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Published on: July 1, 2020
Diagnosis of invasive fungal infections in immunocompromised children
H J Dornbusch1, A Groll, T J Walsh
1Division of Paediatric Haematology/Oncology, Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria. hansjuergen.dornbusch@medunigraz.at
Abstract:
Early recognition and rapid initiation of effective treatment is a prerequisite for successful management of children with invasive fungal infections. The increasing diversity of fungal pathogens in high-risk patients, the differences in the antifungal spectra of available agents and the increasing rates of resistance call for identification of the infecting isolate at the species level and for information on drug resistance, in order to provide state-of-the-art patient care. Microscopy and culture of appropriate specimens remain the reference standard for mycological diagnosis, despite difficulties in obtaining appropriate and/or sufficient specimens, long durations of culture and false-negative results. Modern imaging studies and detection of circulating fungal cell wall components and DNA in blood and other body fluids or in affected tissues may improve the laboratory diagnosis of invasive mycoses.
Insights
Prompt diagnosis and treatment are crucial for invasive fungal infections in children. Identifying the specific fungus and its drug resistance is vital for effective patient care, especially with rising resistance rates.
Area of Science:
- Mycology
- Infectious Diseases
- Pediatric Medicine
Background:
- Invasive fungal infections (IFIs) pose a significant threat to high-risk pediatric patients.
- Increasing fungal pathogen diversity and antifungal resistance complicate treatment decisions.
- Accurate and timely diagnosis is essential for effective management of IFIs.
Purpose of the Study:
- To highlight the importance of early recognition and prompt treatment of IFIs in children.
- To emphasize the need for species-level identification and drug resistance testing of fungal pathogens.
- To discuss advancements in laboratory diagnosis for invasive mycoses.
Main Methods:
- Review of current diagnostic standards for mycological diagnosis, including microscopy and culture.
- Discussion of limitations associated with traditional diagnostic methods (e.g., specimen collection, culture duration, false negatives).
- Exploration of advanced diagnostic techniques such as modern imaging and molecular detection (circulating fungal components and DNA).
Main Results:
- Microscopy and culture remain the gold standard but have significant limitations.
- Emerging diagnostic tools show promise in improving the detection of invasive mycoses.
- Accurate identification and resistance profiling are critical for guiding antifungal therapy.
Conclusions:
- Early and accurate diagnosis of invasive fungal infections in children is paramount for successful outcomes.
- Advanced diagnostic methods are needed to overcome the limitations of traditional techniques.
- Species-level identification and antifungal susceptibility testing are crucial for optimizing patient care and combating resistance.
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