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An Ex vivo Assay to Study Candida albicans Hyphal Morphogenesis in the Gastrointestinal Tract
Published on: July 1, 2020
Fungal infections in neonates: update on prevention and treatment
1Department of Pediatrics, University of Virginia School of Medicine Charlottesville, VA 22908, USA. dak4r@virginia.edu
Abstract:
Neonates with gastrointestinal diseases and extremely preterm infants are at highest risk for developing invasive fungal infections. Candida species are commensal organisms that colonize skin and mucosal surfaces as well as adhere to catheter surfaces. Due to the immature immune system of neonates including compromise of the developing barrier defenses of the skin or mucosal membranes, Candida can invade into the bloodstream and disseminate, often making these infections difficult to eradicate. Treatment of bloodstream infections uniquely involves both starting antifungal therapy and removing central venous catheters. Liposomal amphotericin formulations and echinochandins are currently being studied in neonates. Prevention for high risk patients is now feasible with fluconazole prophylaxis.
Insights
Neonates, especially extremely preterm infants, face high risks of invasive fungal infections from Candida. Fluconazole prophylaxis offers a feasible prevention strategy for these vulnerable infants.
Area of Science:
- Neonatal Medicine
- Infectious Diseases
- Mycology
Background:
- Neonates, particularly those with gastrointestinal issues and extreme prematurity, are highly susceptible to invasive fungal infections.
- Candida species, common commensals, can cause disseminated infections in neonates due to immature immune systems and compromised barrier defenses.
- Catheter surfaces provide a nidus for Candida colonization and subsequent bloodstream invasion.
Purpose of the Study:
- To review the risks and management of invasive Candida infections in neonates.
- To highlight current and emerging treatment strategies for neonatal candidiasis.
- To emphasize the role of antifungal prophylaxis in high-risk neonates.
Main Methods:
- Literature review of studies on neonatal invasive fungal infections.
- Analysis of Candida species' pathogenesis in the neonatal population.
- Evaluation of current and investigational antifungal therapies and prophylactic measures.
Main Results:
- Invasive fungal infections, primarily Candida, pose a significant threat to high-risk neonates.
- Successful treatment requires a combination of antifungal agents and central venous catheter removal.
- Liposomal amphotericin formulations and echinocandins are under investigation for neonatal use.
- Fluconazole prophylaxis has emerged as a viable preventive strategy.
Conclusions:
- Invasive Candida infections are a serious concern in vulnerable neonates.
- Antifungal therapy combined with catheter removal is crucial for treating bloodstream infections.
- Antifungal prophylaxis with fluconazole is effective in preventing invasive fungal infections in high-risk neonates.
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