• World Neurosurg · Mar 2024

    Impact of subarachnoid hemorrhage in ventriculostomy-related infections Prospective Comparison of two neurosurgical injury contexts.

    • Ariane Roujansky, Sylvain Diop, Jean Pasqueron, Paul-Louis Woerther, Victor Desauge, Hatem Kallel, and Roman Mounier.
    • Réanimation polyvalente, Centre Hospitalier de Cayenne, Cayenne, Guyane Française, France; Tropical Biome et immunopathologie CNRS UMR-9017, Inserm U 1019, Université de Guyane, Cayenne, Guyane Française, France. Electronic address: ariane.roujansky@gmail.com.
    • World Neurosurg. 2024 Mar 1; 183: e136e144e136-e144.

    BackgroundLong thought to be immune privileged, the central nervous system is far from being devoid of local immunity. Subarachnoid hemorrhage (SAH) and traumatic brain injury represent 2 distinct central nervous system injury situations which, while both exposed to external ventricular drains, present different incidences of ventriculostomy-related infection (VRI). We sought to compare VRI incidence and initial cerebrospinal fluid (CSF) inflammatory profiles in these 2 clinical situations.MethodsFrom 2015 to 2020, 227 patients treated for SAH (193) or traumatic brain injury (34) with an external ventricular drain were prospectively included. CSF samples were sent daily for microbiological examination, cell count, and biochemical analysis. VRI was defined as a positive CSF culture associated with CSF profile modifications and clinical signs. Ventriculostomy-related colonization was defined as positive catheter culture at removal. Positive events were defined as VRI and/or ventriculostomy-related colonization.ResultsEleven patients suffered from VRI, with an incidence of 3.6 VRI per 1000 catheter-days. All VRIs occurred among SAH patients without a significant difference. Median duration of drainage was 12 (7-18) days, there were no significant differences for known VRI risk factors. Positive events were significantly higher in SAH patients (20.7% vs. 2.9%, P = 0.013). Inflammatory CSF markers and serum white blood cells were higher in SAH patients.ConclusionsLocal inflammatory markers were markedly higher in SAH than in traumatic brain injury. However, positive events were more frequent in SAH. Furthermore, SAH may be a risk factor for VRI. Hypothesis that a primary injury to the subarachnoid space could impair central nervous system immune functions should be explored.Copyright © 2023 Elsevier Inc. All rights reserved.

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