Native Valve Endocarditis Caused by Corynebacterium striatum with Heterogeneous High-Level Daptomycin Resistance: Collateral Damage from Daptomycin Therapy?

Autor: Audrey Wanger, Heidi B. Kaplan, Siraya Jaijakul, Cesar A. Arias, Barbara E. Murray, Truc T. Tran, Diana Panesso, Cole T. Lewis, Lorena Diaz
Přispěvatelé: Panesso, Diana [0000-0002-4049-9702]
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Repositorio U. El Bosque
Universidad El Bosque
instacron:Universidad El Bosque
Popis: We describe a patient who developed Corynebacterium striatum native valve endocarditis after receiving two 6-week courses of daptomycin for the treatment of methicillin-resistant Staphylococcus aureus bacteremia and osteomyelitis. The organism exhibited in vitro heteroresistance to daptomycin, with two subpopulations showing daptomycin susceptibility (MIC of ≤0.094 μg/ml) and high-level resistance to daptomycin (MIC of ≥256 μg/ml). The selection of daptomycin-resistant Gram-positive skin flora with the potential of causing invasive disease may be a concern during prolonged courses of daptomycin.
Databáze: OpenAIRE