Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study

Abstract The most common diagnostic error of IIH is inaccurate funduscopic examination. Moreover, IIH could be diagnosed without papilledema. Trans orbital sonography could be used as a non-invasive and cheap tool for discovering increased ICP (intracranial Pressure). Aim of our study was discoverin...

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Main Authors: Islam El Malky, Wael Elshazly Aita, Alaa Elkordy, Marwa Nasreldeen, Mahmoud Abdelhafiz, Amr M. Tael, Hazem Mo. Abdelkhalek
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-85033-4
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author Islam El Malky
Wael Elshazly Aita
Alaa Elkordy
Marwa Nasreldeen
Mahmoud Abdelhafiz
Amr M. Tael
Hazem Mo. Abdelkhalek
author_facet Islam El Malky
Wael Elshazly Aita
Alaa Elkordy
Marwa Nasreldeen
Mahmoud Abdelhafiz
Amr M. Tael
Hazem Mo. Abdelkhalek
author_sort Islam El Malky
collection DOAJ
description Abstract The most common diagnostic error of IIH is inaccurate funduscopic examination. Moreover, IIH could be diagnosed without papilledema. Trans orbital sonography could be used as a non-invasive and cheap tool for discovering increased ICP (intracranial Pressure). Aim of our study was discovering the changes in ultra-sonographic indices and which one could predict the increased ICP. Sixty-eight patients were diagnosed as definite IIH and 68 healthy volunteers are included in the study who had the same sex and age. ONSD, peak systolic velocity (PSV), end diastolic velocity (EDV), and resistance index (RI) were estimated by transorbital color Doppler. Multivariate linear regression was used to discover the predictors of increased ICP. ROC curve was plotted for the predictor. A statistically significant difference was found between IIH patients and controls regarding ONSD, EDV and RI. Multivariate linear regression revealed that ONSD is the only predictor of increased CSP pressure. Its cut-off value indicating high ICP was 5.7 mm on Rt and Lt eye (AUC: 0.916; 95% confidence interval 0.867–0.965; p < 0.001; 90% sensitivity, 80% specificity at Rt eye. AUC: 0.902; 95% confidence interval 0.845–0.958; p < 0.001; 91% sensitivity, 80% specificity at Lt eye).
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spelling doaj-art-018501e01c044b47bc251312c96c025a2025-01-19T12:23:16ZengNature PortfolioScientific Reports2045-23222025-01-011511710.1038/s41598-024-85033-4Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control studyIslam El Malky0Wael Elshazly Aita1Alaa Elkordy2Marwa Nasreldeen3Mahmoud Abdelhafiz4Amr M. Tael5Hazem Mo. Abdelkhalek6Department of Neurology, Director of Interventional Neurovascular Unit, South Valley UniversityMD Ophthalmology, Department of Ophthalmology, South Valley UniversityMD Neurology, Department of Neurology, Tanta UniversityMD Anesthesiology, Department of Anesthesiology, South Valley UniversityMD Neurology, Department of Neurology, South Valley UniversityMD Neurosurgery, Department of Neurosurgery, South Valley UniversityAssistant Professor of Neurology, Department of Neurology, Tanta UniversityAbstract The most common diagnostic error of IIH is inaccurate funduscopic examination. Moreover, IIH could be diagnosed without papilledema. Trans orbital sonography could be used as a non-invasive and cheap tool for discovering increased ICP (intracranial Pressure). Aim of our study was discovering the changes in ultra-sonographic indices and which one could predict the increased ICP. Sixty-eight patients were diagnosed as definite IIH and 68 healthy volunteers are included in the study who had the same sex and age. ONSD, peak systolic velocity (PSV), end diastolic velocity (EDV), and resistance index (RI) were estimated by transorbital color Doppler. Multivariate linear regression was used to discover the predictors of increased ICP. ROC curve was plotted for the predictor. A statistically significant difference was found between IIH patients and controls regarding ONSD, EDV and RI. Multivariate linear regression revealed that ONSD is the only predictor of increased CSP pressure. Its cut-off value indicating high ICP was 5.7 mm on Rt and Lt eye (AUC: 0.916; 95% confidence interval 0.867–0.965; p < 0.001; 90% sensitivity, 80% specificity at Rt eye. AUC: 0.902; 95% confidence interval 0.845–0.958; p < 0.001; 91% sensitivity, 80% specificity at Lt eye).https://doi.org/10.1038/s41598-024-85033-4IIHICPHeadacheONSDTransorbital ultrasonography
spellingShingle Islam El Malky
Wael Elshazly Aita
Alaa Elkordy
Marwa Nasreldeen
Mahmoud Abdelhafiz
Amr M. Tael
Hazem Mo. Abdelkhalek
Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study
Scientific Reports
IIH
ICP
Headache
ONSD
Transorbital ultrasonography
title Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study
title_full Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study
title_fullStr Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study
title_full_unstemmed Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study
title_short Optic nerve sonographic parameters in idiopathic intracranial hypertension, case-control study
title_sort optic nerve sonographic parameters in idiopathic intracranial hypertension case control study
topic IIH
ICP
Headache
ONSD
Transorbital ultrasonography
url https://doi.org/10.1038/s41598-024-85033-4
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