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Susceptibilidad antifúngica de Candida albicans recuperadas de pacientes con SIDA y candidiasis orofaríngea y esofágica: Experiencia con Etest®

Author
Tapia P,Cecilia

González A,Patricia

Pereira A,Angélica

Pérez G,Jorge

Noriega R,Luis M

Palavecino R,Elizabeth

Full text
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000500006
Abstract
Background: Oropharyngeal candidiasis (OPC) and esophageal candidiasis (EPC) are frequent complications in AIDS patients. The use of Fluconazole, an effective and a low toxicity drug, has been associated to the emergency of secondary resistant strains. For this reason, in vitro antifungal susceptibility tests are necessary to predict a therapeutic failure. Etest® is an easy to perform alternative test, that has showed a good agreement with the broth microdilution reference method (NCCLS, document M27-A). Aim: To measure the susceptibility of C. albicans isolates from AIDS patients complicated with OPC and EPC to Amphotericin B (AmB) and Fluconazole (Flu) using Etest®. Material and methods: Twenty strains from 20 AIDS patients were studied. AmB was tested in RPMI 1640 agar and Flu in Casitone agar. Results: All studied strains showed minimal inhibitory concentrations (MICs) <1 mg/mL for AmB. A highly resistant strain to Flu (>256 mg/mL) was isolated from a patient previously treated with Flu. Conclusions: In AIDS patients with OPC and EPC, the susceptibility to Flu of the isolates should be screened, to detect resistant strains. Etest®; is a reliable alternative in these cases, for laboratories that cannot use the reference method (Rev Méd Chile 2003; 131: 515-19).
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Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
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Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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