• Wei-Ze Fan, Jun-Rong Jiang, Hui-Ling Zang, Xiao-Hui Shen, Hui Cheng, Wen-Juan Yang, Hui Wang, and Li-Xing Jing.
• Department of The Fifth Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, China.
• World Neurosurg. 2024 Sep 1; 189: 285290285-290.

AbstractElevated intracranial pressure (ICP) in patients with cerebral lesions has garnered considerable attention in research. It often manifests as a common symptom in conditions such as intracranial tumors, intracerebral hemorrhage, and cerebral edema. This paper provides an overview of ICP concepts, discusses the advantages and disadvantages of traditional monitoring methods, explores the physiological and anatomical aspects of the optic nerve sheath, examines the utility of ultrasound measurement of optic nerve sheath diameter (ONSD) in both nervous system and nonnervous system disorders, and outlines the cutoff values and normal ranges for assessing elevated ICP using ultrasound measurement of ONSD. The review underscores ultrasound measurement of ONSD as a promising noninvasive, safe, straightforward, and repeatable examination technique for various diseases. Nevertheless, the lack of standardized cutoff values for elevated ICP remains a challenge. Summarizing studies on optic nerve sheaths is crucial for enhancing the efficacy of ultrasound measurement of ONSD in assessing ICP.Copyright © 2024 Elsevier Inc. All rights reserved.

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