Dynamic optic nerve sheath diameter changes upon moderate hyperventilation in patients with traumatic brain injury

Klinzing, Stephanie; Hilty, Matthias P; Bechtel-Grosch, Ursina; Schuepbach, Reto Andreas; Bühler, Philipp; Brandi, Giovanna

doi:10.1016/j.jcrc.2020.01.008

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Klinzing, S., Hilty, M. P., Bechtel-Grosch, U., Schuepbach, R. A., Bühler, P., & Brandi, G. (2020). Dynamic optic nerve sheath diameter changes upon moderate hyperventilation in patients with traumatic brain injury. Journal of Critical Care, 56, 229–235. https://doi.org/10.1016/j.jcrc.2020.01.008

Abstract

Background: Sonographic assessment of optical nerve sheath diameter (ONSD) has the potential for non-invasive monitoring of intracranial pressure (ICP). Hyperventilation (HV) -induced hypocapnia is used in the management of patients with traumatic brain injury (TBI) to reduce ICP. This study investigates, whether sonography is a reliable tool to detect dynamic changes in ONSD. Methods: This prospective single center trial included patients with TBI and neuromonitoring within 36 h after injury. Data collection and ONSD measurements wer