Abstract

DUARTE, Andreína et al. In vitro susceptibility to five antifungals of Fusarium solani Complex isolates obtained from corneal ulcers. Rev. Soc. Ven. Microbiol. [online]. 2014, vol.34, n.2, pp.75-80. ISSN 1315-2556.

The Fusarium solani Complex (FSC) is distributed in nature, producing a wide spectrum of infections in humans, from superficial ones such as keratitis, to invasive fungal infections, characterized by their resistance to antimycotics. The purpose of this investigation was to determine the in vitro susceptibility of the FSC to five antifungals. We used 30 isolates obtained from corneal ulcers kept at the culture collection of the Instituto Nacional de Higiene “Rafael Rangel” and we followed the protocol described in the M38-A2 document of the Clinical and Laboratory Standards Institute (CLSI) determining the Minimal Inhibitory Concentrations (MIC) by broth microdilution for amphotericin B, itraconazole, posaconazole, voriconazole and fluconazole. In general, all the drugs presented high MICs, voriconazole and amphotericin B being the antifungals which showed the best activity, while itraconazole, posaconazole and fluconazole showed a null activity. The results of this study provided, for the first time in Venezuela, important information about the behavior of the FSC towards commonly used antifungals. It is mandatory that physicians know the activity of these drugs in order to be able to take decisions and devise an guide an appropriate therapeutic management.

Keywords : Fusarium solani Complex; in vitro susceptibility tests; antifungals; M38-A2 document.

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