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Fluconazole prophylaxis in high-risk neonates
Brent N Reed1, Kelly E Caudle, P David Rogers
1University of North Carolina Hospitals & Clinics, Chapel Hill, NC, USA.
Insights
Fluconazole prophylaxis may reduce fungal infections in critically ill neonates, but evidence for improved long-term outcomes is lacking. Further research is needed to identify specific neonates who would benefit from this intervention.
Area of Science:
- Neonatal Medicine
- Infectious Diseases
- Pharmacology
Background:
- Critically ill neonates are susceptible to Candida spp. colonization and invasive fungal infections.
- Fluconazole prophylaxis is considered for at-risk neonates due to its success in immunocompromised patients.
- Early diagnosis and treatment of invasive fungal infections remain challenging.
Purpose of the Study:
- To evaluate existing literature on fluconazole prophylaxis in high-risk neonates.
- To assess the efficacy and safety of fluconazole prophylaxis in preventing fungal colonization and invasive infections.
- To determine if fluconazole prophylaxis impacts long-term morbidity or mortality in neonates.
Main Methods:
- Literature search of MEDLINE (February 2001-August 2009) using terms 'fluconazole' and 'prophylaxis'.
- Inclusion of studies limited to the pediatric age group (birth-18 years).
- Review of reference citations from identified articles and evaluation of all identified English-language prospective and retrospective studies.
Main Results:
- Fluconazole prophylaxis appears to reduce rates of fungal colonization and invasive fungal infections in neonates.
- No significant difference in long-term morbidity or mortality was demonstrated across reviewed trials.
- Concerns exist regarding adverse effects of prolonged fluconazole exposure and lack of standardized study designs.
Conclusions:
- Fluconazole prophylaxis may benefit critically ill neonates with specific risk factors like central venous access or high incidence of fungal infections.
- Current research does not support routine fluconazole prophylaxis based solely on birth weight or gestational age.
- Multifactor analysis is required to identify specific neonatal subgroups that would benefit from fluconazole prophylaxis.
Objective:
To evaluate the literature regarding the use of fluconazole prophylaxis in high-risk neonates.
Data Sources:
Literature was accessed through MEDLINE (February 2001-August 2009) using the search terms fluconazole and prophylaxis, with limits for age group (ie, birth-18 y). Reference citations from identified articles were also reviewed. DATA SELECTION AND DATA EXTRACTION: All prospective and retrospective studies in English identified from MEDLINE were evaluated.
Data Synthesis:
Critically ill neonates possess a number of risk factors that predispose them to fungal colonization with Candida spp. In many cases, colonization may progress to invasive systemic infections despite efforts aimed at early diagnosis and treatment. Because of its success among immunocompromised patients, fluconazole prophylaxis has been suggested as a possible approach for reducing the rates of both colonization and invasive fungal infections among at-risk neonates. To date, 4 prospective randomized controlled trials and 8 retrospective cohort studies have examined fluconazole prophylaxis in neonates. Although fluconazole prophylaxis appears to reduce the rates of colonization and invasive fungal infections, no trial in this review was able to demonstrate a significant difference in long-term morbidity or mortality. Concerns also remain regarding the adverse effects associated with prolonged exposure to fluconazole therapy. Lack of standardized study designs and treatment regimens also limit widespread recommendation for the use of fluconazole prophylaxis in clinical practice.
Conclusions:
While it may be beneficial for critically ill neonates with certain predisposing risk factors (eg, central venous access, sustained exposure to broad-spectrum antibiotics, or units with significantly high incidence of invasive fungal infections), existing research does not support the use of fluconazole prophylaxis based on birth weight or gestational age alone. Multifactor analysis evaluating the effect of fluconazole prophylaxis is necessary to establish which neonates would benefit from this practice.
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