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Lodise TP, Yucel E, Obi EN, Watanabe AH, Nathanson BH. Incidence of acute kidney injury (AKI) and its impact on patient outcomes among adult hospitalized patients with carbapenem-resistant Gram-negative infections who received targeted treatment with a newer β-lactam or β-lactam/β-lactamase inhibitor-, polymyxin- or aminoglycoside-containing regimen. J Antimicrob Chemother 2024; 79:82-95. [PMID: 37962080 PMCID: PMC10761276 DOI: 10.1093/jac/dkad351] [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: 07/18/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Limited comparative data exist on acute kidney injury (AKI) risk and AKI-associated outcomes in hospitalized patients with carbapenem-resistant Gram-negative infections (CR-GNIs) treated with a newer β-lactam/β-lactam-β-lactamase inhibitor (BL/BL-BLI)-, polymyxin (PB)- or aminoglycoside (AG)-containing regimen. This study quantified the risk of AKI and AKI-related outcomes among patients with CR-GNIs treated with a newer BL/BL-BLI-, PB- or AG-containing regimen. METHODS A multicentre, retrospective, observational study was performed (2016-20). The study included adult hospitalized patients with (i) baseline estimated glomerular filtration rates ≥30 mL/min/1.73 m2; (ii) CR-GN pneumonia, complicated urinary tract infection or bloodstream infection; and (iii) receipt of newer BL/BL-BLI, PG or AG within 7 days of index CR-GN culture for ≥3 days. Outcomes included AKI, in-hospital mortality and hospital costs. RESULTS The study included 750 patients and most (48%) received a newer BL/BL-BLI. The median (IQR) treatment duration was 8 (5-11), 5 (4-8) and 7 (4-8) days in the newer BL/BL-BLI group, AG group and PB group, respectively. The PB group had the highest adjusted AKI incidence (95% CI) (PB: 25.1% (15.6%-34.6%) versus AG: 8.9% (5.7%-12.2%) versus newer BL/BL-BLI: 11.9% (8.1%-15.7%); P = 0.001). Patients with AKI had significantly higher in-hospital mortality (AKI: 18.5% versus 'No AKI': 5.6%; P = 0.001) and mean hospital costs (AKI: $49 192 versus 'No AKI': $38,763; P = 0.043). CONCLUSIONS The AKI incidence was highest among PB patients and patients with AKI had worse outcomes. Healthcare systems should consider minimizing the use of antibiotics that augment AKI risk as a measure to improve outcomes in patients with CR-GNIs.
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Affiliation(s)
- Thomas P Lodise
- Albany College of Pharmacy and Health Sciences, Department of Pharmacy Practice, 106 New Scotland Avenue, Albany, NY, USA
| | - Emre Yucel
- Merck & Co., Inc., 2025 E Scott Ave, Rahway, NJ, USA
| | - Engels N Obi
- Merck & Co., Inc., 2025 E Scott Ave, Rahway, NJ, USA
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Corona A, De Santis V, Agarossi A, Prete A, Cattaneo D, Tomasini G, Bonetti G, Patroni A, Latronico N. Antibiotic Therapy Strategies for Treating Gram-Negative Severe Infections in the Critically Ill: A Narrative Review. Antibiotics (Basel) 2023; 12:1262. [PMID: 37627683 PMCID: PMC10451333 DOI: 10.3390/antibiotics12081262] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 07/04/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
INTRODUCTION Not enough data exist to inform the optimal duration and type of antimicrobial therapy against GN infections in critically ill patients. METHODS Narrative review based on a literature search through PubMed and Cochrane using the following keywords: "multi-drug resistant (MDR)", "extensively drug resistant (XDR)", "pan-drug-resistant (PDR)", "difficult-to-treat (DTR) Gram-negative infection," "antibiotic duration therapy", "antibiotic combination therapy" "antibiotic monotherapy" "Gram-negative bacteremia", "Gram-negative pneumonia", and "Gram-negative intra-abdominal infection". RESULTS Current literature data suggest adopting longer (≥10-14 days) courses of synergistic combination therapy due to the high global prevalence of ESBL-producing (45-50%), MDR (35%), XDR (15-20%), PDR (5.9-6.2%), and carbapenemases (CP)/metallo-β-lactamases (MBL)-producing (12.5-20%) Gram-negative (GN) microorganisms (i.e., Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumanii). On the other hand, shorter courses (≤5-7 days) of monotherapy should be limited to treating infections caused by GN with higher (≥3 antibiotic classes) antibiotic susceptibility. A general approach should be based on (i) third or further generation cephalosporins ± quinolones/aminoglycosides in the case of MDR-GN; (ii) carbapenems ± fosfomycin/aminoglycosides for extended-spectrum β-lactamases (ESBLs); and (iii) the association of old drugs with new expanded-spectrum β-lactamase inhibitors for XDR, PDR, and CP microorganisms. Therapeutic drug monitoring (TDM) in combination with minimum inhibitory concentration (MIC), bactericidal vs. bacteriostatic antibiotics, and the presence of resistance risk predictors (linked to patient, antibiotic, and microorganism) should represent variables affecting the antimicrobial strategies for treating GN infections. CONCLUSIONS Despite the strategies of therapy described in the results, clinicians must remember that all treatment decisions are dynamic, requiring frequent reassessments depending on both the clinical and microbiological responses of the patient.
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Affiliation(s)
- Alberto Corona
- Accident, Emergency and ICU Department and Surgical Theatre, ASST Valcamonica, University of Brescia, 25043 Breno, Italy
| | | | - Andrea Agarossi
- Accident, Emergency and ICU Department, ASST Santi Paolo Carlo, 20142 Milan, Italy
| | - Anna Prete
- AUSL Romagna, Umberto I Hospital, 48022 Lugo, Italy
| | - Dario Cattaneo
- Unit of Clinical Pharmacology, ASST Fatebenefratelli Sacco University Hospital, Via GB Grassi 74, 20157 Milan, Italy
| | - Giacomina Tomasini
- Urgency and Emergency Surgery and Medicine Division ASST Valcamonica, 25123 Brescia, Italy
| | - Graziella Bonetti
- Clinical Pathology and Microbiology Laboratory, ASST Valcamonica, 25123 Brescia, Italy
| | - Andrea Patroni
- Medical Directorate, Infection Control Unit, ASST Valcamonica, 25123 Brescia, Italy
| | - Nicola Latronico
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
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Liu LP, Lin QS, Yang WY, Chen XJ, Liu F, Chen X, Ren YY, Ruan M, Chen YM, Zhang L, Zou Y, Guo Y, Zhu XF. High risk of bloodstream infection of carbapenem-resistant enterobacteriaceae carriers in neutropenic children with hematological diseases. Antimicrob Resist Infect Control 2023; 12:66. [PMID: 37422680 PMCID: PMC10329308 DOI: 10.1186/s13756-023-01269-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 06/20/2023] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND Neutropenic children with hematological diseases were associated with higher morbidity of carbapenem-resistant enterobacteriaceae (CRE) blood-stream infection (BSI) or colonization. But it was still murky regarding clinical characteristics, antimicrobial susceptibility, and outcomes of CRE-BSI in these patients. We aimed to identify the potential risk factors for subsequent bacteremia and clinical outcome caused by CRE-BSI. METHODS Between 2008 and 2020, 2,465 consecutive neutropenic children were enrolled. The incidence and characteristics of CRE-BSI were explored in CRE-colonizers versus non-colonizers. Survival analysis was performed and risk factors for CRE-BSI and 30-day mortality were evaluated. RESULTS CRE-carriers were identified in 59/2465 (2.39%) neutropenic children and19/59 (32.2%) developed CRE-BSI, while 12/2406 (0.5%) of non-carriers developed CRE-BSI (P < 0.001). The 30-day survival probability was significantly lower in patients with CRE-BSI than in non-BSI (73.9% vs. 94.9%, P = 0.050). Moreover, the 30-day survival probability of patients with CRE-BSI was also poorer in CRE-carriers versus non-carriers (49.7% vs. 91.7%, P = 0.048). Tigecycline and amikacin exhibited satisfactory antimicrobial activity against all isolated strains. Fluoroquinolone sensitivity was lower in E. coli (26.3%) strains versus satisfactory susceptibility of E. cloacae and other CRE-strains (91.2%). CRE-BSI accompanying intestinal mucosal damage were independent risk factors for 30-day survival probability (both P < 0.05), while combined antibiotic therapy and longer duration of neutropenia were more prone to developed CRE-BSI (P < 0.05). CONCLUSION CRE-colonizers were prone to subsequent BSI and CRE-BSI was regarded as an independent predictor predisposing to high mortality in neutropenic children. Moreover, individualized antimicrobial therapy should be adopted due to different features of patients with separate CRE strains.
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Affiliation(s)
- Li-Peng Liu
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Qing-Song Lin
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Wen-Yu Yang
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Xiao-Juan Chen
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Fang Liu
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Xia Chen
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Yuan-Yuan Ren
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Min Ruan
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Yu-Mei Chen
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Li Zhang
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Yao Zou
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China
- Tianjin Institutes of Health Science, Tianjin, 301600, China
| | - Ye Guo
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China.
- Tianjin Institutes of Health Science, Tianjin, 301600, China.
| | - Xiao-Fan Zhu
- Division of Pediatric Blood Diseases Center, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, 288 Nanjing Road, Tianjin, 300020, China.
- Tianjin Institutes of Health Science, Tianjin, 301600, China.
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Liu P, Mai Y, Yuan W, Xie L, Ma W, Liu J, Xu L, Yang J, Wang P, Wang H. Risk Factors for Mortality and Antimicrobial Regimens in Pediatric Intensive Care Unit Patients with Carbapenem-Resistant Enterobacteriaceae Infections: A Six-Year Retrospective Study. Infect Drug Resist 2022; 15:7307-7316. [DOI: 10.2147/idr.s394283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
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Loest D, Uhland FC, Young KM, Li XZ, Mulvey MR, Reid-Smith R, Sherk LM, Carson CA. Carbapenem-resistant Escherichia coli from shrimp and salmon available for purchase by consumers in Canada: a risk profile using the Codex framework. Epidemiol Infect 2022; 150:e148. [PMID: 35968840 PMCID: PMC9386791 DOI: 10.1017/s0950268822001030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 04/28/2022] [Accepted: 05/21/2022] [Indexed: 11/05/2022] Open
Abstract
Resistance to carbapenems in human pathogens is a growing clinical and public health concern. The carbapenems are in an antimicrobial class considered last-resort, they are used to treat human infections caused by multidrug-resistant Enterobacterales, and they are classified by the World Health Organization as 'High Priority Critically Important Antimicrobials'. The presence of carbapenem-resistant Enterobacterales (CREs) of animal-origin is of concern because targeted studies of Canadian retail seafood revealed the presence of carbapenem resistance in a small number of Enterobacterales isolates. To further investigate this issue, a risk profile was developed examining shrimp and salmon, the two most important seafood commodities consumed by Canadians and Escherichia coli, a member of the Enterobacterales order. Carbapenem-resistant E. coli (CREc) isolates have been identified in shrimp and other seafood products. Although carbapenem use in aquaculture has not been reported, several classes of antimicrobials are utilised globally and co-selection of antimicrobial-resistant microorganisms in an aquaculture setting is also of concern. CREs have been identified in retail seafood purchased in Canada and are currently thought to be uncommon. However, data concerning CRE or CREc occurrence and distribution in seafood are limited, and argue for implementation of ongoing or periodic surveillance.
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Affiliation(s)
- Daleen Loest
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - F. Carl Uhland
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Kaitlin M. Young
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Xian-Zhi Li
- Veterinary Drugs Directorate, Health Products and Food Branch, Health Canada, Ottawa, Ontario, Canada
| | - Michael R. Mulvey
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Richard Reid-Smith
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Lauren M. Sherk
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Carolee A. Carson
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Guelph, Ontario, Canada
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Sexton ME, Bower C, Jacob JT. Risk factors for isolation of carbapenem-resistant Enterobacterales from normally sterile sites and urine. Am J Infect Control 2021; 50:929-933. [PMID: 34958855 DOI: 10.1016/j.ajic.2021.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND Invasive infections caused by carbapenem-resistant Enterobacterales (CRE) are of significant concern in health care settings. We assessed risk factors for a positive CRE culture from a sterile site (invasive infection) compared to isolation from urine in a large patient cohort in Atlanta from August 2011 to December 2015. METHODS CRE cases required isolation, from urine or a normally-sterile site, of E. coli, Klebsiella spp., or Enterobacter spp. that were carbapenem-nonsusceptible (excluding ertapenem) and resistant to all third-generation cephalosporins tested. Risk factors were compared between patients with invasive and urinary infections using multivariable logistic regression. RESULTS A total of 576 patients had at least 1 incident case of CRE, with 91 (16%) having an invasive infection. In multivariable analysis, the presence of a central venous catheter (OR 3.58; 95% CI: 2.06-6.23) or other indwelling device (OR 2.34; 95% CI: 1.35-4.06), and recent surgery within the last year (OR 1.81; 95% CI: 1.08-3.05) were associated with invasive infection when compared to urinary infection. DISCUSSION Health care exposures and devices were associated with invasive infections in patients with CRE, suggesting that targeting indwelling catheters, including preventing unwarranted insertion or encouraging rapid removal, may be a potential infection control intervention. CONCLUSIONS Future infection prevention efforts to decrease CRE cases in health care settings should focus on minimizing unnecessary devices.
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Affiliation(s)
- Mary Elizabeth Sexton
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA.
| | - Christopher Bower
- Georgia Emerging Infections Program, Atlanta, GA; Atlanta Veterans Affairs Medical Center, Decatur, GA; Foundation for Atlanta Veterans Education and Research, Decatur, GA
| | - Jesse T Jacob
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA; Georgia Emerging Infections Program, Atlanta, GA
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Cost-effectiveness of carbapenem-resistant Enterobacteriaceae (CRE) surveillance in Maryland. Infect Control Hosp Epidemiol 2021; 43:1162-1170. [PMID: 34674791 PMCID: PMC9023597 DOI: 10.1017/ice.2021.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Objective: We analyzed the efficacy, cost, and cost-effectiveness of predictive decision-support systems based on surveillance interventions to reduce the spread of carbapenem-resistant Enterobacteriaceae (CRE). Design: We developed a computational model that included patient movement between acute-care hospitals (ACHs), long-term care facilities (LTCFs), and communities to simulate the transmission and epidemiology of CRE. A comparative cost-effectiveness analysis was conducted on several surveillance strategies to detect asymptomatic CRE colonization, which included screening in ICUs at select or all hospitals, a statewide registry, or a combination of hospital screening and a statewide registry. Setting: We investigated 51 ACHs, 222 LTCFs, and skilled nursing facilities, and 464 ZIP codes in the state of Maryland. Patients or participants: The model was informed using 2013–2016 patient-mix data from the Maryland Health Services Cost Review Commission. This model included all patients that were admitted to an ACH. Results: On average, the implementation of a statewide CRE registry reduced annual CRE infections by 6.3% (18.8 cases). Policies of screening in select or all ICUs without a statewide registry had no significant impact on the incidence of CRE infections. Predictive algorithms, which identified any high-risk patient, reduced colonization incidence by an average of 1.2% (3.7 cases) without a registry and 7.0% (20.9 cases) with a registry. Implementation of the registry was estimated to save $572,000 statewide in averted infections per year. Conclusions: Although hospital-level surveillance provided minimal reductions in CRE infections, regional coordination with a statewide registry of CRE patients reduced infections and was cost-effective.
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Lodise TP, Puzniak LA, Chen LH, Tian Y, Wei R, Im TM, Tartof SY. Outcomes of adult patients in the intensive care unit with Pseudomonas aeruginosa pneumonia who received an active anti-pseudomonal β-lactam: Does "S" equal success in the presence of resistance to other anti-pseudomonal β-lactams? Pharmacotherapy 2021; 41:658-667. [PMID: 34097763 PMCID: PMC8457199 DOI: 10.1002/phar.2600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 11/08/2022]
Abstract
STUDY OBJECTIVES The most commonly prescribed antibiotics for patients with hospital-acquired bacterial pneumonia (HABP) and ventilator-associated bacterial pneumonia (VABP) due to Pseudomonas aeruginosa are the conventional anti-pseudomonal β-lactams (APBLs) (ie, ceftazidime, cefepime, meropenem, or piperacillin-tazobactam). Similar resistance mechanisms in P. aeruginosa affect the APBLs, and it is unclear if resistance to one APBL can affect the effectiveness of other APBLs. This exploratory, hypothesis-generating analysis evaluates the impact of APBL resistance among patients in the intensive care unit (ICU) with P. aeruginosa HABP/VABP who initially receive a microbiologically active APBL. DESIGN A retrospective cohort [GJ1] [LT2] study. SETTING Kaiser Permanente Southern California members (01/01/2011-12/31/2017). PATIENTS The study included adult patients admitted to the ICU with a monomicrobial P. aeruginosa HABP/VABP who received a microbiologically active APBL within 2 days of index P. aeruginosa respiratory culture. INTERVENTION Patients were stratified by presence of resistance to APBL on index P. aeruginosa (0 vs. ≥1 resistant APBL). MEASUREMENTS Primary outcomes were 30-day mortality and discharge to home. MAIN RESULTS Overall, 553 patients were included. Thirty-day mortality was 28%, and 32% of patients were discharged home. Eighty-eight patients (16%) had a P. aeruginosa HABP/VABP that was resistant to ≥1 APBL (other than active empiric treatment). Relative to patients with no APBL resistance, patients with resistance to ≥1 APBL had a higher 30-day mortality (adjusted odds ratio (aOR) [95% confidence interval (CI)]: 1.65 [1.02-2.66]) and were less likely to be discharged home (adjusted hazard ratio (aHR) [95% CI]: 0.50 [0.29-0.85]). CONCLUSION Further study is needed, but this exploratory analysis suggests that the full APBL susceptibility profile should be considered when selecting therapy for patients with P. aeruginosa HABP/VABP.
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Affiliation(s)
- Thomas P Lodise
- Abany College of Pharmacy Health Sciences, Albany, New York, USA
| | | | - Lie H Chen
- Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, California, USA
| | - Yun Tian
- Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, California, USA
| | - Rong Wei
- Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, California, USA
| | - Theresa M Im
- Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, California, USA
| | - Sara Y Tartof
- Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, California, USA
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Xu Q, Pan F, Sun Y, Wang C, Shi Y, Zhang T, Yu F, Zhang H. Fecal Carriage and Molecular Epidemiology of Carbapenem-Resistant Enterobacteriaceae from Inpatient Children in a Pediatric Hospital of Shanghai. Infect Drug Resist 2020; 13:4405-4415. [PMID: 33328745 PMCID: PMC7735787 DOI: 10.2147/idr.s275549] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022] Open
Abstract
Purpose To determine the epidemiology characteristics of intestinal colonization of carbapenem-resistant Enterobacteriaceae (CRE) among inpatients in a pediatric hospital in China. Methods A retrospective study was conducted from April to December 2019. Medical records were reviewed to extract the clinical information. Antimicrobial susceptibility was performed by broth microdilution method. Drug resistance determinants and plasmid types were analyzed using polymerase chain reaction (PCR) assays. Multilocus sequence typing (MLST) and Enterobacterial repetitive intergenic consensus sequences PCR (ERIC-PCR) were employed to determine the genetic relationships between strains. Results A total of 90 CRE strains were isolated, with a fecal carriage rate of 8.6% (90/1052), and mainly distributed in E. aerogenes (n=30), K. pneumoniae (n=25) and E. coli (n=23). More than 50% of CRE colonizers had a history of invasive procedures and antibiotic exposures. As high as 91.1% (82/90) of CRE isolates carried carbapenemase genes, with blaNDM-5 (n=56) being the most common, and mainly found in E. aerogenes (51.8%, 29/56) and E. coli (32.1%, 18/56) isolates, which primarily belonged to ST4 (100%, 29/29) and ST692 (55.6%, 10/18), respectively. Followed by blaKPC-2 (n=12), and all found in K. pneumoniae ST11 isolates. Other carbapenemase genes including blaNDM-1, blaIMP-4 and blaIMP-26. Meanwhile, ESBL genes (blaCTX-M, blaTEM-1 and blaSHV) and AmpC genes (blaDHA-1 and blaEBC) were also detected. All CRE isolates showed high resistance to cephalosporins and carbapenemases (97.8%-100.0%) but remained susceptible to tigecycline (98.9%). IncX3 was a major plasmid type in NDM-containing strains (91.3%), and 91.7% of KPC-2-producing K. pneumoniae harboring IncFII and IncFIB plasmids. The ERIC-PCR revealed that several strains with identical STs were genetically similar. Conclusion This study revealed a major intestinal colonization of ST4 NDM-5 E. aerogenes, ST11 KPC-2 K. pneumoniae and ST692 NDM-5 E. coli strains among inpatients in a pediatric hospital. Infection control measures should be implemented immediately to prevent the spread of these strains in clinical settings.
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Affiliation(s)
- Qi Xu
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Fen Pan
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Yan Sun
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Chun Wang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Yingying Shi
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Tiandong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Fangyuan Yu
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China
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Campanella TA, Gallagher JC. A Clinical Review and Critical Evaluation of Imipenem-Relebactam: Evidence to Date. Infect Drug Resist 2020; 13:4297-4308. [PMID: 33268997 PMCID: PMC7701153 DOI: 10.2147/idr.s224228] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/03/2020] [Indexed: 12/11/2022] Open
Abstract
Imipenem-relebactam (I-R) is a novel beta-lactam/beta-lactamase inhibitor combination given with cilastatin. It is indicated for the treatment of complicated urinary tract infections, complicated intra-abdominal infections, and hospital-acquired or ventilator-associated bacterial pneumonia. A literature search was completed to evaluate the evidence to date of I-R. I-R has in vitro activity against multidrug-resistant organisms including carbapenem-resistant Pseudomonas aeruginosa and extended-spectrum beta-lactamase and carbapenem-resistant Enterobacterales. It was granted FDA approval following the promising results of two phase II clinical trials in patients with complicated urinary tract infections and complicated intra-abdominal infections. The most common adverse drug events associated with I-R were nausea (6%), diarrhea (6%), and headache (4%). I-R is a new beta-lactam/beta-lactamase inhibitor combination that will be most likely used for patients with multidrug-resistant gram-negative infections in which there are limited or no available alternative treatment options.
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Affiliation(s)
- Toni A Campanella
- Department of Pharmacy, Jefferson Health Northeast, Philadelphia, PA, USA
| | - Jason C Gallagher
- Department of Pharmacy Practice, Temple University, Philadelphia, PA, USA
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11
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Urzedo JE, de Paula Menezes R, Porto JP, Ferreira ML, Gonçalves IR, de Brito CS, Gontijo-Filho PP, Ribas RM. High mortality by nosocomial infections caused by carbapenem-resistant P. aeruginosa in a referral hospital in Brazil: facing the perfect storm. J Med Microbiol 2020; 69:1388-1397. [PMID: 33170119 DOI: 10.1099/jmm.0.001273] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Introduction. Carbapenem-resistant Pseudomonas aeruginosa is responsible for increased patient mortality.Gap Statement. Five and 30 day in-hospital all-cause mortality in patients with P. aeruginosa infections were assessed, followed by evaluations concerning potential correlations between the type III secretion system (TTSS) genotype and the production of metallo-β-lactamase (MBL).Methodology. This assessment comprised a retrospective cohort study including consecutive patients with carbapenem-resistant infections hospitalized in Brazil from January 2009 to June 2019. PCR analyses were performed to determine the presence of TTSS-encoding genes and MBL genes.Results. The 30-day and 5-day mortality rates for 262 patients were 36.6 and 17.9 %, respectively. The unadjusted survival probabilities for up to 5 days were 70.55 % for patients presenting exoU-positive isolates and 86 % for those presenting exo-negative isolates. The use of urinary catheters, as well as the presence of comorbidity conditions, secondary bacteremia related to the respiratory tract, were independently associated with death at 5 and 30 days. The exoS gene was detected in 64.8 % of the isolates, the presence of the exoT and exoY genes varied and exoU genes occurred in 19.3 % of the isolates. The exoU genotype was significantly more frequent among multiresistant strains. MBL genes were not detected in 92 % of the isolates.Conclusions. Inappropriate therapy is a crucial factor regarding the worse prognosis among patients with infections caused by multiresistant P. aeruginosa, especially those who died within 5 days of diagnosis, regardless of the genotype associated with TTSS virulence.
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Affiliation(s)
- Jane Eire Urzedo
- Institute of Biomedical Sciences (ICBIM), Laboratory of Molecular Microbiology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Ralciane de Paula Menezes
- Technical School of Health (ESTES), Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Juliana Pena Porto
- Medical College (FAMED), Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Melina Lorraine Ferreira
- Institute of Biomedical Sciences (ICBIM), Laboratory of Molecular Microbiology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Iara Rossi Gonçalves
- Institute of Biomedical Sciences (ICBIM), Laboratory of Molecular Microbiology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Cristiane Silveira de Brito
- Institute of Biomedical Sciences (ICBIM), Laboratory of Molecular Microbiology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Paulo P Gontijo-Filho
- Institute of Biomedical Sciences (ICBIM), Laboratory of Molecular Microbiology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
| | - Rosineide Marques Ribas
- Institute of Biomedical Sciences (ICBIM), Laboratory of Molecular Microbiology, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil
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12
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Adler A, Katz DE, Marchaim D. The Continuing Plague of Extended-Spectrum β-Lactamase Producing Enterbacterales Infections: An Update. Infect Dis Clin North Am 2020; 34:677-708. [PMID: 33011052 DOI: 10.1016/j.idc.2020.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Antimicrobial resistance is a common iatrogenic complication of modern life and medical care. One of the most demonstrative examples is the exponential increase in the incidence of extended-spectrum β-lactamases (ESBLs) production among Enterobacteriaceae, that is, the most common human pathogens outside of the hospital setting. Infections resulting from ESBL-producing bacteria are associated with devastating outcomes, now affecting even previously healthy individuals. This poses an enormous burden and threat to public health. This article aims to narrate the evolving epidemiology of ESBL infections and highlights current challenges in terms of management and prevention of these common infections.
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Affiliation(s)
- Amos Adler
- Clinical Microbiology Laboratory, Tel-Aviv Sourasky Medical Center, 6 Weizmann Street, Tel-Aviv 6423906 Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - David E Katz
- Division of Internal Medicine, Shaare Zedek Medical Center, 12 Shmuel Bait Street, Jerusalem 9103102, Israel
| | - Dror Marchaim
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Unit of Infection Control, Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel.
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13
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Gu B, Bi R, Cao X, Qian H, Hu R, Ma P. Clonal dissemination of KPC-2-producing Klebsiella pneumoniae ST11 and ST48 clone among multiple departments in a tertiary teaching hospital in Jiangsu Province, China. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:716. [PMID: 32042732 DOI: 10.21037/atm.2019.12.01] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background The world-wide prevalence of carbapenem-resistant Klebsiella pneumoniae (CRKP) poses a threat to the public health. The objective of this study was to determine the epidemiological and molecular patterns of KPC-producing Klebsiella pneumoniae (K. pneumoniae) clinical isolates. Methods In this study, a total of 82 non-duplicated CRKP isolates were analyzed for the prevalence of resistant determinants including carbapenemase, extended spectrum β-lactamase (ESBLs), and AmpC as well as integrons and cassette regions by polymerase chain reaction (PCR) and DNA sequencing. The genetic relatedness was investigated by pulsed field gel electrophoresis (PFGE) and multi-locus sequencing typing (MLST). Results Overall, bla KPC-2 (n=75) was the predominant carbapenemase gene, followed by high prevalence of bla SHV (92.7%) and bla CTX-M (90.2%). PFGE and MLST analysis revealed that 65 out of 68 KPC-2-producing CRKP belonged to the ST11 clone and were distributed mainly in the department of neurology ICU. Moreover, first report on clonal dissemination of KPC-2-producing CRKP ST48 clone and NDM-5-producing CRKP ST337 clone was also identified. Class I integron were detected in 17 (20.7%) of 82 isolates with aadA2 being the most common cassette. And a novel cassette array of integron, aac(6')-II-bla CARB/PSE-1 was identified. Conclusions All in all, KPC-2-producing CRKP ST11 and ST48 clone were widely disseminated in multiple departments of our hospital, which triggers the need for active surveillance and implementation of infection control measures.
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Affiliation(s)
- Bing Gu
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China.,Medical Technology Institute of Xuzhou Medical University, Xuzhou 221004, China
| | - Ruru Bi
- Medical Technology Institute of Xuzhou Medical University, Xuzhou 221004, China.,Department of Laboratory Medicine, Suzhou Science and Technology Town Hospital, Suzhou 215163, China
| | - Xiaoli Cao
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Huimin Qian
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Renjing Hu
- Department of Laboratory Medicine, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi 214000, China
| | - Ping Ma
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China.,Medical Technology Institute of Xuzhou Medical University, Xuzhou 221004, China
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14
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Association between carbapenem-resistant Enterobacteriaceae and death: A systematic review and meta-analysis. Am J Infect Control 2019; 47:1200-1212. [PMID: 31072673 DOI: 10.1016/j.ajic.2019.03.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/16/2019] [Accepted: 03/17/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND Carbapenem-resistant Enterobacteriaceae (CRE) has emerged in health care facilities around the world. Several studies demonstrated data regarding clinical outcomes for CRE infections including death. This systematic review and meta-analysis summarized literature discussing association between CRE and mortality. METHODS A systematic literature review was performed by searching EMBASE, International Pharmaceutical Abstract databases, PubMed, and Scopus and to identify studies that assessed the association between CRE and death published from April 2012 to October 2017. A meta-analysis was performed using a random effect model. Heterogeneity was assessed using the I2-statistic. RESULTS Twenty-one studies were included in this meta-analysis. The underlying populations were moderately heterogeneous (I2 = 60%; P = .01). Pooled risk estimates from 9 studies revealed a significant association between CRE and death (pooled-adjusted odds ratio: 2.85; 95% confidence interval: 1.88, 4.30). The unadjusted variable pooled from 18 studies demonstrated a significant association between CRE and death (pooled-unadjusted odds ratio: 3.73; 95% confidence interval: 2.02, 6.88). DISCUSSION The finding that CRE infection was positively associated with death agreed with the previous meta-analysis of studies published before April 2012. CONCLUSIONS This meta-analysis found that CRE was associated with increased risk of death. Our analysis implies a need for strict infection control measures.
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15
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Resistant Organisms and Their Approach to Management in Clinical and Emergency Care. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2019. [DOI: 10.1007/s40138-019-00184-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Lodise TP, Berger A, Altincatal A, Wang R, Bhagnani T, Gillard P, Bonine NG. Antimicrobial Resistance or Delayed Appropriate Therapy-Does One Influence Outcomes More Than the Other Among Patients With Serious Infections Due to Carbapenem-Resistant Versus Carbapenem-Susceptible Enterobacteriaceae? Open Forum Infect Dis 2019; 6:ofz194. [PMID: 31198817 PMCID: PMC6546203 DOI: 10.1093/ofid/ofz194] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 04/18/2019] [Indexed: 12/20/2022] Open
Abstract
Background The relative contribution of antimicrobial resistance versus delayed appropriate treatment to the clinical and economic burden of Enterobacteriaceae infections is not well understood. Methods Using a large US hospital database, we identified all admissions between July 2011 and September 2014 with evidence of serious Enterobacteriaceae infection. The "index date" was the earliest date on which a culture positive for Enterobacteriaceae was drawn. Infections were classified as carbapenem-resistant (CRE) or carbapenem-susceptible (CSE). Receipt of antimicrobials with activity against all index pathogens on the index date or ≤2 days thereafter was deemed as "timely"; all other instances were "delayed." Associations between CRE status and delayed appropriate therapy on outcomes were estimated using inverse probability weighting and multivariate regression models (ie, logistic model for discharge destination and composite mortality [in-hospital death or discharge to hospice] or generalized linear model for duration of antibiotic therapy, hospital length of stay [LOS], and costs). Results A total of 50 069 patients met selection criteria; 514 patients (1.0%) had CRE. Overall, 67.5% of CSE patients (vs 44.6%, CRE) received timely appropriate therapy (P < .01). Irrespective of CRE status, patients who received delayed appropriate therapy had longer durations of antibiotic therapy and LOS, higher costs, lower likelihood of discharge to home, and greater likelihood of the composite mortality outcome (P for trend < .01). Conclusions Delayed appropriate therapy is a more important driver of outcomes than CRE, although the 2 factors are somewhat synergistic. Better methods of early CRE identification may improve outcomes in this patient population.
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Affiliation(s)
- Thomas P Lodise
- Pharmacy Practice, Albany College of Pharmacy and Health Sciences, Albany, New York
| | - Ariel Berger
- Real-World Evidence, Evidera, Waltham, Massachusetts
| | | | - Rosa Wang
- Real-World Evidence, Evidera, Waltham, Massachusetts
| | | | - Patrick Gillard
- Global Health Outcomes Strategy & Research, Allergan plc, Madison, New Jersey
| | - Nicole G Bonine
- Global Health Outcomes Strategy & Research, Allergan plc, Madison, New Jersey
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17
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ESER F, YILMAZ GR, GÜNER R, HASANOĞLU İ, ÜRKMEZ KORKMAZ FY, AÇIKGÖZ ZC, TAŞYARAN MA. Risk factors for rectal colonization of carbapenem-resistant Enterobacteriaceae in a tertiary care hospital: a case-control study from Turkey. Turk J Med Sci 2019; 49:341-346. [PMID: 30761851 PMCID: PMC7350833 DOI: 10.3906/sag-1810-65] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background/aim This study aimed to evaluate the risk factors of patients colonized with carbapenem-resistant Enterobacteriaceae (CRE). Materials and methods The study was conducted between January 2010 and March 2016. The colonized group consisted of patients who had a CRE strain in their rectal swab cultures, whereas patients with negative rectal surveillance cultures for CRE who were concurrently hospitalized in the same units with the colonized group patients were included in the control group. Results The number of patients in the colonized and the control group was 71 and 120, respectively. Both groups were evaluated for demographic and healthcare-associated characteristics. Isolated microorganisms in rectal surveillance cultures for CRE were Klebsiella pneumoniae (75.5%), Escherichia coli (15.5%), Enterobacter cloacae (4.2%), Klebsiella oxytoca (1.4%), and Klebsiella terrigena (1.4%). The isolates were resistant to imipenem, meropenem, and ertapenem (52.1%, 73.2%, and 100%, respectively). In multivariate analysis, presence of decubitus, colistin usage, glycopeptide usage, and fluoroquinolone usage were found to be independent risk factors for CRE colonization. There was no significant difference between the two groups with regards to mortality (P = 0.070). Conclusion These results are in agreement with the current literature. The findings of this study could be useful for improvement of infection control strategies related to CRE.
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Affiliation(s)
- Fatma ESER
- Department of Infectious Disease and Clinical Microbiology, Ankara Atatürk Training and Research Hospital,Yıldırım Beyazıt University, AnkaraTurkey
- * To whom correspondence should be addressed. E-mail:
| | - Gül Ruhsar YILMAZ
- Department of Infectious Disease and Clinical Microbiology, Ankara Atatürk Training and Research Hospital,Yıldırım Beyazıt University, AnkaraTurkey
| | - Rahmet GÜNER
- Department of Infectious Disease and Clinical Microbiology, Faculty of Medicine, Yıldırım Beyazıt University, AnkaraTurkey
| | - İmran HASANOĞLU
- Department of Infectious Disease and Clinical Microbiology, Faculty of Medicine, Yıldırım Beyazıt University, AnkaraTurkey
| | - Fatma Yekta ÜRKMEZ KORKMAZ
- Department of Infectious Disease and Clinical Microbiology, Faculty of Medicine, Yıldırım Beyazıt University, AnkaraTurkey
| | - Ziya Cibali AÇIKGÖZ
- Department of Clinical Microbiology, Faculty of Medicine, Yıldırım Beyazıt University, AnkaraTurkey
| | - Mehmet Akın TAŞYARAN
- Department of Infectious Disease and Clinical Microbiology, Faculty of Medicine, Yıldırım Beyazıt University, AnkaraTurkey
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18
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Li C, Li Y, Zhao Z, Liu Q, Li B. Treatment options and clinical outcomes for carbapenem-resistant Enterobacteriaceae bloodstream infection in a Chinese university hospital. J Infect Public Health 2018; 12:26-31. [PMID: 30145151 DOI: 10.1016/j.jiph.2018.08.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 06/28/2018] [Accepted: 08/02/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Carbapenem resistant Enterobacteriaceae (CRE) has become a serious public health problem. Limited information is available about the treatment options that physicians used to fight CRE infections and related clinical outcomes in China. The aim of the present study was to explore the treatment options and clinical outcomes of patients with CRE bloodstream infection (BSI) in a Chinese teaching hospital. METHODS A retrospective study was conducted during 2011 to 2015 in one Chinese teaching hospital. Demographic, microbiological and clinical characteristics of enrolled subjects were collected from medical records. Data were analyzed by Kaplan-Meier graphs, log-rank test, and Cox regression. RESULTS A total of 98 inpatients with CRE BSI were enrolled in this study. For empirical therapy, 26 patients (26.5%) received at least one active drug within 48h after the onset of bacteremia. For definitive treatment, 59.2% (49/82) patients received at least one active drug and 40.2% (33/82) patients received therapy with no active drug. The overall 30-day mortality was 53.1% (52/98). Adverse outcome appeared to be more likely among patients with previous carbapenem exposure, neutropenia, severity of septic and time to initiation of BSIs. There was no significant difference in the mortality between the two groups of patients with combination therapy versus monotherapy (p=0.105). Severity of sepsis and neutropenia were identified as independent predictors of mortality. CONCLUSIONS Our study demonstrated a high mortality associated with CRE BSI and a high percentage of inappropriate empirical treatment for CRE BSI patients in a Chinese teaching hospital. Particular attention should be given to the patients with CRE BSI.
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Affiliation(s)
- Chen Li
- Department of Infectious Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, China.
| | - Yi Li
- Department of Clinical Laboratory, Henan Provincial People's Hospital, Zhengzhou, Henan, 450003, China.
| | - Zhichang Zhao
- Department of Pharmacy, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, China.
| | - Qing Liu
- Department of Infectious Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, China.
| | - Bin Li
- Department of Clinical Laboratory, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350004, China.
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19
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Toth DJA, Khader K, Slayton RB, Kallen AJ, Gundlapalli AV, O'Hagan JJ, Fiore AE, Rubin MA, Jernigan JA, Samore MH. The Potential for Interventions in a Long-term Acute Care Hospital to Reduce Transmission of Carbapenem-Resistant Enterobacteriaceae in Affiliated Healthcare Facilities. Clin Infect Dis 2018; 65:581-587. [PMID: 28472233 DOI: 10.1093/cid/cix370] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 04/18/2017] [Indexed: 01/01/2023] Open
Abstract
Background Carbapenem-resistant Enterobacteriaceae (CRE) are high-priority bacterial pathogens targeted for efforts to decrease transmissions and infections in healthcare facilities. Some regions have experienced CRE outbreaks that were likely amplified by frequent transmission in long-term acute care hospitals (LTACHs). Planning and funding of intervention efforts focused on LTACHs is one proposed strategy to contain outbreaks; however, the potential regional benefits of such efforts are unclear. Methods We designed an agent-based simulation model of patients in a regional network of 10 healthcare facilities including 1 LTACH, 3 short-stay acute care hospitals (ACHs), and 6 nursing homes (NHs). The model was calibrated to achieve realistic patient flow and CRE transmission and detection rates. We then simulated the initiation of an entirely LTACH-focused intervention in a previously CRE-free region, including active surveillance for CRE carriers and enhanced isolation of identified carriers. Results When initiating the intervention at the first clinical CRE detection in the LTACH, cumulative CRE transmissions over 5 years across all 10 facilities were reduced by 79%-93% compared to no-intervention simulations. This result was robust to changing assumptions for transmission within non-LTACH facilities and flow of patients from the LTACH. Delaying the intervention until the 20th CRE detection resulted in substantial delays in achieving optimal regional prevalence, while still reducing transmissions by 60%-79% over 5 years. Conclusions Focusing intervention efforts on LTACHs is potentially a highly efficient strategy for reducing CRE transmissions across an entire region, particularly when implemented as early as possible in an emerging outbreak.
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Affiliation(s)
- Damon J A Toth
- Department of Veterans Affairs, Salt Lake City Health Care System, Utah.,Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
| | - Karim Khader
- Department of Veterans Affairs, Salt Lake City Health Care System, Utah.,Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
| | - Rachel B Slayton
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Alexander J Kallen
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Adi V Gundlapalli
- Department of Veterans Affairs, Salt Lake City Health Care System, Utah.,Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
| | - Justin J O'Hagan
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Anthony E Fiore
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Michael A Rubin
- Department of Veterans Affairs, Salt Lake City Health Care System, Utah.,Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
| | - John A Jernigan
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Matthew H Samore
- Department of Veterans Affairs, Salt Lake City Health Care System, Utah.,Department of Internal Medicine, Division of Epidemiology, University of Utah, Salt Lake City
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20
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Livorsi DJ, Chorazy ML, Schweizer ML, Balkenende EC, Blevins AE, Nair R, Samore MH, Nelson RE, Khader K, Perencevich EN. A systematic review of the epidemiology of carbapenem-resistant Enterobacteriaceae in the United States. Antimicrob Resist Infect Control 2018; 7:55. [PMID: 29719718 PMCID: PMC5926528 DOI: 10.1186/s13756-018-0346-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/13/2018] [Indexed: 01/11/2023] Open
Abstract
Background Carbapenem-resistant Enterobacteriaceae (CRE) pose an urgent public health threat in the United States. An important step in planning and monitoring a national response to CRE is understanding its epidemiology and associated outcomes. We conducted a systematic literature review of studies that investigated incidence and outcomes of CRE infection in the US. Methods We performed searches in MEDLINE via Ovid, CDSR, DARE, CENTRAL, NHS EED, Scopus, and Web of Science for articles published from 1/1/2000 to 2/1/2016 about the incidence and outcomes of CRE at US sites. Results Five studies evaluated incidence, but many used differing definitions for cases. Across the entire US population, the reported incidence of CRE was 0.3–2.93 infections per 100,000 person-years. Infection rates were highest in long-term acute-care (LTAC) hospitals. There was insufficient data to assess trends in infection rates over time. Four studies evaluated outcomes. Mortality was higher in CRE patients in some but not all studies. Conclusion While the incidence of CRE infections in the United States remains low on a national level, the incidence is highest in LTACs. Studies assessing outcomes in CRE-infected patients are limited in number, small in size, and have reached conflicting results. Future research should measure a variety of clinical outcomes and adequately adjust for confounders to better assess the full burden of CRE. Electronic supplementary material The online version of this article (10.1186/s13756-018-0346-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daniel J Livorsi
- 1Center for Comprehensive Access Delivery & Research, Iowa City VA Health Care System, Iowa City, USA.,2Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, USA
| | | | - Marin L Schweizer
- 1Center for Comprehensive Access Delivery & Research, Iowa City VA Health Care System, Iowa City, USA.,2Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, USA
| | - Erin C Balkenende
- 1Center for Comprehensive Access Delivery & Research, Iowa City VA Health Care System, Iowa City, USA
| | - Amy E Blevins
- 4Hardin Library for the Health Sciences, University of Iowa, Iowa City, USA.,5Ruth Lilly Medical Library, Indiana University School of Medicine, Indianapolis, Indiana USA
| | - Rajeshwari Nair
- 1Center for Comprehensive Access Delivery & Research, Iowa City VA Health Care System, Iowa City, USA.,2Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, USA
| | - Matthew H Samore
- Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah USA.,7Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah USA
| | - Richard E Nelson
- Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah USA.,7Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah USA
| | - Karim Khader
- Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah USA.,7Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah USA
| | - Eli N Perencevich
- 1Center for Comprehensive Access Delivery & Research, Iowa City VA Health Care System, Iowa City, USA.,2Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, USA
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21
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Liu P, Li X, Luo M, Xu X, Su K, Chen S, Qing Y, Li Y, Qiu J. Risk Factors for Carbapenem-Resistant Klebsiella pneumoniae Infection: A Meta-Analysis. Microb Drug Resist 2018; 24:190-198. [PMID: 28749714 PMCID: PMC5873294 DOI: 10.1089/mdr.2017.0061] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIMS Carbapenem-resistant Klebsiella pneumoniae (CRKP) infection has been rapidly emerging as a life-threatening nosocomial disease in many countries. However, studies on the corresponding risk factors of CRKP infection showed inconsistent results. To resolve these inconsistencies, we conducted a meta-analysis of previous studies on the potential risk factors of CRKP infection. The results of this study could be used to develop CRKP infection prevention strategies. METHODS Relevant works were systematically searched from five electronic databases up to September 2016. Z-test was used to determine the significance of the pooled odds ratios (ORs). ORs and 95% confidence intervals were utilized to compare the risk factors of CRKP infection. RESULTS Sixteen studies that involved 3,627 participants were included in the meta-analysis. We identified the following risk factors that were associated with CRKP infection: (1) longer length of hospital stay (LOS) (OR = 12.92), (2) admission to intensive care unit (ICU) (OR = 2.48), (3) prior hospitalization (OR = 1.85), (4) longer days of ICU stay (OR = 4.58), (5) transplant recipient (OR = 2.01), (6) steroid use (OR = 1.43), (7) central venous catheter use (OR = 2.30), (8) mechanical ventilation (OR = 2.54), (9) presence of tracheostomy (OR = 3.63), (10) parenteral nutrition (OR = 2.38), (11) previous antibiotic use (OR = 3.31), and (12) exposure to carbapenems (OR = 4.01), (13) aminoglycosides (OR = 2.05), (14) glycopeptides (OR = 2.40), (15) quinolones (OR = 2.28), and (16) anti-pseudomonal penicillins (OR = 2.67). CONCLUSIONS Sixteen risk factors including longer LOS, admission to ICU, previous antibiotic use, and exposure to carbapenems were associated with the development of CRKP infection. Identification of modifiable risk factors could play an important role in the prevention of CRKP infection.
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Affiliation(s)
- Pin Liu
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Xuan Li
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Mei Luo
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Xuan Xu
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Kewen Su
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Shuai Chen
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Ying Qing
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Yingli Li
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
| | - Jingfu Qiu
- School of Public Health and Management, Chongqing Medical University , Chongqing, China
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22
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Adler A, Katz DE, Marchaim D. The Continuing Plague of Extended-spectrum β-lactamase-producing Enterobacteriaceae Infections. Infect Dis Clin North Am 2017; 30:347-375. [PMID: 27208763 DOI: 10.1016/j.idc.2016.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Antimicrobial resistance is a common iatrogenic complication of modern life and medical care. One of the most demonstrative examples is the exponential increase in the incidence of extended-spectrum β-lactamases (ESBLs) production among Enterobacteriaceae, which is the most common human pathogens outside of the hospital settings. Infections resulting from ESBL-producing bacteria are associated with devastating outcomes, now affecting even previously healthy individuals. This development poses an enormous burden and threat to public health. This paper aims to narrate the evolving epidemiology of ESBL infections, and highlight current challenges in terms of management and prevention of these common infections.
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Affiliation(s)
- Amos Adler
- Clinical Microbiology Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - David E Katz
- Department of Internal Medicine D, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel
| | - Dror Marchaim
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Division of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin 70300, Israel.
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23
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Freire MP, Oshiro ICVS, Pierrotti LC, Bonazzi PR, de Oliveira LM, Song ATW, Camargo CH, van der Heijden IM, Rossi F, Costa SF, DʼAlbuquerque LAC, Abdala E. Carbapenem-Resistant Enterobacteriaceae Acquired Before Liver Transplantation: Impact on Recipient Outcomes. Transplantation 2017; 101:811-820. [PMID: 28009779 DOI: 10.1097/tp.0000000000001620] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Carbapenem-resistant Enterobacteriaceae (CRE) is an emergent microorganism of infections after liver transplant (LT). The aim of this study was to analyze the risk factors for CRE acquisition and infection after LT. METHODS This was a prospective cohort study involving patients who underwent LT in the 2010 to 2014 period. Surveillance cultures for CRE were collected immediately before LT and weekly thereafter until hospital discharge. RESULTS We analyzed 386 patients undergoing a total of 407 LTs. Before LT, 68 (17.6%) patients tested positive for CRE, 11 (16.2%) of those patients having CRE infection, whereas 119 (30.8%) patients acquired CRE after LT. Post-LT CRE infection was identified in 59 (15.7%) patients: Klebsiella pneumoniae was isolated in 83.2%; surgical site infection was the most common type of infection (46.7%). Multivariate analysis showed that post-LT dialysis was the only risk factor for post-LT CRE acquisition. Eighty-two percent of patients who underwent 3 or more post-LT dialysis sessions and acquired CRE before LT evolved with post-LT CRE infection. Other risk factors for CRE infection were acquisition of CRE post-LT, Model for End-Stage Liver Disease score greater than 32, combined transplantation, and reoperation. Patients who acquired CRE before LT had a high risk of developing CRE infection (P < 0.001). CONCLUSIONS Measures for minimizing that risk, including altering the antibiotic prophylaxis, should be investigated and implemented.
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Affiliation(s)
- Maristela Pinheiro Freire
- 1 Infection Control Team, University of São Paulo School of Medicine Hospital das Clínicas, São Paulo, Brazil. 2 Department of Infectious Diseases, University of São Paulo School of Medicine, São Paulo, Brazil. 3 Liver and Intestinal Transplant Division, Department of Gastroenterology, University of São Paulo School of Medicine, São Paulo, Brazil. 4 Microbiology Research Laboratory-LIM54, University of São Paulo School of Medicine Hospital das Clínicas, São Paulo, Brazil. 5 Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil. 6 Microbiology Laboratory, University of São Paulo School of Medicine Hospital das Clínicas, São Paulo, Brazil
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24
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Richter SS, Marchaim D. Screening for carbapenem-resistant Enterobacteriaceae: Who, When, and How? Virulence 2017; 8:417-426. [PMID: 27813699 PMCID: PMC5477693 DOI: 10.1080/21505594.2016.1255381] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/23/2016] [Accepted: 10/25/2016] [Indexed: 10/20/2022] Open
Abstract
The global spread of carbapenem-resistant Enterobacteriaceae (CRE) has been fostered by the lack of preemptive screening of patients in healthcare facilities that could prevent patient-to-patient transmission. Outbreaks of CRE infections have led some institutions to implement rigorous screening programs, although controlled comparative data are frequently lacking. Resource limitations and uncertainty regarding the optimal approach has kept many facilities from enacting more active routine surveillance policies that could reduce the prevalence of CRE. The ideal population to target for screening, the frequency of testing, and the preferred test method are components of surveillance programs that remain open to debate. This review discusses the rationale for different screening policies in use and the performance characteristics of laboratory methods available to detect CRE carriage.
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Affiliation(s)
- Sandra S. Richter
- Department of Laboratory Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Dror Marchaim
- Division of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
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25
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Surveillance culture for multidrug-resistant gram-negative bacteria: Performance in liver transplant recipients. Am J Infect Control 2017; 45:e40-e44. [PMID: 28254253 DOI: 10.1016/j.ajic.2016.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/13/2016] [Accepted: 12/13/2016] [Indexed: 11/20/2022]
Abstract
BACKGROUND The prevalence of infection with multidrug-resistant gram-negative bacteria (MDR-GNB) after solid-organ transplantation is increasing. Surveillance culture (SC) seems to be an important tool for MDR-GNB control. The goal of this study was to analyze the performance of SC for MDR-GNB among liver transplant (LT) recipients. METHODS This was a prospective cohort study involving patients who underwent LT between November 2009 and November 2011. We screened patients for extended spectrum β-lactamase-producing Escherichia coli, extended spectrum β-lactamase-producing Klebsiella pneumoniae, and carbapenem-resistant Enterobacteriaceae, carbapenem-resistant Pseudomonas aeruginosa (CRPA), and carbapenem-resistant Acinetobacter baumannii (CRAB). We collected SC samples immediately before LT and weekly thereafter, until hospital discharge. Samples were collected from the inguinal-rectal area, axilla, and throat. The performance of SC was evaluated through analysis of its sensitivity, negative predictive value, and accuracy. RESULTS During the study period, 181 patients were evaluated and 4,110 SC samples were collected. The GNB most often identified was CRAB, in 45.9% of patients, followed by CRKP in 40.3%. For all microorganisms, the positivity rate was highest among the inguinal-rectal samples. If only samples collected from this area were considered, the SC would fail to identify 34.9% of the cases of CRAB colonization. The sensitivity of SC for CRKP was 92.5%. The performance of SC was poorest for CRAB (sensitivity, 80.6%). CONCLUSIONS Our data indicate that SC is a sensitive tool to identify LT recipients colonized by MDR-GNB.
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26
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Wang W, Jiang T, Zhang W, Li C, Chen J, Xiang D, Cao K, Qi LW, Li P, Zhu W, Chen W, Chen Y. Predictors of mortality in bloodstream infections caused by multidrug-resistant gram-negative bacteria: 4 years of collection. Am J Infect Control 2017; 45:59-64. [PMID: 27765296 DOI: 10.1016/j.ajic.2016.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/22/2016] [Accepted: 08/22/2016] [Indexed: 11/29/2022]
Abstract
The study was undertaken to describe the profile of patients and the characteristics of all multidrug-resistant gram-negative bacteria (MDR-GNB) and to assess mortality. We examined 138 patients with bloodstream infections (BSIs) caused by MDR-GNB. Clinical characteristics, antibiotic therapy, and in-hospital mortality were analyzed. Survivor and nonsurvivor subgroups were compared to identify predictors of mortality. The in-hospital mortality rate was 25.4%. Univariate analysis revealed that comorbidities and inadequate initial antimicrobial treatment could increase risk of death. In Cox regression analysis, mortality was independently associated with the age (P = .034), hospitalization in an intensive care unit (ICU) (P = .04), invasive procedures (P < .001), and Acute Physiology and Chronic Health Evaluation II scores (P < .001), whereas combination therapy or monotherapy was not associated with mortality (P = .829). Postantibiogram therapy was associated with hospitalization in an ICU (P = .006), Charlson comorbidity index score (P = .003), and inadequate initial antimicrobial treatment (P < .001). MDR-GNB strains and antimicrobial regimens were not the major risk factors of mortality. Inadequate initial antimicrobial treatment, invasive procedures, high Acute Physiology And Chronic Health Evaluation II scores, hospitalization in an ICU, and comorbidities were the important factors responsible for mortality. Although there was no difference between combination therapy and monotherapy in mortality, combined treatment may be more effective than monotherapy for patients in an ICU, with a Charlson comorbidity index score < 4, or inadequate initial antimicrobial treatment.
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27
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Hirai J, Yamagishi Y, Mikamo H. [Progress in Diagnostic Technology and Management of Infectious Diseases. Topics: I. Infection Diseases with Special Concern; 1. Carbapenem-resistant enterobacteriaceae]. ACTA ACUST UNITED AC 2016; 103:2657-65. [PMID: 27522804 DOI: 10.2169/naika.103.2657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Abstract
Carbapenems are the broadest spectrum antimicrobials utilized in the treatment of serious infections since the 1980s. Soon after their introduction, the discovery of carbapenem-resistant Enterobacteriaceae (CRE) was reported in the 1990s. Invasive CRE infections are associated with high mortality and limited treatment options making care for patients with these infections challenging for clinicians. Current practice has reverted back to the use of "older" antimicrobials, such as the polymyxins, tigecycline, and fosfomycin, to combat invasive CRE infections. However, recent approval of ceftazidime-avibactam has added another treatment option to the current antimicrobial armamentarium. Resistance among the "older" agents is still rare but has been reported. Currently, there are numerous agents that are under investigation as well as combination therapy that looks promising in the treatment of CRE infections.
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29
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Previous bloodstream infections due to other pathogens as predictors of carbapenem-resistant Klebsiella pneumoniae bacteraemia in colonized patients: results from a retrospective multicentre study. Eur J Clin Microbiol Infect Dis 2016; 36:663-669. [DOI: 10.1007/s10096-016-2843-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
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30
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Adler A, Friedman ND, Marchaim D. Multidrug-Resistant Gram-Negative Bacilli: Infection Control Implications. Infect Dis Clin North Am 2016; 30:967-997. [PMID: 27660090 DOI: 10.1016/j.idc.2016.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Antimicrobial resistance is a common iatrogenic complication of both modern life and medical care. Certain multidrug resistant and extensively drug resistant Gram-negative organisms pose the biggest challenges to health care today, predominantly owing to a lack of therapeutic options. Containing the spread of these organisms is challenging, and in reality, the application of multiple control measures during an evolving outbreak makes it difficult to measure the relative impact of each measure. This article reviews the usefulness of various infection control measures in containing the spread of multidrug-resistant Gram-negative bacilli.
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Affiliation(s)
- Amos Adler
- Clinical Microbiology Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel; Department of Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | | | - Dror Marchaim
- Department of Medicine, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Division of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin 70300, Israel.
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31
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Wang Q, Zhang Y, Yao X, Xian H, Liu Y, Li H, Chen H, Wang X, Wang R, Zhao C, Cao B, Wang H. Risk factors and clinical outcomes for carbapenem-resistant Enterobacteriaceae nosocomial infections. Eur J Clin Microbiol Infect Dis 2016; 35:1679-89. [PMID: 27401905 DOI: 10.1007/s10096-016-2710-0] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 06/08/2016] [Indexed: 11/28/2022]
Abstract
This study was aimed to determine the risk factors of Carbapenem-resistant Enterobacteriaceae (CRE) nosocomial infections and assess the clinical outcomes. A case-case-control design was used to compare two groups of case patients with control patients from March 2010 to November 2014 in China. Risk factors for the acquisition of CRE infections and clinical outcomes were analyzed by univariable and multivariable analysis. A total of 94 patients with CRE infections, 93 patients with Carbapenem-susceptible Enterobacteriaceae (CSE) infections, and 93 patients with organisms other than Enterobacteriaceae infections were enrolled in this study. Fifty-five isolates were detected as the carbapenemase gene. KPC-2 was the most common carbapenemase (65.5 %, 36/55), followed by NDM-1 (16.4 %, 9/55), IMP-4 (14.5 %, 8/55), NDM-5 (1.8 %, 1/55), and NDM-7 (1.8 %, 1/55). Multivariable analysis implicated previous use of third or fourth generation cephalosporins (odds ratio [OR], 4.557; 95 % confidence interval [CI], 1.971-10.539; P < 0.001) and carbapenems (OR, 4.058; 95 % CI, 1.753-9.397; P = 0.001) as independent risk factors associated with CRE infection. The in-hospital mortality of the CRE group was 57.4 %. In the population of CRE infection, presence of central venous catheters (OR, 4.464; 95 % CI, 1.332-14.925; P = 0.015) and receipt of immunosuppressors (OR, 7.246; 95 % CI, 1.217-43.478; P = 0.030) were independent risk factors for mortality. Appropriate definitive treatment (OR, 0.339; 95 % CI, 0.120-0.954; P = 0.040) was a protective factor for in-hospital death of CRE infection. Kaplan-Meier curves of the CRE group had the shortest survival time compared with the other two groups. Survival time of patients infected with Enterobacteriaceae with a high meropenem MIC (≥8 mg/L) was shorter than that of patients with a low meropenem MIC (2,4, and ≤ 1 mg/L). In conclusion, CRE nosocomial infections are associated with prior exposure to third or fourth generation cephalosporins and carbapenems. Patients infected with CRE had poor outcome and high mortality, especially high meropenem MIC (≥8 mg/L). Appropriate definitive treatment to CRE infections in the patient is essential.
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Affiliation(s)
- Q Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Y Zhang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - X Yao
- Department of Infectious Diseases and Clinical Microbiology, Beijing Chao-Yang Hospital of Capital Medical University, Beijing, 150060, China
| | - H Xian
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Y Liu
- Department of Infectious Diseases and Clinical Microbiology, Beijing Chao-Yang Hospital of Capital Medical University, Beijing, 150060, China
| | - H Li
- Department of Infectious Diseases and Clinical Microbiology, Beijing Chao-Yang Hospital of Capital Medical University, Beijing, 150060, China
| | - H Chen
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - X Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - R Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - C Zhao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - B Cao
- Department of Infectious Diseases and Clinical Microbiology, Beijing Chao-Yang Hospital of Capital Medical University, Beijing, 150060, China
| | - H Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China.
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32
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Katz DE, Friedman ND, Ostrovski E, Ravid D, Amrami N, Avivi D, Mengesha B, Zaidenstein R, Lazarovitch T, Dadon M, Marchaim D. Diabetic foot infection in hospitalized adults. J Infect Chemother 2016; 22:167-73. [PMID: 26806149 DOI: 10.1016/j.jiac.2015.12.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 11/15/2015] [Accepted: 12/16/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Acute infections of the diabetic foot (DFI) are a common and complex condition. Patients are generally managed in the ambulatory setting and epidemiological data pertaining to hospitalized patients is lacking. The aim of this study was to analyze the epidemiology, microbiology and outcomes of hospitalized patients with DFI, who are managed at a referral center equipped with hyperbaric oxygen (HBO) therapy. METHODS A retrospective cohort study of adult patients admitted to a tertiary referral center with DFI over a six-month period in 2013 was undertaken. Predictors of clinical outcomes and efficacy of treatment modalities were analyzed by Cox regression. RESULTS Sixty-one patients with DFI were identified. Most patients were elderly (67 ± 13 years), with long-standing (17 ± 9 years), poorly controlled (HbA1c 9 ± 3%) diabetes. Most patients had polymicrobial infection (80%); specifically, anaerobic (39%) and multi or extensively-drug resistant organisms (61%). Administration of appropriate antimicrobials was delayed for >48 h in 83%. Advanced age was associated with worse outcomes. Sicker patients with severe peripheral vascular disease were managed with HBO. The use of HBO was associated with higher costs and increased functional deterioration, and did not prevent future limb amputation. CONCLUSIONS Our study illustrates the descriptive epidemiology of hospitalized adults with DFI predominantly of polymicrobial etiology. MDROs and anaerobic organisms are common causative pathogens, and appropriate antibiotics were frequently delayed. HBO treatment may delay the need for limb amputation, but not obviate this eventual outcome.
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Affiliation(s)
- David E Katz
- Department of Internal Medicine D, Shaare Zedek Medical Center, Jerusalem, Israel
| | | | - Evgenia Ostrovski
- Department of Internal Medicine D, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Dor Ravid
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Nadav Amrami
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Dori Avivi
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Bethlehem Mengesha
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Ronit Zaidenstein
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Tsilia Lazarovitch
- Clinical Microbiology Laboratory, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Mor Dadon
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
| | - Dror Marchaim
- Unit of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
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33
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Friedman ND, Temkin E, Carmeli Y. The negative impact of antibiotic resistance. Clin Microbiol Infect 2015; 22:416-22. [PMID: 26706614 DOI: 10.1016/j.cmi.2015.12.002] [Citation(s) in RCA: 388] [Impact Index Per Article: 43.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 11/25/2015] [Accepted: 12/03/2015] [Indexed: 12/12/2022]
Abstract
Antibacterial therapy is one of the most important medical developments of the twentieth century; however, the spread of resistance in healthcare settings and in the community threatens the enormous gains made by the availability of antibiotic therapy. Infections caused by resistant bacteria lead to up to two-fold higher rates of adverse outcomes compared with similar infections caused by susceptible strains. These adverse outcomes may be clinical or economic and reflect primarily the failure or delay of antibiotic treatment. The magnitude of these adverse outcomes will be more pronounced as disease severity, strain virulence, or host vulnerability increases. The negative impacts of antibacterial resistance can be measured at the patient level by increased morbidity and mortality, at the healthcare level by increased resource utilization, higher costs and reduced hospital activity and at the society level by antibiotic treatment guidelines favouring increasingly broad-spectrum empiric therapy. In this review we will discuss the negative impact of antibiotic resistance on patients, the healthcare system and society.
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Affiliation(s)
- N D Friedman
- Departments of Medicine and Infectious Diseases, Barwon Health, Geelong, Vic., Australia
| | - E Temkin
- Division of Epidemiology, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel
| | - Y Carmeli
- Division of Epidemiology, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel.
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34
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Mendes RE, Castanheira M, Gasink L, Stone GG, Nichols WW, Flamm RK, Jones RN. β-Lactamase Characterization of Gram-Negative Pathogens Recovered from Patients Enrolled in the Phase 2 Trials for Ceftazidime-Avibactam: Clinical Efficacies Analyzed against Subsets of Molecularly Characterized Isolates. Antimicrob Agents Chemother 2015; 60:1328-35. [PMID: 26666936 PMCID: PMC4775982 DOI: 10.1128/aac.01173-15] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 12/05/2015] [Indexed: 11/30/2022] Open
Abstract
The correlation of the clinical efficacies of ceftazidime-avibactam and comparators (carbapenems) was evaluated against baseline Gram-negative isolates having characterized β-lactam resistance mechanisms from complicated urinary tract infection (cUTI) and complicated intra-abdominal infection (cIAI) phase 2 trials. Enterobacteriaceae displaying ceftriaxone and/or ceftazidime MICs of ≥ 2 μg/ml (69 isolates) and nonfermentative Gram-negative bacilli (NF-GNB [three isolates]) with ceftazidime MICs of ≥ 16 μg/ml were characterized for their narrow- and extended-spectrum β-lactamase (ESBL) content. Enterobacteriaceae (one isolate) and NF-GNB (three isolates) with imipenem/meropenem MICs of ≥ 2 and ≥ 16 μg/ml, respectively, were tested for carbapenemases. All cUTI E. coli had the lineage background investigated (ST131-like versus non-ST131-like). The primary efficacy endpoint was microbiological response (eradication) at test of cure (TOC) for cUTI and clinical response (inferred microbiological eradication) at TOC for cIAI. A total of 34.1% of baseline cUTI (36.4%) and cIAI (33.1%) pathogens met the MIC-based screening criteria (screen positive). All screen-positive cUTI pathogens were CTX-M-producing E. coli, except for one E. cloacae isolate with AmpC overexpression. The majority (66.7%) of screen-positive cIAI isolates produced CTX-M-type coupled with a diverse array of other β-lactamases. Similar favorable responses were observed with ceftazidime-avibactam (93.3%) and carbapenems (90.9%), when a non-ESBL Enterobacteriaceae isolate was recovered at the baseline visit. When an ESBL Enterobacteriaceae isolate was present, the favorable responses were 85.7% and 80.0% with ceftazidime-avibactam and carbapenems, respectively. Higher favorable responses were observed with ceftazidime-avibactam (75.0%) than with carbapenems (66.7%) when an ST131-like E. coli isolate was recovered at baseline, as when a non-ST131-like isolate was present (93.8% versus 86.7%, respectively). The efficacy of ceftazidime-avibactam was similar to that of carbapenems for treatment of cUTI and cIAI caused by ESBL organisms.
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Affiliation(s)
| | | | - Leanne Gasink
- AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
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35
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The Epidemiology of Carbapenem-Resistant Klebsiella pneumoniae Colonization and Infection among Long-Term Acute Care Hospital Residents. Infect Control Hosp Epidemiol 2015; 37:55-60. [PMID: 26455382 DOI: 10.1017/ice.2015.254] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE An improved understanding of carbapenem-resistant Klebsiella pneumoniae (CRKP) in long-term acute care hospitals (LTACHs) is needed. The objective of this study was to assess risk factors for colonization or infection with CRKP in LTACH residents. METHODS A case-control study was performed at a university-affiliated LTACH from 2008 to 2013. Cases were defined as all patients with clinical cultures positive for CRKP and controls were those with clinical cultures positive for carbapenem-susceptible K. pneumoniae (CSKP). A multivariate model was developed to identify risk factors for CRKP infection or colonization. RESULTS A total of 222 patients were identified with K. pneumoniae clinical cultures during the study period; 99 (45%) were case patients and 123 (55%) were control patients. Our multivariate analysis identified factors associated with a significant risk for CRKP colonization or infection: solid organ or stem cell transplantation (OR, 5.05; 95% CI, 1.23-20.8; P=.03), mechanical ventilation (OR, 2.56; 95% CI, 1.24-5.28; P=.01), fecal incontinence (OR, 5.78; 95% CI, 1.52-22.0; P=.01), and exposure in the prior 30 days to meropenem (OR, 3.55; 95% CI, 1.04-12.1; P=.04), vancomycin (OR, 2.94; 95% CI, 1.18-7.32; P=.02), and metronidazole (OR, 4.22; 95% CI, 1.28-14.0; P=.02). CONCLUSIONS Rates of colonization and infection with CRKP were high in the LTACH setting, with nearly half of K. pneumoniae cultures demonstrating carbapenem resistance. Further studies are needed on interventions to limit the emergence of CRKP in LTACHs, including targeted surveillance screening of high-risk patients and effective antibiotic stewardship measures. Infect. Control Hosp. Epidemiol. 2015;37(1):55-60.
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36
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The Complex Epidemiology of Carbapenem-Resistant Enterobacter Infections: A Multicenter Descriptive Analysis. Infect Control Hosp Epidemiol 2015; 36:1283-91. [PMID: 26399907 DOI: 10.1017/ice.2015.186] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The pandemic of carbapenem-resistant Enterobacteriaceae (CRE) was primarily due to clonal spread of bla KPC producing Klebsiella pneumoniae. Thus, thoroughly studied CRE cohorts have consisted mostly of K. pneumoniae. OBJECTIVE To conduct an extensive epidemiologic analysis of carbapenem-resistant Enterobacter spp. (CREn) from 2 endemic and geographically distinct centers. METHODS CREn were investigated at an Israeli center (Assaf Harofeh Medical Center, January 2007 to July 2012) and at a US center (Detroit Medical Center, September 2008 to September 2009). bla KPC genes were queried by polymerase chain reaction. Repetitive extragenic palindromic polymerase chain reaction and pulsed-field gel electrophoresis were used to determine genetic relatedness. RESULTS In this analysis, 68 unique patients with CREn were enrolled. Sixteen isolates (24%) were from wounds, and 33 (48%) represented colonization only. All isolates exhibited a positive Modified Hodge Test, but only 93% (27 of 29) contained bla KPC. Forty-three isolates (63%) were from elderly adults, and 5 (7.4%) were from neonates. Twenty-seven patients died in hospital (40.3% of infected patients). Enterobacter strains consisted of 4 separate clones from Assaf Harofeh Medical Center and of 4 distinct clones from Detroit Medical Center. CONCLUSIONS In this study conducted at 2 distinct CRE endemic regions, there were unique epidemiologic features to CREn: (i) polyclonality, (ii) neonates accounting for more than 7% of cohort, and (iii) high rate of colonization (almost one-half of all cases represented colonization). Since false-positive Modified Hodge Tests in Enterobacter spp. are common, close monitoring of carbapenem resistance mechanisms (particularly carbapenemase production) among Enterobacter spp. is important.
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Tal Jasper R, Coyle JR, Katz DE, Marchaim D. The complex epidemiology of extended-spectrum β-lactamase-producing Enterobacteriaceae. Future Microbiol 2015; 10:819-39. [DOI: 10.2217/fmb.15.16] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
ABSTRACT Antimicrobial resistance is a growing worldwide iatrogenic complication of modern medical care. Extended-spectrum β-lactamases have emerged as one of the most successful resistance mechanisms, limiting our therapeutic options to treat various human infections. The dissemination of these enzymes to the community probably signifies an irreversible step. This paper will review the evolution of human infections associated with extended-spectrum β-lactamase-producing organisms in the past 20 years, and will present and discuss the current challenges, controversies, debates and knowledge gaps in this research field.
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Affiliation(s)
- Ruthy Tal Jasper
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Joseph R Coyle
- Division of Communicable Diseases, Bureau of Disease Control, Prevention & Epidemiology, Michigan Department of Community Health, 201 Townsend St, Lansing, MI, USA, 48909
| | - David E Katz
- Department of Internal Medicine D, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Dror Marchaim
- Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Division of Infectious Diseases, Assaf Harofeh Medical Center, Zerifin, Israel
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Pogue J, Kaye K, Cohen D, Marchaim D. Appropriate antimicrobial therapy in the era of multidrug-resistant human pathogens. Clin Microbiol Infect 2015; 21:302-12. [DOI: 10.1016/j.cmi.2014.12.025] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 12/22/2014] [Accepted: 12/27/2014] [Indexed: 01/02/2023]
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