Journal of Antimicrobial Chemotherapy (2002) 49, 209-213
© 2002 The British Society for Antimicrobial Chemotherapy
Brief report |
Resistance to amphotericin B does not emerge during treatment for invasive aspergillosis
Division of Infectious Diseases, Department of Internal Medicine, Wayne State University School of Medicine, Detroit, MI 48201, USA
Emergence of resistance to antifungal drugs during therapy for invasive aspergillosis has received scant attention. We recovered Aspergillus isolates from six patients with invasive aspergillosis, who were receiving amphotericin B before fungal isolation. Although isolates were susceptible to amphotericin B in vitro, none of the patients survived. The MIC of amphotericin B for isolates was similar to that for isolates from 35 patients with no prior exposure to amphotericin B. Laboratory attempts to produce amphotericin B resistance in Aspergillus were unsuccessful. These data indicate that emergence of resistance to amphotericin B is uncommon during therapy for invasive aspergillosis.
* Correspondence address. Division of Infectious Diseases, 4 Yellow Center, Room 415, Harper Hospital, 3990 John R, Detroit, MI 48201, USA. Tel: +1-313-745-9649; Fax: +1-313-993-0302; E-mail: pchandrasekar{at}intmed.wayne.edu
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