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Wu H, Li M, Shou C, Shi F, Song X, Hu Q, Wang Y, Chen Y, Tong X. Pathogenic spectrum and drug resistance of bloodstream infection in patients with acute myeloid leukaemia: a single centre retrospective study. Front Cell Infect Microbiol 2024; 14:1390053. [PMID: 38912203 PMCID: PMC11190328 DOI: 10.3389/fcimb.2024.1390053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 05/10/2024] [Indexed: 06/25/2024] Open
Abstract
Background Bloodstream infection (BSI) represent a prevalent complication in haematological malignancies (HMs). Typically, Patients with BSI usually undergo empirical treatment pending pathogen identification. The timely and effective management of BSIs significantly influences patient prognosis. However, pathogen distribution in BSIs exhibits regional variation. In this study, we investigated the clinical characteristics, pathogen spectrum, drug resistance, risk factors of short-term prognosis and long-term prognostic factors of acute myeloid leukemia (AML) patients with BSI at Zhejiang Provincal People's Hospital. Methods From 2019 to 2021, a total of 56 AML patients with BSI were treated in the Department of Haematology at Zhejiang Province People's Hospital. Data regarding pathogen spectrum and drug resistance were collected for analysis. The patients were stratified into non-survivor cohort and survivor cohort within 30 days after BSI, and the predictors of 30-days mortality were identified through both univariate and multivariate Logistic regression analyses. Furthermore, Kaplan-Meier survival analysis and Cox regression analysis were employed to ascertain the risk factors associated with poor prognosis in AML patients complicated by BSI. Results A total of 70 strains of pathogenic bacteria were isolated from 56 AML patients with BSI. Gram-negative bacteria constituted the predominant pathogens (71.4%), with Klebsiella pneumoniae being the most prevalent (22.9%). Gram-positive bacteria and fungi accounted for 22.9% and 5.7%, respectively. Univariate and multivariate analyses revealed significant differences in total protein, albumin levels, and the presence of septic shock between the non-survivor cohort and the survior cohort 30 days post-BSI. COX regression analysis showed that agranulocytosis duration exceeding 20 days (HR:3.854; 95% CI: 1.451-10.242) and septic shock (HR:3.788; 95% CI: 1.729-8.299) were independent risk factors for poor prognosis in AML patients complicated by BSI. Notably, the mortality rate within 30 days after Stenotrophomonas maltophilia infection was up to 71.4%. Conclusions In this study, Gram-negative bacteria, predominantly Klebsiella pneumoniae, constituted the primary pathogens among AML patients with BSIs. Serum albumin levels and the presence of septic shock emerged as independent risk factors for mortality within 30 days among AML patients with BSI. In terms of long-term prognosis, extended agranulocytosis duration exceeding 20 days and septic shock were associated with elevated mortality rates in AML patients with BSI. Additionally, in our centre, Stenotrophomonas maltophilia infection was found to be associated with a poor prognosis. Early intervention for Stenotrophomonas maltophilia infection in our centre could potentially improve patient outcomes.
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Affiliation(s)
- Han Wu
- Graduate School of Clinical Medicine, Jinzhou Medical University, Jinzhou, Liaoning, China
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Manning Li
- Graduate School of Clinical Medicine, Jinzhou Medical University, Jinzhou, Liaoning, China
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Chunyi Shou
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Fangfang Shi
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xiaolu Song
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Qingfeng Hu
- Department of Clinical Laboratory, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ying Wang
- Department of Central Laboratory, Affiliated Hangzhou First People’s Hospital, Xihu University, Hangzhou, Zhejiang, China
| | - Yirui Chen
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xiangmin Tong
- Cancer Center, Department of Hematology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
- Department of Hematology, Affiliated Hangzhou First People’s Hospital, Xihu University, Hangzhou, Zhejiang, China
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Costantino V, Principe L, Mehat J, Busetti M, Piccirilli A, Perilli M, Luzzati R, Zerbato V, Meliadò A, La Ragione R, Di Bella S. Synergistic Activity of Temocillin and Fosfomycin Combination against KPC-Producing Klebsiella pneumoniae Clinical Isolates. Antibiotics (Basel) 2024; 13:526. [PMID: 38927192 PMCID: PMC11200827 DOI: 10.3390/antibiotics13060526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/08/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Infections caused by KPC-producing K. pneumoniae continue to pose a significant clinical challenge due to their emerging resistance to new antimicrobials. We investigated the association between two drugs whose roles have been repurposed against multidrug-resistant bacteria: fosfomycin and temocillin. Temocillin exhibits unusual stability against KPC enzymes, while fosfomycin acts as a potent "synergizer". We conducted in vitro antimicrobial activity studies on 100 clinical isolates of KPC-producing K. pneumoniae using a combination of fosfomycin and temocillin. The results demonstrated synergistic activity in 91% of the isolates. Subsequently, we assessed the effect on Galleria mellonella larvae using five genetically different KPC-Kp isolates. The addition of fosfomycin to temocillin increased larvae survival from 73 to 97% (+Δ 32%; isolate 1), from 93 to 100% (+Δ 7%; isolate 2), from 63 to 86% (+Δ 36%; isolate 3), from 63 to 90% (+Δ 42%; isolate 4), and from 93 to 97% (+Δ 4%; isolate 10). Among the temocillin-resistant KPC-producing K. pneumoniae isolates (24 isolates), the addition of fosfomycin reduced temocillin MIC values below the resistance breakpoint in all isolates except one. Temocillin combined with fosfomycin emerges as a promising combination against KPC-producing K. pneumoniae, warranting further clinical evaluation.
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Affiliation(s)
- Venera Costantino
- Microbiology Unit, Trieste University Hospital (ASUGI), 34128 Trieste, Italy; (V.C.); (M.B.)
| | - Luigi Principe
- Clinical Microbiology and Virology Unit, Great Metropolitan Hospital “Bianchi-Melacrino-Morelli”, 89128 Reggio di Calabria, Italy; (L.P.); (A.M.)
| | - Jai Mehat
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford GU2 7XH, UK; (J.M.); (R.L.R.)
| | - Marina Busetti
- Microbiology Unit, Trieste University Hospital (ASUGI), 34128 Trieste, Italy; (V.C.); (M.B.)
| | - Alessandra Piccirilli
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.P.); (M.P.)
| | - Mariagrazia Perilli
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (A.P.); (M.P.)
| | - Roberto Luzzati
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34129 Trieste, Italy;
| | - Verena Zerbato
- Infectious Diseases Unit, Trieste University Hospital (ASUGI), 34125 Trieste, Italy;
| | - Antonietta Meliadò
- Clinical Microbiology and Virology Unit, Great Metropolitan Hospital “Bianchi-Melacrino-Morelli”, 89128 Reggio di Calabria, Italy; (L.P.); (A.M.)
| | - Roberto La Ragione
- Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford GU2 7XH, UK; (J.M.); (R.L.R.)
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford GU2 7XH, UK
| | - Stefano Di Bella
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, 34129 Trieste, Italy;
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Miller WR, Arias CA. ESKAPE pathogens: antimicrobial resistance, epidemiology, clinical impact and therapeutics. Nat Rev Microbiol 2024:10.1038/s41579-024-01054-w. [PMID: 38831030 DOI: 10.1038/s41579-024-01054-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2024] [Indexed: 06/05/2024]
Abstract
The rise of antibiotic resistance and a dwindling antimicrobial pipeline have been recognized as emerging threats to public health. The ESKAPE pathogens - Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter spp. - were initially identified as critical multidrug-resistant bacteria for which effective therapies were rapidly needed. Now, entering the third decade of the twenty-first century, and despite the introduction of several new antibiotics and antibiotic adjuvants, such as novel β-lactamase inhibitors, these organisms continue to represent major therapeutic challenges. These bacteria share several key biological features, including adaptations for survival in the modern health-care setting, diverse methods for acquiring resistance determinants and the dissemination of successful high-risk clones around the world. With the advent of next-generation sequencing, novel tools to track and combat the spread of these organisms have rapidly evolved, as well as renewed interest in non-traditional antibiotic approaches. In this Review, we explore the current epidemiology and clinical impact of this important group of bacterial pathogens and discuss relevant mechanisms of resistance to recently introduced antibiotics that affect their use in clinical settings. Furthermore, we discuss emerging therapeutic strategies needed for effective patient care in the era of widespread antimicrobial resistance.
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Affiliation(s)
- William R Miller
- Department of Internal Medicine, Division of Infectious Diseases, Houston Methodist Hospital, Houston, TX, USA
- Center for Infectious Diseases, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Cesar A Arias
- Department of Internal Medicine, Division of Infectious Diseases, Houston Methodist Hospital, Houston, TX, USA.
- Center for Infectious Diseases, Houston Methodist Research Institute, Houston, TX, USA.
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA.
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Rodríguez-Leal CM, González-Corralejo C, Candel FJ, Salavert M. Candent issues in pneumonia. Reflections from the Fifth Annual Meeting of Spanish Experts 2023. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2024; 37:221-251. [PMID: 38436606 PMCID: PMC11094633 DOI: 10.37201/req/018.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Pneumonia is a multifaceted illness with a wide range of clinical manifestations, degree of severity and multiple potential causing microorganisms. Despite the intensive research of recent decades, community-acquired pneumonia remains the third-highest cause of mortality in developed countries and the first due to infections; and hospital-acquired pneumonia is the main cause of death from nosocomial infection in critically ill patients. Guidelines for management of this disease are available world wide, but there are questions which generate controversy, and the latest advances make it difficult to stay them up to date. A multidisciplinary approach can overcome these limitations and can also aid to improve clinical results. Spanish medical societies involved in diagnosis and treatment of pneumonia have made a collaborative effort to actualize and integrate last expertise about this infection. The aim of this paper is to reflect this knowledge, communicated in Fifth Pneumonia Day in Spain. It reviews the most important questions about this disorder, such as microbiological diagnosis, advances in antibiotic and sequential therapy, management of beta-lactam allergic patient, preventive measures, management of unusual or multi-resistant microorganisms and adjuvant or advanced therapies in Intensive Care Unit.
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Affiliation(s)
| | | | - F J Candel
- Francisco Javier Candel, Clinical Microbiology Service. Hospital Clínico San Carlos. IdISSC and IML Health Research Institutes. 28040 Madrid. Spain.
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Mauri C, Consonni A, Briozzo E, Giubbi C, Meroni E, Tonolo S, Luzzaro F. The Molecular Mouse System: A New Useful Tool for Guiding Antimicrobial Therapy in Critically Ill Septic Patients. Antibiotics (Basel) 2024; 13:517. [PMID: 38927183 PMCID: PMC11200723 DOI: 10.3390/antibiotics13060517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/24/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Bloodstream infections (BSI) caused by multidrug-resistant (MDR) bacteria, pose a major threat for patients, especially for those who are immunosuppressed. Rapid pathogen detection and characterization from positive blood cultures are crucial in the management of patients with BSI to enable an adequate and timely antimicrobial therapy. This study aimed to investigate the potential role of the Molecular Mouse system, a new CE IVD molecular test designed to rapidly detect the causative agents of bacteremia and their resistance determinants, in the management of the therapy in critically ill patients. Agreement between the results of the Molecular Mouse and the conventional routine method was also considered. Overall, 100 positive blood cultures were collected from septic critically ill patients from May 2023 to January 2024 and analyzed with Molecular Mouse and routine protocols. The new instrument consistently agreed with the routine protocols in the case of monomicrobial blood cultures, while some discrepancies were obtained in the polymicrobial samples. Antimicrobial resistance genes were detected in 35 samples, with vanA and CTX-M-1/9 groups being the most frequently detected targets. Therapy was adjusted in 42 critically ill patients confirming the importance of new rapid molecular tests in the management of positive blood cultures, to adjust empirical therapy and use new antibiotics accurately.
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Shields RK, Horcajada JP, Kamat S, Irani PM, Tawadrous M, Welte T. Ceftazidime-Avibactam in the Treatment of Patients with Bacteremia or Nosocomial Pneumonia: A Systematic Review and Meta-analysis. Infect Dis Ther 2024:10.1007/s40121-024-00999-y. [PMID: 38822167 DOI: 10.1007/s40121-024-00999-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 05/17/2024] [Indexed: 06/02/2024] Open
Abstract
INTRODUCTION Ceftazidime-avibactam (CAZ-AVI) is a combination of the third-generation cephalosporin ceftazidime and the novel, non-β-lactam β-lactamase inhibitor avibactam that is approved for the treatment of pediatric (≥ 3 months) and adult patients with complicated infections including hospital-acquired and ventilator-associated pneumonia (HAP/VAP), and bacteremia. This systematic literature review and meta-analysis (PROSPERO registration: CRD42022362856) aimed to provide a quantitative and qualitative synthesis to evaluate the effectiveness of CAZ-AVI in treating adult patients with bacteremia or nosocomial pneumonia caused by carbapenem-resistant Enterobacterales (non metallo-β-lactamase-producing strains) and multi-drug resistant (MDR) Pseudomonas aeruginosa infections. METHODS The databases included in the search, until November 7, 2022, were Embase and PubMed. A total of 24 studies (retrospective: 22, prospective: 2) with separate outcomes for patients with bacteremia or pneumonia were included. RESULTS The outcomes assessed were all-cause mortality, clinical cure, and microbiological cure. Qualitative (24 studies) and quantitative (8/24 studies) syntheses were performed. The quality of the studies was assessed using the MINORS checklist and the overall risk of bias was moderate to high. CONCLUSIONS In studies included in the meta-analysis, lower all-cause mortality for patients with bacteremia (OR = 0.30, 95% CI 0.19-0.46) and improved rates of clinical cure for patients with bacteremia (OR = 4.90, 95% CI 2.60-9.23) and nosocomial pneumonia (OR = 3.20, 95% CI 1.55-6.60) was observed in the CAZ-AVI group compared with the comparator group. Data provided here may be considered while using CAZ-AVI for the treatment of patients with difficult-to-treat infections. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42022362856.
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Affiliation(s)
- Ryan K Shields
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Juan P Horcajada
- Department of Infectious Diseases, Hospital Del Mar, Institut Hospital Del Mar d'Investigacions Mèdiques (IMIM), Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III CIBERINFEC, Madrid, Spain
| | | | | | | | - Tobias Welte
- Department of Respiratory Medicine and Infectious Disease, Member of the German Center of Lung Research, Hannover School of Medicine, Hannover, Germany
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Lee CC, Chen PL, Ho CY, Hong MY, Hung YP, Ko WC. Prompt antimicrobial therapy and source control on survival and defervescence of adults with bacteraemia in the emergency department: the faster, the better. Crit Care 2024; 28:176. [PMID: 38790061 PMCID: PMC11127347 DOI: 10.1186/s13054-024-04963-7] [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: 03/06/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Bacteraemia is a critical condition that generally leads to substantial morbidity and mortality. It is unclear whether delayed antimicrobial therapy (and/or source control) has a prognostic or defervescence effect on patients with source-control-required (ScR) or unrequired (ScU) bacteraemia. METHODS The multicenter cohort included treatment-naïve adults with bacteraemia in the emergency department. Clinical information was retrospectively obtained and etiologic pathogens were prospectively restored to accurately determine the time-to-appropriate antibiotic (TtAa). The association between TtAa or time-to-source control (TtSc, for ScR bacteraemia) and 30-day crude mortality or delayed defervescence were respectively studied by adjusting independent determinants of mortality or delayed defervescence, recognised by a logistic regression model. RESULTS Of the total 5477 patients, each hour of TtAa delay was associated with an average increase of 0.2% (adjusted odds ratio [AOR], 1.002; P < 0.001) and 0.3% (AOR 1.003; P < 0.001) in mortality rates for patients having ScU (3953 patients) and ScR (1524) bacteraemia, respectively. Notably, these AORs were augmented to 0.4% and 0.5% for critically ill individuals. For patients experiencing ScR bacteraemia, each hour of TtSc delay was significantly associated with an average increase of 0.31% and 0.33% in mortality rates for overall and critically ill individuals, respectively. For febrile patients, each additional hour of TtAa was significantly associated with an average 0.2% and 0.3% increase in the proportion of delayed defervescence for ScU (3085 patients) and ScR (1266) bacteraemia, respectively, and 0.5% and 0.9% for critically ill individuals. For 1266 febrile patients with ScR bacteraemia, each hour of TtSc delay respectively was significantly associated with an average increase of 0.3% and 0.4% in mortality rates for the overall population and those with critical illness. CONCLUSIONS Regardless of the need for source control in cases of bacteraemia, there seems to be a significant association between the prompt administration of appropriate antimicrobials and both a favourable prognosis and rapid defervescence, particularly among critically ill patients. For ScR bacteraemia, delayed source control has been identified as a determinant of unfavourable prognosis and delayed defervescence. Moreover, this association with patient survival and the speed of defervescence appears to be augmented among critically ill patients.
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Affiliation(s)
- Ching-Chi Lee
- Clinical Medical Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan.
- Division of Infectious Disease, Departments of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan.
| | - Po-Lin Chen
- Division of Infectious Disease, Departments of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
| | - Ching-Yu Ho
- Department of Adult Critical Care Medicine, Tainan Sin-Lau Hospital, No.57, Sec. 1, Dongmen Road, East Dist., Tainan, 70142, Taiwan
- Department of Nursing, National Tainan Junior College of Nursing, Tainan, Taiwan
| | - Ming-Yuan Hong
- Departments of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
| | - Yuan-Pin Hung
- Division of Infectious Disease, Departments of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
- Department of Medicine, Medical College, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan
- Department of Internal Medicine, Tainan Hospital, Ministry of Health and Welfare, No. 125, Jhongshan Rd., West Central Dist., Tainan City, Taiwan
| | - Wen-Chien Ko
- Division of Infectious Disease, Departments of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan.
- Department of Medicine, Medical College, National Cheng Kung University, No. 138, Sheng Li Road, 70403, Tainan, Taiwan.
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Falcone M, Giordano C, Leonildi A, Galfo V, Lepore A, Suardi LR, Riccardi N, Barnini S, Tiseo G. Clinical Features and Outcomes of Infections Caused by Metallo-β-Lactamase-Producing Enterobacterales: A 3-Year Prospective Study From an Endemic Area. Clin Infect Dis 2024; 78:1111-1119. [PMID: 38036465 DOI: 10.1093/cid/ciad725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Metallo-β-lactamase (MBL)-producing Enterobacterales are increasing worldwide. Our aim was to describe clinical features, treatments, and outcomes of infections by MBL-Enterobacterales. METHODS A prospective observational study conducted in the Pisa University Hospital (January 2019 to October 2022) included patients with MBL-producing Enterobacterales infections. The primary outcome measure was the 30-day mortality rate. Multivariable Cox regression analysis was performed to identify factors associated with that mortality rate, and adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) were calculated. RESULTS The study's 343 patients included 15 with Verona integron-encoded MBL (VIM)- and 328 with New Delhi MBL (NDM)-producing Enterobacterales infections; there were 199 patients (58%) with bloodstream infections, 60 (17.5%) with hospital-acquired or ventilator-associated pneumonia, 60 (17.5%) with complicated urinary tract infections, 13 (3.8%) with intra-abdominal infections, and 11 (3.2%) with skin and soft-tissue infections. The 30-day mortality rate was 29.7%. Of 343 patients, 32 did not receive in vitro active antibiotic therapy, 215 (62.7%) received ceftazidime-avibactam plus aztreonam, 33 (9.6%) received cefiderocol-containing regimens, 26 (7.6%) received colistin-containing regimens, and 37 (10.8%) received other active antibiotics. On multivariable analysis, septic shock (aHR, 3.57 [95% CI, 2.05-6.23]; P < .001) and age (1.05 [1.03-1.08]; P < .001) were independently associated with the 30-day mortality rate, while in vitro active antibiotic therapy within 48 hours after infection (0.48 [.26-.8]; P = .007) and source control (0.43 [.26-.72]; P = .001) were protective factors. Sensitivity analysis showed that ceftazidime-avibactam plus aztreonam, compared with colistin, was independently associated with a reduced 30-day mortality rate (aHR, 0.39 [95% CI, .18-.86]; P = .02). Propensity score analyses confirmed these findings. CONCLUSIONS MBL-producing carbapenem-resistant Enterobacterales infections are associated with high 30-day mortality rates. Patients with MBL-producing Enterobacterales infections should receive early active antibiotic therapy.
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Affiliation(s)
- Marco Falcone
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Cesira Giordano
- Microbiology Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | | | - Valentina Galfo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Aurelio Lepore
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Lorenzo Roberto Suardi
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Niccolò Riccardi
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Simona Barnini
- Microbiology Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Giusy Tiseo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, Pisa, Italy
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Önal U, Tüzemen Ü, Küçükdemirci Kaya P, İşçimen R, Kelebek Girgin N, Özakın C, Kahveci F, Akalın H. A comparative study of ceftazidime/avibactam-based and fosfomycin plus meropenem-based regimens for managing infections caused by carbapenem-resistant Klebsiella pneumoniae in critically ill patients. J Chemother 2024:1-9. [PMID: 38698711 DOI: 10.1080/1120009x.2024.2349439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 04/24/2024] [Indexed: 05/05/2024]
Abstract
The main aim of this study was to compare and analyze the effectiveness of treatment regimens using ceftazidime/avibactam (CAZ/AVI) versus fosfomycin plus meropenem (FOS/MER) for managing bloodstream infections (BSI) or ventilator-associated pneumonia (VAP) caused by carbapenem-resistant Klebsiella pneumoniae (CRKP) in critically ill patients. Between 4 January 2019, and 16 July 2023, adult patients (≥18 years old) diagnosed with BSI or VAP due to culture confirmed CRKP in ICU of a tertiary care hospital were investigated retrospectively. A total of 71 patients were categorized into two groups: 30 patients in CAZ/AVI-based, and 41 patients in FOS/MER-based group. No substantial disparities were found in the total duration of ICU hospitalization, as well as the 14- and 30-day mortality rates, between patients treated with CAZ/AVI-based and FOS/MER-based therapeutic regimens. We consider that our study provides for the first time a comprehensive understanding of treatment outcomes and associated risk factors among patients with CRKP-related infections.
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Affiliation(s)
- Uğur Önal
- Department of Infectious Diseases and Clinical Microbiology, Uludag University, Bursa, Türkiye
| | - Ülkü Tüzemen
- Department of Medical Microbiology, Uludag University, Bursa, Türkiye
| | | | - Remzi İşçimen
- Department of Anesthesiology and Reanimation, Uludag University, Bursa, Türkiye
| | | | - Cüneyt Özakın
- Department of Medical Microbiology, Uludag University, Bursa, Türkiye
| | - Ferda Kahveci
- Department of Anesthesiology and Reanimation, Uludag University, Bursa, Türkiye
| | - Halis Akalın
- Department of Infectious Diseases and Clinical Microbiology, Uludag University, Bursa, Türkiye
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Li J, Wu W, Wu M, Zhou Z, Wang J, Qiu M, Xu L, Ren J, Wu X. Clinical and Molecular Characteristics of Patients with Bloodstream Infections Caused by KPC and NDM Co-Producing Carbapenem-Resistant Klebsiella pneumoniae. Infect Drug Resist 2024; 17:1685-1697. [PMID: 38711471 PMCID: PMC11073536 DOI: 10.2147/idr.s455146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/22/2024] [Indexed: 05/08/2024] Open
Abstract
Purpose Klebsiella pneumoniae carbapenemase (KPC) and New Delhi metallo-β-lactamase (NDM) co-producing carbapenem-resistant Klebsiella pneumoniae (KPC-NDM-CRKP) isolates have been increasingly reported worldwide but have not yet been systematically studied. Thus, we have conducted a study to compare the risk factors, molecular characteristics, and mortality involved in clinical bloodstream infections (BSIs) caused by KPC-NDM-CRKP and KPC-CRKP strains. Methods A retrospective study was conducted on 231 patients with BSIs caused by CRKP at Jinling Hospital in China from January 2020 to December 2022. Antimicrobial susceptibility testing, carbapenemase genes detection and whole-genome sequencing were performed subsequently. Results Overall, 231 patients were included in this study: 25 patients with KPC-NDM-CRKP BSIs and 206 patients with KPC-CRKP BSIs. Multivariate analysis implicated ICU-acquired BSI, surgery within 30 days, and longer stay of hospitalization prior to CRKP isolation as independent risk factors for KPC-NDM-CRKP BSIs. The 30-day mortality rate of the KPC-NDM-CRKP BSIs group was 56% (14/25) compared with 32.5% (67/206) in the KPC-CRKP BSIs control group (P = 0.02). The ICU-acquired BSIs, APACHE II score at BSI onset, and BSIs caused by KPC-NDM-CRKP were independent predictors for 30-day mortality in patients with CRKP bacteremia. The most prevalent ST in KPC-NDM-CRKP isolates was ST11 (23/25, 92%), followed by ST15 (2/25, 8%). Conclusion In patients with CRKP BSIs, KPC-NDM-CRKP was associated with an excess of mortality. The likelihood that KPC-NDM-CRKP will become the next "superbug" highlights the significance of epidemiologic surveillance and clinical awareness of this pathogen.
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Affiliation(s)
- Jiayang Li
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
- Research Institute of General Surgery, Jinling Hospital, School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Wenqi Wu
- School of Medicine, Nanjing University, Nanjing, People’s Republic of China
| | - Meilin Wu
- Nanjing Medical University, Nanjing, People’s Republic of China
| | - Zhitao Zhou
- Nanjing Medical University, Nanjing, People’s Republic of China
| | - Jiajie Wang
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Mingjie Qiu
- Nanjing Medical University, Nanjing, People’s Republic of China
| | - Li Xu
- Nanjing Medical University, Nanjing, People’s Republic of China
| | - Jianan Ren
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
- Research Institute of General Surgery, Jinling Hospital, School of Medicine, Southeast University, Nanjing, People’s Republic of China
| | - Xiuwen Wu
- School of Medicine, Southeast University, Nanjing, People’s Republic of China
- Research Institute of General Surgery, Jinling Hospital, School of Medicine, Southeast University, Nanjing, People’s Republic of China
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11
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Abdelraouf K, Gill CM, Gethers M, Tiseo G, Barnini S, Falcone M, Menichetti F, Nicolau DP. Deciphering the Efficacy of β-Lactams in the Face of Metallo-β-Lactamase-Derived Resistance in Enterobacterales: Supraphysiologic Zinc in the Broth Is the Culprit. Open Forum Infect Dis 2024; 11:ofae228. [PMID: 38813259 PMCID: PMC11134298 DOI: 10.1093/ofid/ofae228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 04/17/2024] [Indexed: 05/31/2024] Open
Abstract
Background In vitro-in vivo discordance in β-lactams' activities against metallo-ß-lactamase (MBL)-producing Enterobacterales has been described. We aimed to assess whether this discordance is attributed to the supra-physiologic zinc concentration in in vitro testing media. Methods A clinical and microbiological observational study of patients with bloodstream infections due to New Delhi metallo-ß-lactamase-producing Klebsiella pneumoniae was performed. Outcomes of patients treated empirically with non-MBL-active β-lactam therapy (carbapenems and ceftazidime/avibactam) and MBL-active β-lactam therapy (ceftazidime/avibactam + aztreonam) were documented. The patients' isolates were used to induce septicemia in mice, and survival upon meropenem treatment was recorded. Meropenem minimum inhibitory concentrations (MICs) were determined in standard media and in the presence of physiological zinc concentrations. Results Twenty-nine patients receiving empiric non-MBL-active β-lactams (median duration, 4 days) were compared with 29 receiving MBL-active β-lactams. The 14-day mortality rates were 21% and 14%, respectively. In the murine septicemia model, meropenem treatment resulted in protection from mortality (P < .0001). Meropenem MICs in the physiologic zinc concentration broth were 1- to >16-fold lower vs MICs in zinc-unadjusted broth (≥64 mg/L). Conclusions Our data provide foundational support to establish pharmacokinetic/pharmacodynamic relationships using MICs derived in physiologic zinc concentration, which may better predict β-lactam therapy outcome.
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Affiliation(s)
- Kamilia Abdelraouf
- Center for Anti-Infective Research & Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Christian M Gill
- Center for Anti-Infective Research & Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Matthew Gethers
- Center for Anti-Infective Research & Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Giusy Tiseo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Simona Barnini
- Microbiology Unit, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Marco Falcone
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Francesco Menichetti
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - David P Nicolau
- Center for Anti-Infective Research & Development, Hartford Hospital, Hartford, Connecticut, USA
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12
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Kroneislová G, Závora J, Adámková VG, Rýdlová A, Adámková V. In vitro activity of antibiotics potentially effective against difficult-to-treat strains of Gram-negative rods: retrospective study. Sci Rep 2024; 14:8310. [PMID: 38594467 PMCID: PMC11004177 DOI: 10.1038/s41598-024-59036-0] [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: 06/28/2023] [Accepted: 04/05/2024] [Indexed: 04/11/2024] Open
Abstract
Bacterial resistance surveillance is one of the main outputs of microbiological laboratories and its results are important part of antimicrobial stewardship (AMS). In this study, the susceptibility of specific bacteria to selected antimicrobial agents was tested. The susceptibility of 90 unique isolates of pathogens of critical priority obtained from clinically valid samples of ICU patients in 2017-2021 was tested. 50% of these fulfilled difficult-to-treat resistance (DTR) criteria and 50% were susceptible to all antibiotics included in the definition. 10 Enterobacterales strains met DTR criteria, and 2 (20%) were resistant to colistin (COL), 2 (20%) to cefiderocol (FCR), 7 (70%) to imipenem/cilastatin/relebactam (I/R), 3 (30%) to ceftazidime/avibactam (CAT) and 5 (50%) to fosfomycin (FOS). For Enterobacterales we also tested aztreonam/avibactam (AZA) for which there are no breakpoints yet. The highest MIC of AZA observed was 1 mg/l, MIC range in the susceptible cohort was 0.032-0.064 mg/l and in the DTR cohort (incl. class B beta-lactamase producers) it was 0.064-1 mg/l. Two (13.3%) isolates of Pseudomonas aeruginosa (15 DTR strains) were resistant to COL, 1 (6.7%) to FCR, 13 (86.7%) to I/R, 5 (33.3%) to CAT, and 5 (33.3%) to ceftolozane/tazobactam. All isolates of Acinetobacter baumannii with DTR were susceptible to COL and FCR, and at the same time resistant to I/R and ampicillin/sulbactam. New antimicrobial agents are not 100% effective against DTR. Therefore, it is necessary to perform susceptibility testing of these antibiotics, use the data for surveillance (including local surveillance) and conform to AMS standards.
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Affiliation(s)
- Gabriela Kroneislová
- Department of Clinical Microbiology and ATB Centre, Institute of Medical Biochemistry and Laboratory Diagnostic, First Faculty of Medicine, Charles University and General University Hospital, Ke Karlovu 2, Prague, 12808, Czech Republic.
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Czech Republic.
| | - Jan Závora
- Department of Clinical Microbiology and ATB Centre, Institute of Medical Biochemistry and Laboratory Diagnostic, First Faculty of Medicine, Charles University and General University Hospital, Ke Karlovu 2, Prague, 12808, Czech Republic
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University-Olomouc, Olomouc, Czech Republic
| | | | - Anna Rýdlová
- Department of Infectious Disease, Faculty of Medicine, Imperial College London, London, UK
| | - Václava Adámková
- Department of Clinical Microbiology and ATB Centre, Institute of Medical Biochemistry and Laboratory Diagnostic, First Faculty of Medicine, Charles University and General University Hospital, Ke Karlovu 2, Prague, 12808, Czech Republic
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13
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Moore LSP, Baltas I, Amos J, Cooray M, Hughes S, Freeman R, Ashfield T. Antimicrobial stewardship markers and healthcare-associated pneumonia threshold criteria in UK hospitals: analysis of the MicroGuide Tm application. JAC Antimicrob Resist 2024; 6:dlae058. [PMID: 38633221 PMCID: PMC11022069 DOI: 10.1093/jacamr/dlae058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/21/2024] [Indexed: 04/19/2024] Open
Abstract
Background To address antimicrobial resistance, antimicrobial stewardship (AMS) principles must be implemented and adhered to. Clinical decision aids such as the MicroGuideTM app are an important part of these efforts. We sought to evaluate the consistency of core AMS information and the diversity of classification thresholds for healthcare-associated pneumonia (HAP) in the MicroGuide app. Methods Guidelines in the MicroGuide app were extracted and analysed for content related to AMS and HAP. Guidelines were characterized according to HAP naming classification; community-acquired pneumonia (CAP) classifications were analysed to serve as a comparator group. Results In total, 115 trusts (119 hospitals) were included. Nearly all hospitals had developed MicroGuide sections on AMS (n = 112/119, 94%) and sepsis management (n = 117/119, 98%). Other AMS sections were outpatient parenteral antimicrobial therapy (47%), antifungal stewardship (70%), critical care (23%) and IV to oral switch therapy (83%). Only 9% of hospitals included guidance on the maximum six key AMS sections identified. HAP definitions varied widely across hospitals with some classifying by time to onset and some classifying by severity or complexity. The largest proportion of HAP guidelines based classification on severity/complexity (n = 69/119, 58%). By contrast, definitions in CAP guidelines were uniform. Conclusions The high heterogeneity in HAP classification identified suggests inconsistency of practice in identifying thresholds for HAP in the UK. This complicates HAP management and AMS practices. To address HAP in alignment with AMS principles, a comprehensive strategy that prioritizes uniform clinical definitions and thresholds should be developed.
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Affiliation(s)
- Luke S P Moore
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
- Imperial College London, NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, London, UK
| | - Ioannis Baltas
- Department of Infection, Immunity and Inflammation, Institute of Child Health, University College London, London, UK
- Department of Microbiology, University College London Hospitals NHS Foundation Trust, London, UK
| | | | | | - Stephen Hughes
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
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14
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Tiseo G, Galfo V, Riccardi N, Suardi LR, Pogliaghi M, Giordano C, Leonildi A, Barnini S, Falcone M. Real-world experience with meropenem/vaborbactam for the treatment of infections caused by ESBL-producing Enterobacterales and carbapenem-resistant Klebsiella pneumoniae. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04758-2. [PMID: 38376634 DOI: 10.1007/s10096-024-04758-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 01/11/2024] [Indexed: 02/21/2024]
Abstract
PURPOSE Real-world experience with meropenem/vaborbactam (M/V) is limited. Our aim is to report a clinical experience of M/V in the treatment of resistant Gram-negative bacilli. METHODS This is a prospective observational study including patients hospitalized in the University Hospital of Pisa (March 2021-Jan 2023) with infections by both extended-spectrum β-lactamases (ESBL)-producing Enterobacterales and carbapenem-resistant Klebsiella pneumoniae (Kp) treated with M/V. The primary outcome measure was clinical success, defined as a composite of survival, resolution of signs and symptoms and absence of microbiological failure at day 30 from infection onset. A multivariable regression analysis was performed to identify factors associated with clinical failure. Odds ratio (OR) with 95% confidence intervals (CI) was calculated. RESULTS A total of 104 patients who received M/V were included: 24/104 (23.1%) infections were caused by ESBL non-hypervirulent Enterobacterales, 17/104 (16.3%) by ESBL-producing hypervirulent Klebsiella pneumoniae (hvKp) and 63/104 (60.6%) by CRE. The most common infections were bloodstream infections, followed by urinary tract infections, hospital-acquired pneumonia, intra-abdominal infections and others. Septic shock occurred in 16/104 (15.4%) patients. Clinical success was achieved in 77% of patients, and 30-day mortality rate was 15.4%. In patients with KPC-producing Kp infections, clinical success and 30-day mortality rates were 82% and 11.5%, respectively. On multivariable analysis, SOFA score (OR 1.32, 95% CI 1.02-1.7, p=0.032) was independently associated with clinical failure, while source control (OR 0.16, 95% CI 0.03-0.89, p=0.036) was protective. CONCLUSIONS M/V is a promising therapeutic option against infections caused by difficult-to-treat ESBL-producing Enterobacterales and CR-Kp.
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Affiliation(s)
- Giusy Tiseo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Valentina Galfo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Niccolò Riccardi
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Lorenzo Roberto Suardi
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Manuela Pogliaghi
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Cesira Giordano
- Microbiology Unit, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | | | - Simona Barnini
- Microbiology Unit, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Marco Falcone
- University of Pisa, Lungarno Pacinotti, 43, 56126, Pisa, Italy.
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15
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Cao Y, Tian Y, Huang J, Xu L, Fan Z, Pan Z, Chen S, Gao Y, Wei L, Zheng S, Zhang X, Yu Y, Ren F. CRISPR/Cas13-assisted carbapenem-resistant Klebsiella pneumoniae detection. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2024; 57:118-127. [PMID: 37963801 DOI: 10.1016/j.jmii.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/25/2023] [Accepted: 10/26/2023] [Indexed: 11/16/2023]
Abstract
BACKGROUND/PURPOSE Carbapenem-resistant Klebsiella pneumoniae (CRKP) is capable of causing serious community and hospital-acquired infections. However, currently, the identification of CRKP is complex and inefficient. Hence, this study aimed to develop methods for the early and effective identification of CRKP to allow reasonable antimicrobial therapy in a timely manner. METHODS K. pneumoniae (KP)-, K. pneumoniae carbapenemase (KPC)- and New Delhi metallo-β-lactamase (NDM)- specific CRISPR RNAs (crRNAs), polymerase chain reaction (PCR) primers and recombinase-aided amplification (RAA) primers were designed and screened in conserved sequence regions. We established fluorescence and lateral flow strip assays based on CRISPR/Cas13a combined with PCR and RAA, respectively, to assist in the detection of CRKP. Sixty-one clinical strains (including 51 CRKP strains and 10 carbapenem-sensitive strains) were collected for clinical validation. RESULTS Using the PCR-CRISPR assay, the limit of detection (LOD) for KP and the blaKPC and blaNDM genes reached 1 copy/μL with the fluorescence signal readout. Using the RAA-CRISPR assay, the LOD could reach 101 copies/μL with both the fluorescence signal readout and the lateral flow strip readout. Additionally, the positivity rates of CRKP-positive samples detected by the PCR/RAA-CRISPR fluorescence and RAA-CRISPR lateral flow strip methods was 92.16% (47/51). The sensitivity and specificity reached 100% for KP and blaKPC and blaNDM gene detection. For detection in a simulated environmental sample, 1 CFU/cm2 KP could be detected. CONCLUSION We established PCR/RAA-CRISPR assays for the detection of blaKPC and blaNDM carbapenemase genes, as well as KP, to facilitate the detection of CRKP.
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Affiliation(s)
- Yaling Cao
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Yuan Tian
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Jing Huang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Department of Infection Control, Beijing 100730, China.
| | - Ling Xu
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Zihao Fan
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Zhenzhen Pan
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Sisi Chen
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Yao Gao
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Linlin Wei
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Sujun Zheng
- Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Xiangying Zhang
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Yanhua Yu
- Center for Clinical Laboratory, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Feng Ren
- Beijing Institute of Hepatology/Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
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Mantzarlis K, Manoulakas E, Parisi K, Sdroulia E, Zapaniotis N, Tsolaki V, Zakynthinos E, Makris D. Meropenem plus Ertapenem and Ceftazidime-Avibactam plus Aztreonam for the Treatment of Ventilator Associated Pneumonia Caused by Pan-Drug Resistant Klebsiella pneumonia. Antibiotics (Basel) 2024; 13:141. [PMID: 38391527 PMCID: PMC10886053 DOI: 10.3390/antibiotics13020141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
INTRODUCTION Gram-negative bacteria (GNB) account for about 70% of infections in the intensive care unit (ICU) setting and are associated with significant morbidity and mortality. In recent years, pan-drug resistant (PDR) strains, strains that are not susceptible to any antibiotic, have been emerged and new treatment strategies are required. RESULTS Fifty eligible patients were recruited in the three groups. A statistically significant reduction in the Sequential Organ Failure Assessment (SOFA) score was observed in the control group on day 4 in comparison to day 0 of VAP (p = 0.005). The Clinical Pulmonary Infection Score (CPIS) was also reduced on day 4 (p = 0.0016) and day 7 in comparison to day 0 (p = 0.001). Patients that received combination therapy, CAZ-AVI + ATM and DCT, presented with a lower SOFA score and CPIS on day 7 in comparison to day 0 (p = 0.0288 and p = 0.037, respectively). No differences in the ΔSOFA score and ΔCPIS were found between the groups. The control group presented with a significantly lower ICU stay and duration of mechanical ventilation (p = 0.03 and p = 0.02, respectively). There was no difference in mortality. MATERIALS AND METHODS This is a retrospective analysis. This study was conducted in a mixed ICU in the University Hospital of Larissa, Thessaly, Greece during a three-year period (2020-2022). Patients suffering from ventilator associated pneumonia (VAP) due to carbapenem-resistant K. pneumonia (CR-KP) were divided in three different groups: the first one was treated using ceftazidime-avibactam plus aztreonam (CAZ-AVI + ATM group), the second was treated using double carbapenems (DCT group), and the last one (control group) received appropriate therapy since the strain was susceptible in vitro to at least to one antibiotic. CONCLUSIONS Treatment with CAZ-AVI +ATM or DCT may offer a clinical benefit in patients suffering with infections due to PDR K. pneumoniae. Larger studies are required to confirm our findings.
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Affiliation(s)
- Konstantinos Mantzarlis
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Efstratios Manoulakas
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Kyriaki Parisi
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Evaggelia Sdroulia
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Nikolaos Zapaniotis
- Department of Microbiology, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Vassiliki Tsolaki
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Epaminondas Zakynthinos
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
| | - Demosthenes Makris
- Department of Critical Care, University Hospital of Larissa, School of Medicine, University of Thessaly, 41110 Thessaly, Greece
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Bassetti M, Castaldo N, Fantin A, Giacobbe DR, Vena A. Antibiotic therapy for nonfermenting Gram-negative bacilli infections: future perspectives. Curr Opin Infect Dis 2023; 36:615-622. [PMID: 37846592 DOI: 10.1097/qco.0000000000000984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
PURPOSE OF REVIEW Serious infections caused by nonfermenting Gram-negative bacteria (NF-GNB) pose a significant challenge for clinicians due to the limited treatment options available, which are frequently associated with issues of toxicity and unfavourable pharmacokinetic profiles. The aim of this review is to provide a brief overview of the existing data concerning the ongoing development of antiinfective agents targeting NF-GNB. RECENT FINDINGS Several agents exhibiting efficacy against NF-GNB are under clinical investigation. Durlobactam-sulbactam and cefepime-taniborbactam emerge as promising therapeutic avenues against carbapenem-resistant Acinetobacter baumanii . Cefepime-zidebactam may serve as a suitable treatment option for urinary tract infections caused by a wide range of NF-GNB. Cefepime-enmetazobactam demonstrates potent in vitro activity against various NF-GNB strains; however, its role as an anti- Pseudomonal agent is inadequately substantiated by available data. Xeruborbactam is a wide β-lactamase inhibitor that can be associated with a range of agents, enhancing in-vitro activity of these against many NF-GNB, including those resistant to newer, broader spectrum options. Lastly, murepavadin appears to be a potential pathogen-specific solution for severe Pseudomonas infections; however, additional investigation is necessary to establish the safety profile of this compound. SUMMARY Each of the novel molecules reviewed possesses an interesting range of in-vitro activity against NF-GNB. In addition, some of them have already been proved effective in vivo, underscoring their potential as future treatment options.
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Affiliation(s)
- Matteo Bassetti
- Infectious Diseases Unit, Policlinico San Martino Hospital - IRCCS
- Department of Health Sciences (DISSAL), University of Genoa, Genoa
| | - Nadia Castaldo
- Department of Pulmonology, University of Udine and Azienda Sanitaria Universitaria Integrata di Udine, Udine, Italy
| | - Alberto Fantin
- Department of Pulmonology, University of Udine and Azienda Sanitaria Universitaria Integrata di Udine, Udine, Italy
| | - Daniele Roberto Giacobbe
- Infectious Diseases Unit, Policlinico San Martino Hospital - IRCCS
- Department of Health Sciences (DISSAL), University of Genoa, Genoa
| | - Antonio Vena
- Infectious Diseases Unit, Policlinico San Martino Hospital - IRCCS
- Department of Health Sciences (DISSAL), University of Genoa, Genoa
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18
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Gill CM, Rajkotia P, Roberts AL, Tenover FC, Nicolau DP. Directed carbapenemase testing is no longer just for Enterobacterales: cost, labor, and workflow assessment of expanding carbapenemase testing to carbapenem-resistant P. aeruginosa. Emerg Microbes Infect 2023; 12:2179344. [PMID: 36786132 PMCID: PMC9980414 DOI: 10.1080/22221751.2023.2179344] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Molecular carbapenem-resistance testing, such as for the presence of carbapenemases genes, is commonly implemented for the detection of carbapenemase-producing Enterobacterales. Carbapenemase-producing P. aeruginosa is also associated with significant morbidity and mortality, although; prevalence may be underappreciated in the United States due to a lack of carbapenemase testing. The present study sought to compare hands-on time, cost and workflow implementation of carbapenemase gene testing in Enterobacterales and P. aeruginosa isolates versus sending out isolates to a public health laboratory (PHL) for testing to assess if in-house can provide actionable results. The time to carbapenemase gene results were compared. Differences in cost for infection prevention measures were extrapolated from the time of positive carbapenemase gene detection in-house versus PHL. The median time to perform carbapenemase gene testing was 7.5 min (range 5-14) versus 10 min (range 8-22) for preparation to send isolates to the PHL. In-house testing produced same day results compared with a median of 6 days (range 3-14) to receive results from PHL. Cost of in-house testing and send outs were similar ($46.92 versus $40.53, respectively). If contact precautions for patients are implemented until carbapenemase genes are ruled out, in-house testing can save an estimated $76,836.60 annually. Extension of in-house carbapenemase testing to include P. aeruginosa provides actionable results 3-14 days earlier than PHL Standard Pathway testing, facilitating guided therapeutic decisions and infection prevention measures. Supplemental phenotypic algorithms can be implemented to curb the cost of P. aeruginosa carbapenemases testing by identifying isolates most likely to harbour carbapenemases.
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Affiliation(s)
- Christian M. Gill
- Center for Anti-Infective Research & Development Hartford Hospital, Hartford, CT, USA, Christian M. Gill Center for Anti-Infective Research & Development Hartford Hospital, Hartford, CT, USA
| | - Poonam Rajkotia
- Microbiology Laboratory Services, Hartford Healthcare Ancillary Microbiology Laboratory, Newington, CT, USA
| | - Amity L. Roberts
- Microbiology Laboratory Services, Hartford Healthcare Ancillary Microbiology Laboratory, Newington, CT, USA
| | | | - David P. Nicolau
- Center for Anti-Infective Research & Development Hartford Hospital, Hartford, CT, USA,Department of Infectious Diseases, Hartford Hospital, Hartford, CT, USA
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Witt LS, Page A, Burd EM, Ozturk T, Weiss DS, Ray SM, Satola S, Gottlieb LB. Discordant antimicrobial susceptibility and polymerase chain reaction (PCR) testing in a Klebsiella pneumoniae isolate with a carbapenemase gene. Infect Control Hosp Epidemiol 2023; 44:2100-2102. [PMID: 37652898 DOI: 10.1017/ice.2023.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- Lucy S Witt
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Georgia Emerging Infections Program, Atlanta Veterans' Affairs Medical Center, Decatur, Georgia
| | - Alex Page
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Georgia Emerging Infections Program, Atlanta Veterans' Affairs Medical Center, Decatur, Georgia
| | - Eileen M Burd
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
- Emory Antibiotic Resistance Center, Atlanta, Georgia
| | - Tugba Ozturk
- Emory Antibiotic Resistance Center, Atlanta, Georgia
| | - David S Weiss
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Emory Antibiotic Resistance Center, Atlanta, Georgia
| | - Susan M Ray
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Georgia Emerging Infections Program, Atlanta Veterans' Affairs Medical Center, Decatur, Georgia
| | - Sarah Satola
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
- Georgia Emerging Infections Program, Atlanta Veterans' Affairs Medical Center, Decatur, Georgia
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia
- Emory Antibiotic Resistance Center, Atlanta, Georgia
| | - Lindsey B Gottlieb
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia
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Dettori S, Portunato F, Vena A, Giacobbe DR, Bassetti M. Severe infections caused by difficult-to-treat Gram-negative bacteria. Curr Opin Crit Care 2023; 29:438-445. [PMID: 37641512 PMCID: PMC10919274 DOI: 10.1097/mcc.0000000000001074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
PURPOSE OF REVIEW Antimicrobial resistance (AMR) in Gram-negative bacteria (GNB) poses a significant global health concern, contributing to increased infections, mortality rates, and healthcare costs. This review discusses the main clinical manifestations, therapeutic options, and recent findings in managing antibiotic-resistant GNB, with a focus on difficult-to-treat infections. RECENT FINDINGS Difficult-to-treat resistance (DTR) is a novel classification that identifies GNB exhibiting intermediate or resistant phenotypes to first-line agents in the carbapenem, beta-lactam, and fluoroquinolone categories. The main pathogens implicated in severe infections include DTR Enterobacterales, DTR Pseudomonas aeruginosa , and DTR Acinetobacter baumannii. Although the clinical implications of DTR strains are still under investigation, certain studies have linked them to prolonged hospital stays and poor patient outcomes. SUMMARY Severe infections caused by DTR-GNB pose a formidable challenge for healthcare providers and represent a growing global health issue. The proper administration and optimization of novel antibiotics at our disposal are of paramount importance for combating bacterial resistance and improving patient prognosis.
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Affiliation(s)
- Silvia Dettori
- Infectious Diseases Unit, San Martino Policlinico Hospital - IRCCS for Oncology and Neuroscience
| | - Federica Portunato
- Infectious Diseases Unit, San Martino Policlinico Hospital - IRCCS for Oncology and Neuroscience
| | - Antonio Vena
- Infectious Diseases Unit, San Martino Policlinico Hospital - IRCCS for Oncology and Neuroscience
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Daniele Roberto Giacobbe
- Infectious Diseases Unit, San Martino Policlinico Hospital - IRCCS for Oncology and Neuroscience
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Matteo Bassetti
- Infectious Diseases Unit, San Martino Policlinico Hospital - IRCCS for Oncology and Neuroscience
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
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21
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Meng H, Yang J, Niu M, Zhu H, Zhou Y, Lu J. Risk factors and clinical outcomes of carbapenem-resistant Klebsiella pneumoniae bacteraemia in children: a retrospective study. Int J Antimicrob Agents 2023; 62:106933. [PMID: 37500022 DOI: 10.1016/j.ijantimicag.2023.106933] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 07/09/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023]
Abstract
OBJECTIVES Carbapenem-resistant Klebsiella pneumoniae (CRKP) is increasingly being identified in children, but data on the clinical outcomes in this population are limited. This study aimed to characterise the risk factors for 30-day mortality with CRKP bloodstream infection (BSI) in children. METHODS A retrospective study was performed from January 2018 to December 2021 at the First Affiliated Hospital of Zhengzhou University. Patients aged < 18 years and with CRKP BSI were included. Multivariable Cox and logistic regression were performed to determine risk factors for death and the development of septic shock following CRKP infection, respectively. RESULTS This study identified 33 neonates aged 0-4 weeks and 37 older children. The 30-day mortality rate was 39.4% in neonates and 43.2% in older children. In the neonatal population, a higher Pitt bacteremia score (HR 1.694; 95% CI 1.313-2.186; P < 0.001) was an independent risk factor for 30-day mortality. In the non-neonatal population, higher platelet count (HR 0.990; 95% CI 0.982-0.998; P = 0.010), the use of carbapenems (HR 0.212; 95% CI 0.064-0.702; P = 0.011) and appropriately targeted antimicrobial treatment (HR 0.327; 95% CI 0.111-0.969; P = 0.044) were associated with decreased 30-day mortality. Monocyte count < 0.1 × 109 cells/L (OR 3.615; 95% CI 1.165-11.444; P = 0.026) and a higher Pitt bacteremia score (OR 1.330; 95% CI 1.048-1.688; P = 0.019) were identified as risk factors for the development of septic shock. CONCLUSIONS Carbapenem-resistant Klebsiella pneumoniae BSI was associated with high mortality in children. Appropriate antimicrobial treatment is important to improve survival, but more work is needed to assess the efficacy of specific treatment regimens in children.
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Affiliation(s)
- Haiyang Meng
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Jie Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China
| | - Mengxia Niu
- Department of Pharmacy, The Third People's Hospital of Zhengzhou, Zhengzhou, China
| | - Han Zhu
- Department of Pharmacy, Anyang Maternal and Child Health Care Hospital, Anyang Children's Hospital, Anyang, China
| | - Yuke Zhou
- Department of Pharmacy, The First People's Hospital of Yiyang, Luoyang, China
| | - Jingli Lu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou, China.
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22
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Önal U, Tüzemen Ü, Kaya PK, İşçimen R, Girgin NK, Özakın C, Kahveci F, Akalın H. OXA-48 Dominance Meets Ceftazidime-Avibactam: A Battle Against Life-Threatening Carbapenem-Resistant Klebsiella pneumoniae Infections in the Intensive Care Unit. Cureus 2023; 15:e46780. [PMID: 37822692 PMCID: PMC10563373 DOI: 10.7759/cureus.46780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2023] [Indexed: 10/13/2023] Open
Abstract
Objective In this study, we aimed to describe the outcomes in ICU patients with bloodstream infection (BSI) or ventilatory-associated pneumonia (VAP) due to carbapenem-resistant Klebsiella pneumoniae (CRKP) who received ceftazidime-avibactam treatment at a tertiary care university hospital. Methods Patients aged 18 years or older who were admitted to the Anesthesiology and Reanimation ICU at Bursa Uludag University Faculty of Medicine Hospital between June 13, 2021, and July 16, 2023, and diagnosed with BSI or VAP due to CRKP were included in this study. Results A total of 42 patients treated with ceftazidime-avibactam were included. Total crude mortality rates were 33.3% on day 14 and 54.8% on day 30. Mortality rates on the 14th and 30th days were 37.5% and 62.5% in patients with BSI and 27.8% and 44.4% in patients with VAP, respectively. There was no statistically significant difference between monotherapy and combination therapy in terms of mortality rates on days 14 and 30, respectively (3/11 vs. 11/31, p=0.620; 5/11 vs. 18/31, p=0.470). Immunosuppression (10/11 vs. 13/31, p=0.005), the Sequential Organ Failure Assessment (SOFA) score ≥8 (at the initiation of treatment; 19/25 vs. 4/17, p<0.001), INCREMENT-CPE score ≥10 (12/16 vs. 3/10, p=0.024) and longer duration (in days) from culture collection to treatment initiation (5.0 ± 0.61 vs. 3.11 ± 0.48, p=0.024) were found to have a statistically significant effect on 30-day mortality. In multivariate analysis, a SOFA score ≥8 at the initiation of treatment (p=0.037, OR: 17.442, 95% CI: 1.187-256.280) was found to be a significant risk factor affecting mortality (30-day). Conclusion The mortality rates of patients with CRKP infection who were followed up in the ICU were found to be high, and it was observed that whether ceftazidime-avibactam treatment was given as a combination or monotherapy did not affect mortality. Further multicentre studies with a larger number of patients are needed to gain a comprehensive understanding of the topic, given that this treatment is typically reserved for documented infections.
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Affiliation(s)
- Uğur Önal
- Infectious Diseases, Uludag University Faculty of Medicine, Bursa, TUR
| | - Ülkü Tüzemen
- Microbiology, Uludag University Faculty of Medicine, Bursa, TUR
| | - Pınar K Kaya
- Anesthesiology and Critical Care, Uludag University, Bursa, TUR
| | - Remzi İşçimen
- Intensive Care Unit, Uludag University Faculty of Medicine, Bursa, TUR
- Anesthesiology and Critical Care, Uludag University Faculty of Medicine, Bursa, TUR
- Anesthesiology and Reanimation, Uludag University Faculty of Medicine, Bursa, TUR
| | - Nermin K Girgin
- Anesthesiology and Reanimation, Uludag University, Bursa, TUR
| | - Cüneyt Özakın
- Medical Microbiology, Uludag University Faculty of Medicine, Bursa, TUR
| | - Ferda Kahveci
- Anesthesiology and Reanimation, Uludag University, Bursa, TUR
| | - Halis Akalın
- Infectious Diseases and Clinical Microbiology, Uludag University Faculty of Medicine, Bursa, TUR
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Bavaro DF, Belati A, Diella L, Frallonardo L, Guido G, Papagni R, Pellegrino C, Brindicci G, De Gennaro N, Di Gennaro F, Denicolò S, Ronga L, Mosca A, Pomarico F, Dell'Aera M, Stufano M, Dalfino L, Grasso S, Saracino A. Loading dose plus continuous/extended infusion versus intermittent bolus of β-lactams for the treatment of Gram-negative bacteria bloodstream infections: a propensity score-adjusted retrospective cohort study. J Antimicrob Chemother 2023; 78:2175-2184. [PMID: 37428015 DOI: 10.1093/jac/dkad215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023] Open
Abstract
BACKGROUND Optimal β-lactam dosing for the treatment of Gram-negative bacteria bloodstream infections (GNB-BSIs) remains a debated issue. Herein, the efficacy and safety of a loading dose (LD) followed by extended/continuous infusion (EI/CI) versus intermittent bolus (IB) of these drugs for the treatment of GNB-BSIs was evaluated. METHODS This is a retrospective observational study enrolling patients with GNB-BSIs treated with β-lactams from 1 October 2020 to 31 March 2022. The 30 day infection-related mortality rate was assessed with Cox regression, while mortality risk reduction was evaluated by an inverse probability of treatment weighting regression adjustment (IPTW-RA) model. RESULTS Overall, 224 patients were enrolled: 140 and 84 in the IB and EI/CI groups, respectively. β-Lactam regimens were chosen according to pathogen antibiogram, clinical judgement and current guidelines. Interestingly, the LD + EI/CI regimen was associated with a significant lower mortality rate (17% versus 32%, P = 0.011). Similarly, β-lactam LD + EI/CI was significantly associated with a reduced risk of mortality at multivariable Cox regression [adjusted HR (aHR) = 0.46; 95%CI = 0.22-0.98; P = 0.046]. Finally, the IPTW-RA (adjusted for multiple covariates) was performed, showing a significant risk reduction in the overall population [-14% (95% CI = -23% to -5%)]; at the subgroup restricted analysis, a significant risk reduction (>15%) was observed in the case of GNB-BSI in severely immunocompromised patients (P = 0.003), for SOFA score > 6 (P = 0.014) and in septic shock (P = 0.011). CONCLUSIONS The use of LD + EI/CI of β-lactams in patients with a GNB-BSI may be associated with reduced mortality; also in patients with severe presentation of infection or with additional risk factors, such as immunodepression.
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Affiliation(s)
- Davide Fiore Bavaro
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Alessandra Belati
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Lucia Diella
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Luisa Frallonardo
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Giacomo Guido
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Roberta Papagni
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Carmen Pellegrino
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Gaetano Brindicci
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Nicolò De Gennaro
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Francesco Di Gennaro
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Sofia Denicolò
- Section of Microbiology and Virology, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Luigi Ronga
- Section of Microbiology and Virology, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Adriana Mosca
- Section of Microbiology and Virology, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Francesco Pomarico
- Hospital Pharmacy Department, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Maria Dell'Aera
- Hospital Pharmacy Department, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Monica Stufano
- Anesthesia and Intensive Care Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Lidia Dalfino
- Anesthesia and Intensive Care Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Salvatore Grasso
- Anesthesia and Intensive Care Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
| | - Annalisa Saracino
- Clinic of Infectious Diseases, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari, Policlinic of Bari, Piazza Giulio Cesare n. 11, 70124 Bari, Italy
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Anton-Vazquez V, Evans TJ, Fernando S, Somasunderam D, David K, Melzer M, Hawkins L, Morris-Jones S, Arias M, Drazho B, Dall’Antonia M, Planche T. Clinical, microbiological characteristics and predictors of mortality in patients with carbapenemase-producing Enterobacterales bloodstream infections: a multicentre study. Infect Prev Pract 2023; 5:100298. [PMID: 37534297 PMCID: PMC10393540 DOI: 10.1016/j.infpip.2023.100298] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/04/2023] [Indexed: 08/04/2023] Open
Abstract
Objectives To investigate the clinical, microbiological characteristics and outcomes of patients with bloodstream infections (BSI) due to carbapenemase-producing Enterobacterales (CPE). Methods A multicentre retrospective observational study of patients with BSIs due to CPE admitted to six UK hospitals was conducted between 2011 and 2021. Multivariate analysis was used to identify factors predicting 30-day case fatality rate (CFR). Results There were 84 episodes of CPE-BSIs, 37 (44%) due to OXA-48, 35 (42%) to metallo-betalactamases (MBL) and 12 (14%) to KPC. 63% of patients were male with a median age of 64 years. Common organisms included Klebsiella spp. (61%), Escherichia coli (20%) and Enterobacter spp. (13%). Urinary devices were more often involved in OXA-48 BSIs (12/37; 32%) compared to infections caused by MBL and KPC (4/35; 11% and 1/12; 8%; P = 0.046). In contrast, central venous catheters were more frequently present in KPC-BSIs (10/12; 92%) compared with OXA-48 and MBL (11/37; 30% and 20/35; 57%; P = 0.002). Effective definitive antimicrobials were received by 72/84 (86%) patients, comprising monotherapy (32/72; 44%) or combination therapy (40/72; 56%). 30-day case fatality rate (CFR) was 38%. Sepsis or septic shock was associated with death [OR 3.81 (CI 1.19-12.14), P = 0.024]. Conclusion Strategies targeting high-risk patients and adherence to infection prevention bundles for urinary devices and central venous catheters can reduce OXA-48 and KPC-BSIs. Early recognition and management of severe sepsis, prompt initiation of appropriate antimicrobial therapy and development of novel antimicrobials are crucial to mitigate the high CFR associated with CPE-BSIs.
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Affiliation(s)
- Vanesa Anton-Vazquez
- Infection Care Group, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Terry John Evans
- Medical Microbiology, University College London Hospital NHS Foundation Trust, London, UK
| | - Samitha Fernando
- Infectious Diseases and Medical Microbiology, King's College Hospital NHS Foundation Trust, London, UK
| | - Donald Somasunderam
- Department of Infection, Barts Health NHS Trust, Royal London Hospital, London, UK
| | - Kate David
- Department of Infection, Barts Health NHS Trust, Royal London Hospital, London, UK
| | - Mark Melzer
- Department of Infection, Barts Health NHS Trust, Royal London Hospital, London, UK
| | - Lois Hawkins
- Medical Microbiology, Epsom and St. Helier University Hospitals NHS Trust, London, UK
| | - Stephen Morris-Jones
- Medical Microbiology, University College London Hospital NHS Foundation Trust, London, UK
| | - Mauricio Arias
- Infectious Diseases and Medical Microbiology, King's College Hospital NHS Foundation Trust, London, UK
| | - Borana Drazho
- Infectious Diseases and Medical Microbiology, King's College Hospital NHS Foundation Trust, London, UK
| | - Martino Dall’Antonia
- Medical Microbiology, Queen Elizabeth Hospital, Lewisham & Greenwich NHS Trust, London, UK
| | - Timothy Planche
- Infection Care Group, St George's University Hospitals NHS Foundation Trust, London, UK
- Medical Microbiology, Southwest London Pathology, St. George's Hospital, London, UK
- Institute of Infection and Immunity, St. George's University of London, London, UK
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Xiao S, Fu Q, Miao Y, Zhao M, Lu S, Xu J, Zhao W. Clinical efficacy and drug resistance of ceftazidime-avibactam in the treatment of Carbapenem-resistant gram-negative bacilli infection. Front Microbiol 2023; 14:1198926. [PMID: 37664109 PMCID: PMC10469675 DOI: 10.3389/fmicb.2023.1198926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 07/17/2023] [Indexed: 09/05/2023] Open
Abstract
Objective To examine the clinical efficacy, safety, and resistance of Ceftazidime-Avibactam (CAZ-AVI) in patients with Carbapenem-resistant Gram-negative bacilli (CR-GNB) infections. Methods We retrospectively analyzed relevant data of CR-GNB infected patients receiving CAZ-AVI treatment, analyzed relevant factors affecting drug efficacy, and compared the efficacy and safety with patients receiving Polymyxin B treatment. Results A total of 139 patients were included. Agranulocytosis, septic shock, SOFA score, and CAZ-AVI treatment course were independent risk factors affecting the prognosis of patients with CR-GNB infection treated with CAZ-AVI while prolonging the treatment course of CAZ-AVI was the only protective factor for bacterial clearance. The fundamental indicators showed no statistically significant differences between CAZ-AVI and Polymyxin B treatment groups. At the same time, the proportion of patients treated with monotherapy was significantly higher in the CAZ-AVI group than in the Polymyxin B group (37.2% vs. 8.9%, p < 0.05), the 30-day mortality rate of the CAZ-AVI treatment group (27.7% vs. 46.7%, p = 0.027) was lower than that of the Polymyxin B treatment group. The 30-day clinical cure rate (59.6% vs. 40% p = 0.030) and 14-day microbiological clearance rate (42.6% vs. 24.4%, p = 0.038) were significantly higher in the CAZ-AVI than in the Polymyxin B treatment group. Eighty nine patients were monitored for CAZ-AVI resistance, and the total resistance rate was 14.6% (13/89). The resistance rates of Carbapenem-resistant Klebsiella pneumoniae (CRKP) and Carbapenem-resistant Pseudomonas aeruginosa (CRPA) to CAZ-AVI were 13.5 and 15.4%, respectively. Conclusion CAZ-AVI has shown high clinical efficacy and bacterial clearance in treating CR-GNB infections. Compared with Polymyxin B, CAZ-AVI significantly improved the outcome of mechanical ventilation in patients with septic shock, agranulocytosis, Intensive Care Unit (ICU) patients, bloodstream infection, and patients with SOFA score > 6, and had a lower incidence of adverse events. We monitored the emergence of CAZ-AVI resistance and should strengthen the monitoring of drug susceptibility in clinical practice and the rational selection of antibiotic regimens to delay the onset of resistance.
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Affiliation(s)
- Shuang Xiao
- Department of Infectious Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qianwen Fu
- Department of Critical Care Medicine, The First People's Hospital of Tonglu, Hangzhou, China
| | - Youhan Miao
- Department of Infectious Diseases, The Third Affiliated Hospital of Nantong University, Nantong, China
| | - Manna Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shengwei Lu
- Department of Infectious Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jie Xu
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Weifeng Zhao
- Department of Infectious Diseases, The First Affiliated Hospital of Soochow University, Suzhou, China
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Taddei R, Riccardi N, Tiseo G, Galfo V, Biancofiore G. Early Intra-Abdominal Bacterial Infections after Orthotopic Liver Transplantation: A Narrative Review for Clinicians. Antibiotics (Basel) 2023; 12:1316. [PMID: 37627736 PMCID: PMC10451386 DOI: 10.3390/antibiotics12081316] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Despite recent advances in the transplant field, infectious complications after orthotopic liver transplantation (OLT) are major causes of morbidity and mortality. Bacterial intra-abdominal infections (IAIs) are predominant during the first month post-transplantation and affect patient and graft survival. Recently, the emergence of multidrug resistant bacteria has generated great concern in OLT patients. We performed this narrative review of the literature in order to propose a "ready-to-use" flowchart for reasoned empirical antibiotic therapy in the case of suspected post-OLT IAIs. The review was ultimately organized into four sections: "Epidemiology and predisposing factors for IAI"; "Surgical-site infections and perioperative prophylaxis"; "MDRO colonization and infections"; and "Reasoned-empirical antibiotic therapy in early intra-abdominal infections post OLT and source control". Multidisciplinary teamwork is warranted to individualize strategies for the prevention and treatment of IAIs in OLT recipients, taking into account each patient's risk factors, the surgical characteristics, and the local bacterial epidemiology.
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Affiliation(s)
- Riccardo Taddei
- Division of Transplant Anesthesia and Critical Care, Department of Anesthesia, Azienda Ospedaliero Universitaria Pisana, University of Pisa, 56124 Pisa, Italy;
| | - Niccolò Riccardi
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, 56124 Pisa, Italy; (N.R.); (G.T.); (V.G.)
| | - Giusy Tiseo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, 56124 Pisa, Italy; (N.R.); (G.T.); (V.G.)
| | - Valentina Galfo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero Universitaria Pisana, University of Pisa, 56124 Pisa, Italy; (N.R.); (G.T.); (V.G.)
| | - Giandomenico Biancofiore
- Division of Transplant Anesthesia and Critical Care, Department of Anesthesia, Azienda Ospedaliero Universitaria Pisana, University of Pisa, 56124 Pisa, Italy;
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Cogliati Dezza F, Covino S, Petrucci F, Sacco F, Viscido A, Gavaruzzi F, Ceccarelli G, Raponi G, Borrazzo C, Alessandri F, Mastroianni CM, Venditti M, Oliva A. Risk factors for carbapenem-resistant Acinetobacter baumannii (CRAB) bloodstream infections and related mortality in critically ill patients with CRAB colonization. JAC Antimicrob Resist 2023; 5:dlad096. [PMID: 37577156 PMCID: PMC10412853 DOI: 10.1093/jacamr/dlad096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/21/2023] [Indexed: 08/15/2023] Open
Abstract
Background Among MDR bacteria, carbapenem-resistant Acinetobacter baumannii (CRAB) is a major concern due to the limited therapeutic options. During the COVID-19 pandemic, a worrying increase in the spread of CRAB infections was reported. Objectives The study assessed the risk factors for CRAB bloodstream infection (BSI) in patients admitted to the ICU with CRAB colonization, and the related mortality risk factors. Methods We conducted a single-centre, observational, prospective study; all consecutive patients with CRAB colonization admitted to the ICU of a tertiary hospital in Rome from January 2021 to September 2022 were included in the study. Univariate and multivariate analyses were performed to investigate BSI and mortality risk factors. Results Overall, 129 patients were included in the study; 57 (44%) out of these developed BSI. In our study population, at the multivariable analysis the Charlson comorbidity index (CCI) (P = 0.026), COVID-19 (P < 0.001), multisite colonization (P = 0.016) and the need for mechanical ventilation (P = 0.024) were risk factors independently associated with BSI development. Furthermore, age (P = 0.026), CCI (P < 0.001), septic shock (P = 0.001) and Pitt score (P < 0.001) were independently associated with mortality in the BSI patients. Instead, early appropriate therapy (P = 0.002) and clinical improvement within 72 h (P = 0.011) were shown to be protective factors. Conclusions In critically ill patients colonized by CRAB, higher CCI, multisite colonization and the need for mechanical ventilation were identified as risk factors for BSI onset. These predictors could be useful to identify patients at highest risk of BSI.
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Affiliation(s)
| | - Sara Covino
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Flavia Petrucci
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Federica Sacco
- Microbiology and Virology Laboratory, Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Agnese Viscido
- Microbiology and Virology Laboratory, Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Francesca Gavaruzzi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Giancarlo Ceccarelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Gianmarco Raponi
- Microbiology and Virology Laboratory, Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Cristian Borrazzo
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Francesco Alessandri
- Department of General and Specialistic Surgery, Sapienza University of Rome, Rome, Italy
| | | | - Mario Venditti
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Alessandra Oliva
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
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Oliva A, Campogiani L, Savelloni G, Vitale P, Lodi A, Sacco F, Imeneo A, Volpicelli L, Polani R, Raponi G, Sarmati L, Venditti M. Clinical Characteristics and Outcome of Ceftazidime/Avibactam-Resistant Klebsiella pneumoniae Carbapenemase-Producing Klebsiella pneumoniae Infections: A Retrospective, Observational, 2-Center Clinical Study. Open Forum Infect Dis 2023; 10:ofad327. [PMID: 37476077 PMCID: PMC10354859 DOI: 10.1093/ofid/ofad327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/26/2023] [Indexed: 07/22/2023] Open
Abstract
Background Recently, Klebsiella pneumoniae carbapenemase (KPC)-producing Klebsiella pneumoniae (KPC-Kp) with resistance to ceftazidime/avibactam (CZA-R) has been described, including KPC variants that restore carbapenem susceptibility. The aim of the study was to analyze the clinical characteristics and outcomes of infections caused by CZA-R KPC-Kp. Methods From 2019 to 2021, a retrospective 2-center study including patients with infections due to CZA-R KPC-Kp hospitalized at 2 academic hospitals in Rome was conducted. Demographic and clinical characteristics were collected. Principal outcome was 30-day all-cause mortality. Statistical analyses were performed with Stata-IC17 software. Results Overall, 59 patients were included (mean age, 64.4 ± 14.6 years; mean Charlson comorbidity index score, 4.5 ± 2.7). Thirty-four patients (57.6%) had infections caused by CZA-R and meropenem (MEM)-susceptible strains. A previous CZA therapy was observed in 40 patients (67.8%), mostly in patients with MEM-susceptible KPC variant (79.4% vs 52%, P = .026). Primary bacteremia was observed in 28.8%, followed by urinary tract infections and pneumonia. At infection onset, septic shock was present in 15 subjects (25.4%). After adjustment for confounders, only the presence of septic shock was independently associated with mortality (P = .006). Conclusions Infections due to CZA-R KPC-Kp often occur in patients who had previously received CZA, especially in the presence of strains susceptible to MEM. Nevertheless, one-third of patients had never received CZA before KPC-Kp CZA-R. Since the major driver for mortality was infection severity, understanding the optimal therapy in patients with KPC-Kp CZA-R infections is of crucial importance.
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Affiliation(s)
- Alessandra Oliva
- Correspondence: Assistant Professor Oliva Alessandra, MD, PhD, Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy. ()
| | - Laura Campogiani
- Infectious Disease Clinic, Policlinico Tor Vergata, Rome, Italy
- Department of System Medicine, Tor Vergata University, Rome, Italy
| | - Giulia Savelloni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Pietro Vitale
- Infectious Disease Clinic, Policlinico Tor Vergata, Rome, Italy
| | - Alessandra Lodi
- Infectious Disease Clinic, Policlinico Tor Vergata, Rome, Italy
| | - Frederica Sacco
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | | | - Lorenzo Volpicelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Riccardo Polani
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Giammarco Raponi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Loredana Sarmati
- Infectious Disease Clinic, Policlinico Tor Vergata, Rome, Italy
- Department of System Medicine, Tor Vergata University, Rome, Italy
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Falcone M, Tiseo G, Carbonara S, Marino A, Di Caprio G, Carretta A, Mularoni A, Mariani MF, Maraolo AE, Scotto R, Dalfino L, Corbo L, Macera M, Medaglia AA, d'Errico ML, Gioè C, Sgroi C, Del Vecchio RF, Ceccarelli G, Albanese A, Buscemi C, Talamanca S, Raponi G, Foti G, De Stefano G, Franco A, Iacobello C, Corrao S, Morana U, Pieralli F, Gentile I, Santantonio T, Cascio A, Coppola N, Cacopardo B, Farcomeni A, Venditti M, Menichetti F. Mortality Attributable to Bloodstream Infections Caused by Different Carbapenem-Resistant Gram-Negative Bacilli: Results From a Nationwide Study in Italy (ALARICO Network). Clin Infect Dis 2023; 76:2059-2069. [PMID: 36801828 DOI: 10.1093/cid/ciad100] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 02/11/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023] Open
Abstract
BACKGROUND Our aim was to analyze mortality attributable to carbapenem-resistant (CR) gram-negative bacilli (GNB) in patients with bloodstream infections (BSIs). METHODS Prospective multicentric study including patients with GNB-BSI from 19 Italian hospitals (June 2018-January 2020). Patients were followed-up to 30 days. Primary outcomes were 30-day mortality and attributable mortality. Attributable mortality was calculated in the following groups: Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacterales, metallo-β-lactamases (MBL)-producing Enterobacterales, CR-Pseudomonas aeruginosa (CRPA), CR-Acinetobacter baumannii (CRAB). A multivariable analysis with hospital fixed-effect was built to identify factors associated with 30-day mortality. Adjusted OR (aORs) were reported. Attributable mortality was calculated according to the DRIVE-AB Consortium. RESULTS Overall, 1276 patients with monomicrobial GNB BSI were included: 723/1276 (56.7%) carbapenem-susceptible (CS)-GNB, 304/1276 (23.8%) KPC-, 77/1276 (6%) MBL-producing CRE, 61/1276 (4.8%) CRPA, and 111/1276 (8.7%) CRAB BSI. Thirty-day mortality in patients with CS-GNB BSI was 13.7% compared to 26.6%, 36.4%, 32.8% and 43.2% in patients with BSI by KPC-CRE, MBL-CRE, CRPA and CRAB, respectively (P < .001). On multivariable analysis, age, ward of hospitalization, SOFA score, and Charlson Index were factors associated with 30-day mortality, while urinary source of infection and early appropriate therapy resulted protective factors. Compared to CS-GNB, MBL-producing CRE (aOR 5.86, 95% CI 2.72-12.76), CRPA (aOR 1.99, 95% CI 1.48-5.95) and CRAB (aOR 2.65, 95% CI 1.52-4.61) were significantly associated with 30-day mortality. Attributable mortality rates were 5% for KPC-, 35% for MBL, 19% for CRPA, and 16% for CRAB. CONCLUSIONS In patients with BSIs, carbapenem-resistance is associated with an excess of mortality, with MBL-producing CRE carrying the highest risk of death.
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Affiliation(s)
- Marco Falcone
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Giusy Tiseo
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Sergio Carbonara
- Department of Biomedical Sciences and Human Oncology, Clinic of Infectious Diseases, University of Bari "Aldo Moro," Bari, Italy
| | - Andrea Marino
- Unit of Infectious Diseases, ARNAS Garibaldi, Nesima Hospital, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Giovanni Di Caprio
- Infectious Diseases Unit, AORN Sant' Anna e San Sebastiano, Caserta, Italy
| | - Anna Carretta
- Department of Infectious Diseases, University Hospital "Ospedali Riuniti" of Foggia, Foggia, Italy
| | - Alessandra Mularoni
- Department of Infectious Diseases, Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione (IRCCS ISMETT), Palermo, Italy
| | - Michele Fabiano Mariani
- Department of Biomedical Sciences and Human Oncology, Clinic of Infectious Diseases, University of Bari "Aldo Moro," Bari, Italy
| | - Alberto Enrico Maraolo
- First Division of Infectious Diseases, Cotugno Hospital, AORN Ospedali dei Colli, Naples, Italy
| | - Riccardo Scotto
- Section of Infectious Diseases, Department of Clinical Medicine and Surgery, University of Naples "Federico II," Naples, Italy
| | - Lidia Dalfino
- Anesthesia and Intensive Care Unit, Azienda Ospedaliero-Universitaria Consorziale Policlinico di Bari, Bari, Italy
| | - Lorenzo Corbo
- Medicina per la complessità assistenziale 1 AOU Careggi, Florence, Italy
| | - Margherita Macera
- Department of Mental Health and Public Medicine, University of Campania "Luigi Vanvitelli," Naples, Italy
| | | | - Maria Luca d'Errico
- Department of Infectious Diseases, University Hospital "Ospedali Riuniti" of Foggia, Foggia, Italy
| | - Claudia Gioè
- Infectious and Tropical Disease Unit, AOU Policlinico "P. Giaccone," Palermo, Italy
| | | | | | - Giancarlo Ceccarelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | | | - Calogero Buscemi
- Infectious Diseases Unit, ARNAS Ospedale Civico of Palermo, Palermo, Italy
| | - Simona Talamanca
- Dipartimento di Biomedicina Sperimentale e Neuroscienze Cliniche, Università di Palermo, Palermo, Italy
| | - Giammarco Raponi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
- Microbiology and Virology Unit, University Hospital Policlinico Umberto I, Rome, Italy
| | - Giuseppe Foti
- Infetious Diseases Unit, "Bianchi-Melacrino-Morelli" Hospital, Reggio Calabria, Italy
| | - Giulio De Stefano
- Department of Infectious Diseases, Hospital of Potenza and Matera, Matera, Italy
| | - Antonina Franco
- Department of Infectious Diseases, Umberto I Public Hospital, Siracusa, Italy
| | - Carmelo Iacobello
- UOC Malattie Infettive, Azienda Ospedaliera per l'Emergenza, Cannizzaro, Catania, Italy
| | - Salvatore Corrao
- Department of Clinical Medicine, Internal Medicine Division, ARNAS Civico Di Cristina Benfratelli Hospital Trust, Palermo, Italy
| | | | - Filippo Pieralli
- Intermediate Care Unit, Careggi University Hospital, Florence, Italy
| | - Ivan Gentile
- Section of Infectious Diseases, Department of Clinical Medicine and Surgery, University of Naples "Federico II," Naples, Italy
| | - Teresa Santantonio
- Department of Infectious Diseases, University Hospital "Ospedali Riuniti" of Foggia, Foggia, Italy
| | - Antonio Cascio
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties G D'Alessandro, University of Palermo, Palermo, Italy
| | - Nicola Coppola
- Department of Mental Health and Public Medicine, University of Campania "Luigi Vanvitelli," Naples, Italy
| | - Bruno Cacopardo
- Unit of Infectious Diseases, ARNAS Garibaldi, Nesima Hospital, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Alessio Farcomeni
- Department of Economics & Finance, University of Rome "Tor Vergata," Rome, Italy
| | - Mario Venditti
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Francesco Menichetti
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
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Russo A, Pallone R, Trecarichi EM, Torti C. Lights and Shadows of Sepsis Management: Challenges and Future Perspectives. Int J Mol Sci 2023; 24:ijms24119426. [PMID: 37298376 DOI: 10.3390/ijms24119426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
The complex interaction between microorganisms, the host's immune response, and [...].
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Affiliation(s)
- Alessandro Russo
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, 'Magna Graecia' University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy
| | - Rita Pallone
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, 'Magna Graecia' University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy
| | - Enrico Maria Trecarichi
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, 'Magna Graecia' University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy
| | - Carlo Torti
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, 'Magna Graecia' University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy
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Xu S, Song Z, Han F, Zhang C. Effect of appropriate empirical antimicrobial therapy on mortality of patients with Gram-negative bloodstream infections: a retrospective cohort study. BMC Infect Dis 2023; 23:344. [PMID: 37221465 DOI: 10.1186/s12879-023-08329-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/14/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND Little evidence exists regarding the prevalence of pathogens in bloodstream infections (BSIs), the mortality risk, and the benefit of combination therapy over monotherapy. This study aims to describe patterns of empiric antimicrobial therapy, and the epidemiology of Gram-negative pathogens, and to investigate the effect of appropriate therapy and appropriate combination therapy on the mortality of patients with BSIs. METHODS This was a retrospective cohort study including all patients with BSIs of Gram-negative pathogens from January 2017 to December 2022 in a Chinese general hospital. The in-hospital mortality was compared between appropriate and inappropriate therapy, and between monotherapy and combination therapy for patients receiving appropriate therapy. We used Cox regression analysis to identify factors independently associated with in-hospital mortality. RESULTS We included 205 patients in the study, of whom 147 (71.71%) patients received appropriate therapy compared with 58 (28.29%) who received inappropriate therapy. The most common Gram-negative pathogen was Escherichia coli (37.56%). 131 (63.90%) patients received monotherapy and 74 (36.10%) patients received combination therapy. The in-hospital mortality was significantly lower in patients administered appropriate therapy than inappropriate therapy (16.33% vs. 48.28%, p = 0.004); adjusted hazard ratio [HR] 0.55 [95% CI 0.35-0.84], p = 0.006). In-hospital mortality was also not different in combination therapy and monotherapy in the multivariate Cox regression analyses (adjusted HR 0.42 [95% CI 0.15-1.17], p = 0.096). However, combination therapy was associated with lower mortality than monotherapy in patients with sepsis or septic shock (adjusted HR 0.94 [95% CI 0.86-1.02], p = 0.047). CONCLUSIONS Appropriate therapy was associated with a protective effect on mortality among patients with BSIs due to Gram-negative pathogens. Combination therapy was associated with improved survival in patients with sepsis or septic shock. Clinicians need to choose optical empirical antimicrobials to improve survival outcomes in patients with BSIs.
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Affiliation(s)
- Shanshan Xu
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Zhihui Song
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Furong Han
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Chao Zhang
- Department of Pharmacy, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
- , No.1 Dongjiaomin Lane, Beijing, Dongcheng District, China.
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Zhang L, Zhen S, Shen Y, Zhang T, Wang J, Li J, Lin Q, Xiao Z, Zheng Y, Jiang E, Han M, Wang J, Feng S. Bloodstream infections due to Carbapenem-Resistant Enterobacteriaceae in hematological patients: assessment of risk factors for mortality and treatment options. Ann Clin Microbiol Antimicrob 2023; 22:41. [PMID: 37202758 DOI: 10.1186/s12941-023-00586-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 04/14/2023] [Indexed: 05/20/2023] Open
Abstract
PURPOSE Bloodstream infection (BSI) caused by Carbapenem-Resistant Enterobacteriaceae (CRE) are associated with poor outcomes in hematological patients. The aim of this study was to identify risk factors for mortality and evaluate the value of epidemiological feature of carbapenemases in guiding antimicrobial treatment options. METHODS Hematological patients with monomicrobial CRE BSI between January 2012 and April 2021 were included. The primary outcome was all-cause mortality 30 days after BSI onset. RESULTS A total of 94 patients were documented in the study period. Escherichia coli was the most common Enterobacteriaceae, followed by Klebsiella pneumoniae. 66 CRE strains were tested for carbapenemase genes, and 81.8% (54/66) were positive, including NDM (36/54), KPC (16/54), IMP (1/54). Besides, one E. coli isolate was found to express both NDM and OXA-48-like genes. Overall, 28 patients received an antimicrobial treatment containing ceftazidime-avibactam (CAZ-AVI), of which 21 cases were combined with aztreonam. The remaining 66 patients were treated with other active antibiotics (OAAs). The 30-day mortality rate was 28.7% (27/94) for all patients, and was only 7.1% ((2/28) for patients treated with CAZ-AVI. In multivariate analysis, the presence of septic shock at BSI onset (OR 10.526, 95% CI 1.376-76.923) and pulmonary infection (OR 6.289, 95% CI 1.351-29.412) were independently risk factors for 30-day mortality. Comparing different antimicrobial regimens, CAZ-AVI showed a significant survive benefit than OAAs (OR 0.068, 95% CI 0.007-0.651). CONCLUSION CAZ-AVI-containing regimen is superior to OAAs for CRE BSI. As the predominance of blaNDM in our center, we recommend the combination with aztreonam when choose CAZ-AVI.
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Affiliation(s)
- Lining Zhang
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Sisi Zhen
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Yuyan Shen
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Tingting Zhang
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Jieru Wang
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Jia Li
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Qingsong Lin
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China.
| | - Zhijian Xiao
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Yizhou Zheng
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Erlie Jiang
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Mingzhe Han
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Jianxiang Wang
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Sizhou Feng
- Hematopoietic Stem Cell Transplantation Center, State Key Laboratory of Experimental Hematology, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, National Clinical Research Center for Blood Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China.
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Yang P, Li Y, Wang X, Chen N, Lu X. Efficacy and safety of ceftazidime-avibactam versus polymyxins in the treatment of carbapenem-resistant Enterobacteriaceae infection: a systematic review and meta-analysis. BMJ Open 2023; 13:e070491. [PMID: 37137556 PMCID: PMC10163451 DOI: 10.1136/bmjopen-2022-070491] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
OBJECTIVES Carbapenem-resistant Enterobacteriaceae is increasingly recognised as a significant public health concern. Ceftazidime-avibactam (CAZ-AVI) and polymyxins are considered as the last therapeutic options worldwide. This is the first meta-analysis of recently published data to compare the clinical efficacy and safety of CAZ-AVI with polymyxins in the treatment of carbapenem-resistant Enterobacteriaceae infections. DESIGN Systematic review and meta-analysis. DATA SOURCES PubMed, Embase and the Cochrane Library were systematically searched, for publications in any language, from database inception to February 2023. ELIGIBILITY CRITERIA FOR SELECTING STUDIES Studies comparing the clinical efficacy and safety of CAZ-AVI with polymyxins were included. Mortality, clinical success, microbiological eradication and nephrotoxicity were assessed as the main outcomes. DATA EXTRACTION AND SYNTHESIS Literature screening, data extraction and the quality evaluation of studies were conducted by two researchers independently, with disagreements resolved by another researcher. The Newcastle-Ottawa Scale was used to assess the bias risk for the included studies. Review Manager V.5.3 was employed for the meta-analysis. RESULTS The meta-analysis included seven retrospective and four prospective cohort studies with 1111 patients enrolled. The CAZ-AVI groups demonstrated a lower 30-day mortality (risk ratio (RR)=0.48, 95% CI of 0.37 to 0.63, I2=10%, p<0.0001) in nine studies with 766 patients; higher clinical success (RR=1.71, 95% CI 1.33 to 2.20, I2=35%, p<0.0001) in four studies with 463 patients; and lower nephrotoxicity in seven studies with 696 patients (RR=0.42, 95% CI 0.23 to 0.77, I2=35%, p<0.05). However, no significant difference in microbiological eradication rates was observed in 249 patients from two studies (RR=1.16, 95% CI 0.97 to 1.39, I2=0, p>0.05). CONCLUSION Available evidence suggested that CAZ-AVI treatment held a dominant position with respect to efficacy and safety compared with polymyxins in carbapenem-resistant Enterobacteriaceae infections. However, the analysis included only observational studies, and high-quality, large-scale, multicentre, double-blind randomised controlled trials are needed to confirm the advantage of CAZ-AVI.
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Affiliation(s)
- Ping Yang
- Department of Clinical Pharmacy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, Hangzhou, People's Republic of China
| | - Yinyan Li
- Department of Clinical Pharmacy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiaojuan Wang
- Department of Clinical Pharmacy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Na Chen
- Department of Clinical Pharmacy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiaoyang Lu
- Department of Clinical Pharmacy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Cortegiani A, Antonelli M, Falcone M, Giarratano A, Girardis M, Leone M, Pea F, Stefani S, Viaggi B, Viale P. Rationale and clinical application of antimicrobial stewardship principles in the intensive care unit: a multidisciplinary statement. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE (ONLINE) 2023; 3:11. [PMID: 37386615 DOI: 10.1186/s44158-023-00095-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 04/21/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND Antimicrobial resistance represents a major critical issue for the management of the critically ill patients hospitalized in the intensive care unit (ICU), since infections by multidrug-resistant bacteria are characterized by high morbidity and mortality, high rates of treatment failure, and increased healthcare costs worldwide. It is also well known that antimicrobial resistance can emerge as a result of inadequate antimicrobial therapy, in terms of drug selection and/or treatment duration. The application of antimicrobial stewardship principles in ICUs improves the quality of antimicrobial therapy management. However, it needs specific considerations related to the critical setting. METHODS The aim of this consensus document gathering a multidisciplinary panel of experts was to discuss principles of antimicrobial stewardship in ICU and to produce statements that facilitate their clinical application and optimize their effectiveness. The methodology used was a modified nominal group discussion. CONCLUSION The final set of statements underlined the importance of the specific interpretation of antimicrobial stewardship's principles in critically ill patient management, quasi-targeted therapy, the use of rapid diagnostic methods, the personalization of antimicrobial therapies' duration, obtaining microbiological surveillance data, the use of PK/PD targets, and the use of specific indicators in antimicrobial stewardship programs.
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Affiliation(s)
- Andrea Cortegiani
- Department of Surgical, Oncological and Oral Science, University of Palermo, Via Liborio Giuffrè 5, 90127, Palermo, Italy.
- Department of Anaesthesia, Intensive Care and Emergency, University Hospital Policlinico Paolo Giaccone, 90127, Palermo, Italy.
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
- Anesthesia and Intensive Care, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Marco Falcone
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliera Universitaria Pisana, University of Pisa, Pisa, Italy
| | - Antonino Giarratano
- Department of Surgical, Oncological and Oral Science, University of Palermo, Via Liborio Giuffrè 5, 90127, Palermo, Italy
- Department of Anaesthesia, Intensive Care and Emergency, University Hospital Policlinico Paolo Giaccone, 90127, Palermo, Italy
| | - Massimo Girardis
- Intensive Care Unit, University Hospital of Modena, Modena, Italy
| | - Marc Leone
- Department of Anaesthesia and Intensive Care Unit, Aix-Marseille University, AP-HM, North Hospital, Marseille, France
| | - Federico Pea
- Department of Medical and Surgical Sciences, Alma Mater Studiorum-University of Bologna, 40138, Bologna, Italy
- Clinical Pharmacology Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, 40138, Bologna, Italy
| | - Stefania Stefani
- Microbiology Section, Dept of Biomedical and Biotechnological Science, University of Catania, Catania, Italy
- Unità Operativa Complessa (UOC) Laboratory Analysis, University Hospital Policlinico-San Marco, Catania, Italy
| | - Bruno Viaggi
- Department of Anesthesiology, Neuro-Intensive Care Unit, Careggi University Hospital, 50139, Florence, Italy
| | - Pierluigi Viale
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Infectious Disease Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
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Boattini M, Bianco G, Charrier L, Comini S, Iannaccone M, Almeida A, Cavallo R, De Rosa FG, Costa C. Rapid diagnostics and ceftazidime/avibactam for KPC-producing Klebsiella pneumoniae bloodstream infections: impact on mortality and role of combination therapy. Eur J Clin Microbiol Infect Dis 2023; 42:431-439. [PMID: 36806056 DOI: 10.1007/s10096-023-04577-x] [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: 10/17/2022] [Accepted: 02/14/2023] [Indexed: 02/23/2023]
Abstract
This study was aimed at investigating risk factors for mortality in patients suffering from KPC-producing Klebsiella pneumoniae (KPC-Kp) bloodstream infections (BSIs), evaluating the impact of rapid diagnostics and ceftazidime/avibactam use. This observational retrospective study (January 2017-May 2021) included all patients with a KPC-Kp BSI. Uni-multivariable analyses were carried out to evaluate the effect of clinical variables on both in-hospital death (IHD) and 30-day all-cause mortality, and the role of the combination of ceftazidime/avibactam plus polymyxin. One hundred and ninety-six patients met the study's inclusion criteria. Older age, having undergone renal replacement therapy during the 30 days preceding the KPC-Kp BSI onset, having an INCREMENT-CPE score ≥ 8, and having suffered from a superimposed and/or following KPC-Kp BSI treatment candidemia were found to be the main factors associated with both mortality rates. Among protective factors, the centrality of ceftazidime/avibactam in monotherapy (IHD: OR: 0.34; CI 95%: 0.11-1.00-30-day all-cause mortality: OR: 0.18; CI 95%: 0.04-0.77) or combination (IHD: OR: 0.51; CI 95%: 0.22-1.19-30-day all-cause mortality: OR: 0.62; CI 95%: 0.21-1.84) emerged and became even more evident once the effect of ceftazidime/avibactam plus polymyxin was removed. Rapid diagnostics may be useful to adopt more effective strategies for the treatment of KPC-Kp BSI patients and implement infection control measures, even if not associated with higher patient survival. Ceftazidime/avibactam, even when used alone, represents an important option against KPC-Kp, while combined use with polymyxin might not have altered its efficacy. Patient comorbidities, severity of BSI, and complications such as candidemia were confirmed to have a significant burden on survival.
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Affiliation(s)
- Matteo Boattini
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Corso Bramante 88/90, 10126, Turin, Italy. .,Department of Public Health and Paediatrics, University of Torino, Turin, Italy.
| | - Gabriele Bianco
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Corso Bramante 88/90, 10126, Turin, Italy
| | - Lorena Charrier
- Department of Public Health and Paediatrics, University of Torino, Turin, Italy
| | - Sara Comini
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Corso Bramante 88/90, 10126, Turin, Italy.,Department of Public Health and Paediatrics, University of Torino, Turin, Italy
| | - Marco Iannaccone
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Corso Bramante 88/90, 10126, Turin, Italy
| | - André Almeida
- Department of Internal Medicine 4, Hospital de Santa Marta, Central Lisbon Hospital Centre, Lisbon, Portugal.,NOVA Medical School, Universidade Nova de Lisboa, Campo dos Mártires da Pátria 130, 1169-056, Lisbon, Portugal
| | - Rossana Cavallo
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Corso Bramante 88/90, 10126, Turin, Italy.,Department of Public Health and Paediatrics, University of Torino, Turin, Italy
| | - Francesco Giuseppe De Rosa
- Department of Medical Sciences, Infectious Diseases, University of Turin, 10126, Turin, Italy.,Unit of Infectious Diseases, Cardinal Massaia, 14100, Asti, Italy
| | - Cristina Costa
- Microbiology and Virology Unit, University Hospital Città della Salute e della Scienza di Torino, Corso Bramante 88/90, 10126, Turin, Italy.,Department of Public Health and Paediatrics, University of Torino, Turin, Italy
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Karampatakis T, Tsergouli K, Lowrie K. Efficacy and safety of ceftazidime-avibactam compared to other antimicrobials for the treatment of infections caused by carbapenem-resistant Klebsiella pneumoniae strains, a systematic review and meta-analysis. Microb Pathog 2023; 179:106090. [PMID: 37004964 DOI: 10.1016/j.micpath.2023.106090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023]
Abstract
INTRODUCTION Carbapenem-resistant Klebsiella pneumoniae (CRKP) infections are a significant public health issue. CRKP infections can increase the mortality of severely ill hospitalised patients and elevate the financial burden of their hospitalisation globally. Colistin and tigecycline are the main antimicrobials which have been widely used for the treatment of CRKP infections. However, novel antimicrobials have been recently launched. Ceftazidime-avibactam (CAZ-AVI) seems one of the most efficient ones. AIM The aim of the current systematic literature review and meta-analysis is to assess the efficacy and safety of CAZ-AVI compared to other antimicrobials in adult patients (aged >18) with CRKP infection. METHODS All data were retrieved using PubMed/Medline, the Web of Science and Cochrane library. The main outcome was the effective treatment of CRKP infection or the microbiological eradication of CRKP in the culture of biological samples. Secondary outcomes included the impact on 28- or 30-day mortality and adverse effects, if available. Pooled analysis was conducted using Review Manager v. 5.4.1 software (RevMan). The level of statistical significance was set at p < 0.05. RESULTS CAZ-AVI was proved more effective than other antimicrobials against CRKP infections and CRKP bloodstream infections (p < 0.00001 and p < 0.0001, respectively). Patients in the CAZ-AVI arm displayed statistically lower 28- and 30-day mortality rates (p = 0.002 and p < 0.00001, respectively). Concerning the microbiological eradication, no meta-analysis was feasible due to high heterogeneity. CONCLUSION The promotion of CAZ-AVI for treating CRKP infections over other antimicrobials seems favourable. However, there is a long way ahead to reveal additional scientific findings to further strengthen this statement.
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Sader HS, Mendes RE, Duncan L, Kimbrough JH, Carvalhaes CG, Castanheira M. Ceftazidime-avibactam, Meropenem-vaborbactam, and Imipenem-relebactam Activities against Multidrug-Resistant Enterobacterales from United States Medical Centers (2018–2022). Diagn Microbiol Infect Dis 2023; 106:115945. [PMID: 37060707 DOI: 10.1016/j.diagmicrobio.2023.115945] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/01/2023] [Accepted: 03/14/2023] [Indexed: 04/07/2023]
Abstract
A total of 35,360 Enterobacterales isolates were consecutively collected from 75 US medical centers in 2018-2022. Among these isolates, 2612 (7.4%) were categorized as multidrug-resistant (MDR). Isolates were susceptibility tested by reference broth microdilution methods. Carbapenem-resistant Enterobacterales (CRE) were screened for carbapenemase (CPE) genes by whole genome sequencing. The highest MDR rates was observed among Klebsiella pneumoniae (12.2%), followed by Raoultella spp. (10.9%) and Providencia stuartii (9.8%). Ceftazidime-avibactam and meropenem-vaborbactam were very active and showed identical susceptibility rates against MDR isolates (97.9%). Imipenem-relebactam (93.5% susceptible [S]) exhibited slightly lower susceptibility rates due to its limited activity against Morganellaceae family. The most active β-lactamase inhibitor combination (BLI) against CRE isolates (n = 310) was ceftazidime-avibactam (84.2%S), followed by meropenem-vaborbactam (81.9%S) and imipenem-relebactam (74.8%S). All 3 BLIs were very active against KPC producers and none were active against MBL producers. Ceftazidime-avibactam exhibited greater activity against OXA-48-type producers than meropenem-vaborbactam and imipenem-vaborbactam.
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Clinical Outcomes and Risk Factors for Death following Carbapenem-Resistant Klebsiella pneumoniae Infection in Solid Organ Transplant Recipients. Microbiol Spectr 2023; 11:e0475522. [PMID: 36515527 PMCID: PMC9927413 DOI: 10.1128/spectrum.04755-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Infections caused by carbapenem-resistant Klebsiella pneumoniae (CRKP) are associated with significant morbidity and mortality. Among solid organ transplant recipients (SOTRs), clinical outcomes and risk factors for death following such infections remain not well documented. A single-center retrospective study was performed. All SOTRs with a CRKP infection at the First Affiliated Hospital of Zhengzhou University between 1 January 2018 and 31 December 2021 were included. Multivariable Cox regression was performed to determine risk factors for death following CRKP infection. We identified 94 SOTRs with CRKP infection, with a median age of 50 years old. CRKP infections resulted in 38.3% of overall 30-day mortality. On multivariable analysis, independent risk factors for death following CRKP infection included older age (hazard ratio [HR], 1.044; 95% confidence interval [CI], 1.007 to 1.083; P = 0.02), allograft failure (HR, 3.962; 95% CI, 1.628 to 9.644; P = 0.002), and septic shock (HR, 8.512; 95% CI, 3.294 to 21.998; P < 0.001). Receiving appropriate targeted therapy was associated with a reduced hazard of death (HR, 0.245; 95% CI, 0.111 to 0.543; P = 0.001). Our study characterized the clinical features and mortality in SOTRs with CRKP infection. The protective effects of appropriate targeted therapy highlight the importance of assessing how antibiotic choices affect the clinical outcomes among SOTRs. IMPORTANCE Carbapenem-resistant Klebsiella pneumoniae (CRKP) infections are increasingly identified in solid organ transplant recipients (SOTRs), but data on the clinical outcomes and risk factors for death following such infections remain limited. Here, we reported CRKP infection was associated with 38.3% of overall 30-day mortality in SOTRs. Independent risk factors for death after CRKP infection included older age, allograft failure, and septic shock. Appropriate targeted therapy was important for alleviating the impact of CRKP infections on these SOTRs.
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Herrera F, Torres D, Laborde A, Berruezo L, Jordán R, Rossi IR, Valledor A, Costantini P, Dictar M, Nenna A, Pereyra ML, Lambert S, Benso J, Poletta F, Gonzalez Ibañez ML, Baldoni N, Eusebio MJ, Lovano F, Barcán L, Luck M, Racioppi A, Tula L, Pasterán F, Corso A, Rapoport M, Nicola F, García Damiano MC, Carbone R, Monge R, Reynaldi M, Greco G, Bronzi M, Valle S, Chaves ML, Vilches V, Blanco M, Carena AÁ. Development of a Clinical Score to Stratify the Risk for Carbapenem-Resistant Enterobacterales Bacteremia in Patients with Cancer and Hematopoietic Stem Cell Transplantation. Antibiotics (Basel) 2023; 12:antibiotics12020226. [PMID: 36830136 PMCID: PMC9952392 DOI: 10.3390/antibiotics12020226] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/06/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
Identifying the risk factors for carbapenem-resistant Enterobacterales (CRE) bacteremia in cancer and hematopoietic stem cell transplantation (HSCT) patients would allow earlier initiation of an appropriate empirical antibiotic treatment. This is a prospective multicenter observational study in patients from 12 centers in Argentina, who presented with cancer or hematopoietic stem-cell transplant and developed Enterobacterales bacteremia. A multiple logistic regression model identified risk factors for CRE bacteremia, and a score was developed according to the regression coefficient. This was validated by the bootstrap resampling technique. Four hundred and forty-three patients with Enterobacterales bacteremia were included: 59 with CRE and 384 with carbapenem-susceptible Enterobacterales (CSE). The risk factors that were identified and the points assigned to each of them were: ≥10 days of hospitalization until bacteremia: OR 4.03, 95% CI 1.88-8.66 (2 points); previous antibiotics > 7 days: OR 4.65, 95% CI 2.29-9.46 (2 points); current colonization with KPC-carbapenemase-producing Enterobacterales: 33.08, 95% CI 11.74-93.25 (5 points). With a cut-off of 7 points, a sensitivity of 35.59%, specificity of 98.43%, PPV of 77.7%, and NPV of 90.9% were obtained. The overall performance of the score was satisfactory (AUROC of 0.85, 95% CI 0.80-0.91). Finally, the post-test probability of CRE occurrence in patients with none of the risk factors was 1.9%, which would virtually rule out the presence of CRE bacteremia.
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Affiliation(s)
- Fabián Herrera
- Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires C1431, Argentina
- Correspondence: ; Tel.: +54-911-58628323
| | - Diego Torres
- Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires C1431, Argentina
| | | | | | - Rosana Jordán
- Hospital Británico de Buenos Aires, Buenos Aires C1280, Argentina
| | | | | | | | - Miguel Dictar
- Instituto Alexander Fleming, Buenos Aires C1426, Argentina
| | - Andrea Nenna
- Hospital Municipal de Oncología Marie Curie, Buenos Aires C1405, Argentina
| | | | | | - José Benso
- Hospital Italiano de San Justo, Buenos Aires C1198, Argentina
| | - Fernando Poletta
- Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires C1431, Argentina
| | | | - Nadia Baldoni
- Hospital HIGA Rodolfo Rossi, La Plata B1902, Argentina
| | | | | | - Laura Barcán
- Hospital Italiano de Buenos Aires, Buenos Aires C1199, Argentina
| | - Martín Luck
- Instituto de Oncología Angel H. Roffo, Buenos Aires C1417, Argentina
| | | | - Lucas Tula
- Hospital El Cruce, Buenos Aires B1888, Argentina
| | - Fernando Pasterán
- Servicio de Antimicrobianos, ANLIS Malbrán, Buenos Aires C1282, Argentina
| | - Alejandra Corso
- Servicio de Antimicrobianos, ANLIS Malbrán, Buenos Aires C1282, Argentina
| | - Melina Rapoport
- Servicio de Antimicrobianos, ANLIS Malbrán, Buenos Aires C1282, Argentina
| | - Federico Nicola
- Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires C1431, Argentina
| | | | - Ruth Carbone
- Hospital HIGA Rodolfo Rossi, La Plata B1902, Argentina
| | - Renata Monge
- Hospital Británico de Buenos Aires, Buenos Aires C1280, Argentina
| | | | - Graciela Greco
- Hospital Italiano de Buenos Aires, Buenos Aires C1199, Argentina
- Hospital Italiano de San Justo, Buenos Aires C1198, Argentina
| | - Marcelo Bronzi
- Instituto de Oncología Angel H. Roffo, Buenos Aires C1417, Argentina
| | - Sandra Valle
- Instituto Alexander Fleming, Buenos Aires C1426, Argentina
| | - María Laura Chaves
- Hospital Municipal de Oncología Marie Curie, Buenos Aires C1405, Argentina
| | - Viviana Vilches
- Hospital Universitario Austral, Buenos Aires B1629, Argentina
| | | | - Alberto Ángel Carena
- Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires C1431, Argentina
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Zhang H, Hu S, Li L, Jin H, Yang J, Shen H, Zhang X. Development and Assessment of a Novel Predictive Nomogram to Predict the Risk of Secondary CR-GNB Bloodstream Infections among CR-GNB Carriers in the Gastroenterology Department: A Retrospective Case-Control Study. J Clin Med 2023; 12:jcm12030804. [PMID: 36769451 PMCID: PMC9918196 DOI: 10.3390/jcm12030804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND With the number of critically ill patients increasing in gastroenterology departments (GEDs), infections associated with Carbapenem-resistant Gram-negative bacteria (CR-GNB) are of great concern in GED. However, no CR-GNB bloodstream infection (BSI) risk prediction model has been established for GED patients. Almost universally, CR-GNB colonization precedes or occurs concurrently with CR-GNB BSI. The objective of this study was to develop a nomogram that could predict the risk of acquiring secondary CR-GNB BSI in GED patients who are carriers of CR-GNB. METHODS We conducted a single-center retrospective case-control study from January 2020 to March 2022. Univariate and multivariable logistic regression analysis was used to identify independent risk factors of secondary CR-GNB bloodstream infections among CR-GNB carriers in the gastroenterology department. A nomogram was constructed according to a multivariable regression model. Various aspects of the established predicting nomogram were evaluated, including discrimination, calibration, and clinical utility. We assessed internal validation using bootstrapping. RESULTS The prediction nomogram includes the following predictors: high ECOG PS, severe acute pancreatitis, diabetes mellitus, neutropenia, a long stay in hospital, and parenteral nutrition. The model demonstrated good discrimination and good calibration. CONCLUSIONS With an estimate of individual risk using the nomogram developed in this study, clinicians and nurses can identify patients with a high risk of secondary CR-GNB BSI early.
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Affiliation(s)
- Hongchen Zhang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
| | - Shanshan Hu
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
| | - Lingyun Li
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
| | - Hangbin Jin
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
| | - Jianfeng Yang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
| | - Hongzhang Shen
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
| | - Xiaofeng Zhang
- The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310003, China
- The Department of Gastroenterology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou 310000, China
- Hangzhou Institute of Digestive Disease, Hangzhou 310000, China
- Correspondence: ; Tel.: +86-135-8829-6257; Fax: +86-571-5600-5600
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Fast Track Diagnostic Tools for Clinical Management of Sepsis: Paradigm Shift from Conventional to Advanced Methods. Diagnostics (Basel) 2023; 13:diagnostics13020277. [PMID: 36673087 PMCID: PMC9857847 DOI: 10.3390/diagnostics13020277] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/24/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Sepsis is one of the deadliest disorders in the new century due to specific limitations in early and differential diagnosis. Moreover, antimicrobial resistance (AMR) is becoming the dominant threat to human health globally. The only way to encounter the spread and emergence of AMR is through the active detection and identification of the pathogen along with the quantification of resistance. For better management of such disease, there is an essential requirement to approach many suitable diagnostic techniques for the proper administration of antibiotics and elimination of these infectious diseases. The current method employed for the diagnosis of sepsis relies on the conventional culture of blood suspected infection. However, this method is more time consuming and generates results that are false negative in the case of antibiotic pretreated samples as well as slow-growing microbes. In comparison to the conventional method, modern methods are capable of analyzing blood samples, obtaining accurate results from the suspicious patient of sepsis, and giving all the necessary information to identify the pathogens as well as AMR in a short period. The present review is intended to highlight the culture shift from conventional to modern and advanced technologies including their limitations for the proper and prompt diagnosing of bloodstream infections and AMR detection.
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Qian C, Wu Q, Ruan Z, Liu F, Li W, Shi W, Ma L, Peng D, Yin H, Yao L, Li Z, Hong M, Xia L. A Visualized Mortality Prediction Score Model in Hematological Malignancies Patients with Carbapenem-Resistant Organisms Bloodstream Infection. Infect Drug Resist 2023; 16:201-215. [PMID: 36644657 PMCID: PMC9833326 DOI: 10.2147/idr.s393932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/30/2022] [Indexed: 01/09/2023] Open
Abstract
Background Bloodstream infection (BSI) due to carbapenem-resistant organisms (CROs) has emerged as a worldwide problem associated with high mortality. This study aimed to evaluate the risk factors associated with mortality in HM patients with CROs BSI and to establish a scoring model for early mortality prediction. Methods We conducted a retrospective cohort study at our hematological department from January 2018 to December 2021, including all HM patients with CROs BSI. The outcome measured was death within 30-day of BSI onset. Survivor and non-survivor subgroups were compared to identify predictors of mortality. Univariate and multivariate Cox regression analyses were used to identify prognostic risk factors and develop a nomogram. Results In total, 150 HM patients were included in the study showing an overall 30-day mortality rate of 56%. Klebsiella pneumonia was the dominant episode. Cox regression analysis showed that pre-infection length of stay was >14 days (score 41), Pitt score >4 (score 100), mucositis (score 41), CAR (The ratio of C-reactive protein to albumin) >8.8 (score 57), early definitive therapy (score 44), and long-duration (score 78) were positive independent risk predictors associated with 30-day mortality, all of which were selected into the nomogram. Furthermore, all patients were divided into the high-risk group (≥160 points) or the low-risk group based on the prediction score model. The mortality of the high-risk group was 8 times more than the low-risk group. Kaplan-Meier analysis showed that empirical polymyxin B therapy was associated with a lower 30-day mortality rate, which was identified as a good prognostic factor in the high-risk group. In comparison, empirical carbapenems and tigecycline were poor prognostic factors in a low-risk group. Conclusion Our score model can accurately predict 30-day mortality in HM patients with CROs BSI. Early administration of CROs-targeted therapy in the high-risk group is strongly recommended to decrease mortality.
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Affiliation(s)
- Chenjing Qian
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Qiuling Wu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Zhixuan Ruan
- Faculty of Natural, Mathematical and Engineering Sciences, King’s College, London, UK
| | - Fang Liu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Weiming Li
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Wei Shi
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Ling Ma
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Danyue Peng
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Hua Yin
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Lan Yao
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Zixuan Li
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
| | - Mei Hong
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, People’s Republic of China,Correspondence: Mei Hong; Linghui Xia, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Road No. 1277, Wuhan, Hubei Province, People’s Republic of China, Tel +8613037137937; +8618627733999, Email ;
| | - Linghui Xia
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic of China
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Russo A, Fusco P, Morrone HL, Trecarichi EM, Torti C. New advances in management and treatment of multidrug-resistant Klebsiella pneumoniae. Expert Rev Anti Infect Ther 2023; 21:41-55. [PMID: 36416713 DOI: 10.1080/14787210.2023.2151435] [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] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The management of multidrug-resistant (MDR) Klebsiella pneumoniae (KP) represents a major challenge in the field of infectious diseases. It is associated with a high rate of nosocomial infections with a mortality rate that reaches approximately 50%, even when using an effective antimicrobial therapy. Therefore, combined actions addressing infection control and antibiotic stewardship are required to delay the emergence of resistance. Since new antimicrobial agents targeting MDR-GNB bacteria have been produced during the last years and are now available for physicians to treat MDR, it is fundamental to choose appropriate antimicrobial therapy for K. pneumoniae infection. AREAS COVERED The PubMed database was searched to review the most significant recent literature on the topic, including data from articles coming from endemic areas and from the current European and American Guidelines. EXPERT OPINION We explore the most effective strategies for prevention of MDR-KP spread and the currently available treatment options, focusing on comparing old strategies and new compounds. We reviewed data concerning newly developed drugs that could play an important role in the future; we also propose a treatment algorithm that could be useful for physicians in daily clinical practice.
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Affiliation(s)
- Alessandro Russo
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
| | - Paolo Fusco
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
| | - Helen Linda Morrone
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
| | - Enrico Maria Trecarichi
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
| | - Carlo Torti
- Infectious and Tropical Disease Unit, Department of Medical and Surgical Sciences, "Magna Graecia" University of Catanzaro, Catanzaro, Italy
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Liu J, Zhang H, Feng D, Wang J, Wang M, Shen B, Cao Y, Zhang X, Lin Q, Zhang F, Zheng Y, Xiao Z, Zhu X, Zhang L, Wang J, Pang A, Han M, Feng S, Jiang E. Development of a Risk Prediction Model of Subsequent Bloodstream Infection After Carbapenem-Resistant Enterobacteriaceae Isolated from Perianal Swabs in Hematological Patients. Infect Drug Resist 2023; 16:1297-1312. [PMID: 36910516 PMCID: PMC9999719 DOI: 10.2147/idr.s400939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/21/2023] [Indexed: 03/08/2023] Open
Abstract
Purpose Patients with hematological diseases are at high risk of carbapenem-resistant Enterobacteriaceae (CRE) infection, and CRE-related bloodstream infection (BSI) is associated with high mortality risk. Therefore, developing a predictive risk model for subsequent BSI in hematological patients with CRE isolated from perianal swabs could be used to guide preventive strategies. Methods This was a single-center retrospective cohort study at a tertiary blood diseases hospital, including all hematological patients hospitalized from 10 October 2017 to 31 July 2021. We developed a predictive model using multivariable logistic regression and internally validated it using enhanced bootstrap resampling. Results Of 421 included patients with CRE isolated from perianal swabs, BSI due to CRE occurred in 59. According to the multivariate logistic analysis, age (OR[odds ratio]=1.04, 95% CI[confidence interval]: 1.01-1.06, P=0.004), both meropenem and imipenem minimal inhibitory concentration (MIC) of the isolate from perianal swabs>8ug/mL (OR=5.34, 95% CI: 2.63-11.5, P<0.001), gastrointestinal symptoms (OR=3.67, 95% CI: 1.82-7.58, P<0.001), valley absolute neutrophil count (109/L)>0.025 (OR=0.07, 95% CI: (0.02-0.19, P<0.001) and shaking chills at peak temperature (OR=6.94, 95% CI: (2.60-19.2, P<0.001) were independently associated with CRE BSI within 30 days and included in the prediction model. At a cut-off of prediction probability ≥ 21.5% the model exhibited a sensitivity, specificity, positive predictive value and negative predictive value of 79.7%, 85.6%, 96.27% and 47.47%. The discrimination and calibration of the prediction model were good on the derivation data (C-statistics=0.8898; Brier score=0.079) and enhanced bootstrapped validation dataset (adjusted C-statistics=0.881; adjusted Brier score=0.083). The risk prediction model is freely available as a mobile application at https://liujia1992.shinyapps.io/dynnomapp/. Conclusion A prediction model based on age, meropenem and imipenem MIC of isolate, gastrointestinal symptoms, valley absolute neutrophil count and shaking chills may be used to better inform interventions in hematological patients with CRE isolated from perianal swabs.
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Affiliation(s)
- Jia Liu
- 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, Tianjin, People's Republic of China
| | - Haixiao Zhang
- 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, Tianjin, People's Republic of China
| | - Dan Feng
- 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, Tianjin, People's Republic of China
| | - Jiali Wang
- 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, Tianjin, People's Republic of China
| | - Mingyang Wang
- 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, Tianjin, People's Republic of China
| | - Biao Shen
- 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, Tianjin, People's Republic of China
| | - Yigeng Cao
- 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, Tianjin, People's Republic of China
| | - Xiaoyu Zhang
- 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, Tianjin, People's Republic of China
| | - Qingsong Lin
- 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, Tianjin, People's Republic of China
| | - Fengkui Zhang
- 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, Tianjin, People's Republic of China
| | - Yizhou Zheng
- 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, Tianjin, People's Republic of China
| | - Zhijian Xiao
- 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, Tianjin, People's Republic of China
| | - Xiaofan Zhu
- 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, Tianjin, People's Republic of China
| | - Lei Zhang
- 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, Tianjin, People's Republic of China
| | - Jianxiang Wang
- 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, Tianjin, People's Republic of China
| | - Aiming Pang
- 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, Tianjin, People's Republic of China
| | - Mingzhe Han
- 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, Tianjin, People's Republic of China
| | - Sizhou Feng
- 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, Tianjin, People's Republic of China
| | - Erlie Jiang
- 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, Tianjin, People's Republic of China
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Li D, Huang X, Rao H, Yu H, Long S, Li Y, Zhang J. Klebsiella pneumoniae bacteremia mortality: a systematic review and meta-analysis. Front Cell Infect Microbiol 2023; 13:1157010. [PMID: 37153146 PMCID: PMC10159367 DOI: 10.3389/fcimb.2023.1157010] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023] Open
Abstract
Objective To analyze the mortality rate of patients with Klebsiella pneumoniae bacteremia (KPB) and the impact of extended spectrum beta-lactamase (ESBL) producing or carbapenem-resistance (CR) KP on the mortality rate among patients with bacteremia. Methods EMbase, Web of Science, PubMed, and The Cochrane Library were searched up to September 18th, 2022. Two reviewers independently extracted data and evaluated risk of bias of included studies by ROBINS-I tool. A meta-regression analysis was conducted using a mixed-effects model to explore possible sources of heterogeneity. A random-effects model was used for pooled analysis in case of significant heterogeneity (I2>50%). Otherwise, the fixed-effects model was performed. Results A total of 157 studies (37,915 enrolled patients) were included in the meta-analysis. The pooled death proportions of KPB were 17% (95% CI=0.14-0.20) at 7-day, 24% (95% CI=0.21-0.28) at 14-day, 29% (95% CI=0.26-0.31) at 30-day, 34% (95% CI=0.26-0.42) at 90-day, and 29% (95% CI=0.26-0.33) in hospital, respectively. Heterogeneity was found from the intensive care unit (ICU), hospital-acquired (HA), CRKP, and ESBL-KP in the meta-regression analysis. More than 50% of ICU, HA, CRKP, and ESBL-KP were associated with a significant higher 30-day mortality rates. The pooled mortality odds ratios (ORs) of CRKP vs. non-CRKP were 3.22 (95% CI 1.18-8.76) at 7-day, 5.66 (95% CI 4.31-7.42) at 14-day, 3.87 (95% CI 3.01-3.49) at 28- or 30-day, and 4.05 (95% CI 3.38-4.85) in hospital, respectively. Conclusions This meta-analysis indicated that patients with KPB in ICU, HA-KPB, CRKP, and ESBL-KP bacteremia were associated with a higher mortality rate. The high mortality rate caused by CRKP bacteremia has increased over time, challenging the public health.
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Affiliation(s)
- Dan Li
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Department of Laboratory Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Department of Laboratory Medicine, Medical Center Hospital of Qionglai City, Chengdu, Sichuan, China
| | - Xiangning Huang
- Department of Laboratory Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Huayun Rao
- Department of Laboratory Medicine, Medical Center Hospital of Qionglai City, Chengdu, Sichuan, China
| | - Hua Yu
- Department of Laboratory Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Shanshan Long
- Department of Laboratory Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yulian Li
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jie Zhang
- Department of Laboratory Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- *Correspondence: Jie Zhang,
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Ten Years of KPC-Kp Bloodstream Infections Experience: Impact of Early Appropriate Empirical Therapy on Mortality. Biomedicines 2022; 10:biomedicines10123268. [PMID: 36552024 PMCID: PMC9776375 DOI: 10.3390/biomedicines10123268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/11/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Background. In K. pneumoniae KPC (KPC-Kp) bloodstream infections (BSI), INCREMENT CPE score >7, Charlson Comorbidity Index (CCI) ≥3 and septic shock are recognized predictors of mortality, with a possible beneficial effect of combination therapy in seriously ill patients. Materials and Methods. We conducted a ten-year retrospective study including all KPC-Kp BSI in patients ≥18 years of age with the aim to evaluate the characteristics and impact of appropriate empirical therapy, either monotherapy or combination therapy, and targeted therapy on mortality. Appropriate therapy was defined as at least one active antimicrobial agent with in vitro activity against KPC-kp demonstrated by susceptibility testing, administered within 48 h from blood culture collection. Results. The median age of the 435 analyzed patients was 66.09 years (IQR 54.87−73.98). The median CCI was 4. KPC-Kp colonization was present in 324 patients (74.48%). The probable origin of the KPC-Kp BSI was not identified in 136 patients (31.26%), whereas in 120 (27.59%) patients, it was CVC-related, and in 118 (27.13%), it was respiratory. Source control was achieved in 87 patients (72.5%) with CVC-related KPC-Kp BSI. The twenty-eight-day survival was 70.45% for empirical monotherapy, 63.88% for empirical combination therapy and 57.05% for targeted therapy (p = 0.0399). A probable source of KPC-Kp BSI other than urinary, CVC or abdominal [aHR 1.64 (IC 1.15−2.34) p = 0.006] and deferred targeted therapy [HR 1.67 (IC 1.12−2.51), p= 0.013] emerged as predictors of mortality, whereas source control [HR 0.62 (IC 0.44−0.86), p = 0.005] and ceftazidime/avibactam administration in empirical therapy [aHR 0.37 (IC 0.20−0.68) p = 0.002] appeared as protective factors. Discussion. These data underline the importance of source control together with timing appropriateness in the early start of empirical therapy over the choice of monotherapy or combination therapy and the use of ceftazidime/avibactam against KPC-Kp BSI.
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Oliva A, Volpicelli L, Di Bari S, Curtolo A, Borrazzo C, Cogliati Dezza F, Cona A, Agrenzano S, Mularoni A, Trancassini M, Mengoni F, Stefani S, Raponi G, Venditti M. Effect of ceftazidime/avibactam plus fosfomycin combination on 30 day mortality in patients with bloodstream infections caused by KPC-producing Klebsiella pneumoniae: results from a multicentre retrospective study. JAC Antimicrob Resist 2022; 4:dlac121. [PMID: 36506890 PMCID: PMC9728520 DOI: 10.1093/jacamr/dlac121] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 11/05/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction The primary outcome of the study was to evaluate the effect on 30 day mortality of the combination ceftazidime/avibactam + fosfomycin in the treatment of bloodstream infections (BSIs) caused by KPC-producing Klebsiella pneumoniae (KPC-Kp). Materials and methods From October 2018 to March 2021, a retrospective, two-centre study was performed on patients with KPC-Kp BSI hospitalized at Sapienza University (Rome) and ISMETT-IRCCS (Palermo) and treated with ceftazidime/avibactam-containing regimens. A matched cohort (1:1) analysis was performed. Cases were patients receiving ceftazidime/avibactam + fosfomycin and controls were patients receiving ceftazidime/avibactam alone or in combination with in vitro non-active drugs different from fosfomycin (ceftazidime/avibactam ± other). Patients were matched for age, Charlson comorbidity index, ward of isolation (ICU or non-ICU), source of infection and severity of BSI, expressed as INCREMENT carbapenemase-producing Enterobacteriaceae (CPE) score. Results Overall, 221 patients were included in the study. Following the 1:1 match, 122 subjects were retrieved: 61 cases (ceftazidime/avibactam + fosfomycin) and 61 controls (ceftazidime/avibactam ± other). No difference in overall mortality emerged between cases and controls, whereas controls had more non-BSI KPC-Kp infections and a higher number of deaths attributable to secondary infections. Almost half of ceftazidime/avibactam + fosfomycin patients were prescribed fosfomycin without MIC fosfomycin availability. No difference in the outcome emerged after stratification for fosfomycin susceptibility availability and dosage. SARS-CoV-2 infection and ICS ≥ 8 independently predicted 30 day mortality, whereas an appropriate definitive therapy was protective. Conclusions Our data show that fosfomycin was used in the treatment of KPC-Kp BSI independently from having its susceptibility testing available. Although no difference was found in 30 day overall mortality, ceftazidime/avibactam + fosfomycin was associated with a lower rate of subsequent KPC-Kp infections and secondary infections than other ceftazidime/avibactam-based regimens.
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Affiliation(s)
- A Oliva
- Corresponding author. E-mail:
| | | | - S Di Bari
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - A Curtolo
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - C Borrazzo
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - F Cogliati Dezza
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - A Cona
- Unit of Infectious Diseases, ISMETT-IRCCS Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, Via E. Tricomi, 5, Palermo 90127, Italy
| | - S Agrenzano
- Unit of Infectious Diseases, ISMETT-IRCCS Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, Via E. Tricomi, 5, Palermo 90127, Italy
| | - A Mularoni
- Unit of Infectious Diseases, ISMETT-IRCCS Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, Via E. Tricomi, 5, Palermo 90127, Italy
| | - M Trancassini
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - F Mengoni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - S Stefani
- Department of Biomedical and Biotechnological Sciences. Policlinico Hospital, University of Catania, Via Androne 81, Catania 95124, Italy
| | - G Raponi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - M Venditti
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
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Cortegiani A, Ingoglia G, Ippolito M, Girardis M, Falcone M, Pea F, Pugliese F, Stefani S, Viale P, Giarratano A. Empiric treatment of patients with sepsis and septic shock and place in therapy of cefiderocol: a systematic review and expert opinion statement. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE 2022. [PMCID: PMC9361889 DOI: 10.1186/s44158-022-00062-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbapenem-resistant Gram-negative bacteria are frequent causes of sepsis and septic shock in intensive care unit (ICU) and thus considered a public health threat. Until now, the best available therapies consist of combinations of preexisting or new antibiotics with β-lactamase inhibitors (either new or preexisting). Several mechanisms of resistance, especially those mediated by metallo-β-lactamases (MBL), are responsible for the inefficacy of these treatments, leaving an unmet medical need. Intravenous cefiderocol has been recently approved by the American Food and Drug Administration (FDA) and European Medicines Agency (EMA) for the treatment of complicated urinary tract infections and nosocomial pneumonia due to Gram-negative, when limited therapeutical options are available. In addition, its ability to hijack bacterial iron uptake mechanisms makes cefiderocol stable against the whole Ambler β-lactamase inhibitors and increases the in vitro efficacy against Gram-negative pathogens (e.g., Enterobacterales spp., Pseudomonas aeruginosa, and Acinetobacter baumannii). Trials have already demonstrated their non-inferiority to comparators. In 2021, ESCMID guidelines released a conditional recommendation supporting the use of cefiderocol against metallo-β-lactamase-producing Enterobacterales and against Acinetobacter baumannii. This review provides the opinion of experts about the general management of empiric treatment of patients with sepsis and septic shock in the intensive care unit and detects the proper place in therapy of cefiderocol considering recent evidence sought through a systematic search.
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Yin Z, Beiwen W, Zhenzhu M, Erzhen C, Qin Z, Yi D. Characteristics of bloodstream infection and initial antibiotic use in critically ill burn patients and their impact on patient prognosis. Sci Rep 2022; 12:20105. [PMID: 36418414 PMCID: PMC9684581 DOI: 10.1038/s41598-022-24492-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 11/16/2022] [Indexed: 11/24/2022] Open
Abstract
To investigate the bacterial epidemiology of blood cultures taken during the treatment of critically ill burn patients, the use of antibiotics at admission and before the observation of positive blood cultures, and their effect on prognosis. A retrospective study method was used. From January 1, 2010, to December 31, 2019, burn patients who met the inclusion criteria and were treated at the Burn Department, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, were enrolled in the study. Data were collected from the patients' electronic medical records. General patient information, including length of hospital stay, length of intensive care unit (ICU) stay, in-hospital mortality, the bacteria epidemiological characteristics of blood cultures, and the use of antibiotics within 24 h after admission and before a positive blood culture was observed, was collected. Independent sample t tests and χ2 tests were used to compare the effects of a positive blood culture and the use of appropriate antibiotics within 24 h after admission and before the observation of a positive blood culture on prognosis. (1) The three most frequently detected bacteria in the blood cultures were Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii, and the amount of K. pneumoniae detected increased gradually. (2) Compared with the group of patients who were negative for bloodstream infection , the positive bloodstream infection group had a larger total body burn surface area (TBSA) (t = - 5.097, P = 0.000) and third-degree burn area (t = - 5.133, P = 0.000), a significantly longer length of hospital stay (t = 3.003, P = 0.003) and the length of ICU stay (t = 4.258, P = 0.000), and a significantly higher rate of in-hospital mortality (χ2 = 8.485, P = 0.004). When K. pneumoniae was detected, the length of hospital stay (t = 2.148, P = 0.035) and the length of ICU stay (t = 2.880, P = 0.005) were significantly prolonged. (3) The two antibiotics that were most frequently used in patients with acute burns within 24 h after admission were lincomycin (90 cases, 29.32%) and carbapenems (79 cases, 25.73%). Comparing the clinical characteristics of the lincomycin group and the carbapenem group, the TBSA (t = - 3.34, P = 0.001) and the third-degree burn area (t = - 6.08, P = 0.000) of the patients in the carbapenem group were larger, and the length of hospital stay (t = - 2.136, P = 0.035) and length of ICU stay (t = - 5.18, P = 0.000) were longer, but the difference in in-hospital mortality was not statistically significant (χ2 = 1.983, P = 0.159). (4) Comparing the group with appropriate initial antibiotic use within 24 h of admission to the inappropriate use group, the TBSA (t = - 0.605, P = 0.547), the third-degree burn area (t = 0.348, P = 0.729), the length of hospital stay (t = - 0.767, P = 0.445), the length of ICU stay (t = - 0.220, P = 0.827) and in-hospital mortality (χ2 = 1.271, P = 0.260) were not significantly different. (5) Comparing the group with appropriate antibiotic use before a positive blood culture was observed to the group with inappropriate antibiotic use, the TBSA (t = - 0.418, P = 0.677), the third-degree burn area (t = 0.266, P = 0.791), the length of hospital stay, the length of ICU stay (t = 0.995, P = 0.322) and in-hospital mortality (χ2 = 1.274, P = 0.259) were not significantly different. We found that patients with a positive blood culture had a larger burn area and a worse prognosis; that the greater the amount of K. pneumoniae in the bloodstream of burn patients was, the longer the hospital and ICU stays were; that whether appropriate antibiotics were administered to acute critical burn patients 24 h after admission had no effect on the prognosis; and that whether appropriate antibiotics were administered before a positive blood culture was observed had no effect on prognosis.
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Affiliation(s)
- Zhang Yin
- grid.16821.3c0000 0004 0368 8293Department of Burn, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 20025 China
| | - Wu Beiwen
- grid.16821.3c0000 0004 0368 8293Department of Nursing, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025 China
| | - Ma Zhenzhu
- grid.16821.3c0000 0004 0368 8293School of Nursing, Shanghai Jiaotong University, Shanghai, 200025 China
| | - Chen Erzhen
- grid.16821.3c0000 0004 0368 8293Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025 China
| | - Zhang Qin
- grid.16821.3c0000 0004 0368 8293Department of Burn, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 20025 China
| | - Dou Yi
- grid.16821.3c0000 0004 0368 8293Department of Burn, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 20025 China
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Ing A, Humphries R. The Genotype—Phenotype Conundrum for Antimicrobial Susceptibility Testing. Clin Chem 2022; 69:316-318. [PMID: 36397186 DOI: 10.1093/clinchem/hvac159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/16/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Austin Ing
- Department of Pharmacy, Vanderbilt University Medical Center , Nashville , USA
| | - Romney Humphries
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center , Nashville , USA
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