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2023-07-29

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cc-by (c) López, Néstor et al., 2023
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/220582

Multiplex real-time PCR FilmArray performance in the diagnosis of meningoencephalitis: lights and shadows

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https://doi.org/10.1007/s15010-023-02076-x

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Purpose: We aimed to evaluate the performance of the FilmArray (FA) meningitis/encephalitis (ME) panel. Secondarily, we analyzed the false positive (FP) and false negative (FN) results, as well as the predictive values of the technique, regarding the cerebrospinal fluid (CSF) characteristics. Methods: FA is a multiplex real-time PCR detecting 14 of the most common ME pathogens in CSF. All FA performed at our hospital (2018-2022) were retrospectively reviewed. FA was compared to conventional techniques and its performance was assessed based on the final diagnosis of the episode. Results: FA was performed in 313 patients with suspicion of ME. Most patients had altered mental status (65.2%) and fever (61%). Regarding CSF characteristics, 49.8% and 53.7% presented high CSF proteins and pleocytosis, respectively. There were 84 (26.8%) positive FA results, mainly for HSV-1 (10.9%), VZV (5.1%), Enterovirus (2.6%), and S. pneumoniae (1.9%). In the 136 cases where both FA and routine methods were performed, there was a 25.7% lack of agreement. We identified 6.6% FN results, but 28.6% FP, mainly due to HSV-1. This resulted in a high negative predictive value (NPV) of 93.4%, but a positive predictive value (PPV) of 73%. Remarkably, PPV as low as 36.9%, and 70.2%, were found in cases without pleocytosis, or lack of high CSF protein levels, respectively. Conclusion: FA was associated with high NPV, but frequent FP results and low PPV, particularly for HSV-1, and especially in patients without high CSF protein levels or pleocytosis.

Matèries

Diagnòstic, Infeccions, Encefalitis, Reacció en cadena de la polimerasa, Meningitis

Matèries (anglès)

Diagnosis, Infections, Encephalitis, Polymerase chain reaction, Meningitis

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Articles publicats en revistes (Fonaments Clínics)
Articles publicats en revistes (IDIBAPS: Institut d'investigacions Biomèdiques August Pi i Sunyer)

Citació

LÓPEZ, Néstor, CUESTA CHASCO, Genoveva, RODRÍGUEZ VEGA, Sara, ROSAS, Enric, CHUMBITA, Mariana, CASALS PASCUAL, Climent, MORATA, Laura, VERGARA, Andrea, BODRO, Marta, BOSCH, Jordi, HERRERA, Sabina, MARTÍNEZ, José antonio, MENSA PUEYO, Josep, GARCIA VIDAL, Carolina, MARCOS, Ma. angeles, VILA ESTAPÉ, Jordi, SORIANO VILADOMIU, Alex, PUERTA-ALCALDE, Pedro. Multiplex real-time PCR FilmArray performance in the diagnosis of meningoencephalitis: lights and shadows. _Infection_. 2023. Vol. 52, núm. 1, pàgs. 165-172. [consulta: 27 de gener de 2026]. ISSN: 0300-8126. [Disponible a: https://hdl.handle.net/2445/220582]

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