Candidemia: Current Epidemiologic Characteristics and a Long-term Follow-up of the Survivors

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Abstract
All consecutive patients with positive blood culture for Candida species over a 6–year period were evaluated to define recent epidemiologic characteristics of candidemia, and to assess the prevalence of late complications. We encountered 106 cases; medical records were available for 99 of them. The rate of candidemia was increasing until 1990, after which it declined. C. albicans was the most common species, but in the last 2 years, C. tropicalis and C. parapsilosis were emerging. Overall mortality rate was 54.5% without significant variation during the study period. Antifungal therapy was withheld in 24/99 cases (24.2%). Decision to withhold treatment was taken in 19/59 cases (32.2%) before the availability of fluconazole in 1990, compared with 5/40 cases (12.5%) afterward (p < 0.05). Follow-up was possible in 35 instances for an average period of 17.1 months (range: 1–48 months); 7 of these individuals, all with transient candidemia, were untreated. None of the survivors developed late complications. These findings demonstrate that candidemia appears to be declining since 1990, with a noticeable decrease in the prevalence of C. albicans but an increase in that of C. tropicalis and C. parapsilosis, that fewer patients are left untreated since fluconazole became available, and that the risk of late complications among the survivors is low.

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