Analysis of the risk factors associated with the emergence of azole resistant oral candidosis in the course of HIV infection

The Journal of Antimicrobial Chemotherapy
Mario TumbarelloL Ortona

Abstract

The objective of this case-control study, conducted in a large Italian university hospital over a 12-month period, was to evaluate the risk factors associated with the emergence of azole resistant oral candidosis in 64 Human Immunodeficiency Virus (HIV) infected patients. A swab was obtained from each patient by brushing candidal lesions. Candida albicans was isolated in 41 patients (64%), Candida glabrata in ten (16%), Candida krusei in five (8%), Candida kefyr in two (3%), Candida tropicalis in two (3%), and Candida lipolytica and Candida guilliermondii in one case, respectively. Two patients suffered a double infection i.e. C. albicans+C. krusei and C. albicans+C. glabrata, respectively. Candida species were tested in vitro for their susceptibility to ketoconazole, fluconazole, itraconazole and amphotericin B. MICs of the four antifungal drugs were obtained for each yeast using a microdilution broth method developed in our laboratory. Twenty four (37%) of the isolated strains were resistant both to itraconazole and fluconazole, five (8%) to fluconazole alone, and two (3%) to ketoconazole alone, while none of the isolated strains was resistant to amphotericin B. Patients with oral candidosis caused by a strain resistant to on...Continue Reading

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