Transocular Doppler and optic nerve sheath diameter monitoring to detect intracranial hypertension

Karami, Mehdi; Shirazinejad, Somayeh; Shaygannejad, Vahid; Shirazinejad, Zahra

doi:10.4103/2277-9175.167900

Cited by 10 publications

(2 citation statements)

References 35 publications

(55 reference statements)

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“…ONSD variations based on ethnicity and genetics introduce a potential confounding factor in establishing an optimal ONSD for defining IICP. Numerous studies report varying typical ONSD values across different populations [27][28][29][30][31][32][33]. In Western countries, the typical ONSD values are 2.4-4.7 mm in the United Kingdom [34], 4.3-7.6 mm in Germany [27,28], and 4.5-7.7 in Italy [29].…”

Section: The Association Between Onsd and Iicpmentioning

confidence: 99%

“…In Western countries, the typical ONSD values are 2.4-4.7 mm in the United Kingdom [34], 4.3-7.6 mm in Germany [27,28], and 4.5-7.7 in Italy [29]. In Asian populations, the typical ONSD values are 4.24-4.83 mm in Bangladesh [30], 2.65-4.30 in China [31], 2.6-4.1 mm in Iran [32], and 3.3-5.2 mm in the Republic of Korea [33].…”

Section: The Association Between Onsd and Iicpmentioning

confidence: 99%

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Prediction of Intracranial Pressure in Patients with an Aneurysmal Subarachnoid Hemorrhage Using Optic Nerve Sheath Diameter via Explainable Predictive Modeling

Kim,

Kang,

Koo

2024

JCM

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Background: The objective of this investigation was to formulate a model for predicting intracranial pressure (ICP) by utilizing optic nerve sheath diameter (ONSD) during endovascular treatment for an aneurysmal subarachnoid hemorrhage (aSAH), incorporating explainable predictive modeling. Methods: ONSD measurements were conducted using a handheld ultrasonography device during the course of endovascular treatment (n = 126, mean age 58.82 ± 14.86 years, and female ratio 67.46%). The optimal ONSD threshold associated with an increased ICP was determined. Additionally, the association between ONSD and ICP was validated through the application of a linear regression machine learning model. The correlation between ICP and various factors was explored through the modeling. Results: With an ICP threshold set at 20 cmH2O, 82 patients manifested an increased ICP, with a corresponding ONSD of 0.545 ± 0.08 cm. Similarly, with an ICP threshold set at 25 cmH2O, 44 patients demonstrated an increased ICP, with a cutoff ONSD of 0.553 cm. Conclusions: We revealed a robust correlation between ICP and ONSD. ONSD exhibited a significant association and demonstrated potential as a predictor of ICP in patients with an ICP ≥ 25 cmH2O. The findings suggest its potential as a valuable index in clinical practice, proposing a reference value of ONSD for increased ICP in the institution.

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Section: The Association Between Onsd and Iicpmentioning

confidence: 99%

Section: The Association Between Onsd and Iicpmentioning

confidence: 99%

Prediction of Intracranial Pressure in Patients with an Aneurysmal Subarachnoid Hemorrhage Using Optic Nerve Sheath Diameter via Explainable Predictive Modeling

Kim,

Kang,

Koo

2024

JCM

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Effect of changes in optic nerve elasticity on central retinal artery blood flow in patients with idiopathic intracranial hypertension

Elsaid¹,

Belal²,

Batouty³

et al. 2022

Journal of Neuroradiology

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Ultrasonographic measurement of the optic nerve sheath diameter and its association with eyeball transverse diameter in 585 healthy volunteers

Kim

Jun

Kim

2017

Sci Rep

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The optic nerve sheath diameter (ONSD) is considered as an indirect marker for intracranial pressure (ICP). However, the optimal cut-off value for an abnormal ONSD indicating elevated ICP and its associated factors have been unclear. Thus, we investigated normative values for the ONSD using ultrasonography and investigate the potential factors affecting it. We prospectively recruited healthy volunteers between September 2016 and March 2017. A total of 585 individuals were included, in which the mean ONSD was 4.11 mm [95% confidence interval (CI), 4.09–4.14 mm]. Although ONSD was correlated with sex (p = 0.015), height (p = 0.003), and eyeball transverse diameter (ETD) (p < 0.001) in simple linear regression analyses, multiple linear regression analysis revealed that only ETD was independently associated with ONSD (p < 0.001). Accordingly, we further established a normative value for the ONSD/ETD ratio and its associated factors. The mean ONSD/ETD ratio was 0.18 (95% CI, 0.18–0.18), but the ONSD/ETD ratio was not correlated with sex, height, weight, body mass index, and head circumference. Our findings suggest that the ONSD had a strong correlation with ETD, and ONSD/ETD ratio might provide more reliable data than ONSD itself as a marker of ICP.

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Transocular Doppler and optic nerve sheath diameter monitoring to detect intracranial hypertension

Cited by 10 publications

References 35 publications

Prediction of Intracranial Pressure in Patients with an Aneurysmal Subarachnoid Hemorrhage Using Optic Nerve Sheath Diameter via Explainable Predictive Modeling

Prediction of Intracranial Pressure in Patients with an Aneurysmal Subarachnoid Hemorrhage Using Optic Nerve Sheath Diameter via Explainable Predictive Modeling

Effect of changes in optic nerve elasticity on central retinal artery blood flow in patients with idiopathic intracranial hypertension

Ultrasonographic measurement of the optic nerve sheath diameter and its association with eyeball transverse diameter in 585 healthy volunteers

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