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Fanelli C, Pistidda L, Terragni P, Pasero D. Infection Prevention and Control Strategies According to the Type of Multidrug-Resistant Bacteria and Candida auris in Intensive Care Units: A Pragmatic Resume including Pathogens R 0 and a Cost-Effectiveness Analysis. Antibiotics (Basel) 2024; 13:789. [PMID: 39200090 PMCID: PMC11351734 DOI: 10.3390/antibiotics13080789] [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: 07/02/2024] [Revised: 07/29/2024] [Accepted: 08/02/2024] [Indexed: 09/01/2024] Open
Abstract
Multidrug-resistant organism (MDRO) outbreaks have been steadily increasing in intensive care units (ICUs). Still, healthcare institutions and workers (HCWs) have not reached unanimity on how and when to implement infection prevention and control (IPC) strategies. We aimed to provide a pragmatic physician practice-oriented resume of strategies towards different MDRO outbreaks in ICUs. We performed a narrative review on IPC in ICUs, investigating patient-to-staff ratios; education, isolation, decolonization, screening, and hygiene practices; outbreak reporting; cost-effectiveness; reproduction numbers (R0); and future perspectives. The most effective IPC strategy remains unknown. Most studies focus on a specific pathogen or disease, making the clinician lose sight of the big picture. IPC strategies have proven their cost-effectiveness regardless of typology, country, and pathogen. A standardized, universal, pragmatic protocol for HCW education should be elaborated. Likewise, the elaboration of a rapid outbreak recognition tool (i.e., an easy-to-use mathematical model) would improve early diagnosis and prevent spreading. Further studies are needed to express views in favor or against MDRO decolonization. New promising strategies are emerging and need to be tested in the field. The lack of IPC strategy application has made and still makes ICUs major MDRO reservoirs in the community. In a not-too-distant future, genetic engineering and phage therapies could represent a plot twist in MDRO IPC strategies.
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Affiliation(s)
- Chiara Fanelli
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy (L.P.); (P.T.)
| | - Laura Pistidda
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy (L.P.); (P.T.)
| | - Pierpaolo Terragni
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy (L.P.); (P.T.)
- Head of Intensive Care Unit, University Hospital of Sassari, 07100 Sassari, Italy
| | - Daniela Pasero
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy (L.P.); (P.T.)
- Head of Intensive Care Unit, Civil Hospital of Alghero, 07041 Alghero, Italy
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2
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McHugh MP, Pettigrew KA, Taori S, Evans TJ, Leanord A, Gillespie SH, Templeton KE, Holden MTG. Consideration of within-patient diversity highlights transmission pathways and antimicrobial resistance gene variability in vancomycin-resistant Enterococcus faecium. J Antimicrob Chemother 2024; 79:656-668. [PMID: 38323373 PMCID: PMC11090465 DOI: 10.1093/jac/dkae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 01/02/2024] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND WGS is increasingly being applied to healthcare-associated vancomycin-resistant Enterococcus faecium (VREfm) outbreaks. Within-patient diversity could complicate transmission resolution if single colonies are sequenced from identified cases. OBJECTIVES Determine the impact of within-patient diversity on transmission resolution of VREfm. MATERIALS AND METHODS Fourteen colonies were collected from VREfm positive rectal screens, single colonies were collected from clinical samples and Illumina WGS was performed. Two isolates were selected for Oxford Nanopore sequencing and hybrid genome assembly to generate lineage-specific reference genomes. Mapping to closely related references was used to identify genetic variations and closely related genomes. A transmission network was inferred for the entire genome set using Phyloscanner. RESULTS AND DISCUSSION In total, 229 isolates from 11 patients were sequenced. Carriage of two or three sequence types was detected in 27% of patients. Presence of antimicrobial resistance genes and plasmids was variable within genomes from the same patient and sequence type. We identified two dominant sequence types (ST80 and ST1424), with two putative transmission clusters of two patients within ST80, and a single cluster of six patients within ST1424. We found transmission resolution was impaired using fewer than 14 colonies. CONCLUSIONS Patients can carry multiple sequence types of VREfm, and even within related lineages the presence of mobile genetic elements and antimicrobial resistance genes can vary. VREfm within-patient diversity could be considered in future to aid accurate resolution of transmission networks.
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Affiliation(s)
- Martin P McHugh
- School of Medicine, University of St Andrews, St Andrews, UK
- Medical Microbiology, Department of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - Surabhi Taori
- Medical Microbiology, Department of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Thomas J Evans
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Alistair Leanord
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
- Scottish Microbiology Reference Laboratories, Glasgow Royal Infirmary, Glasgow, UK
| | | | - Kate E Templeton
- Medical Microbiology, Department of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
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Saito N, Kitazawa J, Horiuchi H, Yamamoto T, Kimura M, Inoue F, Matsui M, Minakawa S, Itoga M, Tsuchiya J, Suzuki S, Hisatsune J, Gu Y, Sugai M, Kayaba H. Interhospital transmission of vancomycin-resistant Enterococcus faecium in Aomori, Japan. Antimicrob Resist Infect Control 2022; 11:99. [PMID: 35871001 PMCID: PMC9308179 DOI: 10.1186/s13756-022-01136-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 07/05/2022] [Indexed: 11/10/2022] Open
Abstract
Background Spread of vancomycin-resistant Enterococcus (VRE) is a global concern as a significant cause of healthcare-associated infections. A series of VRE faecium (VREf) outbreaks caused by clonal propagation due to interhospital transmission occurred in six general hospitals in Aomori prefecture, Japan. Methods The number of patients with VREf was obtained from thirty seven hospitals participating in the local network of Aomori prefecture. Thirteen hospitals performed active screening tests for VRE. Whole genome sequencing analysis was performed. Results The total number of cases with VREf amounted to 500 in fourteen hospitals in Aomori from Jan 2018 to April 2021. It took more than three years for the frequency of detection of VRE to return to pre-outbreak levels. The duration and size of outbreaks differed between hospitals according to the countermeasures available at each hospital. Whole genome sequencing analysis indicated vanA-type VREf ST1421 for most samples from six hospitals. Conclusions This was the first multi-jurisdictional outbreak of VREf sequence type 1421 in Japan. In addition to strict infection control measures, continuous monitoring of VRE detection in local medical regions and smooth and immediate communication among hospitals are required to prevent VREf outbreaks.
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Knudsen MJS, Rubin IMC, Gisselø K, Mollerup S, Petersen AM, Pinholt M, Westh H, Bartels MD. The use of core genome multilocus sequence typing to determine the duration of vancomycin-resistant Enterococcus faecium outbreaks. APMIS 2022; 130:323-329. [PMID: 35253272 DOI: 10.1111/apm.13216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/20/2022] [Indexed: 11/29/2022]
Abstract
The prevalence of vancomycin-resistant Enterococcus faecium has increased rapidly, and in Denmark, we are facing an endemic outbreak situation in hospitals. The aim of this study was to use whole-genome sequencing (WGS) and core genome multilocus sequencing typing (cgMLST) to determine the duration of VREfm outbreaks and thereby evaluate the effect of our infection control strategies. We included all VREfm isolates from six hospitals in the Capital Region of Denmark that were sequenced between 2012 and 2020. Ward data were collected from our laboratory information system. A ward outbreak was defined as two patient samples from the same ward within a period of 30 days belonging to the same cgMLST cluster. cgMLST complex types were determined using Ridom SeqSphere v7.2.3, where a maximum of 20 allelic differences between isolates defines a cluster. We included 1690 patient isolates between 2012 and 2020. Our collection consisted of 45 unique clusters and 227 ward outbreaks. The median duration of outbreaks was 20 days. We reported a median outbreak duration of VREfm outbreaks based on WGS data to be 20 days, and thus concluded that our infection control precautions are adequate.
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Affiliation(s)
| | - Ingrid Maria Cecilia Rubin
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark.,Department of Gastroenterology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Katrine Gisselø
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Sarah Mollerup
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Andreas Munk Petersen
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark.,Department of Gastroenterology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mette Pinholt
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Henrik Westh
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mette Damkjaer Bartels
- Department of Clinical Microbiology, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Niranjan R, Zafar S, Lochab B, Priyadarshini R. Synthesis and Characterization of Sulfur and Sulfur-Selenium Nanoparticles Loaded on Reduced Graphene Oxide and Their Antibacterial Activity against Gram-Positive Pathogens. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:191. [PMID: 35055210 PMCID: PMC8782023 DOI: 10.3390/nano12020191] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/26/2021] [Accepted: 12/29/2021] [Indexed: 11/24/2022]
Abstract
Resistance to antimicrobial agents in Gram-positive bacteria has become a major concern in the last decade. Recently, nanoparticles (NP) have emerged as a potential solution to antibiotic resistance. We synthesized three reduced graphene oxide (rGO) nanoparticles, namely rGO, rGO-S, and rGO-S/Se, and characterized them using X-ray diffraction (PXRD), Raman analysis, and thermogravimetric analysis. Transmission electron microscopy confirmed spherical shape nanometer size S and S/Se NPs on the rGO surface. Antibacterial properties of all three nanomaterials were probed against Gram-positive pathogens Staphylococcus aureus and Enterococcus faecalis, using turbidometeric and CFU assays. Among the synthesized nanomaterials, rGO-S/Se exhibited relatively strong antibacterial activity against both Gram-positive microorganism tested in a concentration dependent manner (growth inhibition >90% at 200 μg/mL). Atomic force microscopy of rGO-S/Se treated cells displayed morphological aberrations. Our studies also revealed that rGO composite NPs are able to deposit on the bacterial cell surface, resulting in membrane perturbation and oxidative stress. Taken together, our results suggest a possible three-pronged approach of bacterial cytotoxicity by these graphene-based materials.
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Affiliation(s)
- Rashmi Niranjan
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar 201314, India;
| | - Saad Zafar
- Materials Chemistry Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar 201314, India;
| | - Bimlesh Lochab
- Materials Chemistry Laboratory, Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar 201314, India;
| | - Richa Priyadarshini
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Gautam Buddha Nagar 201314, India;
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Elliott TM, Hare N, Hajkowicz K, Hurst T, Doidge M, Harris PN, Gordon LG. Evaluating the economic effects of genomic sequencing of pathogens to prioritise hospital patients competing for isolation beds. AUST HEALTH REV 2021; 45:59-65. [PMID: 33049199 DOI: 10.1071/ah20071] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/18/2020] [Indexed: 11/23/2022]
Abstract
Objective This study compared the costs and patient movements of a new hospital protocol to discontinue contact precautions for patients with non-multiresistant methicillin-resistant Staphylococcus aureus (nmMRSA), based on whole-genome sequencing (WGS) of pathogens with current practice. Methods A hybrid simulation model was constructed and analysed over a 12-month time horizon. Six multidrug-resistant organisms and influenza were modelled concurrently where infected patients competed for isolation beds. Model inputs included pathogen incidence, resources for WGS, staff and contact precautions, hospital processes, room allocations and their associated costs. Data were sourced from aggregated records of patient admissions during 2017-18, clinical records and published reports. Results The WGS protocol resulted in 389 patients isolated (44% of current practice), 5223 'isolation bed days' (56%) and 268 closed-bed days (88%). Over 1 year, the mean (±s.d.) total cost for the WGS protocol was A$749243±126667; compared with current practice, the overall cost savings were A$690864±300464. Conclusion Using WGS to inform infection control teams of pathogen transmission averts patients from isolation rooms and reduces significant resources involved in implementing contact precautions. What is known about the topic? There are an estimated 265000 hospital-acquired infections (HAI) in Australia each year. WGS can accurately identify the genetic lineage among HAIs and determine transmission clusters that can help infection control staff manage patients. Economic appraisals are lacking to inform whether pathogen genomics services should be adopted within already-stretched hospital budgets. What does this paper add? An isolation protocol using pathogen genomics to provide additional information on the relatedness of a pathogen between colonised patients showed favourable results for healthcare costs and patient flow. Using WGS, in a confirmatory role, to discontinue certain patients from contact precautions and isolation rooms resulted in cost savings of A$690864 across 1 year for a single major hospital. What are the implications for practitioners? Using pathogen WGS services for infection control potentially curbs hospital spending, averts patient isolations and improves patient flow within hospitals.
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Affiliation(s)
- Thomas M Elliott
- QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, Qld 4006, Australia. ; ; and Corresponding author.
| | - Nicole Hare
- QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, Qld 4006, Australia. ;
| | - Krispin Hajkowicz
- Infectious Diseases Unit, Royal Brisbane and Women's Hospital, Butterfield Street, Herston, Qld 4029, Australia. ; ; ; and The University of Queensland, Centre for Clinical Research, Building 71/918, Royal Brisbane and Women's Hospital, Herston, Qld 4006, Australia.
| | - Trish Hurst
- Infectious Diseases Unit, Royal Brisbane and Women's Hospital, Butterfield Street, Herston, Qld 4029, Australia. ; ;
| | - Michelle Doidge
- Infectious Diseases Unit, Royal Brisbane and Women's Hospital, Butterfield Street, Herston, Qld 4029, Australia. ; ;
| | - Patrick N Harris
- The University of Queensland, Centre for Clinical Research, Building 71/918, Royal Brisbane and Women's Hospital, Herston, Qld 4006, Australia.
| | - Louisa G Gordon
- QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, Qld 4006, Australia. ; ; and The University of Queensland, School of Public Health, 266 Herston Road, Herston, Qld 4006, Australia; and Queensland University of Technology, School of Nursing, QUT N Block, Ring Road, Kelvin Grove, Qld 4059, Australia
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7
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Stagliano DR, Susi A, Adams DJ, Nylund CM. Epidemiology and Outcomes of Vancomycin-Resistant Enterococcus Infections in the U.S. Military Health System. Mil Med 2021; 186:100-107. [PMID: 33499465 DOI: 10.1093/milmed/usaa229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/02/2020] [Accepted: 08/10/2020] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Vancomycin-resistant enterococci (VRE) are classified by the Centers for Diseases Control and Prevention as a serious antibiotic resistance threat. Our study aims to characterize the epidemiology, associated conditions, and outcomes of VRE infections among hospitalized patients in the U.S. military health system (MHS). MATERIALS AND METHODS We performed a retrospective cohort study of patients with VRE infection using the MHS database. Cases included all patients admitted to a military treatment facility for ≥2 days from October 2008 to September 2015 with a clinical culture growing Enterococcus faecalis, Enterococcus faecium, or Enterococcus species (unspecified), reported as resistant to vancomycin. Co-morbid conditions and procedures associated with VRE infection were identified by multivariable conditional logistic regression. Patient case-mix adjusted outcomes including in-hospital mortality, length of stay, and hospitalization cost were evaluated by high-dimensional propensity score adjustment. RESULTS During the seven-year study period and among 1,161,335 hospitalized patients within the MHS, we identified 577 (0.05%) patients with VRE infection. A majority of VRE infections were urinary tract infections (57.7%), followed by bloodstream (24.7%), other site/device-related (12.9%), respiratory (2.9%), and wound infections (1.8%). Risk factors for VRE infection included invasive gastrointestinal, pulmonary, and urologic procedures, indwelling devices, and exposure to 4th generation cephalosporins, but not to glycopeptides. Patients hospitalized with VRE infection had significantly higher hospitalization costs (attributable difference [AD] $135,534, P<0.001), prolonged hospital stays (AD 20.44 days, P<0.001, and higher in-hospital mortality (case-mix adjusted odds ratio 5.77; 95% confidence interval 4.59-7.25). CONCLUSIONS VRE infections carry a considerable burden for hospitalized patients given their impact on length of stay, hospitalization costs, and in-hospital mortality. Active surveillance and infection control efforts should target those identified as high-risk for VRE infection. Antimicrobial stewardship programs should focus on limiting exposure to 4th generation cephalosporins.
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Affiliation(s)
- David R Stagliano
- Department of Pediatrics, Uniformed Services University, Bethesda, MD 20814, USA
| | - Apryl Susi
- Department of Pediatrics, Uniformed Services University, Bethesda, MD 20814, USA
| | - Daniel J Adams
- Department of Pediatrics, Uniformed Services University, Bethesda, MD 20814, USA.,Department of Pediatrics, Uniformed Services University, Naval Medical Center Portsmouth, Portsmouth, VA 23708, USA
| | - Cade M Nylund
- Department of Pediatrics, Uniformed Services University, Bethesda, MD 20814, USA
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8
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Gordon LG, Elliott TM, Forde B, Mitchell B, Russo PL, Paterson DL, Harris PNA. Budget impact analysis of routinely using whole-genomic sequencing of six multidrug-resistant bacterial pathogens in Queensland, Australia. BMJ Open 2021; 11:e041968. [PMID: 33526501 PMCID: PMC7852923 DOI: 10.1136/bmjopen-2020-041968] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To predict the cost and health effects of routine use of whole-genome sequencing (WGS) of bacterial pathogens compared with those of standard of care. DESIGN Budget impact analysis was performed over the following 5 years. Data were primarily from sequencing results on clusters of multidrug-resistant organisms across 27 hospitals. Model inputs were derived from hospitalisation and sequencing data, and epidemiological and costing reports, and included multidrug resistance rates and their trends. SETTING Queensland, Australia. PARTICIPANTS Hospitalised patients. INTERVENTIONS WGS surveillance of six common multidrug-resistant organisms (Staphylococcus aureus, Escherichia coli, Enterococcus faecium, Klebsiella pneumoniae, Enterobacter sp and Acinetobacter baumannii) compared with standard of care or routine microbiology testing. PRIMARY AND SECONDARY OUTCOMES Expected hospital costs, counts of patient infections and colonisations, and deaths from bloodstream infections. RESULTS In 2021, 97 539 patients in Queensland are expected to be infected or colonised with one of six multidrug-resistant organisms with standard of care testing. WGS surveillance strategy and earlier infection control measures could avoid 36 726 infected or colonised patients and avoid 650 deaths. The total cost under standard of care was $A170.8 million in 2021. WGS surveillance costs an additional $A26.8 million but was offset by fewer costs for cleaning, nursing, personal protective equipment, shorter hospital stays and antimicrobials to produce an overall cost savings of $30.9 million in 2021. Sensitivity analyses showed cost savings remained when input values were varied at 95% confidence limits. CONCLUSIONS Compared with standard of care, WGS surveillance at a state-wide level could prevent a substantial number of hospital patients infected with multidrug-resistant organisms and related deaths and save healthcare costs. Primary prevention through routine use of WGS is an investment priority for the control of serious hospital-associated infections.
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Affiliation(s)
- Louisa G Gordon
- Population Health Department, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Nursing, Queensland University of Technology (QUT), Brisbane, Queensland, Australia
- School of Public Health, The University of Queensland, Brisbane, Queensland, Australia
| | - Thomas M Elliott
- Population Health Department, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Brian Forde
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia
- The University of Queensland, Centre for Clinical Research, Brisbane, Queensland, Australia
| | - Brett Mitchell
- School of Nursing and Midwifery, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Philip L Russo
- School of Nursing and Midwifery, Monash University, Melbourne, Victoria, Australia
| | - David L Paterson
- The University of Queensland, Centre for Clinical Research, Brisbane, Queensland, Australia
| | - Patrick N A Harris
- The University of Queensland, Centre for Clinical Research, Brisbane, Queensland, Australia
- Pathology Queensland, Queensland Health, Brisbane, Queensland, Australia
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Wendelboe AM, Kim SE, Kinney S, Cuellar AE, Salinas L, Chou AF. Cost-Benefit Analysis of Allowing Additional Time in Cleaning Hospital Contact Precautions Rooms. Hosp Top 2021; 99:130-139. [PMID: 33459211 DOI: 10.1080/00185868.2021.1873083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Increasing cleaning time may reduce hospital-acquired transmission of Clostridioides difficile, methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant enterococcus (VRE). We constructed a cost-benefit model to estimate the impact of implementing an enhanced cleaning protocol, allowing hospital housekeepers an additional 15 minutes to terminally clean contact precautions rooms. The enhanced cleaning protocol saved the hospital $758 per terminally-cleaned room when accounting for only C. difficile. Scaling up to a hospital with 100 cases of C. difficile/year, and the US annual C. difficile incidence, cost savings were $75,832/year and $169.8 million/year, respectively. These results may inform infection control strategic decision-making and resource allocation.
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Affiliation(s)
- Aaron M Wendelboe
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sue E Kim
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Sharyl Kinney
- Department of Health Administration and Policy, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Alison E Cuellar
- Department of Health Administration and Policy, College of Health and Human Services, George Mason University, Washington, DC, USA
| | - Linda Salinas
- Department of Internal Medicine, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Ann F Chou
- Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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10
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Hospitalization costs for patients colonized with carbapenemase-producing Enterobacterales during an Australian outbreak. J Hosp Infect 2020; 105:146-153. [PMID: 32179134 DOI: 10.1016/j.jhin.2020.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/05/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Carbapenem-producing Enterobacterales are an expanding group of Gram-negative bacteria that are resistant to carbapenems and cause over 9000 cases of hospital-associated infections in the USA. Efforts to quantify the economic and societal burden to healthcare are important to inform resource planning to implement infection control programmes. AIM We estimated the healthcare costs during an outbreak of carbapenemase-producing Escherichia coli OXA-181 in Australia. We aimed to understand the economic burden to hospitals of patients who are asymptomatically colonized with high-risk bacteria. METHODS Hospital admissions data and associated costs were obtained from the State Health Department. Colonized patients were matched to non-colonized patients on age, sex, admission ward and diagnostic category. Mean healthcare costs and length of stay were examined using generalized linear models and accounted for time-dependent bias, patient age and ward location. FINDINGS On average, colonized patients had six times higher mean costs (AU$155,784; 95% confidence interval (CI): AU$77,892-285,604) than non-colonized patients (AU$25,964). Mean costs for those aged 75-79 years were 50% lower (P=0.02) compared with the youngest subgroup, 35-39 years of age. The mean extended length of stay was 12 days (95% CI: 3-21) for colonized patients. Nursing care was the main driver of overall costs for colonized (44%) and non-colonized (39%) patients. CONCLUSION Patients colonized with carbapenem-producing Enterobacterales during an official hospital outbreak incurred higher costs than non-colonized patients. Although infected patients incur substantial economic burden to hospitals, the costs incurred by colonized patients is also high.
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11
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Kim Y, Bae S, Hwang S, Kwon KT, Chang HH, Kim SJ, Park HK, Lee JM, Kim SW. Does oral doxycycline treatment affect eradication of urine vancomycin-resistant Enterococcus? A tertiary hospital study. Yeungnam Univ J Med 2020; 37:112-121. [PMID: 32074718 PMCID: PMC7142032 DOI: 10.12701/yujm.2019.00430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/20/2020] [Indexed: 11/14/2022] Open
Abstract
Background Vancomycin-resistant Enterococcus (VRE) has become more common in nosocomial infections, especially in urine samples. However, until now, no treatment regimen has been proven to effectively eradicate urine VRE colonization. Therefore, to evaluate the efficacy of doxycycline in eradicating urine VRE and shortening VRE isolation period, we compared VRE colony detection period between doxycycline-treated and untreated patients. Methods A retrospective cohort study of 83 patients with VRE colonization in urine cultures was conducted at a tertiary academic hospital from January 2011 to February 2018. Kaplan-Meier survival analysis was used to evaluate eradication rates in the treatment and non-treatment groups. Factors affecting urine VRE colonization persistence were analyzed by multiple logistic regression analysis. Results The overall rate of VRE eradication during the entire hospital stay was higher in the doxycycline treatment group (90.5%) than in the non-treatment group (58.1%, p=0.014). Survival analysis showed that the 5-, 10-, and 20-day cumulative eradication rates were 78.3%, 100%, and 100% in the doxycycline treatment group, and 18.5%, 45.7%, and 67.8% in the non-treatment group, respectively, thereby indicating that eradication rates were higher in the doxycycline treatment group than in the non-treatment group (p<0.001). Only doxycycline treatment was shown to affect urine VRE colonization persistence in multivariate logistic regression analysis. Conclusion Doxycycline treatment enhanced the eradication rate of urine VRE colonization and appeared to be useful in shortening VRE isolation period.
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Affiliation(s)
- Yoonjung Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Sohyun Bae
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Soyoon Hwang
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Ki Tae Kwon
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Hyun-Ha Chang
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Su-Jeong Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Han-Ki Park
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Jong-Myung Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Shin-Woo Kim
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
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12
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Mac S, Fitzpatrick T, Johnstone J, Sander B. Vancomycin-resistant enterococci (VRE) screening and isolation in the general medicine ward: a cost-effectiveness analysis. Antimicrob Resist Infect Control 2019; 8:168. [PMID: 31687132 PMCID: PMC6820905 DOI: 10.1186/s13756-019-0628-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/16/2019] [Indexed: 11/10/2022] Open
Abstract
Background Vancomycin-resistant enterococci (VRE) are a serious antimicrobial resistant threat in the healthcare setting. We assessed the cost-effectiveness of VRE screening and isolation for patients at high-risk for colonisation on a general medicine ward compared to no VRE screening and isolation from the healthcare payer perspective. Methods We developed a microsimulation model using local data and VRE literature, to simulate a 20-bed general medicine ward at a tertiary-care hospital with up to 1000 admissions, approximating 1 year. Primary outcomes were accrued over the patient's lifetime, discounted at 1.5%, and included expected health outcomes (VRE colonisations, VRE infections, VRE-related bacteremia, and deaths subsequent to VRE infection), quality-adjusted life years (QALYs), healthcare costs, and incremental cost-effectiveness ratio (ICER). Probabilistic sensitivity analysis (PSA) and scenario analyses were conducted to assess parameter uncertainty. Results In our base-case analysis, VRE screening and isolation prevented six healthcare-associated VRE colonisations per 1000 admissions (6/1000), 0.6/1000 VRE-related infections, 0.2/1000 VRE-related bacteremia, and 0.1/1000 deaths subsequent to VRE infection. VRE screening and isolation accrued 0.0142 incremental QALYs at an incremental cost of $112, affording an ICER of $7850 per QALY. VRE screening and isolation practice was more likely to be cost-effective (> 50%) at a cost-effectiveness threshold of $50,000/QALY. Stochasticity (randomness) had a significant impact on the cost-effectiveness. Conclusion VRE screening and isolation can be cost-effective in majority of model simulations at commonly used cost-effectiveness thresholds, and is likely economically attractive in general medicine settings. Our findings strengthen the understanding of VRE prevention strategies and are of importance to hospital program planners and infection prevention and control.
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Affiliation(s)
- Stephen Mac
- 1Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, Suite 425, Toronto, ON M5T 3M6 Canada.,2Toronto Health Economics and Technology Assessment (THETA) Collaborative, University Health Network, 200 Elizabeth Street, 10th Floor, Room 247, Toronto, ON M5G 2C4 Canada
| | - Tiffany Fitzpatrick
- 3Dalla Lana School of Public Health, University of Toronto, 155 College Street, 6th Floor, Toronto, ON M5T 3M7 Canada
| | - Jennie Johnstone
- 3Dalla Lana School of Public Health, University of Toronto, 155 College Street, 6th Floor, Toronto, ON M5T 3M7 Canada.,4Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON M5S 1A8 Canada.,5Public Health Ontario, 480 University Avenue, Suite 300, Toronto, ON M5G 1V2 Canada
| | - Beate Sander
- 1Institute of Health Policy, Management and Evaluation, University of Toronto, 155 College Street, Suite 425, Toronto, ON M5T 3M6 Canada.,2Toronto Health Economics and Technology Assessment (THETA) Collaborative, University Health Network, 200 Elizabeth Street, 10th Floor, Room 247, Toronto, ON M5G 2C4 Canada.,5Public Health Ontario, 480 University Avenue, Suite 300, Toronto, ON M5G 1V2 Canada.,6ICES, G1 06, 2075 Bayview Avenue, Toronto, ON M4N 3M5 Canada
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13
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Zhen X, Lundborg CS, Sun X, Hu X, Dong H. Economic burden of antibiotic resistance in ESKAPE organisms: a systematic review. Antimicrob Resist Infect Control 2019; 8:137. [PMID: 31417673 PMCID: PMC6692939 DOI: 10.1186/s13756-019-0590-7] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 07/31/2019] [Indexed: 02/03/2023] Open
Abstract
Background Antibiotic resistance (ABR) is one of the biggest threats to global health. Infections by ESKAPE (Enterococcus, S. aureus, K. pneumoniae, A. baumannii, P. aeruginosa, and E. coli) organisms are the leading cause of healthcare-acquired infections worldwide. ABR in ESKAPE organisms is usually associated with significant higher morbidity, mortality, as well as economic burden. Directing attention towards the ESKAPE organisms can help us to better combat the wide challenge of ABR, especially multi-drug resistance (MDR). Objective This study aims to systematically review and evaluate the evidence of the economic consequences of ABR or MDR ESKAPE organisms compared with susceptible cases or control patients without infection/colonization in order to determine the impact of ABR on economic burden. Methods Both English-language databases and Chinese-language databases up to 16 January, 2019 were searched to identify relevant studies assessing the economic burden of ABR. Studies reported hospital costs (charges) or antibiotic cost during the entire hospitalization and during the period before/after culture among patients with ABR or MDR ESKAPE organisms were included. The costs were converted into 2015 United States Dollars. Disagreements were resolved by a third reviewer. Results Of 13,693 studies identified, 83 eligible studies were included in our review. The most studied organism was S. aureus, followed by Enterococcus, A. baumannii, E. coli, E. coli or/and K. pneumoniae, P. aeruginosa, and K. pneumoniae. There were 71 studies on total hospital cost or charge, 12 on antibiotic cost, 11 on hospital cost or charge after culture, 4 on ICU cost, 2 on hospital cost or charge before culture, and 2 on total direct and indirect cost. In general, ABR or MDR ESKAPE organisms are significantly associated with higher economic burden than those with susceptible organisms or those without infection or colonization. Nonetheless, there were no differences in a few studies between the two groups on total hospital cost or charge (16 studies), antibiotic cost (one study), hospital cost before culture (one study), hospital cost after culture (one study). Even, one reported that costs associated with MSSA infection were higher than the costs for similar MRSA cases. Conclusions ABR in ESKAPE organisms is not always, but usually, associated with significantly higher economic burden. The results without significant differences may lack statistical power to detect a significant association. In addition, study design which controls for severity of illness and same empirical antibiotic therapy in the two groups would be expected to bias the study towards a similar, even negative result. The review also highlights key areas where further research is needed.
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Affiliation(s)
- Xuemei Zhen
- Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, 310058 Zhejiang China
- Global Health-Health Systems and Policy (HSP): Medicines, focusing antibiotics, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Cecilia Stålsby Lundborg
- Global Health-Health Systems and Policy (HSP): Medicines, focusing antibiotics, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Xueshan Sun
- Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, 310058 Zhejiang China
| | - Xiaoqian Hu
- Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, 310058 Zhejiang China
| | - Hengjin Dong
- Center for Health Policy Studies, School of Public Health, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou, 310058 Zhejiang China
- The Fourth Affiliated Hospital Zhejiang University School of Medicine, No. N1, Shancheng Avenue, Yiwu City, Zhejiang China
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14
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Belga S, Chiang D, Kabbani D, Abraldes JG, Cervera C. The direct and indirect effects of vancomycin-resistant enterococci colonization in liver transplant candidates and recipients. Expert Rev Anti Infect Ther 2019; 17:363-373. [PMID: 30977692 DOI: 10.1080/14787210.2019.1607297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Introduction: Vancomycin-resistant enterococci (VRE) colonization and subsequent infection results in increased morbidity, mortality and use of health-care resources. The burden of VRE colonization in liver transplant candidates and recipients is significant. VRE colonization is a marker of gut dysbiosis and its impact on the microbiota-liver axis, may negatively affect graft function and result in negative outcomes pre- and post-transplantation. Areas covered: In this article we describe the epidemiology of VRE colonization, risk factors for VRE infection, health-care costs associated with VRE, with a focus on the impact of VRE colonization on liver transplant recipients' fecal microbiota, the therapeutic strategies for VRE decolonization and proposed pathophysiologic mechanisms of VRE colonization in liver transplant recipients. Expert opinion: VRE colonization results in a significant loss of bacterial microbiome diversity. This may have metabolic consequences, with low production of short-chain fatty acids which may, in turn, result in immune dysregulation. As antibiotics have failed to decolonize the gut, alternative strategies such as fecal microbiota transplantation (FMT), stimulation of intestinal antimicrobial peptides and phage therapy warrants future studies.
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Affiliation(s)
- Sara Belga
- a Department of Medicine, Division of Infectious Diseases , University of Alberta , Edmonton , Alberta , Canada
| | - Diana Chiang
- a Department of Medicine, Division of Infectious Diseases , University of Alberta , Edmonton , Alberta , Canada
| | - Dima Kabbani
- a Department of Medicine, Division of Infectious Diseases , University of Alberta , Edmonton , Alberta , Canada
| | - Juan G Abraldes
- b Department of Medicine, Division of Gastroenterology and Hepatology , University of Alberta , Edmonton , Alberta , Canada
| | - Carlos Cervera
- a Department of Medicine, Division of Infectious Diseases , University of Alberta , Edmonton , Alberta , Canada
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15
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Mitchell BG, Hall L, White N, Barnett AG, Halton K, Paterson DL, Riley TV, Gardner A, Page K, Farrington A, Gericke CA, Graves N. An environmental cleaning bundle and health-care-associated infections in hospitals (REACH): a multicentre, randomised trial. THE LANCET. INFECTIOUS DISEASES 2019; 19:410-418. [PMID: 30858014 DOI: 10.1016/s1473-3099(18)30714-x] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/08/2018] [Accepted: 11/13/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND The hospital environment is a reservoir for the transmission of microorganisms. The effect of improved cleaning on patient-centred outcomes remains unclear. We aimed to evaluate the effectiveness of an environmental cleaning bundle to reduce health care-associated infections in hospitals. METHODS The REACH study was a pragmatic, multicentre, randomised trial done in 11 acute care hospitals in Australia. Eligible hospitals had an intensive care unit, were classified by the National Health Performance Authority as a major hospital (public hospitals) or having more than 200 inpatient beds (private hospitals), and had a health-care-associated infection surveillance programme. The stepped-wedge design meant intervention periods varied from 20 weeks to 50 weeks. We introduced the REACH cleaning bundle, a multimodal intervention, focusing on optimising product use, technique, staff training, auditing with feedback, and communication, for routine cleaning. The primary outcomes were incidences of health-care-associated Staphylococcus aureus bacteraemia, Clostridium difficile infection, and vancomycin-resistant enterococci infection. The secondary outcome was the thoroughness of cleaning of frequent touch points, assessed by a fluorescent marking gel. This study is registered with the Australian and New Zealand Clinical Trial Registry, number ACTRN12615000325505. FINDINGS Between May 9, 2016, and July 30, 2017, we implemented the cleaning bundle in 11 hospitals. In the pre-intervention phase, there were 230 cases of vancomycin-resistant enterococci infection, 362 of S aureus bacteraemia, and 968 C difficile infections, for 3 534 439 occupied bed-days. During intervention, there were 50 cases of vancomycin-resistant enterococci infection, 109 of S aureus bacteraemia, and 278 C difficile infections, for 1 267 134 occupied bed-days. After the intervention, vancomycin-resistant enterococci infections reduced from 0·35 to 0·22 per 10 000 occupied bed-days (relative risk 0·63, 95% CI 0·41-0·97, p=0·0340). The incidences of S aureus bacteraemia (0·97 to 0·80 per 10 000 occupied bed-days; 0·82, 0·60-1·12, p=0·2180) and C difficile infections (2·34 to 2·52 per 10 000 occupied bed-days; 1·07, 0·88-1·30, p=0·4655) did not change significantly. The intervention increased the percentage of frequent touch points cleaned in bathrooms from 55% to 76% (odds ratio 2·07, 1·83-2·34, p<0·0001) and bedrooms from 64% to 86% (1·87, 1·68-2·09, p<0·0001). INTERPRETATION The REACH cleaning bundle was successful at improving cleaning thoroughness and showed great promise in reducing vancomycin-resistant enterococci infections. Our work will inform hospital cleaning policy and practice, highlighting the value of investment in both routine and discharge cleaning practice. FUNDING National Health and Medical Research Council (Australia).
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Affiliation(s)
- Brett G Mitchell
- Faculty of Nursing and Health, Avondale College, Wahroonga, NSW, Australia; School of Nursing and Midwifery, University of Newcastle, Newcastle, NSW, Australia.
| | - Lisa Hall
- School of Public Health, University of Queensland, Herston, QLD, Australia; School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Nicole White
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia; School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Adrian G Barnett
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia; School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Kate Halton
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - David L Paterson
- University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, Herston, QLD, Australia
| | - Thomas V Riley
- School of Biomedical Sciences, The University of Western Australia, Crawley, WA, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia; School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, Australia; PathWest Laboratory Medicine, QEII Medical Centre, Nedlands, WA, Australia
| | - Anne Gardner
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Katie Page
- School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Alison Farrington
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia; School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
| | - Christian A Gericke
- School of Clinical Medicine, University of Queensland, Herston, QLD, Australia; College of Public Health, Medical and Veterinary Sciences and College of Medicine and Dentistry, James Cook University, Cairns, QLD, Australia
| | - Nicholas Graves
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia; School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia
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16
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Kramer TS, Remschmidt C, Werner S, Behnke M, Schwab F, Werner G, Gastmeier P, Leistner R. The importance of adjusting for enterococcus species when assessing the burden of vancomycin resistance: a cohort study including over 1000 cases of enterococcal bloodstream infections. Antimicrob Resist Infect Control 2018; 7:133. [PMID: 30459945 PMCID: PMC6234683 DOI: 10.1186/s13756-018-0419-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 10/11/2018] [Indexed: 01/27/2023] Open
Abstract
Background Infections caused by vancomycin-resistant enterococci (VRE) are on the rise worldwide. Few studies have tried to estimate the mortality burden as well as the financial burden of those infections and found that VRE are associated with increased mortality and higher hospital costs. However, it is unclear whether these worse outcomes are attributable to vancomycin resistance only or whether the enterococcal species (Enterococcus faecium or Enterococcus faecalis) play an important role. We therefore aimed to determine the burden of enterococci infections attributable to vancomycin resistance and pathogen species (E. faecium and E. faecalis) in cases of bloodstream infection (BSI). Methods We conducted a retrospective cohort study on patients with BSI caused by Enterococcus faecium or Enterococcus faecalis between 2008 and 2015 in three tertiary care hospitals. Data was collected on true hospital costs (in €), length of stay (LOS), basic demographic parameters, and underlying diseases including the results of the Charlson comorbidity index (CCI). We used univariate and multivariable regression analyses to compare risk factors for in-hospital mortality and length of stay (i) between vancomycin-susceptible E. faecium- (VSEm) and vancomycin-susceptible E. faecalis- (VSEf) cases and (ii) between vancomycin-susceptible E. faecium- (VSEm) and vancomycin-resistant E. faecium-cases (VREm). We calculated total hospital costs for VSEm, VSEf and VREm. Results Overall, we identified 1160 consecutive cases of BSI caused by enterococci: 596 (51.4%) cases of E. faecium BSI and 564 (48.6%) cases of E. faecalis BSI. 103 cases of E. faecium BSI (17.3%) and 1 case of E. faecalis BSI (0.2%) were infected by vancomycin-resistant isolates. Multivariable analyses revealed (i) that in addition to different underlying diseases E. faecium was an independent risk factor for in-hospital mortality and prolonged hospital stay and (ii) that vancomycin-resistance did not further increase the risk for the described outcomes among E. faecium-isolates. However, the overall hospital costs were significantly higher in VREm-BSI cases as compared to VSEm- and VSEf-BSI cases (80,465€ vs. 51,365€ vs. 31,122€ p < 0.001). Conclusion Our data indicates that in-hospital mortality and infection-attributed hospital stay in enterococci BSI might rather be influenced by Enterococcus species and underlying diseases than by vancomycin resistance. Therefore, future studies should consider adjusting for Enterococcus species in addition to vancomycin resistance in order to provide a conservative estimate for the burden of VRE infections. Electronic supplementary material The online version of this article (10.1186/s13756-018-0419-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tobias Siegfried Kramer
- 1Charité Universitätsmedizin Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.,National Reference Center for the Surveillance of Nosocomial Infections, Berlin, Germany
| | - Cornelius Remschmidt
- 1Charité Universitätsmedizin Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.,National Reference Center for the Surveillance of Nosocomial Infections, Berlin, Germany
| | - Sven Werner
- 3Department of Medical and Financial Controlling, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Behnke
- 1Charité Universitätsmedizin Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.,National Reference Center for the Surveillance of Nosocomial Infections, Berlin, Germany
| | - Frank Schwab
- 1Charité Universitätsmedizin Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.,National Reference Center for the Surveillance of Nosocomial Infections, Berlin, Germany
| | - Guido Werner
- 4Robert Koch Institute, FG13 Nosocomial Pathogens and Antibiotic Resistance, Wernigerode, Germany.,National Reference Centre for Staphylococci and Enterococci, Berlin, Germany
| | - Petra Gastmeier
- 1Charité Universitätsmedizin Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.,National Reference Center for the Surveillance of Nosocomial Infections, Berlin, Germany
| | - Rasmus Leistner
- 1Charité Universitätsmedizin Berlin, Institute of Hygiene and Environmental Medicine, Berlin, Germany.,National Reference Center for the Surveillance of Nosocomial Infections, Berlin, Germany
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17
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Manoukian S, Stewart S, Dancer S, Graves N, Mason H, McFarland A, Robertson C, Reilly J. Estimating excess length of stay due to healthcare-associated infections: a systematic review and meta-analysis of statistical methodology. J Hosp Infect 2018; 100:222-235. [PMID: 29902486 DOI: 10.1016/j.jhin.2018.06.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/05/2018] [Indexed: 02/09/2023]
Abstract
BACKGROUND Healthcare-associated infection (HCAI) affects millions of patients worldwide. HCAI is associated with increased healthcare costs, owing primarily to increased hospital length of stay (LOS) but calculating these costs is complicated due to time-dependent bias. Accurate estimation of excess LOS due to HCAI is essential to ensure that we invest in cost-effective infection prevention and control (IPC) measures. AIM To identify and review the main statistical methods that have been employed to estimate differential LOS between patients with, and without, HCAI; to highlight and discuss potential biases of all statistical approaches. METHODS A systematic review from 1997 to April 2017 was conducted in PubMed, CINAHL, ProQuest and EconLit databases. Studies were quality-assessed using an adapted Newcastle-Ottawa Scale (NOS). Methods were categorized as time-fixed or time-varying, with the former exhibiting time-dependent bias. Two examples of meta-analysis were used to illustrate how estimates of excess LOS differ between different studies. FINDINGS Ninety-two studies with estimates on excess LOS were identified. The majority of articles employed time-fixed methods (75%). Studies using time-varying methods are of higher quality according to NOS. Studies using time-fixed methods overestimate additional LOS attributable to HCAI. Undertaking meta-analysis is challenging due to a variety of study designs and reporting styles. Study differences are further magnified by heterogeneous populations, case definitions, causative organisms, and susceptibilities. CONCLUSION Methodologies have evolved over the last 20 years but there is still a significant body of evidence reliant upon time-fixed methods. Robust estimates are required to inform investment in cost-effective IPC interventions.
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Affiliation(s)
- S Manoukian
- Yunus Centre for Social Business and Health, Glasgow Caledonian University, Cowcaddens Road, Glasgow, UK.
| | - S Stewart
- School of Health and Life Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow, UK
| | - S Dancer
- Department of Microbiology, Hairmyres Hospital, NHS Lanarkshire, UK
| | - N Graves
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - H Mason
- Yunus Centre for Social Business and Health, Glasgow Caledonian University, Cowcaddens Road, Glasgow, UK
| | - A McFarland
- School of Health and Life Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow, UK
| | - C Robertson
- Department of Mathematics and Statistics, University of Strathclyde, Glasgow, UK
| | - J Reilly
- School of Health and Life Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow, UK
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18
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Engler-Hüsch S, Heister T, Mutters NT, Wolff J, Kaier K. In-hospital costs of community-acquired colonization with multidrug-resistant organisms at a German teaching hospital. BMC Health Serv Res 2018; 18:737. [PMID: 30257671 PMCID: PMC6158851 DOI: 10.1186/s12913-018-3549-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/20/2018] [Indexed: 01/02/2023] Open
Abstract
Background Antibiotic resistance is a challenge in the management of infectious diseases and can cause substantial cost. Even without the onset of infection, measures must be taken, as patients colonized with multi-drug resistant (MDR) pathogens may transmit the pathogen. We aim to quantify the cost of community-acquired MDR colonizations using routine data from a German teaching hospital. Methods All 2006 cases of documented MDR colonization at hospital admission recorded from 2011 to 2014 are matched to 7917 unexposed controls with the same primary diagnosis. Cases with an onset MDR infection are excluded from the analysis. Routine data on costs per case is analysed for three groups of MDR bacteria: Methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococcus (VRE), and multidrug-resistant gram-negative bacteria (MDR-GN). Multivariate analyses are conducted to adjust for potential confounders. Results After controlling for main diagnosis group, age, sex, and Charlson Comorbidity Index, MDR colonization is associated with substantial additional costs from the healthcare perspective (€1480.9, 95%CI €1286.4–€1675.5). Heterogeneity between pathogens remains. Colonization with MDR-GN leads to the largest cost increase (€1966.0, 95%CI €1634.6–€2297.4), followed by MRSA with €1651.3 (95%CI €1279.1–€2023.6), and VRE with €879.2 (95%CI €604.1–€1154.2). At the same time, MDR-GN is associated with additional reimbursements of €887.8 (95%CI €722.1–€1053.6), i.e. costs associated with MDR-colonization exceed reimbursement. Conclusions Even without the onset of invasive infection, documented MDR-colonization at hospital admission is associated with increased hospital costs, which are not fully covered within the German DRG-based hospital payment system. Electronic supplementary material The online version of this article (10.1186/s12913-018-3549-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sabine Engler-Hüsch
- Institute for Medical Biometry and Statistics, Faculty of Medicine and Medical Centre - University of Freiburg, Freiburg, Germany
| | - Thomas Heister
- Institute for Medical Biometry and Statistics, Faculty of Medicine and Medical Centre - University of Freiburg, Freiburg, Germany.
| | - Nico T Mutters
- Institute for Infection Prevention and Hospital Epidemiology, Medical Centre - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jan Wolff
- Department of Psychiatry and Psychotherapy, Faculty of Medicine and Medical Centre - University of Freiburg, Freiburg, Germany
| | - Klaus Kaier
- Institute for Medical Biometry and Statistics, Faculty of Medicine and Medical Centre - University of Freiburg, Freiburg, Germany
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19
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The Use of Microbiome Restoration Therapeutics to Eliminate Intestinal Colonization With Multidrug-Resistant Organisms. Am J Med Sci 2018; 356:433-440. [PMID: 30384952 DOI: 10.1016/j.amjms.2018.08.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 12/17/2022]
Abstract
Antibiotic resistance (AR) has been described by the World Health Organization as an increasingly serious threat to global public health. Many mechanisms of AR have become widespread due to global selective pressures such as widespread antibiotic use. The intestinal tract is an important reservoir for many multidrug-resistant organisms (MDROs), and next-generation sequencing has expanded understanding of the resistome, defined as the comprehensive sum of genetic determinants of AR. Intestinal decolonization has been explored as a strategy to eradicate MDROs with selective digestive tract decontamination and probiotics being notable examples with mixed results. This review focuses on fecal microbiota transplantation and the early evidence supporting its efficacy in decolonizing MDROs and potential mechanisms of action to reduce AR genes. Current evidence suggests that fecal microbiota transplantation may have promise in restoring healthy microbial diversity and reducing AR, and clinical trials are underway to better characterize its safety and efficacy.
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20
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Naylor NR, Atun R, Zhu N, Kulasabanathan K, Silva S, Chatterjee A, Knight GM, Robotham JV. Estimating the burden of antimicrobial resistance: a systematic literature review. Antimicrob Resist Infect Control 2018; 7:58. [PMID: 29713465 PMCID: PMC5918775 DOI: 10.1186/s13756-018-0336-y] [Citation(s) in RCA: 283] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 03/14/2018] [Indexed: 01/02/2023] Open
Abstract
Background Accurate estimates of the burden of antimicrobial resistance (AMR) are needed to establish the magnitude of this global threat in terms of both health and cost, and to paramaterise cost-effectiveness evaluations of interventions aiming to tackle the problem. This review aimed to establish the alternative methodologies used in estimating AMR burden in order to appraise the current evidence base. Methods MEDLINE, EMBASE, Scopus, EconLit, PubMed and grey literature were searched. English language studies evaluating the impact of AMR (from any microbe) on patient, payer/provider and economic burden published between January 2013 and December 2015 were included. Independent screening of title/abstracts followed by full texts was performed using pre-specified criteria. A study quality score (from zero to one) was derived using Newcastle-Ottawa and Philips checklists. Extracted study data were used to compare study method and resulting burden estimate, according to perspective. Monetary costs were converted into 2013 USD. Results Out of 5187 unique retrievals, 214 studies were included. One hundred eighty-seven studies estimated patient health, 75 studies estimated payer/provider and 11 studies estimated economic burden. 64% of included studies were single centre. The majority of studies estimating patient or provider/payer burden used regression techniques. 48% of studies estimating mortality burden found a significant impact from resistance, excess healthcare system costs ranged from non-significance to $1 billion per year, whilst economic burden ranged from $21,832 per case to over $3 trillion in GDP loss. Median quality scores (interquartile range) for patient, payer/provider and economic burden studies were 0.67 (0.56-0.67), 0.56 (0.46-0.67) and 0.53 (0.44-0.60) respectively. Conclusions This study highlights what methodological assumptions and biases can occur dependent on chosen outcome and perspective. Currently, there is considerable variability in burden estimates, which can lead in-turn to inaccurate intervention evaluations and poor policy/investment decisions. Future research should utilise the recommendations presented in this review. Trial registration This systematic review is registered with PROSPERO (PROSPERO CRD42016037510).
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Affiliation(s)
- Nichola R. Naylor
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College, Hammersmith Campus, London, W12 0NN UK
| | - Rifat Atun
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College, Hammersmith Campus, London, W12 0NN UK
- Harvard University, 665 Huntington Avenue, Boston, MA 02115 USA
| | - Nina Zhu
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College, Hammersmith Campus, London, W12 0NN UK
| | - Kavian Kulasabanathan
- Imperial College London, Sir Alexander Fleming Building, South Kensington Campus, London, UK
| | - Sachin Silva
- Harvard University, 665 Huntington Avenue, Boston, MA 02115 USA
| | - Anuja Chatterjee
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College, Hammersmith Campus, London, W12 0NN UK
| | - Gwenan M. Knight
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College, Hammersmith Campus, London, W12 0NN UK
| | - Julie V. Robotham
- National Institute for Health Research Health Protection Research Unit in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College, Hammersmith Campus, London, W12 0NN UK
- Modelling and Economics Unit, National Infection Service, Public Health England, 61 Colindale Avenue, London, NW9 5EQ UK
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21
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Lloyd-Smith P. Controlling for endogeneity in attributable costs of vancomycin-resistant enterococci from a Canadian hospital. Am J Infect Control 2017; 45:e161-e164. [PMID: 29056328 DOI: 10.1016/j.ajic.2017.08.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/29/2017] [Accepted: 08/30/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Decisions regarding the optimal provision of infection prevention and control resources depend on accurate estimates of the attributable costs of health care-associated infections. This is challenging given the skewed nature of health care cost data and the endogeneity of health care-associated infections. The objective of this study is to determine the hospital costs attributable to vancomycin-resistant enterococci (VRE) while accounting for endogeneity. METHODS This study builds on an attributable cost model conducted by a retrospective cohort study including 1,292 patients admitted to an urban hospital in Vancouver, Canada. Attributable hospital costs were estimated with multivariate generalized linear models (GLMs). To account for endogeneity, a control function approach was used. RESULTS The analysis sample included 217 patients with health care-associated VRE. In the standard GLM, the costs attributable to VRE are $17,949 (SEM, $2,993). However, accounting for endogeneity, the attributable costs were estimated to range from $14,706 (SEM, $7,612) to $42,101 (SEM, $15,533). Across all model specifications, attributable costs are 76% higher on average when controlling for endogeneity. CONCLUSIONS VRE was independently associated with increased hospital costs, and controlling for endogeneity lead to higher attributable cost estimates.
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Barker AK, Brown K, Siraj D, Ahsan M, Sengupta S, Safdar N. Barriers and facilitators to infection control at a hospital in northern India: a qualitative study. Antimicrob Resist Infect Control 2017; 6:35. [PMID: 28405312 PMCID: PMC5385016 DOI: 10.1186/s13756-017-0189-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/17/2017] [Indexed: 01/29/2023] Open
Abstract
Background Hospital acquired infections occur at higher rates in low- and middle-income countries, like India, than in high-income countries. Effective implementation of infection control practices is crucial to reducing the transmission of hospital acquired infections at hospitals worldwide. Yet, no comprehensive assessments of the barriers to sustained, successful implementation of hospital interventions have been performed in Indian healthcare settings to date. The Systems Engineering Initiative for Patient Safety (SEIPS) model examines problems through the lens of interactions between people and systems. It is a natural fit for investigating the behavioral and systematic components of infection control practices. Methods We conducted a qualitative study to assess the facilitators and barriers to infection control practices at a 1250 bed tertiary care hospital in Haryana, northern India. Twenty semi-structured interviews of nurses and physicians, selected by convenience sampling, were conducted in English using an interview guide based on the SEIPS model. All interview data was subsequently transcribed and coded for themes. Results Person, task, and organizational level factors were the primary barriers and facilitators to infection control at this hospital. Major barriers included a high rate of nursing staff turnover, time spent training new staff, limitations in language competency, and heavy clinical workloads. A well developed infection control team and an institutional climate that prioritizes infection control were major facilitators. Conclusions Institutional support is critical to the effective implementation of infection control practices. Prioritizing resources to recruit and retain trained, experienced nursing staff is also essential. Electronic supplementary material The online version of this article (doi:10.1186/s13756-017-0189-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anna K Barker
- Department of Population Health Sciences, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, WI USA
| | - Kelli Brown
- Department of Population Health Sciences, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, WI USA
| | - Dawd Siraj
- Department of Medicine, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, WI USA
| | - Muneeb Ahsan
- Medanta Institute of Eduation and Research, Medanta the Medicity Hospital, Gurgaon, Haryana India
| | - Sharmila Sengupta
- Department of Clinical Microbiology & Infection Control, Medanta the Medicity Hospital, Gurgaon, Haryana India
| | - Nasia Safdar
- Department of Medicine, University of Wisconsin-Madison, School of Medicine and Public Health, Madison, WI USA.,William S. Middleton Memorial Veterans Affairs Hospital, Madison, WI USA
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23
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Reduction in hospital-associated methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus with daily chlorhexidine gluconate bathing for medical inpatients. Am J Infect Control 2017; 45:255-259. [PMID: 27938986 DOI: 10.1016/j.ajic.2016.09.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 11/21/2022]
Abstract
BACKGROUND Daily bathing with chlorhexidine gluconate (CHG) is increasingly used in intensive care units to prevent hospital-associated infections, but limited evidence exists for noncritical care settings. METHODS A prospective crossover study was conducted on 4 medical inpatient units in an urban, academic Canadian hospital from May 1, 2014-August 10, 2015. Intervention units used CHG over a 7-month period, including a 1-month wash-in phase, while control units used nonmedicated soap and water bathing. Rates of hospital-associated methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) colonization or infection were the primary end point. Hospital-associated S. aureus were investigated for CHG resistance with a qacA/B and smr polymerase chain reaction (PCR) and agar dilution. RESULTS Compliance with daily CHG bathing was 58%. Hospital-associated MRSA and VRE was decreased by 55% (5.1 vs 11.4 cases per 10,000 inpatient days, P = .04) and 36% (23.2 vs 36.0 cases per 10,000 inpatient days, P = .03), respectively, compared with control cohorts. There was no significant difference in rates of hospital-associated Clostridium difficile. Chlorhexidine resistance testing identified 1 isolate with an elevated minimum inhibitory concentration (8 µg/mL), but it was PCR negative. CONCLUSIONS This prospective pragmatic study to assess daily bathing for CHG on inpatient medical units was effective in reducing hospital-associated MRSA and VRE. A critical component of CHG bathing on medical units is sustained and appropriate application, which can be a challenge to accurately assess and needs to be considered before systematic implementation.
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24
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Semret M, Dyachenko A, Ramman-Haddad L, Belzile E, McCusker J. Cleaning the grey zones of hospitals: A prospective, crossover, interventional study. Am J Infect Control 2016; 44:1582-1588. [PMID: 27397907 DOI: 10.1016/j.ajic.2016.04.234] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Environmental cleaning is a fundamental principle of infection prevention in hospitals, but its role in reducing transmission of health care-acquired pathogens has been difficult to prove experimentally. In this study we analyze the influence of cleaning previously uncleaned patient care items, grey zones (GZ), on health care-acquired transmission rates. METHODS The intervention consisted of specific GZ cleaning by an extra cleaner (in addition to routine cleaning) on 2 structurally different acute care medical wards for a period of 6 months each, in a crossover design. Data on health care-acquired transmissions of vancomycin-resistant enterococci (VRE), methicillin-resistant Staphylococcus aureus, and Clostridium difficile were collected during both periods. Adjusted incidence rate ratios (IRRs) using Poisson regression were calculated to compare transmission of pathogens between both periods on both wards. RESULTS During the intervention VRE transmission was significantly decreased (2-fold) on the ward where patients had fewer roommates; cleaning of GZ did not have any effect on the ward with multiple-occupancy rooms. There was no impact on methicillin-resistant S aureus transmission and only a nonsignificant decrease in transmission of C difficile. CONCLUSIONS Our data provide evidence that targeted cleaning interventions can reduce VRE transmission when rooming conditions are optimized; such interventions can be cost-effective when the burden of VRE is significant. Enhanced cleaning interventions are less beneficial in the context of room sharing where many other factors contribute to transmission of pathogens.
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Affiliation(s)
- Makeda Semret
- McGill University, Montreal, Quebec, Canada; St Mary's Hospital Centre, Montreal, Quebec, Canada.
| | | | | | - Eric Belzile
- St Mary's Hospital Centre, Montreal, Quebec, Canada
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25
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Dubberke ER, Mullane KM, Gerding DN, Lee CH, Louie TJ, Guthertz H, Jones C. Clearance of Vancomycin-Resistant Enterococcus Concomitant With Administration of a Microbiota-Based Drug Targeted at Recurrent Clostridium difficile Infection. Open Forum Infect Dis 2016; 3:ofw133. [PMID: 27703995 PMCID: PMC5047394 DOI: 10.1093/ofid/ofw133] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 06/15/2016] [Indexed: 02/06/2023] Open
Abstract
Background. Vancomycin-resistant Enterococcus (VRE) is a major healthcare-associated pathogen and a well known complication among transplant and immunocompromised patients. We report on stool VRE clearance in a post hoc analysis of the Phase 2 PUNCH CD study assessing a microbiota-based drug for recurrent Clostridium difficile infection (CDI). Methods. A total of 34 patients enrolled in the PUNCH CD study received 1 or 2 doses of RBX2660 (microbiota suspension). Patients were requested to voluntarily submit stool samples at baseline and at 7, 30, and 60 days and 6 months after the last administration of RBX2660. Stool samples were tested for VRE using bile esculin azide agar with 6 µg/mL vancomycin and Gram staining. Vancomycin resistance was confirmed by Etest. Results. VRE status (at least 1 test result) was available for 30 patients. All stool samples for 19 patients (63.3%, mean age 61.7 years, 68% female) tested VRE negative. Eleven patients (36.7%, mean age 75.5 years, 64% female) were VRE positive at the first test (baseline or 7-day follow-up). Of these patients, 72.7%, n = 8 converted to negative as of the last available follow-up (30 or 60 days or 6 months). Of the other 3: 1 died (follow-up data not available); 1 patient remained positive at all follow-ups; 1 patient retested positive at 6 months with negative tests during the interim. Conclusions. Although based on a small sample size, this secondary analysis demonstrated the possibility of successfully converting a high percentage of VRE-positive patients to negative in a recurrent CDI population with RBX2660.
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Affiliation(s)
- Erik R Dubberke
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Kathleen M Mullane
- Section of Infectious Diseases and Global Health, University of Chicago Medicine
| | - Dale N Gerding
- Department of Medicine, Loyola University Chicago Stritch School of Medicine, Maywood; Edward Hines Jr. Veterans Affairs Hospital, Hines, Illinois
| | - Christine H Lee
- Department of Medicine, McMaster University, Hamilton, Ontario
| | - Thomas J Louie
- Departments of Medicine and Microbiology-Immunology and Infectious Diseases, University of Calgary, Alberta, Canada
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Popiel KY, Miller MA. Evaluation of Vancomycin-Resistant Enterococci (VRE)–Associated Morbidity Following Relaxation of VRE Screening and Isolation Precautions in a Tertiary Care Hospital. Infect Control Hosp Epidemiol 2016; 35:818-25. [DOI: 10.1086/676860] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
ObjectiveTo determine whether relaxing vancomycin-resistant enterococci (VRE) precautions results in an increase in the incidence of invasive VRE infections over time.DesignRetrospective analysis of a microbiology database before and after relaxation of VRE screening and isolation precautions.SettingUrban tertiary care teaching hospital in Montreal, Canada.Participants.All hospitalized and emergency room patients over a 13-year period from January 1, 2000, to March 31, 2013.MethodsWe assessed the results of all microbiology cultures for the presence of VRE as well as the results of all polymerase chain reaction assays forvanAandvanBduring the study period. Applying criteria for 4 clinical situations (bacteremia, definite infection, possible infection, and colonization with VRE), we analyzed the effects of relaxed VRE screening and isolation precautions on the incidence of each of these outcomes over the time preceding and following this change.ResultsWhen VRE screening and isolation precautions were relaxed, a marked rise in VRE colonization was observed, with a lesser but definite rise in the 3 other outcomes. Despite this initial rise in all measures, all incidences other than colonization plateaued during the 34 months of follow-up.ConclusionsRelaxation of VRE screening and isolation precautions was associated with an immediate increase in colonization and infection incidence. Despite increasing colonization, infection outcomes remained infrequent and stable, suggesting a finite number of susceptible hosts at risk. Relaxation of VRE protocols may not lead to increasing infection incidence in a hospital setting, advocating that cost effectiveness exercises, with targeted screening and isolation precautions, are crucial.
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27
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Shukla BS, Shelburne S, Reyes K, Kamboj M, Lewis JD, Rincon SL, Reyes J, Carvajal LP, Panesso D, Sifri CD, Zervos MJ, Pamer EG, Tran TT, Adachi J, Munita JM, Hasbun R, Arias CA. Influence of Minimum Inhibitory Concentration in Clinical Outcomes of Enterococcus faecium Bacteremia Treated With Daptomycin: Is it Time to Change the Breakpoint? Clin Infect Dis 2016; 62:1514-1520. [PMID: 27045126 DOI: 10.1093/cid/ciw173] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 03/14/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Daptomycin has become a front-line antibiotic for multidrug-resistant Enterococcus faecium bloodstream infections (BSIs). We previously showed that E. faecium strains with daptomycin minimum inhibitory concentrations (MICs) in the higher end of susceptibility frequently harbor mutations associated with daptomycin resistance. We postulate that patients with E. faecium BSIs exhibiting daptomycin MICs of 3-4 µg/mL treated with daptomycin are more likely to have worse clinical outcomes than those exhibiting daptomycin MICs ≤2 µg/mL. METHODS We conducted a multicenter retrospective cohort study that included adult patients with E. faecium BSI for whom initial isolates, follow-up blood culture data, and daptomycin administration data were available. A central laboratory performed standardized daptomycin MIC testing for all isolates. The primary outcome was microbiologic failure, defined as clearance of bacteremia ≥4 days after the index blood culture. The secondary outcome was all-cause in-hospital mortality. RESULTS A total of 62 patients were included. Thirty-one patients were infected with isolates that exhibited daptomycin MICs of 3-4 µg/mL. Overall, 34 patients had microbiologic failure and 25 died during hospitalization. In a multivariate logistic regression model, daptomycin MICs of 3-4 µg/mL (odds ratio [OR], 4.7 [1.37-16.12]; P = .014) and immunosuppression (OR, 5.32 [1.20-23.54]; P = .028) were significantly associated with microbiologic failure. Initial daptomycin dose of ≥8 mg/kg was not significantly associated with evaluated outcomes. CONCLUSIONS Daptomycin MICs of 3-4 µg/mL in the initial E. faecium blood isolate predicted microbiological failure of daptomycin therapy, suggesting that modification in the daptomycin breakpoint for enterococci should be considered.
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Affiliation(s)
- Bhavarth S Shukla
- University of Texas Medical School at Houston.,Department of Infectious Diseases
| | - Samuel Shelburne
- Department of Infectious Diseases.,Genomic Medicine, M.D. Anderson Cancer Center, Houston, Texas
| | - Katherine Reyes
- Department of Internal Medicine, Division of Infectious Diseases, Henry Ford Hospital, Detroit, Michigan
| | - Mini Kamboj
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jessica D Lewis
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia Health System, Charlottesville
| | - Sandra L Rincon
- University of Texas Medical School at Houston.,Molecular Genetics and Antimicrobial Resistance Unit, Universidad El Bosque, Bogota, Colombia
| | - Jinnethe Reyes
- Molecular Genetics and Antimicrobial Resistance Unit, Universidad El Bosque, Bogota, Colombia
| | - Lina P Carvajal
- Molecular Genetics and Antimicrobial Resistance Unit, Universidad El Bosque, Bogota, Colombia
| | - Diana Panesso
- University of Texas Medical School at Houston.,Molecular Genetics and Antimicrobial Resistance Unit, Universidad El Bosque, Bogota, Colombia
| | - Costi D Sifri
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia Health System, Charlottesville
| | - Marcus J Zervos
- Department of Internal Medicine, Division of Infectious Diseases, Henry Ford Hospital, Detroit, Michigan.,Wayne State University School of Medicine, Detroit, Michigan
| | - Eric G Pamer
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Truc T Tran
- University of Texas Medical School at Houston
| | | | - Jose M Munita
- University of Texas Medical School at Houston.,Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | | | - Cesar A Arias
- University of Texas Medical School at Houston.,Molecular Genetics and Antimicrobial Resistance Unit, Universidad El Bosque, Bogota, Colombia
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28
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Ulu-Kilic A, Özhan E, Altun D, Perçin D, Güneş T, Alp E. Is it worth screening for vancomycin-resistant Enterococcus faecium colonization?: Financial burden of screening in a developing country. Am J Infect Control 2016; 44:e45-9. [PMID: 26775930 DOI: 10.1016/j.ajic.2015.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/05/2015] [Accepted: 11/11/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND The screening of critically ill patients at high risk of vancomycin resistant enterococci (VRE) colonization, to detect and isolate colonized patients, is recommended to prevent and control the transmission of VRE. Screening asymptomatic carriers brings financial burden for institutions. In this study, we performed risk analysis for VRE colonization and determined the financial burden of screening in a middle-income country, Turkey. METHODS We retrospectively analyzed the VRE surveillance data from a pediatric hospital between 2010 and 2014. A case-control study was conducted to identify the risk factors of colonization. Total cost of VRE screening and additional costs for a VRE colonized patient (including active surveillance cultures and contact isolation) were calculated. RESULTS During the 4-year period, 6,372 patients were screened for perirectal VRE colonization. The rate of culture-positive specimens among all patients screened was 239 (3.75%). The rate of VRE infection was 0.04% (n = 3) among all patients screened. Length of hospital stay, malignancy, and being transferred from another institution were independently associated risk factors for colonization. Annual estimated costs for the laboratory were projected as $19,074 (76,295/4) for all patients screened. Cost of contact isolation for each patient colonized in a ward and an intensive care unit was $270 and $718, respectively. CONCLUSIONS In developing countries, institutions should identify their own high-risk patients; screening priorities should be based on prevalence of infection and hospital financial resources.
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Affiliation(s)
- Aysegul Ulu-Kilic
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
| | - Esra Özhan
- Infection Control Committee, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Dilek Altun
- Infection Control Committee, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Duygu Perçin
- Department of Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Tamer Güneş
- Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Emine Alp
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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29
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Toner L, Papa N, Aliyu SH, Dev H, Lawrentschuk N, Al-Hayek S. Vancomycin resistant enterococci in urine cultures: Antibiotic susceptibility trends over a decade at a tertiary hospital in the United Kingdom. Investig Clin Urol 2016; 57:129-34. [PMID: 26981595 PMCID: PMC4791667 DOI: 10.4111/icu.2016.57.2.129] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 02/23/2016] [Indexed: 11/23/2022] Open
Abstract
Purpose Enterococci are a common cause of urinary tract infection and vancomycin-resistant strains are more difficult to treat. The purpose of this surveillance program was to assess the prevalence of and determine the risk factors for vancomycin resistance in adults among urinary isolates of Enterococcus sp. and to detail the antibiotic susceptibility profile, which can be used to guide empirical treatment. Materials and Methods From 2005 to 2014 we retrospectively reviewed 5,528 positive Enterococcus sp. urine cultures recorded in a computerized laboratory results database at a tertiary teaching hospital in Cambridge, United Kingdom. Results Of these cultures, 542 (9.8%) were vancomycin resistant. No longitudinal trend was observed in the proportion of vancomycin-resistant strains over the course of the study. We observed emerging resistance to nitrofurantoin with rates climbing from near zero to 40%. Ampicillin resistance fluctuated between 50% and 90%. Low resistance was observed for linezolid and quinupristin/dalfopristin. Female sex and inpatient status were identified as risk factors for vancomycin resistance. Conclusions The incidence of vancomycin resistance among urinary isolates was stable over the last decade. Although resistance to nitrofurantoin has increased, it still serves as an appropriate first choice in uncomplicated urinary tract infection caused by vancomycin-resistant Enterococcus sp.
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Affiliation(s)
- Liam Toner
- Department of Surgery, Urology Unit, University of Melbourne, Melbourne, Australia
| | - Nathan Papa
- Department of Surgery, Urology Unit, University of Melbourne, Melbourne, Australia
| | - Sani H Aliyu
- Department of Microbiology, Addenbrookes' Hospital, Cambridge University, Cambridge, UK
| | - Harveer Dev
- Department of Urology, Addenbrookes' Hospital, Cambridge University, Cambridge, UK
| | - Nathan Lawrentschuk
- Department of Surgery, Urology Unit, University of Melbourne, Melbourne, Australia.; Olivia Newton-John Cancer Research Institute, Austin Health, Melbourne, Australia.; Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Samih Al-Hayek
- Department of Urology, Addenbrookes' Hospital, Cambridge University, Cambridge, UK
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30
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Birgand G, Leroy C, Nerome S, Luong Nguyen LB, Lolom I, Armand-Lefevre L, Ciotti C, Lecorre B, Marcade G, Fihman V, Nicolas-Chanoine MH, Pelat C, Perozziello A, Fantin B, Yazdanpanah Y, Ricard JD, Lucet JC. Costs associated with implementation of a strict policy for controlling spread of highly resistant microorganisms in France. BMJ Open 2016; 6:e009029. [PMID: 26826145 PMCID: PMC4735214 DOI: 10.1136/bmjopen-2015-009029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE To assess costs associated with implementation of a strict 'search and isolate' strategy for controlling highly drug-resistant organisms (HDRO). DESIGN Review of data from 2-year prospective surveillance (01/2012 to 12/2013) of HDRO. SETTING Three university hospitals located in northern Paris. METHODS Episodes were defined as single cases or outbreaks of glycopeptide-resistant enterococci (GRE) or carbapenemase-producing Enterobacteriacae (CPE) colonisation. Costs were related to staff reinforcement, costs of screening cultures, contact precautions and interruption of new admissions. Univariate analysis, along with simple and multiple linear regression analyses, was conducted to determine variables associated with cost of HDRO management. RESULTS Overall, 41 consecutive episodes were included, 28 single cases and 13 outbreaks. The cost (mean ± SD) associated with management of a single case identified within and/or 48 h after admission was €4443 ± 11,552 and €11,445 ± 15,743, respectively (p<0.01). In an outbreak, the total cost varied from €14,864 ± 17,734 for an episode with one secondary case (€7432 ± 8867 per case) to €136,525 ± 151,231 (€12,845 ± 5129 per case) when more than one secondary case occurred. In episodes of single cases, contact precautions and microbiological analyses represented 51% and 30% of overall cost, respectively. In outbreaks, cost related to interruption of new admissions represented 77-94% of total costs, and had the greatest financial impact (R(2)=0.98, p<0.01). CONCLUSIONS In HDRO episodes occurring at three university hospitals, interruption of new admissions constituted the most costly measure in an outbreak situation.
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Affiliation(s)
- Gabriel Birgand
- INSERM, IAME, UMR 1137, Paris, France
- Univ Paris Diderot, IAME, UMR 1137, Sorbonne Paris Cité, Paris, France
- Infection Control Unit, AP-HP, Hôpital Bichat-Claude Bernard, Paris, France
| | - Christophe Leroy
- Emergency Department, AP-HP, Hôpital Louis Mourier, Colombes, France
| | - Simone Nerome
- Infection Control Unit, AP-HP, Hôpital Beaujon, Clichy, France
| | | | - Isabelle Lolom
- Infection Control Unit, AP-HP, Hôpital Bichat-Claude Bernard, Paris, France
| | | | - Céline Ciotti
- Infection Control Unit, AP-HP, Hôpital Beaujon, Clichy, France
| | - Bertrand Lecorre
- Internal Medicine Department, AP-HP, Hôpital Beaujon, Clichy, France
| | - Géraldine Marcade
- Infection Control Unit, AP-HP, Hôpital Louis Mourier, Colombes, France
| | - Vincent Fihman
- Infection Control Unit, AP-HP, Hôpital Louis Mourier, Colombes, France
| | | | - Camille Pelat
- INSERM, IAME, UMR 1137, Paris, France
- Univ Paris Diderot, IAME, UMR 1137, Sorbonne Paris Cité, Paris, France
| | - Anne Perozziello
- AP-HP, Hôpital Bichat-Claude Bernard, Medical Information Systems Program (PMSI), Paris, France
| | - Bruno Fantin
- Internal Medicine Department, AP-HP, Hôpital Beaujon, Clichy, France
| | - Yazdan Yazdanpanah
- INSERM, IAME, UMR 1137, Paris, France
- Univ Paris Diderot, IAME, UMR 1137, Sorbonne Paris Cité, Paris, France
- Infectious Diseases Department, AP-HP, Hôpital Bichat-Claude Bernard, Paris, France
| | - Jean-Damien Ricard
- INSERM, IAME, UMR 1137, Paris, France
- Univ Paris Diderot, IAME, UMR 1137, Sorbonne Paris Cité, Paris, France
- Intensive Care Unit, AP-HP, Hôpital Louis Mourier, Colombes, France
| | - Jean-Christophe Lucet
- INSERM, IAME, UMR 1137, Paris, France
- Univ Paris Diderot, IAME, UMR 1137, Sorbonne Paris Cité, Paris, France
- Infection Control Unit, AP-HP, Hôpital Bichat-Claude Bernard, Paris, France
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31
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Humphreys H. Controlling the spread of vancomycin-resistant enterococci. Is active screening worthwhile? J Hosp Infect 2014; 88:191-8. [PMID: 25310998 DOI: 10.1016/j.jhin.2014.09.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 09/10/2014] [Indexed: 11/28/2022]
Abstract
Vancomycin-resistant enterococci (VRE) are significant causes of healthcare-acquired infections. Active screening, i.e. the use of rectal swabs or faeces to detect carriage in at-risk patients, has been described as contributing to prevention by identifying previously unrecognized cases. The aim of this review was to determine the impact of screening for VRE on prevention and control, its cost-effectiveness and recent approaches to laboratory detection. A review of published studies in English from 2000 was undertaken. Whereas various guidelines were accessed and reviewed, the emphasis was on original reports and studies. It was determined that the patient groups who may need screening are those admitted to critical care units, haematology/oncology and transplant wards, patients on chronic dialysis and patients admitted to acute hospitals from long-stay units. Active screening is associated with reduced VRE colonization and infection and cost savings in some studies, even if these fall short of randomized trials. Selective media increase sensitivity and reduce the time to detection but the role of molecular methods remains to be determined. In conclusion, active screening contributes to VRE prevention probably by heightening awareness of control measures, including isolation. However, further studies are required to: better define high-risk groups that warrant screening; quantify the clinical and economic benefit; and determine the optimal laboratory methods in a range of different patient populations.
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Affiliation(s)
- H Humphreys
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland and Beaumont Hospital, Dublin, Ireland.
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Daroukh A, Delaunay C, Bigot S, Ceci JM, Siddhoun N, Bukreyeva I, Raisin J, Porcheret H, Maisonneuve L, Bouldouyre MA. Characteristics and costs of carbapenemase-producing enterobacteria carriers (2012/2013). Med Mal Infect 2014; 44:321-6. [PMID: 25022890 DOI: 10.1016/j.medmal.2014.06.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 04/25/2014] [Accepted: 06/02/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVES We had for aim to determine the characteristics of carbapenemase-producing enterobacteria (CPE) carriers and to assess the economic impact of isolation measures leading to loss of activity (closed beds, prolonged hospital stays) and additional personnel hours. PATIENTS AND METHODS We conducted a retrospective study for 2years (2012/2013), in a French general hospital, focusing on CPE carriers with clinical case description. The costs were estimated by comparing the activity of concerned units (excluding the ICU) during periods with CPE carriers or contacts, during the same periods of the year (n-1), plus additional hours and rectal swabs. RESULTS Sixteen EPC carriers were identified: 10 men and 6 women, 65±10years of age. Seven patients acquired EPC in hospital during 2 outbreaks in 2012. Four patients presented with an infection (peritonitis, catheter infection, and 2 cases of obstructive pyelonephritis) with a favorable outcome. The median length of stay was 21days [4,150]. Six patients died, 1 death was indirectly due to CPE because of inappropriate empiric antibiotic therapy. A decrease in activity was observed compared to the previous year with an estimated 547,303€ loss. The 1779 additional hours cost 63,870€, and 716 screening samples cost 30,931€. The total additional cost was estimated at 642,104€ for the institution. CONCLUSIONS Specialized teams for CPE carriers and isolation of contact patients, required to avoid/control epidemics, have an important additional cost. An appreciation of their support is needed, as well as participation of rehabilitation units.
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Affiliation(s)
- A Daroukh
- Unité d'hygiène et d'épidémiologie, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - C Delaunay
- Analyse de gestion, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - S Bigot
- Direction des ressources humaines, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - J M Ceci
- Département d'informatique médicale, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - N Siddhoun
- Analyse de gestion, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - I Bukreyeva
- Service de médecine interne et maladies infectieuses, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - J Raisin
- Unité d'hygiène et d'épidémiologie, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - H Porcheret
- Biologie médicale, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - L Maisonneuve
- Biologie médicale, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France
| | - M A Bouldouyre
- Service de médecine interne et maladies infectieuses, centre hospitalier intercommunal Robert-Ballanger, 93603 Aulnay-sous-Bois, France.
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Financial impact of health care-associated infections: When money talks. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2014; 25:71-4. [PMID: 24855473 DOI: 10.1155/2014/279794] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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