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- W2137784183 abstract "ABSTRACT The activity of five simulated antifungal regimens for eradication of catheter-related bloodstream Candida infection was evaluated with an in vitro pharmacodynamic model. Single-lumen central venous catheters were colonized with Candida species by sequentially incubating central venous catheters in plasma and then in growth medium (RPMI plus morpholinepropanesulfonic acid) containing a standardized suspension (10 5 CFU/ml) of Candida albicans , Candida glabrata , or slime-producing Candida parapsilosis . Colonized central venous catheters were then placed in a one-compartment pharmacodynamic model where five antifungal regimens (plus control) were simulated: amphotericin B, 1.0 mg/kg every 24 h; amphotericin B, 0.5 mg/kg every 24 h; fluconazole, 400 mg every 24 h; fluconazole, 800 mg every 24 h; and voriconazole, 4 mg/kg every 12 h. During exposure to the simulated clinical regimens, samples were serially removed from the model over 48 h for quantitation of viable organisms. All antifungal regimens suppressed fungal counts by both peripheral and catheter sampling versus control ( P = 0.001). Overall, antifungal activity ranked amphotericin B (1 mg/kg) > amphotericin B (0.5 mg/kg) ≥ voriconazole > fluconazole (800 mg) ≥ fluconazole (400 mg). No regimen, however, completely eradicated (by culture and electron microscopy) central venous catheter colonization. Regrowth was noted in the model during therapy against C. glabrata and C. parapsilosis but was not associated with an increase in the MICs for the isolates. Lack of in vitro antifungal activity against biofilm-encased organisms appeared to be the primary reason for mycological failure of antifungal regimens in the model." @default.
- W2137784183 created "2016-06-24" @default.
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- W2137784183 date "2002-11-01" @default.
- W2137784183 modified "2023-09-27" @default.
- W2137784183 title "Antifungal Activity of Amphotericin B, Fluconazole, and Voriconazole in an In Vitro Model of <i>Candida</i> Catheter-Related Bloodstream Infection" @default.
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- W2137784183 doi "https://doi.org/10.1128/aac.46.11.3499-3505.2002" @default.
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