• Crit Care · Mar 2023

    Cerebro-spinal fluid glucose and lactate concentrations changes in response to therapies in patIents with primary brain injury: the START-TRIP study.

    • Elisa Gouvêa Bogossian, Chahnez Taleb, Raffaele Aspide, Rafael Badenes, Denise Battaglini, Federico Bilotta, Aaron Blandino Ortiz, Anselmo Caricato, Carlo Alberto Castioni, Giuseppe Citerio, Gioconda Ferraro, Costanza Martino, Isabella Melchionda, Federica Montanaro, Berta Monleon Lopez, Consolato Gianluca Nato, Michael Piagnerelli, Edoardo Picetti, Chiara Robba, Olivier Simonet, Aurelie Thooft, and Fabio Silvio Taccone.
    • Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Route de Lennik, 808, 1070, Brussels, Belgium. elisagobog@gmail.com.
    • Crit Care. 2023 Mar 31; 27 (1): 130130.

    IntroductionAltered levels of cerebrospinal fluid (CSF) glucose and lactate concentrations are associated with poor outcomes in acute brain injury patients. However, no data on changes in such metabolites consequently to therapeutic interventions are available. The aim of the study was to assess CSF glucose-to-lactate ratio (CGLR) changes related to therapies aimed at reducing intracranial pressure (ICP).MethodsA multicentric prospective cohort study was conducted in 12 intensive care units (ICUs) from September 2017 to March 2022. Adult (> 18 years) patients admitted after an acute brain injury were included if an external ventricular drain (EVD) for intracranial pressure (ICP) monitoring was inserted within 24 h of admission. During the first 48-72 h from admission, CGLR was measured before and 2 h after any intervention aiming to reduce ICP ("intervention"). Patients with normal ICP were also sampled at the same time points and served as the "control" group.ResultsA total of 219 patients were included. In the intervention group (n = 115, 53%), ICP significantly decreased and CPP increased. After 2 h from the intervention, CGLR rose in both the intervention and control groups, although the magnitude was higher in the intervention than in the control group (20.2% vs 1.6%; p = 0.001). In a linear regression model adjusted for several confounders, therapies to manage ICP were independently associated with changes in CGLR. There was a weak inverse correlation between changes in ICP and CGRL in the intervention group.ConclusionsIn this study, CGLR significantly changed over time, regardless of the study group. However, these effects were more significant in those patients receiving interventions to reduce ICP.© 2023. The Author(s).

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