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Reynolds GL, Plant G, Epps S, Sebastian R, Bennetto L. Glaucoma: what the neurologist needs to know. Pract Neurol 2024:pn-2023-003905. [PMID: 38906698 DOI: 10.1136/pn-2023-003905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2024] [Indexed: 06/23/2024]
Abstract
Glaucoma is a progressive optic neuropathy resulting from pathological changes at the optic disc due to elevated intraocular pressure. Its diagnosis, treatment and follow-up are almost entirely conducted in ophthalmology clinics, with screening conducted by community optometrists. Despite this, neurologists may encounter glaucoma in both its acute presentation (as angle closure, presenting as acute headache) and its chronic forms (often as optic neuropathy of unknown cause). An awareness of the underlying pathological process, and the key distinguishing signs and symptoms, will allow neurologists to identify the glaucomatous process rapidly. Timely referral is essential as glaucoma invariably results in progressive visual loss without treatment. This review therefore condenses the wide field of glaucoma into a practical summary, aimed at practitioners with limited clinical experience of this ophthalmic condition.
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Affiliation(s)
- Gavin L Reynolds
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol Eye Hospital, Bristol, UK
| | - Gordon Plant
- National Hospital for Neurology and Neurosurgery, London, UK
| | - Simon Epps
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol Eye Hospital, Bristol, UK
| | - Rani Sebastian
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol Eye Hospital, Bristol, UK
| | - Luke Bennetto
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol Eye Hospital, Bristol, UK
- Department of Neuroscience, North Bristol NHS Trust Southmead Hospital, Bristol, UK
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2
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Feucht D, Kerscher SR, Ruff C, Schuhmann MU, Roder C, Zipfel J. Retrospective longitudinal assessment of optic nerve sheath diameter in patients with malignant glioma. Cancer Med 2023; 12:22047-22055. [PMID: 38063340 PMCID: PMC10757086 DOI: 10.1002/cam4.6789] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 09/25/2023] [Accepted: 11/23/2023] [Indexed: 12/31/2023] Open
Abstract
INTRODUCTION Glioblastoma (GBM) is a tumor with rapid growth and a possible relationship to elevated intracranial pressure (ICP). High ICP may not always be associated with clinical signs. A non-invasive technique for assessment of ICP is measuring the optic nerve sheath diameter (ONSD). Identifying patients who need immediate intervention is of importance in neuro-oncological care. The goal of this study is to assess the available magnetic resonance imaging (MRI) of patients with GBM with respect to pre- and postoperative ONSD. METHODS AND MATERIALS Retrospective data analysis was performed on all patients operated for GBM at a tertiary care center between 2010 and 2020. Two pre and one postoperative MRI had to be available. Clinical data and ONSD at multiple time points were analyzed and correlated, as well as preoperative volumetrics. RESULTS Sixty-seven patients met the inclusion criteria. Clinical signs of elevated ICP were seen in 25.4% (n = 17), while significant perifocal edema was present in 67.2% (n = 45) of patients. Clinical signs of preoperatively elevated ICP were associated with significantly elevated ONSD at diagnosis (p < 0.001) as well as preoperative tumor volume (p < 0.001). Significant perifocal edema at the time of diagnosis was associated with elevated ONSD (p = 0.029) and higher tumor volume (p = 0.003). In patients with significant edema, ONSD increased significantly between preoperative MRIs (p = 0.003/005). In patients with clinical signs of raised ICP, ONSD also increased, whereas it was stable in asymptomatic patients (yes: 5.01+/-4.17 to 5.83+/-0.55 mm, p = 0.010, no: 5.17+/-0.46 mm to 5.38+/-0.41 mm, p = 0.81). A significant increase of ONSD from diagnosis to preoperative MRI and a significant decrease until 3 months postoperatively were observed (p < 0.001). CONCLUSIONS ONSD might help identify high ICP in patients with GBM. In this first-of-its kind study, we observed a significant increase of ONSD preoperatively, likely associated with edema. Postoperatively, ONSD decreased significantly until 3 months after surgery and increased again at 12 months. Further prospective data collection is warranted.
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Affiliation(s)
- Daniel Feucht
- Department of NeurosurgeryUniversity Hospital of TuebingenTubingenGermany
| | - Susanne R. Kerscher
- Department of Diagnostic and Interventional RadiologyUniversity Hospital of UlmUlmGermany
| | - Christer Ruff
- Department of Diagnostic and Interventional NeuroradiologyUniversity Hospital of TuebingenTubingenGermany
| | | | - Constantin Roder
- Department of NeurosurgeryUniversity Hospital of TuebingenTubingenGermany
| | - Julian Zipfel
- Department of NeurosurgeryUniversity Hospital of TuebingenTubingenGermany
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Ustick JJ, Pardon LP, Chettry P, Patel NB, Cheng H. Effects of head-down tilt on optic nerve sheath diameter in healthy subjects. Ophthalmic Physiol Opt 2023; 43:1531-1539. [PMID: 37401194 PMCID: PMC10592427 DOI: 10.1111/opo.13200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
PURPOSE Intracranial pressure increases in head-down tilt (HDT) body posture. This study evaluated the effect of HDT on the optic nerve sheath diameter (ONSD) in normal subjects. METHODS Twenty six healthy adults (age 28 [4.7] years) participated in seated and 6° HDT visits. For each visit, subjects presented at 11:00 h for baseline seated scans and then maintained a seated or 6° HDT posture from 12:00 to 15:00 h. Three horizontal axial and three vertical axial scans were obtained at 11:00, 12:00 and 15:00 h with a 10 MHz ultrasonography probe on the same eye, randomly chosen per subject. At each time point, horizontal and vertical ONSD (mm) were quantified by averaging three measures taken 3 mm behind the globe. RESULTS In the seated visit, ONSDs were similar across time (p > 0.05), with an overall mean (standard deviation) of 4.71 (0.48) horizontally and 5.08 (0.44) vertically. ONSD was larger vertically than horizontally at each time point (p < 0.001). In the HDT visit, ONSD was significantly enlarged from baseline at 12:00 and 15:00 h (p < 0.001 horizontal and p < 0.05 vertical). Mean (standard error) horizontal ONSD change from baseline was 0.37 (0.07) HDT versus 0.10 (0.05) seated at 12:00 h (p = 0.002) and 0.41 (0.09) HDT versus 0.12 (0.06) seated at 15:00 h (p = 0.002); mean vertical ONSD change was 0.14 (0.07) HDT versus -0.07 (0.04) seated at 12:00 h (p = 0.02) and 0.19 (0.06) HDT versus -0.03 (0.04) seated at 15:00 h (p = 0.01). ONSD change in HDT was similar between 12:00 and 15:00 h (p ≥ 0.30). Changes at 12:00 h correlated with those at 15:00 h for horizontal (r = 0.78, p < 0.001) and vertical ONSD (r = 0.73, p < 0.001). CONCLUSION The ONSD increased when body posture transitioned from seated to HDT position without any further change at the end of the 3 h in HDT.
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Affiliation(s)
| | - Laura P. Pardon
- University of Houston, College of Optometry, Houston, Texas, USA
| | - Pratik Chettry
- University of Houston, College of Optometry, Houston, Texas, USA
| | - Nimesh B. Patel
- University of Houston, College of Optometry, Houston, Texas, USA
| | - Han Cheng
- University of Houston, College of Optometry, Houston, Texas, USA
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Abstract
PURPOSE OF REVIEW Idiopathic intracranial hypertension (IIH) is a disorder of raised intracranial pressure (ICP). Although the majority of patients with IIH present classically with headache and papilledema, some patients may have unusual presentations or manifestations. Recent advancements in neuroimaging have facilitated the identification of other presentations associated with IIH. This review provides an overview of the expanding clinical spectrum of IIH. RECENT FINDINGS Presentations of IIH that are considered unusual include highly asymmetric or unilateral papilledema, IIH without papilledema, and IIH associated with cranial nerve involvement. These presentations likely reflect differences in the way cerebrospinal fluid (CSF) pressure is transmitted intracranially. Radiological signs of intracranial hypertension are increasingly recognized in patients with IIH and provide further insights into the effects of raised ICP on intracranial structures. Osseous changes in the skull base leading to formation of meningoceles and encephaloceles have been identified in patients with IIH, spontaneous skull base CSF leak, and drug-resistant temporal lobe epilepsy, suggesting a possible association. SUMMARY Clinicians should be familiar with the expanding clinical spectrum of IIH and the implications for the management of these presentations.
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Affiliation(s)
- Benson S. Chen
- John van Geest Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge
- Cambridge Eye Unit, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge, United Kingdom
| | - John O.T. Britton
- John van Geest Centre for Brain Repair and MRC Mitochondrial Biology Unit, Department of Clinical Neurosciences, University of Cambridge
- Cambridge Eye Unit, Addenbrooke's Hospital, Cambridge University Hospitals, Cambridge, United Kingdom
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Foska A, Palaiodimou L, Stefanou MI, Alonistiotis D, Bakola E, Papagiannopoulou G, Arvaniti C, Bonakis A, Lachanis S, Tsivgoulis G. Telltale Signs of Idiopathic Intracranial Hypertension With Normal Opening Cerebrospinal Fluid Pressure. Neurohospitalist 2023; 13:103-106. [PMID: 36531847 PMCID: PMC9755610 DOI: 10.1177/19418744221131918] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023] Open
Abstract
Introduction Idiopathic Intracranial Hypertension (IIH) with normal opening cerebrospinal fluid (CSF) pressure comprises a rare IIH variant. Case Report We report the case of a non-obese Caucasian woman, who presented with asymmetrical papilledema, typical IIH-findings on optic nerve sonography and brain magnetic resonance imaging (MRI), and was diagnosed with IIH despite normal opening CSF pressure. Following treatment with acetazolamide, a complete remission of her symptoms was achieved, accompanied by significant improvement of the fundoscopy findings. Conclusion Although normal opening CSF pressure in IIH patients is rare, clinicians should be aware of this IIH variant and promptly indicate IIH treatment in patients presenting with typical clinical symptoms and neuroimaging findings suggestive of IIH.
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Affiliation(s)
- Aikaterini Foska
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Lina Palaiodimou
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Maria Ioanna Stefanou
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Dimitrios Alonistiotis
- Second Department of Ophthalmology, University of Athens Medical School, “Attikon” University General Hospital, Athens, Greece
| | - Eleni Bakola
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Georgia Papagiannopoulou
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Chrysa Arvaniti
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Anastasios Bonakis
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Stefanos Lachanis
- Department of Radiolody, Iatropolis Magnetic Resonance Diagnostic Centre, Athens, Greece
| | - Georgios Tsivgoulis
- Second Department of Neurology, National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
- Department of Neurology, The University of Tennessee Health Science Center, Memphis, TN, USA
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The Effect of Optic Nerve Sheath Fenestration on Intraocular Pressure in Patients With Idiopathic Intracranial Hypertension. J Neuroophthalmol 2022; 42:97-100. [DOI: 10.1097/wno.0000000000001235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Albano de Guimarães J, Teixeira GC, Silva TKLD, Moura FC. Optic Disc Edema and Posterior Globe Flattening Secondary to Ocular Hypotony: Case Report and Discussion Regarding Pathophysiology and Clinical Findings. J Neuroophthalmol 2021; 41:e220-e222. [PMID: 33105416 DOI: 10.1097/wno.0000000000001095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT We describe a case of a young female patient presenting with ocular hypotension (4 mm Hg) secondary to cyclodialysis, and optic disc edema (ODE) after a blunt trauma in the right eye (right eye). MRI showed posterior globe flattening of the right eye, drawing our attention to the pathophysiology behind these findings. The combination of ODE and posterior globe flattening, as observed in the present case of ocular hypotony, is known from other conditions such as intracranial hypertension and space-flight neuro-ocular syndrome, pointing to a common pathophysiological mechanism, possibly resulting from axoplasmic stasis at the level of the lamina cribrosa due to a high translaminar pressure difference.
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Affiliation(s)
- Juliana Albano de Guimarães
- Department of Ophthalmology and Otorhinolaryngology of the State University of Campinas (JAG, GCT, TKLS), Campinas, São Paulo, Brazil ; and Department of Ophthalmology and Otorhinolaryngology of State University of Campinas (FCM), Campinas, São Paulo, Brazil and University of São Paulo (FCM), São Paulo, São Paulo, Brazil
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Chen BS, Newman NJ, Biousse V. Atypical presentations of idiopathic intracranial hypertension. Taiwan J Ophthalmol 2021; 11:25-38. [PMID: 33767953 PMCID: PMC7971435 DOI: 10.4103/tjo.tjo_69_20] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 09/11/2020] [Indexed: 11/05/2022] Open
Abstract
Idiopathic intracranial hypertension (IIH) is a disorder of unknown etiology that results in isolated raised intracranial pressure. Classic symptoms and signs of IIH include headache, papilledema, diplopia from sixth nerve palsy and divergence insufficiency, and pulsatile tinnitus. Atypical presentations include: (1) highly asymmetric or even unilateral papilledema, and IIH without papilledema; (2) ocular motor disturbances from third nerve palsy, fourth nerve palsy, internuclear ophthalmoplegia, diffuse ophthalmoplegia, and skew deviation; (3) olfactory dysfunction; (4) trigeminal nerve dysfunction; (5) facial nerve dysfunction; (6) hearing loss and vestibular dysfunction; (7) lower cranial nerve dysfunction including deviated uvula, torticollis, and tongue weakness; (8) spontaneous skull base cerebrospinal fluid leak; and (9) seizures. Although atypical findings should raise a red flag and prompt further investigation for an alternative etiology, clinicians should be familiar with these unusual presentations.
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Affiliation(s)
- Benson S. Chen
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neurology, Auckland City Hospital, Auckland, New Zealand
| | - Nancy J. Newman
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neurological Surgery, Emory University School of Medicine, Atlanta, GA, United States
| | - Valérie Biousse
- Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, United States
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Asal N, İnal M, Şahan MH, Say B. Assessment of the optic nerve using strain and shear-wave elastography in patients with pseudotumour cerebri. Clin Radiol 2020; 75:629-635. [PMID: 32381345 DOI: 10.1016/j.crad.2020.03.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 03/31/2020] [Indexed: 12/18/2022]
Abstract
AIM To evaluate the optic nerve using strain elastography (SE) and shear-wave elastography (SWE) in idiopathic intracranial hypertension (IIH) patients in comparison to participants in the control group. MATERIALS AND METHODS Eighty eyes were evaluated in 40 cases consisting of 20 IIH patients and 20 participants in the control group. This study was conducted using SE and SWE in addition optic nerve sonography measurements of participants in the IIH patient group and the control group. SE patterns were categorised using three main types and two subtypes. Quantitative measurements of optic nerve stiffness with SWE were expressed in kilopascals. RESULTS In the IIH patient group, type 2 and type 1 elasticity patterns were primarily observed, followed by type 3 patterns. In the control group, type 3 elasticity patterns were most often observed, while type 2 elasticity patterns were seen less frequently. Statistically significance differences in the types of elasticity strain patterns were observed between the groups (p<0.01). Quantitative analysis was also performed, and the SWE moduli were obtained for the control group (10.1±0.28 kPa) and the IIH patient group (26.97±1 kPa). A statistically significant difference in the SWE modulus was found between the groups (p<0.01). CONCLUSION Biomechanical changes may have occurred in the optic nerve secondary to increased intracranial pressure in IIH patients. Strain and shear elastography may have potential as assistive diagnostic techniques for the detection and follow-up of these changes.
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Affiliation(s)
- N Asal
- Department of Radiology, Kirikkale University School of Medicine, Kirikkale, Turkey.
| | - M İnal
- Department of Radiology, Kirikkale University School of Medicine, Kirikkale, Turkey
| | - M H Şahan
- Department of Radiology, Gaziantep University School of Medicine, Gaziantep, Turkey
| | - B Say
- Department of Neurology, Kirikkale University School of Medicine, Kirikkale, Turkey
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Monga S. Unilateral high myopia leading to asymmetric disc edema in idiopathic intracranial hypertension. Indian J Ophthalmol 2020; 68:1475-1477. [PMID: 32587204 PMCID: PMC7574099 DOI: 10.4103/ijo.ijo_1799_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Asymmetrical disc edema in idiopathic intracranial hypertension (IIH) is an uncommon finding, with an unclear understanding. This report reinforces the importance of recognizing this entity in IIH diagnosis, and not misdiagnose the condition as unilateral disc edema. In this unique report, the causative association of asymmetric optic disc edema, with optic nerve kink, due to unilateral high myopia, is documented.
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Kerscher SR, Schöni D, Neunhoeffer F, Wolff M, Haas-Lude K, Bevot A, Schuhmann MU. The relation of optic nerve sheath diameter (ONSD) and intracranial pressure (ICP) in pediatric neurosurgery practice - Part II: Influence of wakefulness, method of ICP measurement, intra-individual ONSD-ICP correlation and changes after therapy. Childs Nerv Syst 2020; 36:107-115. [PMID: 31392457 DOI: 10.1007/s00381-019-04336-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 07/30/2019] [Indexed: 12/30/2022]
Abstract
PURPOSE Previous studies correlating ultrasound (US)-based optic nerve sheath diameter (ONSD) and intracranial pressure (ICP) in children were performed under general anesthesia. To apply ONSD in daily clinical routine, it is necessary to investigate patients awake. It is furthermore essential for ICP-assessment with ONSD to know if ONSD-ICP correlation varies within individuals. In this study, we report on the influence of wakefulness, method of ICP measurement, intraindividual correlations, and dynamic changes of ONSD and ICP after ICP decreasing therapy. METHODS The overall study included 72 children with a median age of 5.2 years. US ONSD determination was performed immediately prior to invasive ICP measurement, and the mean binocular ONSD was compared to ICP. In 10 children, a minimum of 3 ONSD/ICP measurements were performed to investigate a correlation within subjects. In 30 children, measurements were performed before and after therapy. RESULTS Twenty-eight children were investigated awake with an excellent correlation of ONSD and ICP (r = 0.802, p < 0.01). In 10 children, at least three simultaneous ONSD and ICP measurements were performed. The intraindividual correlations were excellent (r = 0.795-1.0) however with strongly differing individual regression curves. The overall correlation within subjects was strong (r = 0.78, p < 0.01). After ICP decreasing therapy, all ONSD values decreased significantly (p < 0.01); however, there was no correlation between ∆ICP and ∆ONSD. CONCLUSION Awake investigation does not impair the correlation between ONSD and ICP. Even if there is a good overall ONSD-ICP correlation, every individual has its own distinctive and precise correlation line. The relationship between ONSD and ICP is furthermore not uniform between individuals. Strong ICP decreases can lead to smaller ONSD changes and vice versa. This should be kept in mind when using this technique in the clinical daily routine.
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Affiliation(s)
- Susanne R Kerscher
- Department of Neurosurgery, Pediatric Neurosurgery, University Hospital of Tuebingen, Hoppe-Seyler-Str.3, 72076, Tuebingen, Germany.
- Department of Neurosurgery, University Hospital of Tuebingen, Tuebingen, Germany.
| | - Daniel Schöni
- Department of Neurosurgery, University Hospital of Tuebingen, Tuebingen, Germany
- Department of Neurosurgery, University Hospital of Bern, Bern, Switzerland
| | - Felix Neunhoeffer
- Pediatric Intensive Care Unit, Childrens' Hospital, University Hospital of Tuebingen, Tuebingen, Germany
| | - Markus Wolff
- Department of Pediatric Neurology and Developmental Medicine, Childrens' Hospital, University Hospital of Tuebingen, Tuebingen, Germany
| | - Karin Haas-Lude
- Department of Pediatric Neurology and Developmental Medicine, Childrens' Hospital, University Hospital of Tuebingen, Tuebingen, Germany
| | - Andrea Bevot
- Department of Pediatric Neurology and Developmental Medicine, Childrens' Hospital, University Hospital of Tuebingen, Tuebingen, Germany
| | - Martin U Schuhmann
- Department of Neurosurgery, Pediatric Neurosurgery, University Hospital of Tuebingen, Hoppe-Seyler-Str.3, 72076, Tuebingen, Germany
- Department of Neurosurgery, University Hospital of Tuebingen, Tuebingen, Germany
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12
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Kerscher SR, Schöni D, Hurth H, Neunhoeffer F, Haas-Lude K, Wolff M, Schuhmann MU. The relation of optic nerve sheath diameter (ONSD) and intracranial pressure (ICP) in pediatric neurosurgery practice - Part I: Correlations, age-dependency and cut-off values. Childs Nerv Syst 2020; 36:99-106. [PMID: 31256241 DOI: 10.1007/s00381-019-04266-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/17/2019] [Indexed: 12/18/2022]
Abstract
PURPOSE It is assumed that the width of the optic nerve sheath diameter (ONSD) is dependent on intracranial pressure (ICP) and pulsatility and thus constitutes a non-invasively accessible "window" for qualitative assessment of ICP. Data on the correlation to invasively measured ICP in children are scarce and have often been obtained from sedated patients in intensive care unit (ICU) or intraoperatively. We report on a mixed cohort of pediatric neurosurgical patients, ICP and ONSD measurements were available from both sedated and awake children, only a minority from ICU patients. METHODS Seventy-two children were investigated. Ultrasound ONSD determination was performed immediately prior to invasive ICP measurement and the mean binocular ONSD was compared with ICP. The investigations were performed in children awake, sedated, or under general anesthesia. RESULTS In the entire patient cohort, the correlation between ONSD and ICP was good (r = 0.52, p < 0.01). Children > 1 year revealed a better correlation (r = 0.63; p < 0.01) and those ≤ 1 year did worse (r = 0.21). Infants with open fontanelle had no correlation. In the entire cohort, the best ONSD cut-off value for detecting ICP ≥ 15 and ≥ 20 mmHg was 5.28 and 5.57 mm (OR 22.5 and 7.2, AUC 0.782 and 0.733). CONCLUSION Transorbital ultrasound measurement of ONSD is a reliable non-invasive technique to assess increased ICP in children in every clinical situation; however, the impact of age and fontanelle status needs to be considered. ONSD thresholds enable qualitative first orientation regarding ICP categories with a very satisfying diagnostic accuracy.
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Affiliation(s)
- Susanne R Kerscher
- Division of Pediatric Neurosurgery, Department of Neurosurgery, University Hospital of Tuebingen, Hoppe-Seyler-Str.3, 72076, Tübingen, Germany.
- Department of Neurosurgery, University Hospital of Tuebingen, 72076, Tuebingen, Germany.
| | - Daniel Schöni
- Department of Neurosurgery, University Hospital of Tuebingen, 72076, Tuebingen, Germany
- Department of Neurosurgery, University Hospital of Bern, 3010, Bern, Switzerland
| | - Helene Hurth
- Department of Neurosurgery, University Hospital of Tuebingen, 72076, Tuebingen, Germany
| | - Felix Neunhoeffer
- Pediatric Intensive Care Unit, Children's Hospital, University of Tuebingen, 72076, Tuebingen, Germany
| | - Karin Haas-Lude
- Department of Pediatric Neurology and Developmental Medicine, Children's Hospital, University of Tuebingen, 72076, Tuebingen, Germany
| | - Markus Wolff
- Department of Pediatric Neurology and Developmental Medicine, Children's Hospital, University of Tuebingen, 72076, Tuebingen, Germany
| | - Martin U Schuhmann
- Division of Pediatric Neurosurgery, Department of Neurosurgery, University Hospital of Tuebingen, Hoppe-Seyler-Str.3, 72076, Tübingen, Germany
- Department of Neurosurgery, University Hospital of Tuebingen, 72076, Tuebingen, Germany
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13
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The Translaminar Pressure Gradient: Papilledema After Trabeculectomy Treated With Optic Nerve Sheath Fenestration. J Glaucoma 2019; 27:e154-e157. [PMID: 29979338 DOI: 10.1097/ijg.0000000000001021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Trans-lamina cribrosa pressure has been postulated to be a contributor in the development of a glaucomatous optic nerve versus optic nerve edema, depending on the pressure gradient. Uncertainty remains in the therapeutic outcome of adjusting this gradient. CASE REPORT We discuss a unique case of idiopathic intracranial hypertension presenting as asymmetric optic disc edema following trabeculectomy. It was treated via optic nerve fenestration due to the patient remaining symptomatic on maximum tolerated acetazolamide. Intraocular pressure stabilized into target range and the optic nerve edema resolved. CONCLUSIONS Rarely, intraocular pressure reduction can unmask elevated intracranial pressure, leading to optic nerve edema. Optic nerve sheath fenestration is a practical therapeutic modality to consider when treating this occurrence.
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Umfress AC, Mawn LA, Joos KM. Short-term Optic Disc Cupping Reversal in a Patient With Mild Juvenile Open-angle Glaucoma Due to Early Idiopathic Intracranial Hypertension. J Glaucoma 2018; 28:e53-e57. [PMID: 30531192 DOI: 10.1097/ijg.0000000000001151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The purpose of this study was to report a case of optic disc cupping reversal in an adult without significant intraocular pressure-lowering treatment. PATIENT A 20-year-old female with a history of mild juvenile open-angle glaucoma who developed subjective blurred vision and a decrease in cupping of her optic discs. RESULTS Dilated examination demonstrated decreased cup-to-disc ratios in both eyes with a slight blurring of the disc margin in the right eye. The appearance of both optic discs returned to baseline after weight loss therapy. CONCLUSIONS An unexplained reduction of optic nerve cup-to-disc ratio should prompt a workup for other etiologies, such as increased intracranial pressure. Baseline photographs not subjected to computerized scan obsolescence are extremely useful in monitoring the long-term appearance of asymmetric optic discs as an adjunct to the clinical examination.
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Affiliation(s)
- Allison C Umfress
- Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, TN
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Gurney SP, Makanjuola T, Kutubi M, Parulekar M, Abbott J. How to use…the direct ophthalmoscope. Arch Dis Child Educ Pract Ed 2018; 103:102-109. [PMID: 28935833 DOI: 10.1136/archdischild-2016-312378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/15/2017] [Indexed: 01/16/2023]
Abstract
Ophthalmoscopy and red reflex examination are core medical skills required to identify sight-threatening and life-threatening disease. We discuss the predictive utility and limitations of findings with an ophthalmoscope and tips as to how to optimise these. We outline important considerations in three clinical scenarios: an abnormal red reflex, an abnormal optic disc and retinal haemorrhages in the context of child protection concerns.
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Affiliation(s)
- Sam P Gurney
- Department of Paediatric Ophthalmology, Birmingham Children's Hospital, Birmingham, UK
| | - Taiwo Makanjuola
- Department of Paediatric Ophthalmology, Birmingham Children's Hospital, Birmingham, UK
| | - Muhammad Kutubi
- Department of Paediatric Ophthalmology, Birmingham Children's Hospital, Birmingham, UK
| | - Manoj Parulekar
- Department of Paediatric Ophthalmology, Birmingham Children's Hospital, Birmingham, UK.,Department of Ophthalmology, John Radcliffe Hospital, Oxford, UK
| | - Joseph Abbott
- Department of Paediatric Ophthalmology, Birmingham Children's Hospital, Birmingham, UK
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Venugopal NP, Kummararaj S, Kummararaj G. Masking of Papilledema by Glaucoma. Ann Indian Acad Neurol 2018; 21:330-331. [PMID: 30532370 PMCID: PMC6238550 DOI: 10.4103/aian.aian_248_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Nataraja Pillai Venugopal
- Department of Neuro-Ophthalmology and Glaucoma, AG Eye Hospital, Trichy, Tamil Nadu, India,Address for correspondence: Dr. Nataraja Pillai Venugopal, AG Eye Hospital, Puthur, Trichy - 620 017, Tamil Nadu, India. E-mail:
| | - Sherin Kummararaj
- Department of Pediatric Ophthalmology and Perimetry, AG Eye Hospital, Trichy, Tamil Nadu, India
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