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Alsaeed A, Alhaddad MJ, AlKhalaf AA, Alkhudair A, Alqannas N. Successful Treatment of Infective Endocarditis With Oral Antibiotics: A Case Report. Cureus 2023; 15:e43514. [PMID: 37719561 PMCID: PMC10500962 DOI: 10.7759/cureus.43514] [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] [Accepted: 08/14/2023] [Indexed: 09/19/2023] Open
Abstract
Infective endocarditis (IE) is a serious and potentially life-threatening infection of the heart valves. It is commonly treated with prolonged courses of intravenous antibiotics, and in some cases, surgical intervention may also be necessary. While the use of oral antibiotics in the treatment of IE is generally limited, there are select cases where they may be considered as an alternative treatment option. Here, we report a case of staphylococcal right-sided IE successfully treated with oral antibiotics (linezolid and rifampicin). Our case highlights the potential for oral antibiotics to be used as step-down therapy for select patients with IE.
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Affiliation(s)
- Ali Alsaeed
- Infectious Disease, Dammam Medical Complex, Dammam, SAU
| | | | | | - Ashraf Alkhudair
- Saud Albabtain Cardiac Center, Dammam Medical Complex, Dammam, SAU
| | - Naif Alqannas
- Saud Albabtain Cardiac Center, Dammam Medical Complex, Dammam, SAU
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2
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Muñoz P, De la Villa S, Martínez-Sellés M, Goenaga MA, Reviejo-Jaka K, Revillas FADL, García-Cuello L, Hidalgo-Tenorio C, Rodríguez-Esteban MA, Antorrena I, Castelo-Corral L, García-Vázquez E, De la Torre J, Bouza E. Linezolid for infective endocarditis: A structured approach based on a national database experience. Medicine (Baltimore) 2021; 100:e27597. [PMID: 34941026 PMCID: PMC8701757 DOI: 10.1097/md.0000000000027597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 10/06/2021] [Indexed: 01/05/2023] Open
Abstract
Current data on the frequency and efficacy of linezolid (LNZ) in infective endocarditis (IE) are based on small retrospective series. We used a national database to evaluate the effectiveness of LNZ in IE.This is a retrospective study of IE patients in the Spanish GAMES database who received LNZ. We defined 3 levels of therapeutic impact: LNZ < 7 days, LNZ high-impact (≥ 7 days, > 50% of the total treatment, and > 50% of the LNZ doses prescribed in the first weeks of treatment), and LNZ ≥ 7 days not fulfilling the high-impact criteria (LNZ-NHI). Effectiveness of LNZ was assessed using propensity score matching and multivariate analysis of high-impact cases in comparison to patients not treated with LNZ from the GAMES database matched for age-adjusted comorbidity Charlson index, heart failure, renal failure, prosthetic and intracardiac IE device, left-sided IE, and Staphylococcus aureus. Primary outcomes were in-hospital mortality and one-year mortality. Secondary outcomes included IE complications and relapses.From 3467 patients included in the GAMES database, 295 (8.5%) received LNZ. After excluding 3 patients, 292 were grouped as follows for the analyses: 99 (33.9%) patients in LNZ < 7 days, 11 (3.7%) in LNZ high-impact, and 178 (61%) in LNZ-NHI. In-hospital mortality was 51.5%, 54.4%, and 19.1% respectively. In the propensity analysis, LNZ high-impact group presented with respect to matched controls not treated with LNZ higher in-hospital mortality (54.5% vs 18.2%, P = .04). The multivariate analysis showed an independent relationship of LNZ use with in-hospital mortality (odds ratio 9.06, 95% confidence interval 1.15--71.08, P = .03).Treatment with LNZ is relatively frequent, but most cases do not fulfill our high-impact criteria. Our data suggest that the use of LNZ as definitive treatment in IE may be associated with higher in-hospital mortality.
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Affiliation(s)
- P Muñoz
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, CIBER Enfermedades Respiratorias-CIBERES (CB06/06/0058), Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - S De la Villa
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - M Martínez-Sellés
- Servicio de Cardiología, Hospital General Universitario Gregorio Marañón, CIBERCV, Universidad Complutense, Universidad Europea, Madrid, Spain
| | - M A Goenaga
- Servicio de Enfermedades Infecciosas. Hospital Universitario Donosti, San Sebastián
| | - K Reviejo-Jaka
- Servicio de Medicina Intensiva. Policlínica-Grupo Quirón Gipuzkoa, San Sebastián, Spain
| | - F Arnáiz de Las Revillas
- Servicio de Enfermedades Infecciosas. Hospital Universitario Marqués de Valdecilla. Universidad de Cantabria, Santander, Spain
| | - L García-Cuello
- Servicio de Enfermedades Infecciosas. Hospital Universitario Marqués de Valdecilla. Universidad de Cantabria, Santander, Spain
| | - C Hidalgo-Tenorio
- Unidad de Gestión Clínica de Enfermedades Infecciosas. Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - M A Rodríguez-Esteban
- Unidad de Cuidados Intensivos Cardiológicos. Hospital Universitario Central de Asturias, Oviedo, Spain
| | - I Antorrena
- Servicio de Cardiología. Hospital Universitario La Paz, Madrid, Spain
| | - L Castelo-Corral
- Servicio de Enfermedades Infecciosas, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain
| | - E García-Vázquez
- Servicio de Medicina Interna-Infecciosas. IMIB. Hospital Clínico Universitario Virgen de la Arrixaca. Facultad de Medicina, Universidad de Murcia, Murcia, Spain
| | - J De la Torre
- Grupo de Enfermedades Infecciosas de la Unidad de Medicina Interna. Hospital Costa del Sol, Málaga, Spain
| | - E Bouza
- Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, CIBER Enfermedades Respiratorias-CIBERES (CB06/06/0058), Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
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3
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Pericás JM, Zboromyrska Y, Cervera C, Castañeda X, Almela M, Garcia-de-la-Maria C, Mestres C, Falces C, Quintana E, Ninot S, Llopis J, Marco F, Moreno A, Miró JM. Enterococcal endocarditis revisited. Future Microbiol 2015; 10:1215-40. [PMID: 26118390 DOI: 10.2217/fmb.15.46] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The Enterococcus species is the third main cause of infective endocarditis (IE) worldwide, and it is gaining relevance, especially among healthcare-associated cases. Patients with enterococcal IE are older and have more comorbidities than other types of IE. Classical treatment options are limited due to the emergence of high-level aminoglycosides resistance (HLAR), vancomycin resistance and multidrug resistance in some cases. Besides, few new antimicrobial alternatives have shown real efficacy, despite some of them being recommended by major guidelines (including linezolid and daptomycin). Ampicillin plus ceftriaxone 2 g iv./12 h is a good option for Enterococcus faecalis IE caused by HLAR strains, but randomized clinical trials are essential to demonstrate its efficacy for non-HLAR EFIE and to compare it with ampicillin plus short-course gentamicin. The main mechanisms of resistance and treatment options are also reviewed for other enterococcal species.
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Affiliation(s)
- J M Pericás
- Infectious Diseases Service, Hospital Clínic-IDIBAPS (Institut d'Investigacions Biomèdiques Pi i Sunyer), University of Barcelona, Barcelona, Spain
| | - Y Zboromyrska
- Clinical Microbiology Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - C Cervera
- Infectious Diseases Service, Hospital Clínic-IDIBAPS (Institut d'Investigacions Biomèdiques Pi i Sunyer), University of Barcelona, Barcelona, Spain
| | - X Castañeda
- Infectious Diseases Service, Hospital Clínic-IDIBAPS (Institut d'Investigacions Biomèdiques Pi i Sunyer), University of Barcelona, Barcelona, Spain
| | - M Almela
- Clinical Microbiology Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - C Garcia-de-la-Maria
- Infectious Diseases Service, Hospital Clínic-IDIBAPS (Institut d'Investigacions Biomèdiques Pi i Sunyer), University of Barcelona, Barcelona, Spain
| | - C Mestres
- Cardiovascular Surgery Service, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - C Falces
- Cardiology Service, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - E Quintana
- Cardiovascular Surgery Service, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - S Ninot
- Cardiovascular Surgery Service, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - J Llopis
- Department of Statistics, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - F Marco
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Microbiology Service, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - A Moreno
- Infectious Diseases Service, Hospital Clínic-IDIBAPS (Institut d'Investigacions Biomèdiques Pi i Sunyer), University of Barcelona, Barcelona, Spain
| | - J M Miró
- Infectious Diseases Service, Hospital Clínic-IDIBAPS (Institut d'Investigacions Biomèdiques Pi i Sunyer), University of Barcelona, Barcelona, Spain
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Ager S, Gould K. Clinical update on linezolid in the treatment of Gram-positive bacterial infections. Infect Drug Resist 2012; 5:87-102. [PMID: 22787406 PMCID: PMC3392139 DOI: 10.2147/idr.s25890] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Gram-positive pathogens are a significant cause of morbidity and mortality in both community and health care settings. Glycopeptides have traditionally been the antibiotics of choice for multiresistant Gram-positive pathogens but there are problems with their use, including the emergence of glycopeptide-resistant strains, tissue penetration, and achieving and monitoring adequate serum levels. Newer antibiotics such as linezolid, a synthetic oxazolidinone, are available for the treatment of resistant Gram-positive bacteria. Linezolid is active against a wide range of Gram-positive bacteria and has been generally available for the treatment of Gram-positive infections since 2000. There are potential problems with linezolid use, including its bacteriostatic action and the relatively high incidence of reported adverse effects, particularly with long-term use. Long-term use may also be complicated by the development of resistance. However, linezolid has been shown to be clinically useful in the treatment of several serious infections where traditionally bacteriocidal agents have been required and many of its adverse effects are reversible on cessation. It has also been shown to be a cost-effective treatment option in several studies, with its high oral bioavailability allowing an early change from intravenous to oral formulations with consequent earlier patient discharge and lower inpatient costs.
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Affiliation(s)
- Sally Ager
- Department of Microbiology, Newcastle upon Tyne Hospitals Trust, Freeman Hospital, High Heaton, Newcastle upon Tyne, UK
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5
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Linezolid as rescue treatment for left-sided infective endocarditis: an observational, retrospective, multicenter study. Eur J Clin Microbiol Infect Dis 2012; 31:2567-74. [DOI: 10.1007/s10096-012-1597-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 02/29/2012] [Indexed: 11/25/2022]
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Gould FK, Denning DW, Elliott TSJ, Foweraker J, Perry JD, Prendergast BD, Sandoe JAT, Spry MJ, Watkin RW, Working Party of the British Society for Antimicrobial Chemotherapy. Guidelines for the diagnosis and antibiotic treatment of endocarditis in adults: a report of the Working Party of the British Society for Antimicrobial Chemotherapy. J Antimicrob Chemother 2011; 67:269-89. [PMID: 22086858 DOI: 10.1093/jac/dkr450] [Citation(s) in RCA: 299] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The BSAC guidelines on treatment of infectious endocarditis (IE) were last published in 2004. The guidelines presented here have been updated and extended to reflect developments in diagnostics, new trial data and the availability of new antibiotics. The aim of these guidelines, which cover both native valve and prosthetic valve endocarditis, is to standardize the initial investigation and treatment of IE. An extensive review of the literature using a number of different search criteria has been carried out and cited publications used to support any changes we have made to the existing guidelines. Publications referring to in vitro or animal models have only been cited if appropriate clinical data are not available. Randomized, controlled trials suitable for the development of evidenced-based guidelines in this area are still lacking and therefore a consensus approach has again been adopted for most recommendations; however, we have attempted to grade the evidence, where possible. The guidelines have also been extended by the inclusion of sections on clinical diagnosis, echocardiography and surgery.
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Affiliation(s)
- F Kate Gould
- Department of Microbiology, Freeman Hospital, Newcastle upon Tyne, UK.
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7
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Abrutyn E, Cabell CH, Fowler VG, Hoen B, Miro JM, Mestres CA, Sexton DJ, Corey GR. Medical treatment of endocarditis. Curr Infect Dis Rep 2010; 9:271-82. [PMID: 17618546 DOI: 10.1007/s11908-007-0043-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Infective endocarditis (IE) remains a serious and deadly disease. The incidence, which varies by gender and on the presence of predisposing factors, has not decreased, due in part to the aging population with more healthcare exposures and predisposing risk factors such as prosthetic heart valves and intracardiac devices. The most important aspects of treatment in IE hinge upon early diagnosis, microorganism identification with susceptibility testing, and early initiation of appropriate antibiotic therapy. In addition, echocardiographic imaging is critical for both diagnostic and prognostic purposes. Early evaluation for surgery should be considered. Once a therapeutic strategy is begun, careful attention to the clinical course is necessary to ensure appropriate response to therapy and to identify complications early.
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Affiliation(s)
- Elias Abrutyn
- Duke Clinical Research Institute, DUMC Box 2705, Durham, NC 27710, USA
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8
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Oxazolidinones. Infect Dis (Lond) 2010. [DOI: 10.1016/b978-0-323-04579-7.00136-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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9
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Berdal JE, Eskesen A. Short-term success, but long-term treatment failure with linezolid for enterococcal endocarditis. ACTA ACUST UNITED AC 2009; 40:765-6. [DOI: 10.1080/00365540802087209] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Olaechea Astigarraga PM, Garnacho Montero J, Grau Cerrato S, Rodríguez Colomo O, Palomar Martínez M, Zaragoza Crespo R, Muñoz García-Paredes P, Cerdá Cerdá E, Alvarez Lerma F. [Summary of the GEIPC-SEIMC and GTEI-SEMICYUC recommendations for the treatment of infections caused by gram positive cocci in critical patients]. FARMACIA HOSPITALARIA 2008; 31:353-69. [PMID: 18348666 DOI: 10.1016/s1130-6343(07)75407-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE In recent years there has been an increase in infections caused by gram-positive cocci in critical patients, together with a rapid development of resistance to the antibiotics which are normally used to treat them. The objective is to prepare an antibiotic treatment guide for the most common infections caused by gram positive cocci in critical patients. This guide will help in the decision-making process regarding the care of such patients. METHOD Experts from two scientific societies worked together to prepare a consensus document. They were members of the Study Group on Infections in Critical Patients (GEIPC), which is part of the Spanish Society of Infectious Diseases and Clinical Microbiology (SEIMC), and the Infectious Diseases Working Group (GTEI), belonging to the Spanish Society of Intensive Care Medicine and Coronary Units (SEMICYUC). There was a systematic review of the literature published up to September 2006 regarding this type of infections and the antibiotic treatments marketed to that date. An evidence grading system was applied according to the strength of the recommendation (categories A, B or C) and the level of evidence (categories I, II or III). Recommendations were given if there was consensus among the experts from both societies. RESULTS The antibiotic regimens recommended for treating infections caused by gram-positive cocci were presented in the form of tables, showing the recommendation grade. Alternatives were given for allergic patients. The scientific basis supporting the aforementioned recommendations is explained within the text and the references upon which they are based are cited. CONCLUSIONS A summary of an evidence-based practical guide for the treatment of infections caused by gram-positive cocci in critical patients is presented.
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Affiliation(s)
- Jay A Fishman
- Transplant Infectious Disease and Compromised Host Program, Massachusetts General Hospital, and Harvard Medical School, Boston, MA 02114, USA.
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Astigarraga PMO, Montero JG, Cerrato SG, Colomo OR, Martínez MP, Crespo RZ, García-Paredes PM, Cerdá EC, Lerma FA. [GEIPC-SEIMC (Study Group for Infections in the Critically Ill Patient of the Spanish Society for Infectious Diseases and Clinical Microbiology) and GTEI-SEMICYUC ( Working Group on Infectious Diseases of the Spanish Society of Intensive Medicine, Critical Care, and Coronary Units) recommendations for antibiotic treatment of gram-positive cocci infections in the critical patient]. Enferm Infecc Microbiol Clin 2007; 25:446-66. [PMID: 17692213 DOI: 10.1157/13108709] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In recent years, an increment of infections caused by gram-positive cocci has been documented in nosocomial and hospital-acquired-infections. In diverse countries, a rapid development of resistance to common antibiotics against gram-positive cocci has been observed. This situation is exceptional in Spain but our country might be affected in the near future. New antimicrobials active against these multi-drug resistant pathogens are nowadays available. It is essential to improve our current knowledge about pharmacokinetic properties of traditional and new antimicrobials to maximize its effectiveness and to minimize toxicity. These issues are even more important in critically ill patients because inadequate empirical therapy is associated with therapeutic failure and a poor outcome. Experts representing two scientific societies (Grupo de estudio de Infecciones en el Paciente Crítico de la SEIMC and Grupo de trabajo de Enfermedades Infecciosas de la SEMICYUC) have elaborated a consensus document based on the current scientific evidence to summarize recommendations for the treatment of serious infections caused by gram-positive cocci in critically ill patients.
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Olaechea Astigarraga PM, Garnacho Montero J, Grau Cerrato S, Rodríguez Colomo O, Palomar Martínez M, Zaragoza Crespo R, Muñoz García-Paredes P, Cerdá Cerdá E, Alvarez Lerma F. Recomendaciones GEIPC-SEIMC y GTEI-SEMICYUC para el tratamiento antibiótico de infecciones por cocos grampositivos en el paciente crítico. Med Intensiva 2007; 31:294-317. [PMID: 17663956 DOI: 10.1016/s0210-5691(07)74829-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In recent years, an increment of infections caused by gram-positive cocci has been documented in nosocomial and hospital-acquired infections. In diverse countries, a rapid development of resistance to common antibiotics against gram-positive cocci has been observed. This situation is exceptional in Spain but our country might be affected in the near future. New antimicrobials active against these multi-drug resistant pathogens are nowadays available. It is essential to improve our current knowledge about pharmacokinetic properties of traditional and new antimicrobials to maximize its effectiveness and to minimize toxicity. These issues are even more important in critically ill patients because inadequate empirical therapy is associated with therapeutic failure and a poor outcome. Experts representing two scientific societies (Grupo de estudio de Infecciones en el Paciente Critico de la SEIMC and Grupo de trabajo de Enfermedades Infecciosas de la SEMICYUC) have elaborated a consensus document based on the current scientific evidence to summarize recommendations for the treatment of serious infections caused by gram-positive cocci in critically ill patients.
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Affiliation(s)
- P M Olaechea Astigarraga
- Servicio de Medicina Intensiva, Hospital de Galdakao, Bo. de Labeaga s/n, 48960 Galdakao, Vizcaya, Spain.
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14
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Pea F, Viale P. Pharmacodynamics of antibiotics to treat multidrug-resistant Gram-positive hospital infections. Expert Rev Anti Infect Ther 2007; 5:255-70. [PMID: 17402840 DOI: 10.1586/14787210.5.2.255] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hospital infection due to multidrug-resistant Gram-positive bacteria may often represent a life-threatening challenge; thus, to appropriately combat them, clinicians should be confident and systematically apply several important pharmacodynamic concepts. The concept of 'correct antibiotic treatment' should include, in addition to an appropriate choice in terms of antimicrobial susceptibility, an appropriate dosage and administration schedule consistent with the pharmacodynamic principles. In the next few years, it is expected that some of the anti-Gram-positive antimicrobial agents that are currently under investigation will be added to the therapeutic armamentarium. However, optimization of the usage of old drugs still remains a clinical priority and a scientific challenge, whose dignity may be considered of similar importance to that of the assessment of the possible therapeutic role of the new compounds.
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Affiliation(s)
- Federico Pea
- University of Udine, Institute of Clinical Pharmacology & Toxicology, Department of Experimental and Clinical Pathology and Medicine, Medical School, P.le S. Maria della Misericordia 3, 33100 Udine, Italy.
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15
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The Effectiveness and Safety of Oral Linezolid as Primary or Secondary Treatment of Bloodstream Infections. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2006. [DOI: 10.1097/01.idc.0000226868.52136.24] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Athanassopoulos G, Pefanis A, Sakka V, Iliopoulos D, Perrea D, Giamarellou H. Linezolid in prophylaxis against experimental aortic valve endocarditis due to Streptococcus oralis or Enterococcus faecalis. Antimicrob Agents Chemother 2006; 50:654-7. [PMID: 16436723 PMCID: PMC1366895 DOI: 10.1128/aac.50.2.654-657.2006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
There are no experimental studies regarding the prophylactic efficacy of linezolid against infective endocarditis. Nonbacterial thrombotic endocarditis of the aortic valve was induced in rabbits by the insertion of a polyethylene catheter. Twenty-four hours later, animals were randomly assigned to a control group, and groups receiving either ampicillin (two doses of 40 mg/kg of body weight each, given intravenously, 2 h apart) or linezolid (a single per os dose of 75 mg/kg). The first dose of ampicillin and the single dose of linezolid were administered 0.5 and 1 h, respectively, prior to the intravenous inoculation of approximately 10(7) CFU of Streptococcus oralis or Enterococcus faecalis. Linezolid peak levels in rabbit serum were similar to the peak serum levels in humans following a 600-mg oral dose of linezolid. Linezolid prevented endocarditis in 87% of S. oralis-challenged rabbits (P < 0.001 versus controls; P = 0.026 versus ampicillin). In rabbits challenged with E. faecalis, linezolid prevented endocarditis in 73% (P = 0.003 versus controls; P = 0.049 versus ampicillin). Ampicillin prevented endocarditis due to S. oralis or due to E. faecalis in 47% (P = 0.005 versus controls) and in 30% (P = not significant versus controls) of the challenged animals, respectively. In conclusion, linezolid was effective as prophylaxis against endocarditis caused by a strain of S. oralis and to a lesser degree against that caused by a strain of E. faecalis. Its prophylactic efficacy was superior to that of ampicillin.
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Affiliation(s)
- George Athanassopoulos
- Fourth Department of Internal Medicine, General Hospital Attikon, Athens University School of Medicine, Athens, Greece
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17
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Dutronc H, Bocquentin F, Galpérine T, Lafarie-Castet S, Dupon M. [Linezolid, the first oxazolidinone antibiotic]. Med Mal Infect 2005; 35:427-34. [PMID: 16297585 DOI: 10.1016/j.medmal.2005.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2005] [Accepted: 09/12/2005] [Indexed: 10/25/2022]
Abstract
The spread of multiresistant Staphylococcus and Enterococcus strains required the development of new drugs. Linezolid is the first molecule of a new antibiotic family, oxazolidinones, with an original mechanism of action. In this general review, the authors first present its antibacterial activity, its pharmacokinetic properties, its therapeutic uses in serious Gram-positive infections, pneumonia, skin and soft tissue infections, and also in other indications. They then explain the rules for administration and tolerability.
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Affiliation(s)
- H Dutronc
- Fédération de maladies infectieuses, groupe hospitalier Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux cedex, France.
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Singh KV, Nallapareddy SR, Nannini EC, Murray BE. Fsr-independent production of protease(s) may explain the lack of attenuation of an Enterococcus faecalis fsr mutant versus a gelE-sprE mutant in induction of endocarditis. Infect Immun 2005; 73:4888-94. [PMID: 16041002 PMCID: PMC1201275 DOI: 10.1128/iai.73.8.4888-4894.2005] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An Enterococcus faecalis gelE insertion disruption mutant (TX5128), which produces neither gelatinase (GelE) nor the cotranscribed (in the wild type) serine protease (SprE), was found to be attenuated in a rat endocarditis model with a significant decrease in the endocarditis induction rate versus wild-type E. faecalis OG1RF (GelE(+), SprE(+)). TX5266, which has a nonpolar deletion in fsrB and, like TX5128, is phenotypically GelE(-) under usual conditions, was also studied; fsrB is a homologue of agrB of staphylococci and participates in regulation of gelE-sprE expression. Unexpectedly, TX5266 approximated wild-type OG1RF in the endocarditis model and was significantly less attenuated than TX5128. This is in contrast to other models which have found fsr mutants to be as or more attenuated than TX5128. Further study found that the fsrB mutant produced very low levels of gelatinase activity after prolonged incubation in vitro versus no gelatinase activity with TX5128 and did not show the extensive chaining characteristic of TX5128. Reverse transcription-PCR confirmed that gelE was expressed in TX5266 at a very low level versus wild-type OG1RF and was not expressed at all in TX5128. Possible explanations for the increased induction of endocarditis by TX5266 versus TX5128 include the production of low levels of protease(s) or some other effect(s) of the inactivation of the E. faecalis fsr regulator. The equivalent ability of OG1RF and its fsr mutant to initiate endocarditis may explain why we did not find naturally occurring fsr mutants, which account for ca. 35% of E. faecalis isolates, unrepresented in endocarditis versus fecal isolates.
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Affiliation(s)
- Kavindra V Singh
- Division of Infectious Diseases, Center for the Study of Emerging and Re-emerging Pathogens, University of Texas Medical School at Houston, 6431 Fannin, 2.112 MSB, Houston, TX 77030, USA
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19
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Long JK. Agents for the Treatment of Multidrug-resistant Gram-positive Endocarditis. Curr Infect Dis Rep 2005; 7:245-250. [PMID: 15963324 DOI: 10.1007/s11908-005-0055-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Several newer agents with activity against multidrug- resistant gram-positive pathogens are available. These agents have in vitro and clinical data supporting their utility in the treatment of infections caused by pathogens such as methicillin-resistant staphylococci and vancomycin-resistant enterococci. Daptomycin appears to be rapidly bactericidal, and linezolid and quinupristin/dalfopristin also are cidal against staphylococci. Although the agents have several properties that are attractive for use in endocarditis, clinical data are limited. Further investigation with each agent and combination therapy are warranted before definitive recommendations can be made.
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Affiliation(s)
- Jennifer K Long
- The Cleveland Clinic Foundation, Department of Pharmacy, 9500 Euclid Avenue, Cleveland, OH 44195, USA.
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20
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Calza L, Manfredi R, Chiodo F. Infective endocarditis: a review of the best treatment options. Expert Opin Pharmacother 2005; 5:1899-916. [PMID: 15330728 DOI: 10.1517/14656566.5.9.1899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Despite significant advances in antimicrobial therapy and an enhanced ability to diagnose and treat complications, infective endocarditis is still associated with substantial morbidity and mortality today, and its incidence has not decreased over the past decades. This apparent paradox may be explained by a progressive change in risk factors, leading to an evolution in its epidemiological and clinical features. In fact, new risk factors for endocarditis have emerged, such as intravenous drug abuse, diffusion of heart surgery procedures and prosthetic valve implantation, atherosclerotic valve disease in elderly patients, and nosocomial disease. Recently identified microorganisms (including Bartonella spp., Abiotrophia defectiva, and the HACEK group of bacteria [including Haemophilus spp., Actinobacillus spp., Cardiobacterium hominis, Eikenella corrodens and Kingella kingae]) are sometimes the cause of culture-negative endocarditis, and emerging resistant bacteria (such as methicillin- or vancomycin-resistant Staphylococci and vancomycin-resistant Enterococci) are becoming a new challenge for conventional antibiotic therapy. New therapeutic approaches need to be developed for the treatment of infective endocarditis caused by drug-resistant Gram-positive cocci, and some antimicrobial compounds recently introduced in clinical practice (such as streptogramins and oxazolidinones) may be an effective alternative, but further clinical studies are needed in order to confirm their effectiveness and safety. This review should help redefine the best therapeutic and preventive strategies against infective endocarditis.
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Affiliation(s)
- Leonardo Calza
- Department of Clinical and Experimental Medicine, Division of Infectious Diseases, Alma Mater Studiorum University of Bologna, S. Orsola Hospital, via G. Massarenti 11, I-40138 Bologna, Italy.
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21
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Streptococcus sanguinis Endocarditis in a Patient Who Received Clindamycin for Dental Prophylaxis. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2005. [DOI: 10.1097/01.idc.0000155839.72504.b6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Archuleta S, Murphy B, Keller MJ. Successful treatment of vancomycin-resistant Enterococcus faecium endocarditis with linezolid in a renal transplant recipient with human immunodeficiency virus infection. Transpl Infect Dis 2004; 6:117-9. [PMID: 15569227 DOI: 10.1111/j.1399-3062.2004.00059.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Infections with vancomycin-resistant Enterococci cause significant morbidity and mortality in hospitalized patients, including transplant recipients. We report the successful use of oral linezolid to treat a case of vancomycin-resistant Enterococcus faecium endocarditis in a renal transplant recipient with human immunodeficiency virus infection.
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Affiliation(s)
- S Archuleta
- Division of Infectious Disease, Department of Medicine, Mount Sinai School of Medicine, New York, New York, USA.
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23
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Abstract
Oxazolidinones are a new group of antibiotics. These synthetic drugs are active against a large spectrum of Gram-positive bacteria, including methicillin- and vancomycin-resistant staphylococci, vancomycin-resistant enterococci, penicillin-resistant pneumococci and anaerobes. Oxazolidinones inhibit protein synthesis by binding at the P site at the ribosomal 50S subunit. Resistance to other protein synthesis inhibitors does not affect oxazolidinone activity, however rare development of oxazolidinone resistance cases, associated with 23S rRNA alterations during treatment have been reported. Linezolid, the first oxazolidinone available, has already taken its place in the clinic for treatment of Gram-positive infections. Pharmacokinetic properties as well as its good penetration and accumulation in the tissue including bone, lung, vegetations, haematoma and cerebrospinal fluid, allow its use for surgical infections.
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Affiliation(s)
- Bülent Bozdogan
- Department of Pathology, Penn State University Hershey Medical Center, H083, 500 University Drive, PO Box 850 Hershey, PA 17033, USA
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24
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Zimmer SM, Caliendo AM, Thigpen MC, Somani J. Failure of linezolid treatment for enterococcal endocarditis. Clin Infect Dis 2003; 37:e29-30. [PMID: 12884185 DOI: 10.1086/375877] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2002] [Accepted: 03/03/2003] [Indexed: 11/03/2022] Open
Abstract
We describe a patient with Enterococcus faecalis endocarditis who failed to respond to treatment with linezolid.
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Affiliation(s)
- S M Zimmer
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
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25
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Ben Mansour EH, Jacob E, Monchi M, Ledoux D, Canivet JL, De Mol P, Damas P. Occurrence of MRSA endocarditis during linezolid treatment. Eur J Clin Microbiol Infect Dis 2003; 22:372-3. [PMID: 12768433 DOI: 10.1007/s10096-003-0959-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- E H Ben Mansour
- Department of General Intensive Care, University Hospital, Domaine universitaire du Sart-Tilman, 4000 Liege, Belgium
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26
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Carmona PM, Romá E, Monte E, García J, Gobernado M. [Role of linezolid in antimicrobial therapy]. Enferm Infecc Microbiol Clin 2003; 21:30-41. [PMID: 12550042 DOI: 10.1016/s0213-005x(03)72872-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The progressive emergence of multi-resistant gram-positive strains has prompted the search for new molecules (quinolones, streptogramins, oxazolidinones, ketolides, glycopeptides, daptomycin) to add to the current therapeutic arsenal. Linezolid, the first commercially available member of the oxazolidinone family, has evidenced activity against multi-resistant gram-positive strains (methicillin-resistant Staphylococcus aureus, S. aureus with decreased glycopeptide sensitivity, vancomycin-resistant Enterococcus spp., Streptococcus pneumoniae with decreased sensitivity to penicillin and cephalosporins), thereby providing a new option for treating infections by these microorganisms. This work reviews the microbiologic and pharmacologic aspects of this agent in order to establish its position among the available options for antimicrobial chemotherapy.
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27
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Rao N, White GJ. Successful treatment of Enterococcus faecalis prosthetic valve endocarditis with linezolid. Clin Infect Dis 2002; 35:902-4. [PMID: 12228838 DOI: 10.1086/342572] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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28
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Leclercq R. Les coques à Gram-positif multirésistants aux antibiotiques : intérêt du linézolide. Med Mal Infect 2002. [DOI: 10.1016/s0399-077x(02)00412-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Hoen B. Special issues in the management of infective endocarditis caused by gram-positive cocci. Infect Dis Clin North Am 2002; 16:437-52, xi. [PMID: 12092481 DOI: 10.1016/s0891-5520(01)00004-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Gram-positive cocci, mainly streptococci and staphylococci, continue to cause the majority of cases of infective endocarditis. Among the streptococci causing IE, the long-standing predominance of oral or viridans-group streptococci has progressively faded, while the number of cases caused by "enteric streptococci" (Streptococcus bovis and enterococci) has increased. While most oral streptococci and S. bovis strains remain fully sensitive to penicillin, nutritionally variant streptococci--now renamed Abiotrophia--and enterococci can exhibit resistance to penicillin and/or glycopeptides that makes endocarditis more difficult to treat. Among the staphylococci causing endocarditis, the increasing proportion of coagulase-negative and methicillin-resistant strains observed in recent years has changed the approach to choice of antibiotic therapy. The purpose of this paper is to focus on some new aspects of the management of antibiotic therapy of IE due to streptococci and staphylococci, including recent developments such as once-daily aminoglycoside administration in IE, outpatient antibiotic therapy, and the evaluation of new antibiotics.
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Affiliation(s)
- Bruno Hoen
- Service de Maladies Infectieuses et Tropicales, University of Besançon Medical Center, F-25030 Besançon, France.
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30
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Abstract
The oxazolidinones are a new chemical class of synthetic antmicrobials characterized by a unique mechanism of protein synthesis inhibition. Linezolid is the first compound of this class and has recently received approval for the treatment of community- and hospital-acquired pneumonia and skin and skin structure infections. In vitro tests demonstrate that linezolid possesses a significant activity against Gram-positive pathogens including methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE), vancomycin-intermediate strains (VISA) and penicillin-resistant pneumococci (PRPN). Combined with other drugs linezolid interacts favourably against many important pathogens and it is able to affect some bacterial virulence factors as well as produce a postantibiotic effect. Results from experimental models of infection reveal linezolid to be highly active in vivo against infections due to Gram-positive pathogens. Linezolid may be administered either intravenously or orally with oral bioavailability of approximately 100% and limited adverse effects. The clinical efficacy of linezolid has been investigated in several phase II and III trials. Linezolid has been proved to be useful in severe infections sustained by multiresistant Gram-positive micro-organisms. Synthesis of the second-generation oxazolidinones with improved potency against Gram-positive and negative bacteria is currently under way.
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Affiliation(s)
- A Marchese
- Institute of Microbiology, Genoa, Italy.
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31
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Delahaye F, Hoen B, McFadden E, Roth O, de Gevigney G. Treatment and prevention of infective endocarditis. Expert Opin Pharmacother 2002; 3:131-45. [PMID: 11829727 DOI: 10.1517/14656566.3.2.131] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The paper presents the most recent recommendations for the treatment and prevention of infective endocarditis (IE). The treatment of IE is complex and requires close collaboration among specialists in infectious diseases, cardiology, cardiac surgery and microbiology. The mainstay of medical treatment is antibiotic therapy. Theoretical considerations regarding vegetations and antibiotics have practical consequences on the route and modalities of administration of antibiotics and on the techniques used to monitor treatment. The choice of antibiotics depends on the microorganism (streptococci, enterococci, staphylococci, HACEK group [Haemophilus sp., Actinobacillus sp., Cardiobacterium sp., Eikenella sp. and Kingella sp.], Coxiella, Brucella, Legionella, Bartonella, fungi) and on whether IE occurs on native or prosthetic valves. Treatment of IE with negative blood cultures is particularly difficult. Cardiac surgery is often needed during the bacteriologically active period (in ~50% of patients). The decision to intervene and the optimal timing of the intervention requires careful consideration of multiple potential risks: the haemodynamic risk, the infectious risk, the risk due to cardiac lesions, the risk due to extracardiac complications and the risk due to the location of infective endocarditis. Even though the efficacy of antibiotic prophylaxis of IE is not completely proven, it is recommended for selected patients who undergo an at-risk procedure. Lists of cardiac conditions and of medical procedures at risk are presented; specific antibiotic prophylactic regimens for dental and upper respiratory tract procedures in out-patients, procedures under general anaesthesia and urological and GI procedures are outlined.
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Affiliation(s)
- François Delahaye
- Hôpital Louis Pradel, BP Lyon Montchat, 69394 Lyon Cedex 03, France.
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32
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Abstract
Many common gram-positive pathogens (eg, Staphylococcus aureus, Enterococcus spp, and Streptococcus pneumoniae) have become increasingly resistant to antimicrobial agents, and new drugs with activity against gram-positive bacteria are urgently needed. The oxazolidinones, a new chemical class of synthetic antimicrobial agent, have a unique mechanism of inhibiting bacterial protein synthesis. Linezolid, the first oxazolidinone to be approved for clinical use, displays in-vitro activity (generally bacteriostatic) against many important resistant pathogens, including meticillin-resistant Staph aureus, vancomycin-resistant enterococci, and penicillin-resistant Strep pneumoniae. Linezolid is a parenteral agent that also possesses near-complete oral bioavailability plus favourable pharmacokinetic and toxic effect profiles. Clinical trials confirm the activity of linezolid in the setting of pneumonia, skin and soft-tissue infections, and infections due to vancomycin-resistant enterococci. Linezolid shows promise as an alternative to glycopeptides and streptogramins to treat serious infections due to resistant gram-positive organisms. New agents with greater potency and new spectra of activity could arise from further modification of the oxazolidinone nucleus.
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Affiliation(s)
- D J Diekema
- Division of Infectious Diseases, Department of Internal Medicine, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA.
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