[Meningitis/Encephalitis diagnosis in ICU using Multiplex PCR system: Is it time of change?]

Area of Science:

• Neurology
• Infectious Diseases
• Clinical Microbiology

Background:

• Cerebral nervous system infections, such as meningitis and encephalitis, require rapid and accurate etiological diagnosis for effective treatment.
• Conventional microbiological techniques can be time-consuming, potentially delaying appropriate antimicrobial therapy.
• The Meningitis/Encephalitis FilmArray® panel offers a molecular approach for syndromic testing of these infections.

Purpose of the Study:

• To evaluate the clinical impact of the Meningitis/Encephalitis FilmArray® panel.
• To compare diagnostic results and time to diagnosis with conventional microbiological methods.
• To assess the panel's influence on empirical antimicrobial therapy.

Main Methods:

• A prospective observational study was conducted in an Intensive Care Unit.
• Cerebrospinal fluid samples were analyzed using the Meningitis/Encephalitis FilmArray® panel, cytochemical studies, Gram stain, and conventional cultures.
• The study included adult patients with suspected meningitis or encephalitis.

Main Results:

• The Meningitis/Encephalitis FilmArray® panel achieved 100% sensitivity and 90% specificity.
• Diagnostic results were obtained in a median of 2.9 hours, significantly faster than conventional cultures (45.1 hours).
• The panel identified the etiology in 12 of 16 diagnosed cases (75%) and guided antimicrobial therapy changes in 43.8% of patients.

Conclusions:

• The Meningitis/Encephalitis FilmArray® panel provides a faster etiological diagnosis for CNS infections compared to conventional methods.
• The panel demonstrates high sensitivity and specificity, improving diagnostic accuracy.
• Rapid diagnosis facilitates prompt and targeted antimicrobial therapy, potentially improving patient outcomes.