Resumen

CARRION, Natalia Andrea et al. Identificación y sensibilidad antibiótica directas desde el hemocultivo positivo para bacilos gram negativos. Rendimiento comparativo de los sistemas Vitek 2C y Phoenix. Acta bioquím. clín. latinoam. [online]. 2023, vol.57, n.2, pp.221-225. ISSN 0325-2957.

The aim of this study was to compare the results of identification and antimicrobial susceptibility tests obtained by the Vitek 2C (bioMérieux, France) and Phoenix (Becton Dickinson, USA) systems directly from positive blood cultures. A prospective observational study was performed at the Pedro Mallo Navy Hospital in Buenos Aires, Argentina, which included 70 monomicrobial bacteremias by gram negative rods. Correct identification by Vitek® 2C and Phoenix was 100% and 97%, respectively [p: not significant (NS)]. Categorical agreement for all antimicrobials was 97.1% and 98.1% (p: NS) with Vitek 2C and Phoenix, respectively. The mean time to result was 10.19 h and 13.8 h (p: NS), respectively. Vitek 2C and Phoenix are important, rapid and reliable tools for identification and susceptibility testing when performed directly from positive blood cultures.

Palabras clave : Vitek 2C; Phoenix; Bacteremia; Gram-negative rods.

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