Background Invasive fungal infection is associated with substantialmorbidity and mortality in preterm infants. We evaluated theefficacy of prophylactic fluconazole in preventing fungal colonizationand invasive infection in extremely-low-birth-weight infants.
Methods We conducted a prospective, randomized, double-blindclinical trial over a 30-month period in 100 preterm infantswith birth weights of less than 1000 g. The infants were randomlyassigned during the first five days of life to receive eitherintravenous fluconazole or placebo for six weeks. We obtainedweekly surveillance cultures from all patients.
Results The 50 infants randomly assigned to fluconazole andthe 50 control infants were similar in terms of birth weight,gestational age at birth, and base-line risk factors for fungalinfection. During the six-week treatment period, fungal colonizationwas documented in 30 infants in the placebo group (60 percent)and 11 infants in the fluconazole group (22 percent; differencein risk, 0.38; 95 percent confidence interval, 0.18 to 0.56;P=0.002). Invasive fungal infection with positive growth offungal isolates from the blood, urine, or cerebrospinal fluiddeveloped in 10 infants in the placebo group (20 percent) andnone of the infants in the fluconazole group (difference inrisk, 0.20; 95 percent confidence interval, 0.04 to 0.36; P=0.008).The sensitivities of the fungal isolates to fluconazole didnot change during the study, and no adverse effects of the fluconazoletherapy were documented.
Conclusions Prophylactic administration of fluconazole duringthe first six weeks of life is effective in preventing fungalcolonization and invasive fungal infection in infants with birthweights of less than 1000 g.
Source Information
From the Departments of Pediatrics (D.K., R.B., M.R., L.G.D.), Pathology and Microbiology (K.C.H.), and Health Evaluation Sciences (J.T.P.), University of Virginia School of Medicine, Charlottesville.
Address reprint requests to Dr. Kaufman at the Division of Neonatology, Department of Pediatrics, Box 800386, University of Virginia Health System, Charlottesville, VA 22908, or at dak4r{at}virginia.edu.
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