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D-Arabinitol (DA) is a useful diagnostic marker for candidiasis in patients with neutropenia and other high-risk groups, but its use in unselected patients with a broad range of underlying diseases and conditions has not been studied. We used an automated enzymatic fluorometric assay to measure serum DA/creatinine ratios (DA/cr's) in 30 healthy adults, 100 hospitalized controls without Candida fungemia, and 83 patients from a study of all Candida fungemias in Connecticut between October 1998 and September 1999. Sixty-three of 83 (76%) fungemic patients and 11 of 100 (11%) nonfungemic controls had serum DA/cr's &gt;or=3.9 microM/mg/dl (mean + 3 standard deviations for 30 healthy adults). High serum DA/cr's were less frequent in patients with cancer or fungemia caused by the DA nonproducer Candida glabrata than in patients with cancer or fungemia caused by a DA producer, C. albicans, C. tropicalis, or C. parapsilosis. The serum DA/cr was first &gt;or=3.9 microM/mg/dl before, on the same day as, or after the first positive blood culture was drawn for 30 (36%), 22 (27%), and 11 (13%) fungemia patients, respectively. Mortality did not differ significantly among the patients with high or normal initial or peak serum DA/cr's, but mortality was higher if any serum DA/cr value was &gt;or=3.9 microM/mg/dl 3 or more days after the onset of fungemia (18/27 versus 4/24 patients, respectively; P &lt; 0.001). We conclude that serum DA/cr's are useful both for the initial diagnosis of Candida fungemia and for prognostic purposes for unselected patients with a broad range of underlying diseases and conditions.

journal of clinical microbiology

Measurement of Serum <scp>d</scp> -Arabinitol/Creatinine Ratios for Initial Diagnosis and for Predicting Outcome in an Unselected, Population-Based Sample of Patients with <i>Candida</i> Fungemia

Measurement of Serum d -Arabinitol/Creatinine Ratios for Initial Diagnosis and for Predicting Outcome in an Unselected, Population-Based Sample of Patients with Candida Fungemia