Article

Successful use of oral linezolid as a single active agent in endocarditis unresponsive to conventional antibiotic therapy.

Department of Cardiology, Castle Hill Hospital, Cottingham, East Yorkshire, UK.
Journal of Infection (impact factor: 4.13). 09/2003; 47(2):164-6.
Source: PubMed

ABSTRACT Treatment of resistant gram-positive endocarditis is difficult. We report a case of resistant Staphylococcus epidermidis endocarditis that failed to respond to conventional antibiotic therapy but was treated successfully with an oral regimen of a new antibiotic, linezolid as a single active agent. This case report demonstrates the use of linezolid as an effective alternative to conventional antibiotics in such cases.

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    D W Wareham, H Abbas, A M Karcher, S S Das
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    ABSTRACT: Clinical experience with linezolid in the treatment of infective endocarditis either alone or in combination with other agents is limited. We describe our experience in the treatment of two patients with IE due to multi-resistant Gram-positive bacteria. One patient with MRSE and one with VRE endocarditis were treated with regimens containing linezolid. The killing kinetics of linezolid in combination with gentamicin or vancomycin against isolates of Staphylococcus epidermidis and Enterococcus faecalis were analysed in vitro. Clinical response and eradication of bacteraemia was achieved with linezolid therapy in both patients. Time-kill curve studies showed that linezolid was bacteriostatic against the MRSE and VRE isolates used. Combination with gentamicin or vancomycin did not produce synergy or antagonism but at best only marginal additive effect. Although bacteriostatic, linezolid provides an important therapeutic option in IE due to multi-resistant Gram-positive pathogens. It challenges the conventional wisdom that bactericidal synergy is required for the effective treatment of most cases of IE due to Gram-positive organisms.
    The Journal of infection 05/2006; 52(4):300-4. · 4.13 Impact Factor
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

cases
 
conventional antibiotic therapy
 
conventional antibiotics
 
effective alternative
 
new antibiotic
 
oral regimen
 
single active agent