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Sangiorgio G, Calvo M, Migliorisi G, Campanile F, Stefani S. The Impact of Enterococcus spp. in the Immunocompromised Host: A Comprehensive Review. Pathogens 2024; 13:409. [PMID: 38787261 PMCID: PMC11124283 DOI: 10.3390/pathogens13050409] [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: 04/20/2024] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
The immunocompromised host is usually vulnerable to infectious diseases due to broad-spectrum treatments and immunological dysregulation. The Enterococcus genus consists of normal gut commensals, which acquire a leading role in infective processes among individuals with compromised immune systems. These microorganisms may express a potential virulence and resistance spectrum, enabling their function as severe pathogens. The Enterococcus spp. infections in immunocompromised hosts appear to be difficult to resolve due to the immunological response impairment and the possibility of facing antimicrobial-resistant strains. As regards the related risk factors, several data demonstrated that prior antibiotic exposure, medical device insertion, prolonged hospitalization and surgical interventions may lead to Enterococcus overgrowth, antibiotic resistance and spread among critical healthcare settings. Herein, we present a comprehensive review of Enterococcus spp. in the immunocompromised host, summarizing the available knowledge about virulence factors, antimicrobial-resistance mechanisms and host-pathogen interaction. The review ultimately yearns for more substantial support to further investigations about enterococcal infections and immunocompromised host response.
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Affiliation(s)
- Giuseppe Sangiorgio
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (F.C.); (S.S.)
| | - Maddalena Calvo
- U.O.C. Laboratory Analysis Unit, University Hospital Policlinico-San Marco, Via Santa Sofia 78, 95123 Catania, Italy; (M.C.); (G.M.)
| | - Giuseppe Migliorisi
- U.O.C. Laboratory Analysis Unit, University Hospital Policlinico-San Marco, Via Santa Sofia 78, 95123 Catania, Italy; (M.C.); (G.M.)
| | - Floriana Campanile
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (F.C.); (S.S.)
| | - Stefania Stefani
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 97, 95123 Catania, Italy; (F.C.); (S.S.)
- U.O.C. Laboratory Analysis Unit, University Hospital Policlinico-San Marco, Via Santa Sofia 78, 95123 Catania, Italy; (M.C.); (G.M.)
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Oliva A, Cogliati Dezza F, Cancelli F, Curtolo A, Falletta A, Volpicelli L, Venditti M. New Antimicrobials and New Therapy Strategies for Endocarditis: Weapons That Should Be Defended. J Clin Med 2023; 12:7693. [PMID: 38137762 PMCID: PMC10743892 DOI: 10.3390/jcm12247693] [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: 10/05/2023] [Revised: 11/22/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
The overall low-quality evidence concerning the clinical benefits of different antibiotic regimens for the treatment of infective endocarditis (IE), which has made it difficult to strongly support or reject any regimen of antibiotic therapy, has led to a discrepancy between the available guidelines and clinical practice. In this complex scenario, very recently published guidelines have attempted to fill this gap. Indeed, in recent years several antimicrobials have entered the market, including ceftobiprole, ceftaroline, and the long-acting lipoglycopeptides dalbavancin and oritavancin. Despite being approved for different indications, real-world data on their use for the treatment of IE, alone or in combination, has accumulated over time. Furthermore, an old antibiotic, fosfomycin, has gained renewed interest for the treatment of complicated infections such as IE. In this narrative review, we focused on new antimicrobials and therapeutic strategies that we believe may provide important contributions to the advancement of Gram-positive IE treatment, providing a summary of the current in vitro, in vivo, and clinical evidence supporting their use in clinical practice.
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Affiliation(s)
- Alessandra Oliva
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy; (F.C.D.); (F.C.); (A.C.); (A.F.); (L.V.); (M.V.)
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3
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Guedes GMDM, Melgarejo CMA, Freitas AS, Amando BR, Costa CL, Ocadaque CJ, Gomes FIF, Bandeira SP, de Aguiar Cordeiro R, Gadelha Rocha MF, Sidrim JJC, Castelo-Branco DDSCM. Effect of promethazine on biofilms of gram-positive cocci associated with infectious endocarditis. BIOFOULING 2023; 39:189-203. [PMID: 37144566 DOI: 10.1080/08927014.2023.2202313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
This study evaluated the antimicrobial activity of promethazine against Staphylococcus aureus, Staphylococcus epidermidis and Streptococcus mutans and its effect on the antimicrobial susceptibility of biofilms grown in vitro and ex vivo on porcine heart valves. Promethazine was evaluated alone and in combination with vancomycin and oxacillin against Staphylococcus spp. and vancomycin and ceftriaxone against S. mutans in planktonic form and biofilms grown in vitro and ex vivo. Promethazine minimum inhibitory concentration range was 24.4-95.31 μg/mL and minimum biofilm eradication concentration range was 781.25-3.125 μg/mL. Promethazine interacted synergistically with vancomycin, oxacillin and ceftriaxone against biofilms in vitro. Promethazine alone reduced (p < 0.05) the CFU-counts of biofilms grown on heart valves for Staphylococcus spp., but not for S. mutans, and increased (p < 0.05) the activity of vancomycin, oxacillin and ceftriaxone against biofilms of Gram-positive cocci grown ex vivo. These findings bring perspectives for repurposing promethazine as adjuvant in the treatment of infective endocarditis.
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Affiliation(s)
- Gláucia Morgana de Melo Guedes
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Carliane Melo Alves Melgarejo
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Alyne Soares Freitas
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Bruno Rocha Amando
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Cecília Leite Costa
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Crister José Ocadaque
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Francisco Ivanilsom Firmiano Gomes
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Silviane Praciano Bandeira
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Laboratory of Emerging and Reemerging Pathogens, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Rossana de Aguiar Cordeiro
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Laboratory of Emerging and Reemerging Pathogens, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marcos Fábio Gadelha Rocha
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Laboratory of Emerging and Reemerging Pathogens, Federal University of Ceará, Fortaleza, Ceará, Brazil
- School of Veterinary Medicine, Postgraduate Program in Veterinary Sciences, State University of Ceará, Fortaleza, Ceará, Brazil
| | - José Júlio Costa Sidrim
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Laboratory of Emerging and Reemerging Pathogens, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Débora de Souza Collares Maia Castelo-Branco
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Group of Applied Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Pathology and Legal Medicine, Postgraduate Program in Medical Microbiology, Laboratory of Emerging and Reemerging Pathogens, Federal University of Ceará, Fortaleza, Ceará, Brazil
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4
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Lakbar I, Delamarre L, Einav S, Leone M. Endocarditis in the intensive care unit: an update. Curr Opin Crit Care 2022; 28:503-512. [PMID: 35942691 DOI: 10.1097/mcc.0000000000000973] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The incidence of infective endocarditis (IE) is increasing worldwide, resulting in a higher number of patients with IE being admitted to intensive care units (ICU). Nearly half of patients with IE develop a complication during their clinical course. However, few well conducted studies or reviews are devoted to critically ill IE patients. This review discusses the contemporary perioperative and intensive care literature. RECENT FINDINGS IE epidemiology is changing towards elderly and frail patients. ICU patients are at risk of risk of developing IE because they are often in a pro-inflammatory state and many also have several indwelling catheters, which favors infection. Increased performance and recent advances in cardiac imaging allow for easier diagnosis of EI, but the applicability of these techniques to ICU patients is still relatively limited. New developments in antibiotic treatment and adjunctive therapies are explored further in this review. SUMMARY The lack of evidence on ICU patients with IE highlights the critical importance of multidisciplinary decision-making and the need for further research.
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Affiliation(s)
- Ines Lakbar
- Department of Anesthesiology and Intensive Care Unit, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Nord Hospital, Marseille, France
| | - Louis Delamarre
- Department of Anesthesiology and Intensive Care Unit, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Nord Hospital, Marseille, France
| | - Sharon Einav
- General Intensive Care Unit of the Shaare Zedek Medical Centre and the Hebrew University Faculty of Medicine, Jerusalem, Israel
| | - Marc Leone
- Department of Anesthesiology and Intensive Care Unit, Aix Marseille University, Assistance Publique Hôpitaux Universitaires de Marseille, Nord Hospital, Marseille, France
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Tongwanichniyom S, Kitjaruwankul S, Phornphisutthimas S. Production of biomaterials from seafood waste for application as vegetable wash disinfectant. Heliyon 2022; 8:e09357. [PMID: 35574197 PMCID: PMC9095745 DOI: 10.1016/j.heliyon.2022.e09357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/26/2022] [Accepted: 04/27/2022] [Indexed: 11/18/2022] Open
Affiliation(s)
| | - Sunan Kitjaruwankul
- Faculty of Science at Sriracha, Kasetsart University, Chonburi, 20230, Thailand
| | - Somkiat Phornphisutthimas
- Department of Biology, and Research Unit on Science, Technology and Environment for Learning, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
- Corresponding author.
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6
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Brandariz-Núñez D, Suanzes J, Gutiérrez-Urbón JM, Fernández-Oliveira C, Margusino L, Martín-Herranz I. Incidence and risk factors for mortality in patients treated with combined ceftaroline for Gram-positive infective endocarditis. Eur J Clin Microbiol Infect Dis 2022; 41:827-834. [PMID: 35435629 DOI: 10.1007/s10096-022-04443-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/14/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Ceftaroline is a fifth-generation cephalosporin and represents an alternative in the treatment of infective endocarditis (IE). The main objective of this study was to describe the incidence of in-hospital and 42-day mortality in patients with IE treated with ceftaroline. METHODS An observational retrospective study included adult patients with IE admitted during a 3.5-year period (January 2018-June 2021) and treated with ceftaroline in a single center. All cases were definite or possible IE according to the modified Duke criteria. RESULTS Seventy cases were analyzed. The mean age was 67.35 ± 16.62 (16-89) and 39 (55.7%) were males. The mean number of days of treatment with ceftaroline was 21.26 ± 16.17 (1-75). Overall mortality at 42 days was 30%, 20.7% in the first line, and 36.6% in rescue therapy. Predictors of 42 days-mortality were increased Charlson comorbidity index (CCI) (OR of 1.7 per 1 point increment, 95% CI 1.2-2.4, P 0.001), presence of methicillin-resistance (OR 6.8, 95% CI 1.3-36.8, P 0.026) and evidence of septic shock (OR 8.6 95% CI 1.7-44.2, P 0.01). Predictors of 42 days of therapeutic failure were the increase in the CCI (OR of 1.6 per 1 point increment, 95% CI 1.3-2.1, P 0.000) and septic shock (OR 4.5 95% CI 1.1-18 P 0.036). Adverse effects were described in 6/70 (8.6%) of the patients, precipitating in 4/70 (5.7%) the definitive withdrawal of the antibiotic. CONCLUSIONS The incidence of in-hospital and 42 day-mortality of IE patients treated with ceftaroline remains similar to literature data. Increased CCI, septic shock, and methicillin resistance are associated with poor prognosis.
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Affiliation(s)
- D Brandariz-Núñez
- Pharmacy Deparment, Universitary Complex Hospital A Coruña (CHUAC), A Coruña, Spain.
| | - J Suanzes
- Research Support Unit, Universitary Complex Hospital A Coruña (CHUAC), A Coruña, Spain
- Institute of Biomedical Research (INIBIC), A Coruña, Spain
| | - J M Gutiérrez-Urbón
- Pharmacy Deparment, Universitary Complex Hospital A Coruña (CHUAC), A Coruña, Spain
| | - C Fernández-Oliveira
- Pharmacy Deparment, Universitary Complex Hospital A Coruña (CHUAC), A Coruña, Spain
| | - L Margusino
- Pharmacy Deparment, Universitary Complex Hospital A Coruña (CHUAC), A Coruña, Spain
| | - I Martín-Herranz
- Pharmacy Deparment, Universitary Complex Hospital A Coruña (CHUAC), A Coruña, Spain
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Cuervo G, Hernández-Meneses M, Falces C, Quintana E, Vidal B, Marco F, Perissinotti A, Carratalà J, Miro JM. Infective Endocarditis: New Challenges in a Classic Disease. Semin Respir Crit Care Med 2022; 43:150-172. [PMID: 35172365 DOI: 10.1055/s-0042-1742482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Infective endocarditis is a relatively rare, but deadly infection, with an overall mortality of around 20% in most series. Clinical manifestations have evolved in response to significant epidemiological shifts in industrialized nations, with a move toward a nosocomial or health-care-related pattern, in older patients, with more episodes associated with prostheses and/or intravascular electronic devices and a predominance of staphylococcal and enterococcal etiology.Diagnosis is often challenging and is based on the conjunction of clinical, microbiological, and imaging information, with notable progress in recent years in the accuracy of echocardiographic data, coupled with the recent emergence of other useful imaging techniques such as cardiac computed tomography (CT) and nuclear medicine tools, particularly 18F-fluorodeoxyglucose positron emission/CT.The choice of an appropriate treatment for each specific case is complex, both in terms of the selection of the appropriate agent and doses and durations of therapy as well as the possibility of using combined bactericidal antibiotic regimens in the initial phase and finalizing treatment at home in patients with good evolution with outpatient oral or parenteral antimicrobial therapies programs. A relevant proportion of patients will also require valve surgery during the active phase of treatment, the timing of which is extremely difficult to define. For all the above, the management of infective endocarditis requires a close collaboration of multidisciplinary endocarditis teams.
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Affiliation(s)
- Guillermo Cuervo
- Infectious Diseases Service, Hospital Bellvitge - IDIBELL, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Hernández-Meneses
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.,Infectious Diseases Service, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Carles Falces
- Cardiology Service, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Eduard Quintana
- Cardiovascular Surgery Service, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Bárbara Vidal
- Cardiology Service, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Francesc Marco
- Microbiology Service, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Andrés Perissinotti
- Department of Nuclear Medicine, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain.,Biomedical Research Networking Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Jordi Carratalà
- Infectious Diseases Service, Hospital Bellvitge - IDIBELL, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Jose M Miro
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.,Infectious Diseases Service, Hospital Clinic - IDIBAPS, University of Barcelona, Barcelona, Spain
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8
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Cuervo G, Escrihuela-Vidal F, Gudiol C, Carratalà J. Current Challenges in the Management of Infective Endocarditis. Front Med (Lausanne) 2021; 8:641243. [PMID: 33693021 PMCID: PMC7937698 DOI: 10.3389/fmed.2021.641243] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 02/01/2021] [Indexed: 12/17/2022] Open
Abstract
Infective endocarditis is a relatively rare, but deadly cause of sepsis, with an overall mortality ranging from 20 to 25% in most series. Although the classic clinical classification into syndromes of acute or subacute endocarditis have not completely lost their usefulness, current clinical forms have changed according to the profound epidemiological changes observed in developed countries. In this review, we aim to address the changing epidemiology of endocarditis, several recent advances in the understanding of the pathophysiology of endocarditis and endocarditis-triggered sepsis, new useful diagnostic tools as well as current concepts in the medical and surgical management of this disease. Given its complexity, the management of infective endocarditis requires the close collaboration of multidisciplinary endocarditis teams that must decide on the diagnostic approach; the appropriate initial treatment in the critical phase; the detection of patients needing surgery and the timing of this intervention; and finally the accurate selection of patients for out-of-hospital treatment, either at home hospitalization or with oral antibiotic treatment.
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Affiliation(s)
- Guillermo Cuervo
- Infectious Diseases Department, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Bellvitge University Hospital, University of Barcelona, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI), Instituto de Salud Carlos III, Madrid, Spain
| | - Francesc Escrihuela-Vidal
- Infectious Diseases Department, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Bellvitge University Hospital, University of Barcelona, Barcelona, Spain
| | - Carlota Gudiol
- Infectious Diseases Department, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Bellvitge University Hospital, University of Barcelona, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI), Instituto de Salud Carlos III, Madrid, Spain.,Insitut Català d'Oncologia, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Hospital Duran i Reynals, Barcelona, Spain
| | - Jordi Carratalà
- Infectious Diseases Department, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Bellvitge University Hospital, University of Barcelona, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI), Instituto de Salud Carlos III, Madrid, Spain
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Lupia T, Pallotto C, Corcione S, Boglione L, De Rosa FG. Ceftobiprole Perspective: Current and Potential Future Indications. Antibiotics (Basel) 2021; 10:170. [PMID: 33567771 PMCID: PMC7915564 DOI: 10.3390/antibiotics10020170] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/19/2021] [Accepted: 01/29/2021] [Indexed: 02/07/2023] Open
Abstract
Ceftobiprole combines an excellent spectrum for community-acquired pneumonia (CAP) and hospital-acquired pneumonia (HAP) pathogens, with a low/medium MDR risk, and the β-lactams' safety in frail patients admitted to the hospital in internal medicine wards which may be at high risk of adverse events by anti-MRSA coverage as oxazolidinones or glycopeptides. We aimed to report the available evidence regarding ceftobiprole use in pneumonia and invasive bacterial infections, shedding light on ceftobiprole stewardship. The clinical application and real-life experiences of using ceftobiprole for bloodstream infections, including infective endocarditis, are limited but nevertheless promising. In addition, extended-spectrum ceftobiprole activity, including Enterococcus faecalis, Enterobacteriaceae, and Pseudomonas aeruginosa, has theoretical advantages for use as empirical therapy in bacteremia potentially caused by a broad spectrum of microorganisms, such as catheter-related bacteremia. In the future, the desirable approach to sepsis and severe infections will be administered to patients according to their clinical situation, the intrinsic host characteristics, the susceptibility profile, and local epidemiology, while the "universal antibiotic strategy" will no longer be adequate.
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Affiliation(s)
- Tommaso Lupia
- Infectious Diseases Unit, Cardinal Massaia Hospital, 14100 Asti, Italy;
| | - Carlo Pallotto
- Infectious Diseases Unit 1, Santa Maria Annunziata Hospital, Central District, Tuscany Health Care, Bagno a Ripoli, 500012 Florence, Italy;
| | - Silvia Corcione
- Department of Medical Sciences, Infectious Diseases, University of Turin, 10124 Turin, Italy;
- Infectious Diseases, Tufts University School of Medicine, Boston, MA 02109, USA
| | - Lucio Boglione
- Department of Translational Medicine, University of Eastern Piedmont, 28100 Novara, Italy;
| | - Francesco Giuseppe De Rosa
- Infectious Diseases Unit, Cardinal Massaia Hospital, 14100 Asti, Italy;
- Department of Medical Sciences, Infectious Diseases, University of Turin, 10124 Turin, Italy;
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