectively. Colonization was the main risk factor for ESBL-GNB AI (OR = 9.61; 95% CI [2.86–32.29]; p < 0.001). Antimicrobial susceptibility of non-ESBL-GNB isolates responsible for AI was similar for any non-carbapenem β-lactam (95%) and imipenem (94%). ESBL-GNB AIs were rare in ICUs with low ESBL-GNB prevalence rate. Prior colonization was the main risk factor for subsequent infection. Empirical carbapenem therapy could be avoided in non ESBL-GNB colonized patients with suspected AI.
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Affiliation(s)
- Nicolas Massart
- Service de Maladie Infectieuse et de Réanimation Médicale CHU de Rennes, 2, rue Henri le Guilloux, 35000, Rennes, France. .,Faculté de Médecine, Biosit, Université Rennes 1, F-35043, Rennes, France.
| | - Christophe Camus
- Service de Maladie Infectieuse et de Réanimation Médicale CHU de Rennes, 2, rue Henri le Guilloux, 35000, Rennes, France.,Faculté de Médecine, Biosit, Université Rennes 1, F-35043, Rennes, France.,Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, IFR 140, F-35033, Rennes, France
| | - François Benezit
- Service de Maladie Infectieuse et de Réanimation Médicale CHU de Rennes, 2, rue Henri le Guilloux, 35000, Rennes, France.,Faculté de Médecine, Biosit, Université Rennes 1, F-35043, Rennes, France.,Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, IFR 140, F-35033, Rennes, France
| | - Mikael Moriconi
- Service de Réanimation, CH de Quimper, 14bis Avenue Yves Thépot, 29107, Quimper, France
| | - Pierre Fillatre
- Service de Réanimation, CH de St Brieuc, 10, rue Henry le Guilloux, 22000, Saint-Brieuc, France
| | - Yves Le Tulzo
- Service de Maladie Infectieuse et de Réanimation Médicale CHU de Rennes, 2, rue Henri le Guilloux, 35000, Rennes, France.,Faculté de Médecine, Biosit, Université Rennes 1, F-35043, Rennes, France.,Inserm-CIC-1414, Faculté de Médecine, Université Rennes I, IFR 140, F-35033, Rennes, France
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26
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Thompson P, Teter J, Atrubin K. Incidence of health care-associated extended-spectrum β-lactamase-positive patients before and after discontinuation of contact precautions. Am J Infect Control 2020; 48:52-55. [PMID: 31358415 DOI: 10.1016/j.ajic.2019.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Isolation of patients with multidrug-resistant organisms has been recommended in several guidelines. Recent evidence has suggested potential negative effects of isolation on patient well-being and facility throughput. Published literature shows a difference in transmission risk of extended-spectrum β-lactamase (ESBL)-producing organisms, suggesting that contact precautions may not be necessary for all ESBL-positive organisms. METHODS Incidence rates of health care-associated ESBL organisms were measured before and after eliminating the use of contact precautions for patients with only ESBL-positive organisms. The National Healthcare Safety Network surveillance methodology was used to measure incidence. Surgical site infections and carbapenem-resistant Enterobacteriaceae were excluded from the surveillance incidence. RESULTS The incidence of health care-associated ESBL infections from January 2014 through November 2015 was 3.71 per 10,000 patient days. The incidence from December 2015 through August 2017 was 3.00 per 10,000 patient days. This rate change was statistically significant (P = .022) CONCLUSIONS: This study found that discontinuing the use of contact precautions for patients colonized or infected with ESBL-positive organisms did not lead to an increased rate of health care-associated ESBL-positive infections or colonization.
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27
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Satlin MJ, Chavda KD, Baker TM, Chen L, Shashkina E, Soave R, Small CB, Jacobs SE, Shore TB, van Besien K, Westblade LF, Schuetz AN, Fowler VG, Jenkins SG, Walsh TJ, Kreiswirth BN. Colonization With Levofloxacin-resistant Extended-spectrum β-Lactamase-producing Enterobacteriaceae and Risk of Bacteremia in Hematopoietic Stem Cell Transplant Recipients. Clin Infect Dis 2019; 67:1720-1728. [PMID: 29701766 DOI: 10.1093/cid/ciy363] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 04/24/2018] [Indexed: 11/13/2022] Open
Abstract
Background Bacteremia caused by extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (ESBL-E) is associated with inadequate empirical therapy and substantial mortality in neutropenic patients. Strategies are needed to identify neutropenic patients at high risk of these infections. Methods From April 2014 to September 2016, we collected perianal swabs, both at admission and weekly thereafter, from patients undergoing hematopoietic stem cell transplantation (HSCT). Patients received prophylactic levofloxacin while neutropenic. Swabs were plated onto selective agar, colonies were identified and underwent antimicrobial susceptibility testing, and phenotypic ESBL testing and polymerase chain reaction for β-lactamase genes were performed on ceftriaxone-resistant Enterobacteriaceae. We then determined the prevalence of pre-transplant ESBL-E colonization and risk of ESBL-E bacteremia. Colonizing and bloodstream isolates from patients with ESBL-E bacteremia underwent multilocus sequence typing and pulsed-field gel electrophoresis. Results We analyzed 312 patients, including 212 allogeneic and 100 autologous HSCT recipients. Ten percent (31/312) of patients had pre-transplant ESBL-E colonization. Susceptibility rates of colonizing ESBL-E were: levofloxacin, 25%; cefepime, 9%; piperacillin-tazobactam, 84%; and meropenem, 97%. Of 31 patients colonized with ESBL-E pre-transplant, 10 (32%) developed ESBL-E bacteremia during their transplant admission, compared to 1 (0.4%) of 281 patients not colonized with ESBL-E (P < .001). All bloodstream ESBL-E were levofloxacin-resistant and colonizing and bloodstream isolates from individual patients had identical genotypic profiles. Conclusions HSCT recipients who are colonized with levofloxacin-resistant ESBL-E pre-transplant and receive levofloxacin prophylaxis have high rates of bacteremia from their colonizing strain during neutropenia. Assessing for ESBL-E colonization in neutropenic patients could lead to optimization of empirical antibacterial therapy.
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Affiliation(s)
- Michael J Satlin
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York
| | - Kalyan D Chavda
- Public Health Research Institute, Rutgers New Jersey Medical School, Newark
| | - Thomas M Baker
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York.,Clinical Immunology, Janssen Research & Development, Spring House, Pennsylvania
| | - Liang Chen
- Public Health Research Institute, Rutgers New Jersey Medical School, Newark
| | - Elena Shashkina
- Public Health Research Institute, Rutgers New Jersey Medical School, Newark
| | - Rosemary Soave
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York
| | - Catherine B Small
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York
| | - Samantha E Jacobs
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York.,Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Tsiporah B Shore
- Division of Hematology and Oncology, Weill Cornell Medicine, New York, New York
| | - Koen van Besien
- Division of Hematology and Oncology, Weill Cornell Medicine, New York, New York
| | - Lars F Westblade
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York.,Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York
| | - Audrey N Schuetz
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York.,Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York.,Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota
| | - Vance G Fowler
- Division of Infectious Diseases, Duke University Medical Center, Durham, North Carolina
| | - Stephen G Jenkins
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York.,Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York
| | - Thomas J Walsh
- Division of Infectious Diseases, Weill Cornell Medicine, New York, New York.,Departments of Pediatrics and Microbiology and Immunology, Weill Cornell Medicine, New York, New York
| | - Barry N Kreiswirth
- Public Health Research Institute, Rutgers New Jersey Medical School, Newark
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28
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van Dulm E, Tholen ATR, Pettersson A, van Rooijen MS, Willemsen I, Molenaar P, Damen M, Gruteke P, Oostvogel P, Kuijper EJ, Hertogh CMPM, Vandenbroucke-Grauls CMJE, Scholing M. High prevalence of multidrug resistant Enterobacteriaceae among residents of long term care facilities in Amsterdam, the Netherlands. PLoS One 2019; 14:e0222200. [PMID: 31513682 PMCID: PMC6742385 DOI: 10.1371/journal.pone.0222200] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 08/24/2019] [Indexed: 12/19/2022] Open
Abstract
Introduction The aim of this study was to determine the rate of asymptomatic carriage and spread of multidrug-resistant micro-organisms (MDRO) and to identify risk factors for extended spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E) carriage in 12 long term care facilities (LTCFs) in Amsterdam, the Netherlands. Materials and methods From November 2014 to august 2015, feces and nasal swabs from residents from LTCFs in Amsterdam, the Netherlands were collected and analyzed for presence of multidrug-resistant Gram-negative bacteria (MDRGN), including ESBL-E, carbapenemase-producing Enterobacteriaceae (CPE), colistin-resistant Enterobacteriaceae and methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE). Logistic regression analysis was performed to assess associations between variables and ESBL-carriage. Results In total, 385 residents from 12 LTCFs (range 15–48 residents per LTCF) were enrolled. The prevalence of carriage of MDRGN was 18.2% (range among LTCFs 0–47%) and the prevalence of ESBL-E alone was 14.5% (range among LTCFs: 0–34%). Of 63 MDRGN positive residents, 50 (79%) were ESBL-E positive of which 43 (86%) produced CTX-M. Among 44 residents with ESBL-E positive fecal samples of whom data on contact precautions were available at the time of sampling, only 9 (20%) were already known as ESBL-E carriers. The prevalence for carriage of MRSA was 0.8% (range per LTCF: 0–7%) and VRE 0%. One CPE colonized resident was found. All fecal samples tested negative for presence of plasmid mediated resistance for colistin (MCR-1). Typing of isolates by Amplified Fragment Length Polymorphism (AFLP) showed five MDRGN clusters, of which one was found in multiple LTCFs and four were found in single LTCFs, suggesting transmission within and between LTCFs. In multivariate analysis only the presence of MDRO in the preceding year remained a risk factor for ESBL-E carriage. Conclusions The ESBL-carriage rate of residents in LTCFs is nearly two times higher than in the general population but varies considerably among LTCFs in Amsterdam, whereas carriage of MRSA and VRE is low. The majority (80%) of ESBL-E positive residents had not been detected by routine culture of clinical specimens at time of sampling. Current infection control practices in LTCFs in Amsterdam do not prevent transmission. Both improvement of basic hygiene, and funding for laboratory screening, should allow LTCFs in Amsterdam to develop standards of care to prevent transmission of ESBL-E.
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Affiliation(s)
- Eline van Dulm
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, the Netherlands
| | - Aletta T. R. Tholen
- Centre for Zoonoses and Environmental Microbiology, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Annika Pettersson
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Martijn S. van Rooijen
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, the Netherlands
| | - Ina Willemsen
- Department of Medical Microbiology and Infection Control, Amphia Hospital, Breda, the Netherlands
| | - Peter Molenaar
- National Coordination Centre for Communicable Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Marjolein Damen
- Department of Medical Microbiology, Maasstad General Hospital, Rotterdam, the Netherlands
| | - Paul Gruteke
- Department of Medical Microbiology, OLVG Lab BV, Amsterdam, the Netherlands
| | - Paul Oostvogel
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, the Netherlands
| | - Ed J. Kuijper
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Cees M. P. M. Hertogh
- Department of General Practice & Elderly Care Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | | | - Maarten Scholing
- Department of Medical Microbiology, OLVG Lab BV, Amsterdam, the Netherlands
- * E-mail:
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29
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Prevel R, Boyer A, M’Zali F, Cockenpot T, Lasheras A, Dubois V, Gruson D. Extended spectrum beta-lactamase producing Enterobacterales faecal carriage in a medical intensive care unit: low rates of cross-transmission and infection. Antimicrob Resist Infect Control 2019; 8:112. [PMID: 31333839 PMCID: PMC6617905 DOI: 10.1186/s13756-019-0572-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/04/2019] [Indexed: 12/23/2022] Open
Abstract
Background Extended-spectrum beta-lactamases-producing Enterobacterales (ESBL-E) are disseminating worldwide especially in Intensive Care Units (ICUs) and are responsible for increased health costs and mortality. The aims of this work were to study ESBL-E dissemination in ICU and to assess the impact of ESBL-E fecal carriage on subsequent infections during a non-outbreak situation. Methods We therefore screened every patient at admission then once a week in a medical ICU between January and June 2015. Each ESBL-E isolate was characterized by ESBL genes PCR amplification and the clonal dissemination was assessed by Pulsed-Field Gel Electrophoresis (PFGE). Results Among the 608 screened patients, 55 (9%) were colonized by ESBL-E. Forty-four isolates were available for further analysis. Most of them (43/44, 98%) contained a ESBL gene from the CTX-M group. Only one case of ESBL-E cross-transmission occurred, even for acquired ESBL-E colonization. Subsequent infection by ESBL-E occurred in 6/55 (11%) patients and infecting ESBL-E strains were the colonizing ones. ESBL-E faecal carriage had a negative predictive value of 100% and a positive predictive value of 40% to predict ESBL-E ventilator associated-pneumonia (VAP). Alternatives to carbapenems consisting in piperacillin-tazobactam, ceftolozane-tazobactam and ceftazidime-avibactam were all active on this panel of ESBL-E. Conclusions ESBL-E expansion and acquisition in ICU in a non-outbreak situation are not any more fully explained by cross-transmission. Mechanisms underlying ESBL-E dissemination in ICU are still to investigate. Interestingly, as far as we know, our study demonstrates for the first time by PFGE that the colonizing strain is indeed the infecting one in case of subsequent ESBL-E infection. Nevertheless, subsequent ESBL-E infection remains a rare event conferring poor positive predictive value for ESBL-E colonization to predict ESBL-E VAP. Relevance of systematic ESBL-E faecal screening at ICU admission and during ICU stay needs further investigation.
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Affiliation(s)
- Renaud Prevel
- Medical Intensive Care Unit, CHU Bordeaux, Pellegrin universitary hospital, Place Amélie Raba-Léon, F-33000 Bordeaux, France
- UMR 5234 CNRS, Bordeaux University, F-33000 Bordeaux, France
| | - Alexandre Boyer
- Medical Intensive Care Unit, CHU Bordeaux, Pellegrin universitary hospital, Place Amélie Raba-Léon, F-33000 Bordeaux, France
| | - Fatima M’Zali
- UMR 5234 CNRS, Bordeaux University, F-33000 Bordeaux, France
| | | | | | - Véronique Dubois
- UMR 5234 CNRS, Bordeaux University, F-33000 Bordeaux, France
- Bacteriology laboratory, CHU Bordeaux, F-33000 Bordeaux, France
| | - Didier Gruson
- Medical Intensive Care Unit, CHU Bordeaux, Pellegrin universitary hospital, Place Amélie Raba-Léon, F-33000 Bordeaux, France
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Skjøt-Arkil H, Mogensen CB, Lassen AT, Johansen IS, Chen M, Petersen P, Andersen KV, Ellermann-Eriksen S, Møller JM, Ludwig M, Fuglsang-Damgaard D, Nielsen FE, Petersen DB, Jensen US, Rosenvinge FS. Carrier prevalence and risk factors for colonisation of multiresistant bacteria in Danish emergency departments: a cross-sectional survey. BMJ Open 2019; 9:e029000. [PMID: 31253624 PMCID: PMC6609076 DOI: 10.1136/bmjopen-2019-029000] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVES The aim of this study was to describe the carrier prevalence and demographic variation of four different multiresistant bacteria (MRB) among acute patients in Danish emergency departments (EDs): methicillin-resistant Staphylococcus aureus (MRSA), carbapenemase-producing enterobacteria (CPE), extended-spectrum beta-lactamase-producing enterobacteria (ESBL) and vancomycin-resistant enterococci (VRE), and to analyse the association of MRB carriage to a range of potential risk factors. DESIGN Multicentre descriptive and analytic cross-sectional survey. SETTING Eight EDs and four clinical microbiology departments in Denmark. PARTICIPANTS Adults visiting the ED. MAIN OUTCOME MEASURES Swabs from nose, throat and rectum were collected and analysed for MRSA, ESBL, VRE and CPE. The primary outcome was the prevalence of MRB carriage, and secondary outcomes relation to risk factors among ED patients. RESULTS We included 5117 patients in the study. Median age was 68 years (54-77) and gender was equally distributed. In total, 266 (5.2%, 95% CI 4.6 to 5.8) were colonised with at least one MRB. No significant difference was observed between male and female patients, between age groups and between university and regional hospitals. Only 5 of the 266 patients with MRB were colonised with two of the included bacteria and none with more than two. CPE prevalence was 0.1% (95% CI 0.0 to 0.2), MRSA prevalence was 0.3% (95% CI 0.2 to 0.5), VRE prevalence was 0.4% (95% CI 0.3 to 0.6) and ESBL prevalence was 4.5% (95% CI 3.9 to 5.1). Risk factors for MRB carriage were previous antibiotic treatment, previous hospital stay, having chronic respiratory infections, use of urinary catheter and travel to Asia, Oceania or Africa. CONCLUSION Every 20th patient arriving to a Danish ED brings MRB to the hospital. ESBL is the most common MRB in the ED. The main risk factors for MRB carriage are recent antibiotic use and travel abroad. TRIAL REGISTRATION NUMBER NCT03352167;Post-results.
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Affiliation(s)
- Helene Skjøt-Arkil
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Emergency Department, Hospital Sønderjylland, Aabenraa, Denmark
| | | | | | - Isik S Johansen
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
| | - Ming Chen
- Department of Clinical Microbiology, Hospital Sønderjylland, Soenderborg, Denmark
| | | | - Karen V Andersen
- Emergency Department, Aarhus University Hospital, Aarhus, Denmark
| | | | - Jørn M Møller
- Emergency Department, Aalborg University Hospital, Aalborg, Denmark
| | - Marc Ludwig
- Emergency Department, North Denmark Regional Hospital, Hjørring, Denmark
| | | | | | - Dan B Petersen
- Emergency Department, Zealand University Hospital, Køge, Denmark
| | - Ulrich S Jensen
- Department of Clinical Microbiology, Slagelse Sygehus, Slagelse, Denmark
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Abstract
Hypervirulent K. pneumoniae (hvKp) is an evolving pathotype that is more virulent than classical K. pneumoniae (cKp). hvKp usually infects individuals from the community, who are often healthy. Infections are more common in the Asian Pacific Rim but are occurring globally. hvKp infection frequently presents at multiple sites or subsequently metastatically spreads, often requiring source control. hvKp has an increased ability to cause central nervous system infection and endophthalmitis, which require rapid recognition and site-specific treatment. The genetic factors that confer hvKp's hypervirulent phenotype are present on a large virulence plasmid and perhaps integrative conjugal elements. Increased capsule production and aerobactin production are established hvKp-specific virulence factors. Similar to cKp, hvKp strains are becoming increasingly resistant to antimicrobials via acquisition of mobile elements carrying resistance determinants, and new hvKp strains emerge when extensively drug-resistant cKp strains acquire hvKp-specific virulence determinants, resulting in nosocomial infection. Presently, clinical laboratories are unable to differentiate cKp from hvKp, but recently, several biomarkers and quantitative siderophore production have been shown to accurately predict hvKp strains, which could lead to the development of a diagnostic test for use by clinical laboratories for optimal patient care and for use in epidemiologic surveillance and research studies.
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Affiliation(s)
- Thomas A Russo
- Department of Medicine, University at Buffalo-State University of New York, Buffalo, New York, USA
- Department of Microbiology and Immunology, University at Buffalo-State University of New York, Buffalo, New York, USA
- The Witebsky Center for Microbial Pathogenesis, University at Buffalo-State University of New York, Buffalo, New York, USA
- The Veterans Administration Western New York Healthcare System, Buffalo, New York, USA
| | - Candace M Marr
- Department of Medicine, University at Buffalo-State University of New York, Buffalo, New York, USA
- Erie County Medical Center, Buffalo, New York, USA
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Prevel R, Boyer A, M'Zali F, Lasheras A, Zahar JR, Rogues AM, Gruson D. Is systematic fecal carriage screening of extended-spectrum beta-lactamase-producing Enterobacteriaceae still useful in intensive care unit: a systematic review. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:170. [PMID: 31088542 PMCID: PMC6518813 DOI: 10.1186/s13054-019-2460-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/26/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-E) are disseminating worldwide leading to increased hospital length of stay and mortality in intensive care units (ICU). ESBL-E dissemination was first due to outbreaks in hospital settings which led to the implementation of systematic fecal carriage screening to improve hygiene procedures by contact precautions. ESBLs have since spread in the community, and the relevance of contact precautions is questioned. ESBL-E dissemination led to an overuse of carbapenems triggering the emergence of carbapenem-resistant Enterobacteriaceae. Empirical antimicrobial therapy based on ESBL-E fecal carriage has been proposed but is debated as it could increase the consumption of carbapenems among ESBL-E carriers without any clinical benefit. Finally, selective decontamination among ESBL-E fecal carriers is evoked to decrease the risk for subsequent ESBL-E infection, but its efficacy remains debated. We propose to systematically review the evidence to recommend or not such systematic ESBL-E fecal carriage screening in adult ICU. METHODS Every article focusing on ESBL-E and ICU available on the MEDLINE database was assessed. Articles were included if focusing on cross-transmission, efficacy of hygiene procedures, link between ESBL-E colonization and infection or guidance of empirical therapy or selective decontamination efficacy. RESULTS Among 330 articles referenced on PubMed, 39 abstracts were selected for full-text assessment and 25 studies were included. Systematic screening of ESBL-E fecal carriage to guide contact precautions do not seem to decrease the rate of ESBL-E cross-transmission. It has a very good negative predictive value for subsequent ESBL-E infections but a positive predictive value between 40 and 50% and so does not help to spare carbapenems. Cessation of ESBL-E carriage systematic screening could decrease the use of carbapenems in ICU without any clinical harm. Nevertheless, further studies are needed to validate these results from monocentric before-after study. Selective decontamination strategy applied to ESBL-E fecal carriers could be helpful, but available data are conflicting. CONCLUSION Current knowledge lacks of high-quality evidence to strongly recommend in favor of or against a systematic ESBL-E fecal carriage screening policy for ICU patients in a non-outbreak situation. Further evaluation of selective decontamination or fecal microbiota transplantation among ESBL-E fecal carriers is needed.
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Affiliation(s)
- Renaud Prevel
- CHU Bordeaux, Medical Intensive Care Unit, Pellegrin Hospital, F-33000, Bordeaux, France. .,UMR 5234 CNRS, Bordeaux University, F-33000, Bordeaux, France. .,, Bordeaux, France.
| | - Alexandre Boyer
- CHU Bordeaux, Medical Intensive Care Unit, Pellegrin Hospital, F-33000, Bordeaux, France
| | - Fatima M'Zali
- UMR 5234 CNRS, Bordeaux University, F-33000, Bordeaux, France
| | - Agnès Lasheras
- Univ. Bordeaux, CHU Bordeaux, Hygiène hospitalière, F-33000, Bordeaux, France
| | - Jean-Ralph Zahar
- Unité INSERM - IAME UMR 1137, Université Paris-13, Bobigny, France
| | - Anne-Marie Rogues
- Univ. Bordeaux, CHU Bordeaux, Hygiène hospitalière, F-33000, Bordeaux, France.,Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, team pharmacoepidemiology, UMR 1219, F-33000, Bordeaux, France
| | - Didier Gruson
- CHU Bordeaux, Medical Intensive Care Unit, Pellegrin Hospital, F-33000, Bordeaux, France
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Impact of single-room contact precautions on hospital-acquisition and transmission of multidrug-resistant Escherichia coli: a prospective multicentre cohort study in haematological and oncological wards. Clin Microbiol Infect 2019; 25:1013-1020. [PMID: 30641228 DOI: 10.1016/j.cmi.2018.12.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/15/2018] [Accepted: 12/23/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Colonization and infection with third-generation cephalosporin-resistant Escherichia coli (3GCR-EC) are frequent in haematological and oncological patients. In this high-risk setting, German guidelines recommend single-room contact precautions (SCP) for patients with 3GCR-EC that are non-susceptible to fluoroquinolones (F3GCR-EC). However, this recommendation is controversial, as evidence is limited. METHODS We performed a prospective, multicentre cohort study at four haematology and oncology departments assessing the impact of SCP on hospital-acquired colonization or bloodstream infection (BSI) with F3GCR-EC. Two sites performed SCP for F3GCR-EC patients including single rooms, gloves and gowns (SCP sites), and two did not (NCP sites). Active screening for 3GCR-EC was performed and isolates were characterized with molecular typing methods including whole genome sequencing and core genome multiple locus sequence typing to assess patient-to-patient transmission. Potential confounders were assessed by competing-risk regression analysis. RESULTS Within 12 months, 1386 patients at NCP sites and 1582 patients at SCP sites were included. Hospital-acquisition of F3GCR-EC was observed in 22/1386 (1.59%) and 16/1582 (1.01%) patients, respectively (p 0.191). There were 3/1386 (0.22%) patients with BSI caused by F3GCR-EC at NCP sites and 4/1582 (0.25%) at SCP sites (p 1.000). Patient-to-patient transmission occurred in three cases at NCP and SCP sites each (p 1.000). The number of patients needed to screen in order to prevent one patient-to-patient transmission of F3GCR-EC was determined to be 3729. CONCLUSIONS Use of SCP had no significant impact on hospital-acquisition or patient-to-patient transmission of F3GCR-EC in this high-risk setting.
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Occurrence of risk factors and antimicrobial resistance due to genes encoding extended–spectrum β-lactamase (ESBL) – and/or AmpC β-lactamase–producing Escherichia coli isolated from the hospitalised patients. Biologia (Bratisl) 2018. [DOI: 10.2478/s11756-018-00167-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pulsed-Field Gel Electrophoresis Used for Typing of Extended-Spectrum-β-Lactamases- Producing Escherichia coli Isolated from Infant ҆S Respiratory and Digestive System. MACEDONIAN VETERINARY REVIEW 2018. [DOI: 10.2478/macvetrev-2018-0016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Abstract
Escherichia coli infections are becoming increasingly difficult to treat because of emerging antimicrobial resistance, mostly to expanded-spectrum cephalosporins, due to the production of extended-spectrum β-lactamases (ESBLs).Despite extensive studies of ESBL- producing E.coli in adult patients, there is a lack of information about the epidemiology and spread of ESBL organisms in pediatric population. The aim of this study was to examine the gastrointestinal tract as an endogenous reservoir for the respiratory tract colonization with ESBL- E. coli in children, hospitalized because of the severity of the respiratory illness. The study group consists of 40 children with ESBL-producing E. coli strains isolated from the sputum and from the rectal samples. A control group of 15 E. coli isolated from rectal swabs of healthy children were included in the analysis. The comparison of the strains was done by using antimicrobial susceptibility patterns of the stains, and pulsed field gel electrophoresis was performed for molecular typing, using XbaI digestion. 90% of the compared pairs of strains in the study group were with identical antimicrobial susceptibility patterns and indistinguishable in 79.2% by the obtained PFGE – profiles.33.3% (5/15) of confirmed E. coli strains from the control group were found to be ESBL – producers. Resulting band profiles of all isolates demonstrated presence of 12 pulsotypes, with 100% similarity within the pulsotypes. Although, some isolates obtained from different patients were genetically indistinguishable, these strains were not hospital acquired, as none of the patients satisfied the criteria for hospital acquired pneumonia, and there was a lack of an obvious transmission chain. All ESBL –E. coli isolated from sputum in clinical cases were obtained from patients under the age of one. According to the resistance profile of the compared pairs and the PFGE comparison of all isolates, it can be concluded that the gastrointestinal tract is the main reservoir of ESBL-E. coli. Small age in infants is a risk factor for translocation of bacteria, enabling the colonization of the respiratory tract.
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Boehmer T, Vogler AJ, Thomas A, Sauer S, Hergenroether M, Straubinger RK, Birdsell D, Keim P, Sahl JW, Williamson CHD, Riehm JM. Phenotypic characterization and whole genome analysis of extended-spectrum beta-lactamase-producing bacteria isolated from dogs in Germany. PLoS One 2018; 13:e0206252. [PMID: 30365516 PMCID: PMC6203360 DOI: 10.1371/journal.pone.0206252] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/09/2018] [Indexed: 12/30/2022] Open
Abstract
Asymptomatic colonization with extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae has been described for humans, various mammal species, and birds. Here, antimicrobial resistant bacteria were recovered from dog feces originating in Germany, Kosovo, Afghanistan, Croatia, and Ukraine, with a subset of mostly E. coli isolates obtained from a longitudinal collection over twelve months. In vitro antimicrobial resistance testing revealed various patterns of resistance against single or all investigated beta-lactam antibiotics, with none of the 101 isolates resistant against two tested carbapenem antibiotics. Whole genome sequence analysis revealed bacteria species-specific patterns for 23 antimicrobial resistance coding DNA sequences (CDS) that were unapparent from the in vitro analysis alone. Phylogenetic analysis of single nucleotide polymorphisms (SNP) revealed clonal bacterial isolates originating from different dogs, suggesting transmission between dogs in the same community. However, individual resistant E. coli clones were not detected over a period longer than seven days. Multi locus sequence typing (MLST) of 85 E. coli isolates revealed 31 different sequence types (ST) with an accumulation of ST744 (n = 9), ST10 (n = 8), and ST648 (n = 6), although the world-wide hospital-associated CTX-M beta-lactamase producing ST131 was not detected. Neither the antimicrobial resistance CDSs patterns nor the phylogenetic analysis revealed an epidemiological correlation among the longitudinal isolates collected from a period longer than seven days. No genetic linkage could be associated with the geographic origin of isolates. In conclusion, healthy dogs frequently carry ESBL-producing bacteria, independent to prior treatment, which may be transmitted between individual dogs of the same community. Otherwise, these antimicrobial resistant bacteria share few commonalities, making their presence eerily unpredictable.
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Affiliation(s)
- Tim Boehmer
- Central Institute of the Bundeswehr Medical Service Munich, Garching, Bavaria, Germany
| | - Amy J. Vogler
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Astrid Thomas
- Institute of Infectious Diseases and Zoonoses, Department of Veterinary Sciences, Faculty of Veterinary Medicine, Ludwig-Maximilian University, Munich, Germany
| | | | - Markus Hergenroether
- Central Institute of the Bundeswehr Medical Service Munich, Garching, Bavaria, Germany
| | - Reinhard K. Straubinger
- Institute of Infectious Diseases and Zoonoses, Department of Veterinary Sciences, Faculty of Veterinary Medicine, Ludwig-Maximilian University, Munich, Germany
| | - Dawn Birdsell
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Paul Keim
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Jason W. Sahl
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Charles H. D. Williamson
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, United States of America
| | - Julia M. Riehm
- Central Institute of the Bundeswehr Medical Service Munich, Garching, Bavaria, Germany
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Bharadwaj R, Robinson ML, Balasubramanian U, Kulkarni V, Kagal A, Raichur P, Khadse S, Kadam D, Valvi C, Kinikar A, Kanade S, Suryavanshi N, Marbaniang I, Nelson G, Johnson J, Zenilman J, Sachs J, Gupta A, Mave V. Drug-resistant Enterobacteriaceae colonization is associated with healthcare utilization and antimicrobial use among inpatients in Pune, India. BMC Infect Dis 2018; 18:504. [PMID: 30286741 PMCID: PMC6172743 DOI: 10.1186/s12879-018-3390-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 09/17/2018] [Indexed: 11/18/2022] Open
Abstract
Background Healthcare exposure may increase drug-resistant Enterobacteriaceae colonization risk. Nascent antimicrobial stewardship efforts in low- and middle-income countries require setting-specific data. We aimed to evaluate risk factors for inpatient drug resistant Enterobacteriaceae colonization in a resource-limited setting in India. Methods Patients age ≥ 6 months admitted with ≥24 h of fever to a tertiary hospital in Pune, India were enrolled in a prospective cohort. Perirectal swabs, collected on admission and hospitalization day 3 or 4, were cultured in vancomycin- and ceftriaxone-impregnated media to assess for ceftriaxone-resistant Enterobacteriaceae (CTRE) and carbapenem-resistant Enterobacteriaceae (CPRE). Multivariable analyses assessed risk factors for drug-resistant Enterobacteriaceae colonization among participants without admission colonization. Results Admission perirectal swabs were collected on 897 participants; 87 (10%) had CTRE and 14 (1.6%) had CPRE colonization. Admission CTRE colonization was associated with recent healthcare contact (p < 0.01). Follow-up samples were collected from 620 participants, 67 (11%) had CTRE and 21 (3.4%) had CPRE colonization. Among 561 participants without enrollment CTRE colonization, 49 (9%) participants were colonized with CTRE at follow-up. Detection of CTRE colonization among participants not colonized with CTRE at admission was independently associated with empiric third generation cephalosporin treatment (adjusted odds ratio [OR] 2.9, 95% CI 1.5–5.8). Follow-up transition to CPRE colonization detection was associated with ICU admission (OR 3.0, 95% CI 1.0–8.5). Conclusions Patients who receive empiric third generation cephalosporins and are admitted to the ICU rapidly develop detectable CTRE and CPRE colonization. Improved antimicrobial stewardship and infection control measures are urgently needed upon hospital admission. Electronic supplementary material The online version of this article (10.1186/s12879-018-3390-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Renu Bharadwaj
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India. .,Byramjee-Jeejeebhoy Government Medical College, Pune, Maharashtra, India.
| | | | - Usha Balasubramanian
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India
| | - Vandana Kulkarni
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India
| | - Anju Kagal
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Byramjee-Jeejeebhoy Government Medical College, Pune, Maharashtra, India
| | - Priyanka Raichur
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India
| | - Sandhya Khadse
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Byramjee-Jeejeebhoy Government Medical College, Pune, Maharashtra, India
| | - Dileep Kadam
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Byramjee-Jeejeebhoy Government Medical College, Pune, Maharashtra, India
| | - Chhaya Valvi
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Byramjee-Jeejeebhoy Government Medical College, Pune, Maharashtra, India
| | - Aarti Kinikar
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Byramjee-Jeejeebhoy Government Medical College, Pune, Maharashtra, India
| | - Savita Kanade
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India
| | - Nishi Suryavanshi
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India
| | - Ivan Marbaniang
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India
| | - George Nelson
- Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Julia Johnson
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Jonathan Sachs
- Phoenix Children's Hospital / Maricopa Medical Center, Phoenix, AZ, USA
| | - Amita Gupta
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Vidya Mave
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, Maharashtra, India.,Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Gysin DV, Cookson B, Saenz H, Dettenkofer M, Widmer AF. Variability in contact precautions to control the nosocomial spread of multi-drug resistant organisms in the endemic setting: a multinational cross-sectional survey. Antimicrob Resist Infect Control 2018; 7:81. [PMID: 30002821 PMCID: PMC6038251 DOI: 10.1186/s13756-018-0366-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 06/04/2018] [Indexed: 12/19/2022] Open
Abstract
Background Definitions and practices regarding use of contact precautions and isolation to prevent the spread of gram-positive and gram-negative multidrug-resistant organisms (MDRO) are not uniform. Methods We conducted an on-site survey during the European Congress on Clinical Microbiology and Infectious Diseases 2014 to assess specific details on contact precaution and implementation barriers. Results Attendants from 32 European (EU) and 24 non-EU countries participated (n = 213). In EU-respondents adherence to contact precautions and isolation was high for Methicillin-resistant Staphylococcus aureus (MRSA), carbapenem-resistant Enterobacteriaceae, and MDR A. baumannii (84.7, 85.7, and 80%, respectively) whereas only 68% of EU-respondents considered any contact precaution measures for extended-spectrum-beta-lactamase (ESBL) producing non-E. coli. Between 30 and 45% of all EU and non-EU respondents did not require health-care workers (HCW) to wear gowns and gloves at all times when entering the room of a patient in contact isolation. Between 10 and 20% of respondents did not consider any rooming specifications or isolation for gram-positive MDRO and up to 30% of respondents abstain from such interventions in gram-negative MDRO, especially non-E. coli ESBL. Understaffing and lack of sufficient isolation rooms were the most commonly encountered barriers amongst EU and non-EU respondents. Conclusion The effectiveness of contact precautions and isolation is difficult to assess due to great variation in components of the specific measures and mixed levels of implementation. The lack of uniform positive effects of contact isolation to prevent transmission may be explained by the variability of interpretation of this term. Indications for contact isolation require a global definition and further sound studies. Electronic supplementary material The online version of this article (10.1186/s13756-018-0366-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Danielle Vuichard Gysin
- 1Department of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, 4051 Basel, Switzerland.,Present address: Department of Internal Medicine, Cantonal Hospital Thurgau, Muensterlingen, Switzerland
| | - Barry Cookson
- 2Division of Infection and Immunity, University College London, London, UK
| | - Henri Saenz
- 3ESCMID Executive Office, Basel, Switzerland
| | - Markus Dettenkofer
- Institute of Hospital Hygiene and Infection Prevention, Gesundheitsverbund Landkreis Konstanz, Radolfzell, Germany
| | - Andreas F Widmer
- 1Department of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, 4051 Basel, Switzerland
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Zahar JR, Mootien JY, Pilmis B. Entérobactéries productrices de carbapénémases en médecine intensive : comment maîtriser le risque ? MEDECINE INTENSIVE REANIMATION 2018. [DOI: 10.3166/rea-2018-0057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
La diffusion globale des entérobactéries productrices de carbapénémases principalement au niveau de certaines zones géographiques, dont le pourtour méditerranéen, est une situation préoccupante. Elle doit nous inciter à maintenir notre niveau de vigilance. Trois principaux mécanismes de résistance s’exprimant à des degrés variables sont décrits. Plusieurs critères tels que l’identification de la population à risque, la qualité du diagnostic microbiologique, la gestion du risque ainsi que la diffusion intrahospitalière doivent être maîtrisés. Une politique d’amélioration de l’hygiène des mains, le respect des précautions complémentaires d’hygiène ainsi que la maîtrise de la consommation des antibiotiques sont plus que nécessaires.
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Torres E, López-Cerero L, Morales I, Navarro M, Rodríguez-Baño J, Pascual A. Prevalence and transmission dynamics of Escherichia coli ST131 among contacts of infected community and hospitalized patients. Clin Microbiol Infect 2018; 24:618-623. [DOI: 10.1016/j.cmi.2017.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 07/18/2017] [Accepted: 09/12/2017] [Indexed: 11/24/2022]
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Lemmen SW, Lewalter K. Antibiotic stewardship and horizontal infection control are more effective than screening, isolation and eradication. Infection 2018; 46:581-590. [PMID: 29796739 PMCID: PMC6182449 DOI: 10.1007/s15010-018-1137-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/29/2018] [Indexed: 12/26/2022]
Abstract
Purpose The global rise of multidrug resistant organisms (MDROs) is of major concern since infections by these pathogens are difficult, and in some cases, even impossible to treat. This review will discuss the effectiveness of a pathogen-independent alternative approach consisting of the implementation of antibiotic stewardship (ABS) programs, improvement of hand hygiene compliance, and daily antiseptic body washings instead of “screening, isolation and eradication” as recommended by many infection control guidelines today. Methods A review of the literature. Results The classical approach composed of screening, isolation and eradication has many limitations, including lack of standardization of the screening methods, risk of medical errors for patients in isolation and failure to eradicate resistant bacteria. Notably, concrete evidence that this current infection control approach actually prevents transmission is still lacking. We found that a novel approach with the training of infectious diseases specialists can reduce the usage of antimicrobials, thereby significantly decreasing the emergence of new MDROs. Moreover, increased hand hygiene compliance not only reduces transmission of MDROs, but also that of sensitive organisms causing the majority of nosocomial infections. Further, instruments, such as continuing education, bed-side observation, and the use of new tools, e.g. electronic wearables and Wi-Fi-equipped dispensers, are all options that can also improve the current low hand hygiene compliance levels. In addition, daily antiseptic body washes were observed to reduce the transmission of MDROs, especially those deriving from the body surface-like MRSA and VRE in specific settings. Finally, antiseptic body washes were seen to have similar effects on reducing transmission rates as screening and isolation measures. Conclusions In summary, this review describes a novel evidence-based approach to counteract the growing medical challenge of increasing numbers of MDROs.
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Affiliation(s)
- S W Lemmen
- Department of Infection Control and Infectious Diseases, Universtiy Hospital RWTH Aachen, 52074, Aachen, Germany.
| | - K Lewalter
- Department of Infection Control and Infectious Diseases, Universtiy Hospital RWTH Aachen, 52074, Aachen, Germany
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Cessation of screening for intestinal carriage of extended-spectrum β-lactamase-producing Enterobacteriaceae in a low-endemicity intensive care unit with universal contact precautions. Clin Microbiol Infect 2018; 24:429.e7-429.e12. [DOI: 10.1016/j.cmi.2017.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/29/2017] [Accepted: 08/08/2017] [Indexed: 11/24/2022]
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DalBen MF. Transmission-Based Precautions for Multidrug-Resistant Organisms: What to Prioritize When Resources Are Limited. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2018. [DOI: 10.1007/s40506-018-0143-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Stadler T, Meinel D, Aguilar-Bultet L, Huisman JS, Schindler R, Egli A, Seth-Smith HMB, Eichenberger L, Brodmann P, Hübner P, Bagutti C, Tschudin-Sutter S. Transmission of ESBL-producing Enterobacteriaceae and their mobile genetic elements-identification of sources by whole genome sequencing: study protocol for an observational study in Switzerland. BMJ Open 2018; 8:e021823. [PMID: 29455172 PMCID: PMC5855333 DOI: 10.1136/bmjopen-2018-021823] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Extended-spectrum beta-lactamases (ESBL)-producing Enterobacteriaceae were first described in relation with hospital-acquired infections. In the 2000s, the epidemiology of ESBL-producing organisms changed as especially ESBL-producing Escherichia coli was increasingly described as an important cause of community-acquired infections, supporting the hypothesis that in more recent years ESBL-producing Enterobacteriaceae have probably been imported into hospitals rather than vice versa. Transmission of ESBL-producing Enterobacteriaceae is complicated by ESBL genes being encoded on self-transmissible plasmids, which can be exchanged among the same and different bacterial species. The aim of this research project is to quantify hospital-wide transmission of ESBL-producing Enterobacteriaceae on both the level of bacterial species and the mobile genetic elements and to determine if hospital-acquired infections caused by ESBL producers are related to strains and mobile genetic elements predominantly circulating in the community or in the healthcare setting. This distinction is critical in prevention since the former emphasises the urgent need to establish or reinforce antibiotic stewardship programmes, and the latter would call for more rigorous infection control. METHODS AND ANALYSIS This protocol presents an observational study that will be performed at the University Hospital Basel and in the city of Basel, Switzerland. ESBL-producing Enterobacteriaceae will be collected from any specimens obtained by routine clinical practice or by active screening in both inpatient and outpatient settings, as well as from wastewater samples and foodstuffs, both collected monthly over a 12-month period for analyses by whole genome sequencing. Bacterial chromosomal, plasmid and ESBL-gene sequences will be compared within the cohort to determine genetic relatedness and migration between humans and their environment. ETHICS AND DISSEMINATION This study has been approved by the local ethics committee (Ethikkommission Nordwest-und Zentralschweiz) as a quality control project (Project-ID 2017-00100). The results of this study will be published in peer-reviewed medical journals, communicated to participants, the general public and all relevant stakeholders.
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Affiliation(s)
- Tanja Stadler
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule (ETH) Zürich, Basel, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Dominik Meinel
- Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Lisandra Aguilar-Bultet
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University Basel, Basel, Switzerland
| | - Jana S Huisman
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
- Department of Environmental Systems Science, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich, Switzerland
| | - Ruth Schindler
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University Basel, Basel, Switzerland
| | - Adrian Egli
- Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Helena M B Seth-Smith
- Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Peter Brodmann
- Biosafety Laboratory, State Laboratory Basel-City, Basel, Switzerland
| | - Philipp Hübner
- Biosafety Laboratory, State Laboratory Basel-City, Basel, Switzerland
| | - Claudia Bagutti
- Biosafety Laboratory, State Laboratory Basel-City, Basel, Switzerland
| | - Sarah Tschudin-Sutter
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, University Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
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45
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Tschudin-Sutter S, Frei R, Schwahn F, Tomic M, Conzelmann M, Stranden A, Widmer AF. Prospective Validation of Cessation of Contact Precautions for Extended-Spectrum β-Lactamase-Producing Escherichia coli(1). Emerg Infect Dis 2018; 22:1094-7. [PMID: 27191171 PMCID: PMC4880108 DOI: 10.3201/eid2206.150554] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
After contact precautions were discontinued, we determined nosocomial transmission of extended-spectrum β-lactamase (ESBL)–producing Escherichia coli by screening hospital patients who shared rooms with ESBL-producing E. coli–infected or –colonized patients. Transmission rates were 2.6% and 8.8% at an acute-care and a geriatric/rehabilitation hospital, respectively. Prolonged contact was associated with increased transmission.
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Sahni RD, Mathai D, Sudarsanam TD, Balaji V, Brahamadathan KN, Jesudasan MV, Lalitha MK. Extended-Spectrum Beta-lactamase Producers: Detection for the Diagnostic Laboratory. J Glob Infect Dis 2018; 10:140-146. [PMID: 30166813 PMCID: PMC6100337 DOI: 10.4103/jgid.jgid_49_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background and Objectives Discovered in 1983, Extended spectrum beta-lactamase (ESBL) producers are still the leading cause of infections in India. Its prompt detection is crucial to the clinical management. The Clinical Laboratory Standards Institute (CLSI) recommends phenotypic screening and confirmatory tests to identify the ESBL producer making it cost and time consuming for the diagnostic laboratory. We compare here the screening and confirmatory tests offering a solution to the CLSI recommendation. Methods Nosocomial isolates E. coli (71) and K. pneumoniae (25) resistant to cefotaxime and ceftazidime were included. CLSI recommended testing with cefotaxime, ceftazidime and in combination with clavulanic acid by disk diffusion and agar dilution methods were performed. E-test was performed on discrepant results. To determine the genetic relatedness of the organisms, 22 Medical and Surgical ICU isolates were genotyped by PFGE. Dendrogram was constructed using dice co-efficient, UPGMA method with diversity database software. Results and Conclusions Phenotypic screening disk diffusion test versus the confirmatory agar dilution MIC tests with cefotaxime and ceftazidime correlated well with the final ESBL status (kappa 0.852 and 0.905 P < 0.001) and (kappa 0.911 and 0.822 P < 0.001). The tests show 99-100% sensitivity, 75-83.3% specificity, and positive likelihood ratios between 4.0 -5.9. E-test confirmed 6 of 12 discordant results as ESBLs. Of the 96 nosocomial isolates screened as possible ESBL producers by the Kirby-Bauer disk diffusion test, 86.5% were confirmed ESBL producers. Genotyping on the ICU isolates by PFGE revealed a genetically diverse population suggesting no transmission of phenotypically similar ESBL strains within the ICUs.
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Affiliation(s)
- Rani Diana Sahni
- Department of Clinical Microbiology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Dilip Mathai
- Department of Medicine, Christian Medical College, Vellore, Tamil Nadu, India
| | | | - V Balaji
- Department of Clinical Microbiology, Christian Medical College, Vellore, Tamil Nadu, India
| | - K N Brahamadathan
- Department of Clinical Microbiology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Mary V Jesudasan
- Department of Clinical Microbiology, Christian Medical College, Vellore, Tamil Nadu, India
| | - M K Lalitha
- Department of Clinical Microbiology, Christian Medical College, Vellore, Tamil Nadu, India
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47
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Dettenkofer M, Frank U, Just HM, Lemmen S, Scherrer M. Isolierungsmaßnahmen. PRAKTISCHE KRANKENHAUSHYGIENE UND UMWELTSCHUTZ 2018. [PMCID: PMC7123004 DOI: 10.1007/978-3-642-40600-3_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Die Kenntnis des infektionsspezifischen Übertragungsweges einer Erkrankung ist die entscheidende Voraussetzung zur Festlegung sinnvoller, d. h. effektiver Präventionsmaßnahmen, zu denen auch heute noch die räumliche Isolierung von Patienten gehört. Die in der Vergangenheit empfohlenen pauschalen Maßnahmen, die weder den Übertragungsweg noch die Virulenz eines Infektionserregers angemessen berücksichtigten, führten oftmals zu erkennbarer Überisolierung, mit der Folge, dass in der täglichen Praxis notwendige Isolierungsmaßnahmen eher nachlässig gehandhabt wurden. Die Konsequenzen waren vermeidbare Kontaktinfektionen in Kliniken. Andererseits birgt die Unterbringung in einem Isolierzimmer die Gefahr einer schlechteren medizinischen wie pflegerischen Versorgung und damit einer Gefährdung des Patienten. Erreger- und maßnahmenbezogene Isolierkriterien mit disziplinierter Befolgung erforderlicher Verhaltensregeln seitens aller Beschäftigten, der isolierten Patienten und ihrer Besucher sind die Voraussetzung einer erfolgreichen Vermeidung von Infektionsübertragungen. Die Vermeidung unnötiger Isolierungsmaßnahmen spart erhebliche Kosten, reduziert die Belastung von Ärzten wie Pflegekräften und damit die Gefahr der Noncompliance bei essenziellen Präventionsmaßnahmen wie Händedesinfektion und andere Maßnahmen der Basishygiene.
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Affiliation(s)
- Markus Dettenkofer
- Gesundheitsverbund Landkreis Konstanz, Institut für Krankenhaushygiene & Infektionsprävention, Radolfzell, Germany
| | - Uwe Frank
- Sektion Krankenhaus- und Umwelthygiene, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | - Sebastian Lemmen
- Zentralbereich für Krankenhaushygiene, Universitätsklinikum Aachen, Aachen, Germany
| | - Martin Scherrer
- Stabsstelle Techn. Krankenhaushygiene, Universitätsklinikum Heidelberg, Heidelberg, Germany
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48
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Quantifying Hospital-Acquired Carriage of Extended-Spectrum Beta-Lactamase-Producing Enterobacteriaceae Among Patients in Dutch Hospitals. Infect Control Hosp Epidemiol 2017; 39:32-39. [DOI: 10.1017/ice.2017.241] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUNDExtended-spectrum β-lactamase–producing Enterobacteriaceae (ESBL-E) are emerging worldwide. Contact precautions are recommended for known ESBL-E carriers to control the spread of ESBL-E within hospitals.OBJECTIVEThis study quantified the acquisition of ESBL-E rectal carriage among patients in Dutch hospitals, given the application of contact precautions.METHODSData were used from 2 cluster-randomized studies on isolation strategies for ESBL-E: (1) the SoM study, performed in 14 Dutch hospitals from 2011 through 2014 and (2) the R-GNOSIS study, for which data were limited to those collected in a Dutch hospital in 2014. Perianal cultures were obtained, either during ward-based prevalence surveys (SoM), or at admission and twice weekly thereafter (R-GNOSIS). In both studies, contact precautions were applied to all known ESBL-E carriers. Estimates for acquisition of ESBL-E were based on the results of admission and discharge cultures from patients hospitalized for more than 2 days (both studies) and a Markov chain Monte Carlo (MCMC) model, applied to all patients hospitalized (R-GNOSIS).RESULTSThe absolute risk of acquisition of ESBL-E rectal carriage ranged from 2.4% to 2.9% with an ESBL-E acquisition rate of 2.8 to 3.8 acquisitions per 1,000 patient days. In addition, 28% of acquisitions were attributable to patient-dependent transmission, and the per-admission reproduction number was 0.06.CONCLUSIONSThe low ESBL-E acquisition rate in this study demonstrates that it is possible to control the nosocomial transmission of ESBL in a low-endemic, non-ICU setting whereEscherichia coliis the most prevalent ESBL-E and standard and contact precautions are applied for known ESBL-E carriers.TRIAL REGISTRATIONNederlands Trialregister, NTR2799,http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=2799; ISRCTN Registry, ISRCTN57648070,http://www.isrctn.com/ISRCTN57648070Infect Control Hosp Epidemiol2018;39:32–39
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49
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Pilmis B, Cattoir V, Lecointe D, Limelette A, Grall I, Mizrahi A, Marcade G, Poilane I, Guillard T, Bourgeois Nicolaos N, Zahar JR, Le Monnier A. Carriage of ESBL-producing Enterobacteriaceae in French hospitals: the PORTABLSE study. J Hosp Infect 2017; 98:247-252. [PMID: 29222035 DOI: 10.1016/j.jhin.2017.11.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/29/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Currently, contact precautions are recommended for patients colonized or infected with extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE). Recent studies have challenged this strategy. This study aimed to assess the rate of ESBL-PE faecal carriage among hospitalized patients according to type of hospital ward, and to identify risk factors associated with carriage. METHODS A point prevalence study was conducted in five different types of hospital ward [medical, surgical, intensive care unit (ICU), after care and rehabilitation, and geriatric] in eight French hospitals. All patients included in the study provided a fresh stool sample. RESULTS In total, 554 patients were included in the study, with a median age of 73 years (range 60-82 years). The overall faecal carriage rate of ESBL-PE was 17.7%. The most frequently encountered species among ESBL-PE was Escherichia coli (71.4%), followed by Klebsiella pneumoniae (14.3%). Risk factors associated with ESBL-PE faecal carriage on univariate analysis were: living in the Paris region (P<0.01) and hospitalization on a geriatric ward (P<0.01). Interestingly, the cumulative duration of hospital stay before screening was not associated with a significantly higher prevalence of ESBL-PE carriage, regardless of ward type. The ESBL-PE colonization rate was much higher for patients hospitalized on geriatric wards (28.1%) and ICUs (21.7%) compared with those for patients hospitalized on surgical wards (14.8%), medical wards (12.8%) or aftercare and rehabilitation (11.2%). CONCLUSION The overall prevalence of ESBL-PE faecal carriage was 17.7%, with only 21% of patients identified previously as carriers. The delay between admission and screening was not associated with an increase in ESBL-PE faecal carriage.
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Affiliation(s)
- B Pilmis
- Equipe Mobile de Microbiologie clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - V Cattoir
- Laboratoire de Microbiologie, CHU de Caen, Caen, France
| | - D Lecointe
- Unité Fonctionnelle d'Hygiène Hospitalière et de Lutte contre les Infections Nosocomiales, Centre Hospitalier Sud Francilien, Corbeil-Essonnes, France
| | - A Limelette
- Laboratoire de Bactériologie-Virologie-Hygiène, CHU Reims, Hôpital Robert Debré, UFR de Médecine, EA4687, Université de Reims Champagne-Ardenne Reims, France
| | - I Grall
- Clinique de Champigny, Champigny sur Marne, France
| | - A Mizrahi
- Laboratoire de Microbiologie clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France; EA4043 Unité Bactéries pathogènes et Santé (UBaPS), Université Paris-Sud, Paris Saclay, Chatenay-Malabry, France
| | - G Marcade
- Laboratoire de Microbiologie, Hôpital Louis Mourier, Colombes, France
| | - I Poilane
- Laboratoire de Microbiologie, Hôpital Jean Verdier, Bondy, France
| | - T Guillard
- Laboratoire de Bactériologie-Virologie-Hygiène, CHU Reims, Hôpital Robert Debré, UFR de Médecine, EA4687, Université de Reims Champagne-Ardenne Reims, France
| | - N Bourgeois Nicolaos
- EA4043 Unité Bactéries pathogènes et Santé (UBaPS), Université Paris-Sud, Paris Saclay, Chatenay-Malabry, France; Service de Bactériologie et hygiène, Hôpital Antoine Béclère, Clamart, France
| | - J-R Zahar
- IAME, UMR 1137, Université Paris 13, Sorbonne Paris Cité, Département de Microbiologie Clinique, Unité de Contrôle et de Prévention du risque Infectieux, Groupe Hospitalier Paris Seine Saint-Denis, AP-HP, CHU Avicenne, Bobigny, France.
| | - A Le Monnier
- Laboratoire de Microbiologie clinique, Groupe Hospitalier Paris Saint-Joseph, Paris, France; EA4043 Unité Bactéries pathogènes et Santé (UBaPS), Université Paris-Sud, Paris Saclay, Chatenay-Malabry, France
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Alevizakos M, Gaitanidis A, Andreatos N, Arunachalam K, Flokas ME, Mylonakis E. Bloodstream infections due to extended-spectrum β-lactamase-producing Enterobacteriaceae among patients with malignancy: a systematic review and meta-analysis. Int J Antimicrob Agents 2017; 50:657-663. [PMID: 28705665 DOI: 10.1016/j.ijantimicag.2017.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 06/11/2017] [Accepted: 07/01/2017] [Indexed: 10/19/2022]
Abstract
Extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-PE) are an increasing cause of resistant infections among patients with malignancy. This study sought to estimate the prevalence of bloodstream infections (BSIs) caused by ESBL-PE in this population and to examine regional and temporal differences. The PubMed and EMBASE databases (to 30 April 2016) were searched to identify studies reporting ESBL-PE BSI rates among patients with malignancies. Of 593 non-duplicate reports, 22 studies providing data on 5650 BSI cases satisfied the inclusion criteria. Among all BSIs the pooled prevalence of ESBL-PE was 11% (95% CI 8-15%) and among Gram-negative BSIs it was 21% (95% CI 16-27%). Among patients with haematological malignancies, the pooled ESBL-PE prevalence was 11% (95% CI 8-15%), whereas no studies providing specific data on patients with solid tumours were identified. Stratifying per geographic region, the pooled prevalence was 7% each in Europe (95% CI 5-11%), the Eastern Mediterranean region (95% CI 4-11%) and South America (95% CI 2-14%), 10% in the Western Pacific region (95% CI 4-19%) and 30% in Southeast Asia (95% CI 18-44%). Importantly, there was a 7.1% annual increase in the ESBL-PE incidence (P = 0.004). Overall, ca. 1 in 10 BSIs in patients with malignancy is caused by ESBL-PE and in some areas this rate can be as high as 1 in 3 cases. Additionally, the incidence of these resistant infections is rising. These findings should be considered when selecting empirical antimicrobial therapy and should prompt strict adherence to antimicrobial stewardship.
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Affiliation(s)
- Michail Alevizakos
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Apostolos Gaitanidis
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Nikolaos Andreatos
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Karuppiah Arunachalam
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Myrto Eleni Flokas
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
| | - Eleftherios Mylonakis
- Infectious Diseases Division, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA.
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