Journal Article

β-<span class="smallCaps">d</span>-Glucan as a Diagnostic Adjunct for Invasive Fungal Infections: Validation, Cutoff Development, and Performance in Patients with Acute Myelogenous Leukemia and Myelodysplastic Syndrome

Zekaver Odabasi, Gloria Mattiuzzi, Elihu Estey, Hagop Kantarjian, Fumihiro Saeki, Richard J. Ridge, Paul A. Ketchum, Malcolm A. Finkelman, John H. Rex and Luis Ostrosky-Zeichner

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 39, issue 2, pages 199-205
Published in print July 2004 | ISSN: 1058-4838
Published online July 2004 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/421944
β-d-Glucan as a Diagnostic Adjunct for Invasive Fungal Infections: Validation, Cutoff Development, and Performance in Patients with Acute Myelogenous Leukemia and Myelodysplastic Syndrome

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The Glucatell (1→3)-β-d-glucan (BG) detection assay (Associates of Cape Cod) was studied as a diagnostic adjunct for invasive fungal infections (IFIs). On the basis of findings from a preliminary study of 30 candidemic subjects and 30 healthy adults, a serum BG level of ⩾60 pg/mL was chosen as the cutoff. Testing was performed with serial serum samples obtained from 283 subjects with acute myeloid leukemia or myelodysplastic syndrome who were receiving antifungal prophylaxis. At least 1 serum sample was positive for BG at a median of 10 days before the clinical diagnosis in 100% of subjects with a proven or probable IFI. IFIs included candidiasis, fusariosis, trichosporonosis, and aspergillosis. Absence of a positive BG finding had a 100% negative predictive value, and the specificity of the test was 90% for a single positive test result and ⩾96% for ⩾2 sequential positive results. The Glucatell serum BG detection assay is highly sensitive and specific as a diagnostic adjunct for IFI.

Journal Article.  3524 words.  Illustrated.

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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