Blood mucorales quantitative PCR ready for prime time

Area of Science:

• Mycology
• Clinical Microbiology
• Infectious Diseases

Background:

• Mucormycosis is a severe fungal infection with high mortality.
• Conventional diagnostic methods for mucormycosis can be slow and lack sensitivity.
• Quantitative PCR (qPCR) emerged as a promising diagnostic tool for Mucorales.

Purpose of the Study:

• To review the advancements and clinical utility of Mucorales quantitative PCR (qPCR) in managing mucormycosis.
• To highlight the impact of qPCR on early detection and patient outcomes.

Main Methods:

• Review of accumulated evidence on Mucorales qPCR since its development in 2013.
• Analysis of available in-house and commercial qPCR assays.
• Evaluation of preanalytical parameters influencing qPCR performance.
• Assessment of multiplex assays for differential diagnosis.
• Review of studies on serial qPCR monitoring and screening in high-risk populations.

Main Results:

• Multiple qPCR assays are available, targeting various Mucorales species.
• Preanalytical factors significantly impact assay performance.
• Multiplex assays aid in differentiating invasive mold infections.
• Serial qPCR monitoring correlates with prognosis, with DNA clearance linked to survival.
• Routine screening in high-risk patients improves outcomes by reducing diagnostic delays.

Conclusions:

• Mucorales qPCR is a rapid, noninvasive, and sensitive diagnostic method compared to conventional techniques.
• qPCR enables earlier detection of mucormycosis, leading to timely antifungal treatment.
• Studies demonstrate improved survival rates associated with qPCR-guided management.