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Published on: July 1, 2020
Diagnostic challenges and recent advances in the early management of invasive fungal infections
1Division of Infectious Diseases, Department of Internal Medicine, Wayne State University School of Medicine, Karmanos Cancer Institute, Detroit, MI 48201, USA. pchandrasekar@med.wayne.edu
Abstract:
During the past 20 yr, the population of immunocompromized patients at risk of developing invasive fungal infections (IFIs) has increased, and there has been a shift in fungal epidemiology, with more infections caused by non-Aspergillus molds and yeasts, which are often resistant to one or more antifungal drugs. Traditional diagnostic methods, such as culture and the histopathology of infected tissue, often fail to detect IFIs until the later stages. Furthermore, invasive diagnostic methods to obtain tissue may be contraindicated in severely ill patients; even when tissue is available, the morphology of several filamentous fungi is identical, or the cultures may fail to grow the pathogen. Recently developed non-invasive diagnostic techniques, such as tests for serum markers and polymerase chain reaction assays, may allow for earlier and more accurate diagnoses - crucial in the effort to reduce morbidity and the risk of mortality. This article reviews current approaches to diagnosis and treatment, focusing on how an early and accurate diagnosis can guide treatment and improve outcomes. Strategies for improving the management of IFIs also are discussed.
Insights
Diagnosing invasive fungal infections (IFIs) early is crucial. New non-invasive methods offer faster, more accurate detection in immunocompromised patients, improving treatment outcomes and reducing mortality.
Area of Science:
- Mycology
- Infectious Diseases
- Clinical Diagnostics
Background:
- Increasing population of immunocompromised patients at risk for invasive fungal infections (IFIs).
- Shift in fungal epidemiology towards non-Aspergillus molds and yeasts, often with antifungal drug resistance.
- Limitations of traditional diagnostic methods (culture, histopathology) in early and accurate IFI detection.
Purpose of the Study:
- Review current diagnostic and treatment approaches for invasive fungal infections.
- Highlight the importance of early and accurate diagnosis in guiding treatment and improving patient outcomes.
- Discuss strategies for enhancing the management of IFIs.
Main Methods:
- Review of current literature on invasive fungal infections diagnosis and treatment.
- Focus on advancements in non-invasive diagnostic techniques.
- Analysis of how early diagnosis impacts treatment efficacy.
Main Results:
- Traditional methods often delay IFI diagnosis.
- Invasive diagnostic procedures can be contraindicated in critically ill patients.
- Emerging non-invasive techniques (serum markers, PCR assays) show promise for earlier and more accurate diagnosis.
Conclusions:
- Early and accurate diagnosis of IFIs is critical for reducing morbidity and mortality.
- Non-invasive diagnostic tools are essential for timely management of IFIs in at-risk populations.
- Improved diagnostic strategies can significantly enhance patient outcomes in IFIs.
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