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Fosbol E, Park LP, Chu V, Athan E, Delahaye F, Freiberger T, Lamas C, Miro JM, Strahilevitz J, Tribouilloy C, Durante-Mangoni E, Pericas JM, Fernandez-Hidalgo N, Nacinovich F, Rizk H. P2472The association between vegetation size and surgical treatment on 6-month mortality in left-sided infective endocarditis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- E Fosbol
- University Hospital Gentofte, Copenhagen, Denmark
| | - L P Park
- Duke Clinical Research Institute, Durham, United States of America
| | - V Chu
- Duke Clinical Research Institute, Durham, United States of America
| | - E Athan
- Barwon Health and Deakin University, Geelong, Australia
| | - F Delahaye
- Hospital Louis Pradel of Bron, Lyon, France
| | | | - C Lamas
- National Institute of Cardiology, Rio de Janeiro, Brazil
| | - J M Miro
- Institute of Biomedical Research August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | | | | | - E Durante-Mangoni
- University of Campania, Monaldi Hospital, Internal Medicine, Naples, Italy
| | - J M Pericas
- Institute of Biomedical Research August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - N Fernandez-Hidalgo
- University Hospital Vall d'Hebron, Servei de Malalties Infeccioses, Barcelona, Spain
| | - F Nacinovich
- Cardiovascular Institute of Buenos Aires (ICBA), Buenos Aires, Argentina
| | - H Rizk
- Cairo University Hospitals, Cairo, Egypt
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Garcia-de-la-Maria C, Xiong YQ, Pericas JM, Armero Y, Moreno A, Mishra NN, Rybak MJ, Tran TT, Arias CA, Sullam PM, Bayer AS, Miro JM. Impact of High-Level Daptomycin Resistance in the Streptococcus mitis Group on Virulence and Survivability during Daptomycin Treatment in Experimental Infective Endocarditis. Antimicrob Agents Chemother 2017; 61:e02418-16. [PMID: 28264848 PMCID: PMC5404581 DOI: 10.1128/aac.02418-16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/16/2017] [Indexed: 11/20/2022] Open
Abstract
Among the viridans group streptococci, the Streptococcus mitis group is the most common cause of infective endocarditis. These bacteria have a propensity to be β-lactam resistant, as well as to rapidly develop high-level and durable resistance to daptomycin (DAP). We compared a parental, daptomycin-susceptible (DAPs) S. mitis/S. oralis strain and its daptomycin-resistant (DAPr) variant in a model of experimental endocarditis in terms of (i) their relative fitness in multiple target organs in this model (vegetations, kidneys, spleen) when animals were challenged individually and in a coinfection strategy and (ii) their survivability during therapy with daptomycin-gentamicin (an in vitro combination synergistic against the parental strain). The DAPr variant was initially isolated from the cardiac vegetations of animals with experimental endocarditis caused by the parental DAPs strain following treatment with daptomycin. The parental strain and the DAPr variant were comparably virulent when animals were individually challenged. In contrast, in the coinfection model without daptomycin therapy, at both the 106- and 107-CFU/ml challenge inocula, the parental strain outcompeted the DAPr variant in all target organs, especially the kidneys and spleen. When the animals in the coinfection model of endocarditis were treated with DAP-gentamicin, the DAPs strain was completely eliminated, while the DAPr variant persisted in all target tissues. These data underscore that the acquisition of DAPr in S. mitis/S. oralis does come at an intrinsic fitness cost, although this resistance phenotype is completely protective against therapy with a potentially synergistic DAP regimen.
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Affiliation(s)
| | - Y Q Xiong
- LA Biomedical Research Institute, Torrance, California, USA
- Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - J M Pericas
- Hospital Clinic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Y Armero
- Hospital Clinic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - A Moreno
- Hospital Clinic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - N N Mishra
- LA Biomedical Research Institute, Torrance, California, USA
- Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - M J Rybak
- Anti-Infective Research Laboratory, Wayne State University, Detroit, Michigan, USA
| | - T T Tran
- University of Texas School of Medicine, Houston, Texas, USA
| | - C A Arias
- University of Texas School of Medicine, Houston, Texas, USA
| | - P M Sullam
- Veterans Affairs Medical Center and the University of California, San Francisco, California, USA
| | - A S Bayer
- LA Biomedical Research Institute, Torrance, California, USA
- Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - J M Miro
- Hospital Clinic-IDIBAPS, University of Barcelona, Barcelona, Spain
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3
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del Río A, Gasch O, Moreno A, Peña C, Cuquet J, Soy D, Mestres CA, Suárez C, Pare JC, Tubau F, Garcia de la Mària C, Marco F, Carratalà J, Gatell JM, Gudiol F, Miró JM, del Rio A, Moreno A, Pericas JM, Cervera C, Gatell JM, Marco F, de la Maria CG, Armero Y, Almela M, Mestres CA, Pare JC, Fuster D, Cartana R, Ninot S, Azqueta M, Sitges M, Heras M, Pomar JL, Ramirez J, Brunet M, Soy D, Llopis J, Gasch O, Suarez C, Pena C, Pujol M, Ariza J, Carratala J, Gudiol F, Cuquet J, Marti C, Mijana M. Efficacy and safety of fosfomycin plus imipenem as rescue therapy for complicated bacteremia and endocarditis due to methicillin-resistant Staphylococcus aureus: a multicenter clinical trial. Clin Infect Dis 2014; 59:1105-12. [PMID: 25048851 DOI: 10.1093/cid/ciu580] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND There is an urgent need for alternative rescue therapies in invasive infections caused by methicillin-resistant Staphylococcus aureus (MRSA). We assessed the clinical efficacy and safety of the combination of fosfomycin and imipenem as rescue therapy for MRSA infective endocarditis and complicated bacteremia. METHODS The trial was conducted between 2001 and 2010 in 3 Spanish hospitals. Adult patients with complicated MRSA bacteremia or endocarditis requiring rescue therapy were eligible for the study. Treatment with fosfomycin (2 g/6 hours IV) plus imipenem (1 g/6 hours IV) was started and monitored. The primary efficacy endpoints were percentage of sterile blood cultures at 72 hours and clinical success rate assessed at the test-of-cure visit (45 days after the end of therapy). RESULTS The combination was administered in 12 patients with endocarditis, 2 with vascular graft infection, and 2 with complicated bacteremia. Therapy had previously failed with vancomycin in 9 patients, daptomycin in 2, and sequential antibiotics in 5. Blood cultures were negative 72 hours after the first dose of the combination in all cases. The success rate was 69%, and only 1 of 5 deaths was related to the MRSA infection. Although the combination was safe in most patients (94%), a patient with liver cirrhosis died of multiorgan failure secondary to sodium overload. There were no episodes of breakthrough bacteremia or relapse. CONCLUSIONS Fosfomycin plus imipenem was an effective and safe combination when used as rescue therapy for complicated MRSA bloodstream infections and deserves further clinical evaluation as initial therapy in these infections.
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Affiliation(s)
- Ana del Río
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
| | - Oriol Gasch
- Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat Corporació Sanitària Parc Taulí, Universitat Autònoma de Barcelona, Sabadell
| | - Asunción Moreno
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
| | - Carmen Peña
- Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat
| | - Jordi Cuquet
- Hospital General de Granollers, Universitat Internacional de Catalunya, Barcelona
| | - Dolors Soy
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
| | - Carlos A Mestres
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
| | - Cristina Suárez
- Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat
| | - Juan C Pare
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
| | - Fe Tubau
- Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat CIBERES (CIBER de Enfermedades Respiratorias), ISCIII, Madrid
| | | | - Francesc Marco
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona Barcelona Centre for International Health Research (CRESIB, Hospital Clínic-Universitat de Barcelona), Spain
| | - Jordi Carratalà
- Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat
| | - José M Gatell
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
| | - Francisco Gudiol
- Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge, University of Barcelona, L'Hospitalet de Llobregat
| | - José M Miró
- Hospital Clínic-Institut d' Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona
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