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  • Title: Impact of Implementing the Cerebrospinal Fluid FilmArray Meningitis/Encephalitis Panel on Duration of Intravenous Acyclovir Treatment.
    Author: Clague M, Kim C, Zucker J, Green DA, Sun Y, Whittier S, Thakur KT.
    Journal: Open Forum Infect Dis; 2022 Aug; 9(8):ofac356. PubMed ID: 35937646.
    Abstract:
    BACKGROUND: Herpes simplex virus-1 is the most common cause of sporadic encephalitis worldwide and requires prompt antiviral treatment. Traditionally, herpes simplex virus-1 (HSV-1) cerebrospinal fluid (CSF) testing is conducted using standalone polymerase chain reaction (PCR). The BioFire CSF FilmArray Meningitis/Encephalitis Panel (BioFire ME Panel) was introduced in 2015 at our institution, providing an alternative method of HSV-1 CSF testing. This study assesses the impact of the BioFire ME Panel on duration of intravenous acyclovir treatment. METHODS: A retrospective review of electronic medical records between 2010 and 2019 was performed. Information on intravenous acyclovir treatment and HSV-1 CSF testing was collected and analyzed. Our descriptive analysis included Mann-Whitney tests, 2 proportion Z-tests, and logistic regression. RESULTS: Our CSF HSV-1-negative cohort included 524 BioFire patients (125 pediatric, 399 adult) and 287 standalone PCR patients (115 pediatric, 172 adult). Across both pediatric and adult groups, patients who were tested for HSV-1 with the BioFire ME Panel had shorter average (SD) durations of intravenous acyclovir treatment (pediatric: 2.00 [5.71] days; adult: 3.26 [6.59] days) compared with patients tested with standalone PCR (pediatric: 4.83 [8.62] days; adult: 4.93 [8.46] days; P < .001). Time from lumbar puncture collection to HSV-1 results was additionally faster on average for the BioFire ME Panel than the standalone PCR (P < .001). CONCLUSIONS: The implementation of the BioFire ME Panel shortened CSF HSV-1 PCR result time and intravenous acyclovir duration. The shortened treatment and testing times from the BioFire ME Panel implementation may reduce hospital treatment costs and unnecessary use of antiviral treatments.
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