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Blood Aspergillus PCR: The Good, the Bad, and the Ugly
Matthias Egger1, Jeffrey D Jenks2,3, Martin Hoenigl1,2,3
1Section of Infectious Diseases and Tropical Medicine, Medical University of Graz, 8036 Graz, Austria.
Abstract:
Invasive Aspergillosis (IA) is one of the most common invasive fungal diseases and is accompanied by high morbidity and mortality. In order to maximize patient outcomes and survival, early and rapid diagnosis has been shown to be pivotal. Hence, diagnostic tools aiding and improving the diagnostic process are ambitiously searched for. In this context, polymerase chain reaction (PCR) may represent a potential candidate. Its additional value and benefits in diagnosis have been demonstrated and are scientifically established. Nevertheless, standardized and widespread usage is sparse because several factors influence diagnostic quality and need to be considered in order to optimize diagnostic performance and outcome. In the following review, the current role of PCR in the diagnosis of IA is explored, with special focus on the strengths and limitations of PCR in different settings.
Insights
Polymerase chain reaction (PCR) shows promise for diagnosing invasive aspergillosis (IA). Standardizing PCR use is crucial for improving patient outcomes in this serious fungal infection.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Molecular Diagnostics
Background:
- Invasive aspergillosis (IA) is a severe fungal infection with high mortality.
- Early and rapid diagnosis is critical for improving patient survival and outcomes.
- Current diagnostic methods for IA have limitations, driving the search for improved tools.
Purpose of the Study:
- To explore the current role of polymerase chain reaction (PCR) in diagnosing invasive aspergillosis.
- To highlight the strengths and limitations of PCR for IA diagnosis in various clinical settings.
- To assess the potential of PCR as a valuable diagnostic tool for IA.
Main Methods:
- Review of current scientific literature on PCR applications in invasive aspergillosis diagnosis.
- Analysis of factors influencing diagnostic quality and performance of PCR assays.
- Evaluation of PCR's benefits and drawbacks in different clinical scenarios.
Main Results:
- Polymerase chain reaction (PCR) has demonstrated significant value and benefits in the diagnosis of IA.
- Despite established scientific evidence, widespread and standardized use of PCR for IA diagnosis remains limited.
- Several factors critically influence the diagnostic quality and performance of PCR, necessitating careful consideration for optimization.
Conclusions:
- PCR represents a potential candidate for improving the early and rapid diagnosis of invasive aspergillosis.
- Standardization and optimization of PCR protocols are essential for widespread clinical adoption and improved patient outcomes.
- Further research and consensus are needed to overcome barriers to the routine use of PCR in IA diagnostics.
