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Kerscher SR, Tellermann J, Zipfel J, Bevot A, Haas-Lude K, Schuhmann MU. Influence of sex and disease etiology on the development of papilledema and optic nerve sheath extension in the setting of intracranial pressure elevation in children. BRAIN & SPINE 2023; 4:102729. [PMID: 38510611 PMCID: PMC10951694 DOI: 10.1016/j.bas.2023.102729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 12/03/2023] [Accepted: 12/08/2023] [Indexed: 03/22/2024]
Abstract
Introduction Dilatation of the optic nerve sheath diameter and swelling of the optic disc are known phenomena associated with intracranial pressure elevation. Research question Do sex and disease etiology have an impact on the development of optic disc elevation and optic nerve sheath extension in children in the setting of ICP elevation? Fundoscopic papilledema and point-of-care-ultrasound techniques-optic nerve sheath diameter (US-ONSD) and optic disc elevation (US-ODE) - were compared in this regard. Material and methods 72 children were included in this prospective study; 50 with proven pathology (e.g. pseudotumor cerebri, tumor), 22 with pathology excluded. Bilateral US-ONSD and US-ODE were quantified by US using a 12-MHz-linear-array-transducer. This was compared with fundoscopic optic disc findings and in 28 patients with invasive ICP values, stratified for sex and etiology. Results In patients with proven disease, significant more girls (69%) had fundoscopic papilledema compared with boys (37%, p < 0.05). Girls had also larger US-ODE values (0.86 ± 0.36 mm vs. 0.65 ± 0.40 mm in boys). 80% of tumor patients had initial papilledema (100% girls, 79% boys), compared with 50% in pseudotumor cerebri (PTC) (83% girls, 30% boys). US-ONSD had no sex- and no etiology-specificity. Discussion and conclusion Presence of papilledema appears to be influenced by sex and etiology, whereas US-ONSD is not. Girls seem more likely to develop papilledema under similar conditions. Male sex and PTC appear as risk factors for being undetected by fundoscopic findings. US-ONSD and US-ODE seem useful tools to identify pathologies with potentially increased ICP requiring treatment in children regardless of sex and etiology.
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Affiliation(s)
- Susanne Regina Kerscher
- Department of Neurosurgery and Neurotechnology, Division of Pediatric Neurosurgery, University Hospital of Tuebingen, Germany
- Department of Diagnostic and Interventional Radiology, University Hospital Ulm, Germany
| | - Jonas Tellermann
- Department of Neurosurgery and Neurotechnology, Division of Pediatric Neurosurgery, University Hospital of Tuebingen, Germany
| | - Julian Zipfel
- Department of Neurosurgery and Neurotechnology, Division of Pediatric Neurosurgery, University Hospital of Tuebingen, Germany
| | - Andrea Bevot
- Department of Pediatric Neurology and Developmental Medicine, University Children’ s Hospital of Tuebingen, Germany
| | - Karin Haas-Lude
- Department of Pediatric Neurology and Developmental Medicine, University Children’ s Hospital of Tuebingen, Germany
| | - Martin Ulrich Schuhmann
- Department of Neurosurgery and Neurotechnology, Division of Pediatric Neurosurgery, University Hospital of Tuebingen, Germany
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Senderowich N, Bachar-Zipori A, Mitelpunkt A, Latzer IT, Klein A, Mezad-Koursh D, Fattal-Valevski A, Hausman-Kedem M. Predictors of disease course and long-term outcomes of idiopathic intracranial hypertension in children and adolescents. Eur J Pediatr 2023; 182:5137-5147. [PMID: 37691042 DOI: 10.1007/s00431-023-05173-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 08/20/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023]
Abstract
This study aimed to identify predictors for unfavorable disease course and clinical and visual outcomes in pediatric patients with idiopathic intracranial hypertension (IIH). Employing a multi-tiered approach, we retrospectively analyzed clinical, ophthalmic, and neuroimaging data from patients diagnosed with IIH between 2003 and 2021. Of the 97 patients included, 56 (58%) were females. The median age was 12 years [Interquartile range (IQR) 9, 14], and the median follow-up time was 39.0 months (IQR 14.8, 90.9). Forty-two (43%) patients had an unfavorable disease course, 28 (29%) had persistence of headache at last follow-up, and 16 (18%) had a poor visual outcome, most of them with mild visual disturbances. Poor visual outcome was more common in females compared to males [16/47 (34%) vs. 0/39, p < 0.001)]. On multivariate regression analysis, female sex and disease recurrence were significantly associated with poor visual outcomes (OR: 18.5, CI:1.3-270, P = 0.03, and OR: 5.1, CI: 1.2-22.5, P = 0.03, respectively). Patients with persistent headaches exhibited lower incidence of papilledema, lower opening pressure, and fewer neuroimaging markers indicating elevated intracranial pressure. CONCLUSIONS This study provides insights into predictive factors for an unfavorable disease course, persistent headaches, and poor visual outcomes in patients with childhood IIH. Patients with persistent headaches may have a variant of a chronic pain syndrome warranting a different therapeutic approach. WHAT IS KNOWN • Childhood-onset Idiopathic Intracranial hypertension (IIH) is a heterogenous disease. The knowledge on disease trajectory and long-term outcomes and its predictors is limited. WHAT IS NEW • A higher opening pressure and factors suggestive of the metabolic syndrome predict an unfavorable disease course whereas female sex and disease recurrence are significantly associated with poor visual outcomes • A third of the patients diagnosed with IIH experience ongoing headaches despite achieving favorable visual outcomes. This subset, characterized by lower disease-severity indicators at onset may represent a distinct subgroup warranting a different therapeutic approach.
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Affiliation(s)
| | - Anat Bachar-Zipori
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Ophthalmology Division, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Alexis Mitelpunkt
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, Tel Aviv, 6423906, Israel
| | - Itay Tokatly Latzer
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, Tel Aviv, 6423906, Israel
| | - Ainat Klein
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Ophthalmology Division, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Daphna Mezad-Koursh
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Ophthalmology Division, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Aviva Fattal-Valevski
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, Tel Aviv, 6423906, Israel
| | - Moran Hausman-Kedem
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
- Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, Tel Aviv, 6423906, Israel.
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3
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Surgical Management of Idiopathic Intracranial Hypertension in Pregnancy. J Neuroophthalmol 2022; 42:419-427. [PMID: 35833939 DOI: 10.1097/wno.0000000000001658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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Improving pediatric idiopathic intracranial hypertension care: a retrospective cohort study. Sci Rep 2022; 12:19218. [PMID: 36357479 PMCID: PMC9649632 DOI: 10.1038/s41598-022-23960-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
To describe the clinical course and prognosis of pediatric idiopathic intracranial hypertension (IIH) and examine the preferred management setting. IIH is characterized by increased intracranial pressure and is often associated with headaches and visual complaints. IIH is a preventable cause of vision loss in children. Hence, a rapid diagnosis followed by prompt treatment and follow-up is essential. However, standardization of the management of IIH in the pediatric population is not well established. Computerized medical charts of all 82 pediatric (< 18 years) patients diagnosed with IIH between 2007 and 2018 in the metropolitan area of Jerusalem were reviewed. Comparison was made between children followed in a multidisciplinary clinic in tertiary centers and those followed elsewhere. Detailed demographic and clinical data, as well as data regarding the follow-up setting and clinical course of the disease, were collected and analyzed. Recurrent IIH-related hospital returns were selected as a measurable marker for the uncontrolled disease. Recurrent IIH-related hospital return rate was significantly lower and occurred later among children followed by multidisciplinary teams compared to individual experts. Follow-up in multidisciplinary clinics improve the quality of life, and financial burden and may prevent permanent visual impairment in children with IIH.
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5
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Byth LA, Lust K, Jeffree RL, Paine M, Voldanova L, Craven AM. Management of idiopathic intracranial hypertension in pregnancy. Obstet Med 2022; 15:160-167. [PMID: 36262821 PMCID: PMC9574447 DOI: 10.1177/1753495x211021333] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 05/11/2021] [Indexed: 09/03/2023] Open
Abstract
Idiopathic intracranial hypertension is more common among women of reproductive age and is often encountered in pregnancy, either pre-existing and exacerbated by pregnancy-associated weight gain and hormonal changes or arising de novo. We report the case of a 33-year-old woman with progressive visual loss and intractable headache from 20 weeks' gestation requiring ventriculoperitoneal shunting during pregnancy. The risk of permanent maternal vision loss raises complex management dilemmas, when this must be balanced with the fetal and neonatal risks of treatment and possible premature delivery.
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Affiliation(s)
- Lachlan Andrew Byth
- Department of Obstetric Medicine, Royal Brisbane and Women’s
Hospital, Herston, Australia
- Griffith University School of Medicine, Southport,
Australia
| | - Karin Lust
- Department of Obstetric Medicine, Royal Brisbane and Women’s
Hospital, Herston, Australia
- University of Queensland School of Medicine, Herston,
Australia
| | - Rosalind L Jeffree
- Department of Neurosurgery, Royal Brisbane and Women’s Hospital,
Herston, Australia
- University of Queensland School of Medicine, Herston,
Australia
| | - Mark Paine
- Department of Neurology, Royal Brisbane and Women’s Hospital,
Herston, Australia
| | - Lucie Voldanova
- Department of Anaesthesia, Royal Brisbane and Women’s Hospital,
Herston, Australia
| | - Ann-Maree Craven
- Department of Obstetric Medicine, Royal Brisbane and Women’s
Hospital, Herston, Australia
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Abstract
Objective To review and discuss the clinical presentation and treatment of
idiopathic intracranial hypertension. Discussion Visual alterations and headache are the two main symptoms of
idiopathic intracranial hypertension, although additional
features including cranial nerve palsies, cognitive deficits,
olfactory deficits and tinnitus are not uncommon. The headache
associated with idiopathic intracranial hypertension frequently
has a migrainous phenotype. The underlying cause of the disorder
has not yet been elucidated. Several hypotheses have been
postulated but none of them can explain the full clinical
picture. Therapeutic options remain limited, focusing mainly on
reduction in body weight and the reduction of CSF production
with carbonic anhydrase inhibitors. Conclusion The accurate diagnosis of idiopathic intracranial hypertension is
essential as visual deterioration due to papilledema may be
irreversible. Given its phenotypic similarity and frequent
overlap with chronic migraine it is essential to consider
idiopathic intracranial hypertension in the diagnostic workup of
chronic headache; in particular, when considering its increasing
prevalence. Understanding in detail the pathophysiological
mechanisms behind the associated headache would also allow study
of current and future therapeutic options in a structured
way.
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Affiliation(s)
- Naz Raoof
- Department of Paediatrics, Strabismus and Neuro-ophthalmology, Moorfields Eye Hospital, London, UK.,Department of Ophthalmology, Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Jan Hoffmann
- Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,NIHR-Wellcome Trust King's Clinical Research Facility/SLaM Biomedical Research Centre, King's College Hospital, London, UK
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7
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Xu W, Prime Z, Papchenko T, Danesh-Meyer HV. Long term outcomes of idiopathic intracranial hypertension: Observational study and literature review. Clin Neurol Neurosurg 2021; 205:106463. [PMID: 33962145 DOI: 10.1016/j.clineuro.2020.106463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 12/20/2020] [Accepted: 12/28/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) is an unexplained increase in intracranial pressure often associated with obesity. The aim of this study was to conduct a retrospective observational study of the long term clinical, visual, and treatment outcomes in IIH patients. METHODS A retrospective observational study of patients diagnosed with IIH over a 12-year period at a single centre was completed via database review. Demographic data, symptoms at baseline and last visit, treatments undertaken, and duration of follow-up were included. Visual outcomes, including visual acuity, colour vision, 30-2 Humphrey automated perimetry data, and retinal nerve fibre layer thickness (RNFL), were collected at baseline and last visit. RESULTS IIH was diagnosed in 132 patients (90.9 % female) with a median of 2.8 years (range: 0-9.1) follow-up. Mean BMI was 35.9 ± 7.9 kg/m2. Symptoms at presentation were headache (87.6 %), pulsatile tinnitus (27.2 %) and transient visual obscurations (27.2 %). First-line management was acetazolamide in 86.4 %, with 34.2 % of these patients ceasing treatment because of adverse events. Visual field measures and RNFL at last follow-up improved when compared to baseline (median MD: - 1.99 dB (IQR -3.6 to -0.9) to -0.85 (-2.1 to 0.0) (p < 0.001), median RNFL: 132 μm (IQR 116 - 183) to 103 (92 - 113) (p < 0.001)). Some patients (6.1 %) required surgery for more severe IIH. CONCLUSIONS Long-term symptomatic and visual prognosis in IIH patients is excellent. However, a subset of patients with more severe disease require surgical intervention. Adverse events of treatment lead to high medication discontinuation rates.
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Affiliation(s)
- William Xu
- Department of Ophthalmology, Faculty of Medical and Health Sciences, University of Auckland, New Zealand
| | - Zak Prime
- Department of Ophthalmology, Greenlane Hospital, Auckland District Health Board, New Zealand
| | - Taras Papchenko
- Department of Ophthalmology, Greenlane Hospital, Auckland District Health Board, New Zealand
| | - Helen V Danesh-Meyer
- Department of Ophthalmology, Faculty of Medical and Health Sciences, University of Auckland, New Zealand.
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8
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Grech O, Mollan SP, Wakerley BR, Alimajstorovic Z, Lavery GG, Sinclair AJ. Emerging themes in idiopathic intracranial hypertension. J Neurol 2020; 267:3776-3784. [PMID: 32700012 PMCID: PMC7674362 DOI: 10.1007/s00415-020-10090-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Idiopathic intracranial hypertension (IIH) is a rare disorder characterised by raised intracranial pressure. The underlying pathophysiology is mostly unknown and effective treatment is an unmet clinical need in this disease. This review evaluates key emerging themes regarding disease characteristics, mechanisms contributing to raised intracranial pressure and advances in potential therapeutic targets. FINDINGS IIH is becoming more common, with the incidence rising in parallel with the global obesity epidemic. Current medical management remains centred around weight management, which is challenging. Metabolic investigations of patients have identified specific androgen profiles in cerebrospinal fluid (CSF), which suggest an endocrine dysfunction impacting CSF secretion in IIH. Glucagon-like peptide-1 (GLP-1) and 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) have been found to play a role in CSF dynamics in IIH and have formed the basis of the first clinical trials looking at new treatments. CONCLUSIONS Identification of novel molecular targets thought to underlie IIH pathology is now being translated to clinical trials.
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Affiliation(s)
- Olivia Grech
- Metabolic Neurology, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TH UK
| | - Susan P. Mollan
- Birmingham Neuro-Ophthalmology, Ophthalmology Department, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH UK
| | | | - Zerin Alimajstorovic
- Metabolic Neurology, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TH UK
| | - Gareth G. Lavery
- Metabolic Neurology, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TH UK
| | - Alexandra J. Sinclair
- Metabolic Neurology, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TH UK
- Department of Neurology, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH UK
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9
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A clinical and radiological study in patients with idiopathic intracranial hypertension. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2020. [DOI: 10.1186/s41983-020-00189-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Idiopathic intracranial hypertension (IIH) is one of the chronic causes of elevated intracranial pressure with no evident cause in neuroimaging and normal CSF analysis. It primarily affects overweight women of childbearing age.
Aim of work
To describe the clinical picture of IIH, neuroimaging and response to treatment after 3 months follow up in a sample of Egyptian patients.
Patients and methods
This was a prospective study carried out on 25 patients presented at Alexandria University Hospital with symptomatology of IIH. All the patients were subjected to complete history taking, neurological examination, fundus examination, lumbar puncture, and MRI brain and MR cerebral venography. The patients were followed-up for 3 months for assessment of treatment response.
Results
Patients’ ages ranged from 1 0to 50 years, with a mean BMI 32.32 ± 5.28 kg m2. Headache was the presenting manifestation in 100% of the patients. About 60% of the sample were either misdiagnosed or had a delayed diagnosis. There was a significant positive correlation between CSF opening pressure (r = 0.504, p = 0.010), severity of headache (r = 0.472, p = 0.017) and grade of papilledema. Optic hydropes and empty sellaturcica were the most common MRI abnormalities occurring in 95.8% and 70.8%, respectively. Only 30% of the cases had normal MRV. Stenosis at genu junction and focal stenosis at transverse sinus occurred in 24% and 20% of the cases, respectively. Combined medical and serial lumbar puncture were the most effective line of therapy in the recruited patients.
Conclusion
Headache is the most common presentation of IIH, and its severity is positively correlated with papilledema grade. CSF pressure is also positively correlated with papilledema grade.
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10
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An update on idiopathic intracranial hypertension in adults: a look at pathophysiology, diagnostic approach and management. J Neurol 2020; 268:3249-3268. [PMID: 32462350 DOI: 10.1007/s00415-020-09943-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 02/06/2023]
Abstract
Idiopathic intracranial hypertension is a neurological syndrome determined by a rise in intracranial pressure without a detectable cause. Course and prognosis may be changeable, requiring a multidisciplinary approach for its diagnosis and management. Although its precise pathogenesis is still unknown, many studies have been carried out to define the possible causal and associated factors, such as retinoids, steroid hormones, body mass index and recent weight gains, cytokines and adipokines levels. The clinical presentation can be variable including chronic headache, disturbance of vision, diplopia and tinnitus. Even if papilloedema is considered the most specific sign, it could not be observed in more than 5% of patients during the evaluation of the fundus oculi. Neuroradiological signs acquire greater importance in patients who do not present papilloedema and may suggest the diagnosis of idiopathic intracranial hypertension. Other assessments can be useful in the diagnostic process, such as optical coherence tomography, visual evoked potentials, ocular ultrasonography and fundus fluorescein angiography and autofluorescence. Nonetheless, cerebrospinal fluid pressure measurement is required to establish a definite diagnosis. Management may be different, since surgical procedures or lumbar punctures are often required when symptoms develop rapidly leading to a loss of visual function. Apart from these cases, patients can be treated with a pharmacological approach and low-calorie diet, but they also need to be monitored over time since relapses years later are not uncommon.
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11
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Rehder D. Idiopathic Intracranial Hypertension: Review of Clinical Syndrome, Imaging Findings, and Treatment. Curr Probl Diagn Radiol 2019; 49:205-214. [PMID: 31056359 DOI: 10.1067/j.cpradiol.2019.02.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 02/25/2019] [Accepted: 02/25/2019] [Indexed: 11/22/2022]
Abstract
Idiopathic intracranial hypertension (IIH) is a syndrome of unknown cause that is increasing in frequency. Patients who are typically women of childbearing age and obese present with headaches and may also present with visual changes that may become chronic. The purpose of this review is to describe the possible mechanisms for this disease and also to illustrate the ever increasing role of imaging in the diagnosis of this disorder. In addition, the various methods of treatment including medical and surgical will be reviewed. The fact that idiopathic intracranial hypertension has undergone many name changes over the years serves as a reminder that the underlying mechanism is still not well understood. Although there are only several possible mechanisms that can cause increased intracranial pressure, it is still not certain which of these mechanisms is involved. The role of imaging has significantly changed in the evaluation of patients with possible IIH. First, it is involved in ruling out secondary causes of increased intracranial pressure. In addition, there is now ample evidence that the previously held belief that imaging of patients with IIH should be normal is incorrect but rather that there are several subtle findings that radiologists need to look for. These findings include a partially empty sella, flattening of the posterior globe, cupping of optic disks and distension of the optic nerve sheaths. In addition, the role of intracranial venography is playing an ever increasing role due to the finding that a very high percentage of patients have dural venous sinus stenoses. It is becoming clear that there is potentially true morbidity associated with idiopathic intracranial hypertension. The earlier the disease can be diagnosed, the earlier treatment can be started to minimalize permanent visual changes including blindness. Treatment varies from institution to institution due to the fact that multiple specialists with different perspectives treat these patients. Knowledge of subtle imaging features associated with idiopathic intracranial hypertension can help radiologists establish the diagnosis earlier and potentially prevent complications of this disorder. However imaging has not as of yet been shown to be beneficial in managing patients with idiopathic intracranial hypertension.
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Affiliation(s)
- Dirk Rehder
- Dept. of Radiology, University of Alabama - Birmingham, Birmingham, AL.
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12
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Hoffmann J, Mollan SP, Paemeleire K, Lampl C, Jensen RH, Sinclair AJ. European headache federation guideline on idiopathic intracranial hypertension. J Headache Pain 2018; 19:93. [PMID: 30298346 PMCID: PMC6755569 DOI: 10.1186/s10194-018-0919-2] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 09/14/2018] [Indexed: 02/08/2023] Open
Abstract
Background Idiopathic Intracranial Hypertension (IIH) is characterized by an elevation of intracranial pressure (ICP no identifiable cause. The aetiology remains largely unknown, however observations made in a number of recent clinical studies are increasing the understanding of the disease and now provide the basis for evidence-based treatment strategies. Methods The Embase, CDSR, CENTRAL, DARE and MEDLINE databases were searched up to 1st June 2018. We analyzed randomized controlled trials and systematic reviews that investigate IIH. Results Diagnostic uncertainty, headache morbidity and visual loss are among the highest concerns of clinicians and patients in this disease area. Research in this field is infrequent due to the rarity of the disease and the lack of understanding of the underlying pathology. Conclusions This European Headache Federation consensus paper provides evidence-based recommendations and practical advice on the investigation and management of IIH. Electronic supplementary material The online version of this article (10.1186/s10194-018-0919-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jan Hoffmann
- Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Wellcome Foundation Building, Denmark Hill Campus, King's College London, London, SE5 9PJ, UK.
| | - Susan P Mollan
- Birmingham Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Koen Paemeleire
- Department of Neurology, Ghent University Hospital, Ghent, Belgium
| | - Christian Lampl
- Headache Medical Centre, Seilerstaette Linz, Ordensklinikum Linz, Barmherzige Schwestern, Linz, Austria
| | - Rigmor H Jensen
- Danish Headache Center, Department of Neurology, Rigshospitalet-Glostrup, University of Copenhagen, Glostrup, Denmark
| | - Alexandra J Sinclair
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, UK
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13
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Delen F, Peker E, Onay M, Altay ÇM, Tekeli O, Togay Işıkay C. The Significance and Reliability of Imaging Findings in Pseudotumor Cerebri. Neuroophthalmology 2018; 43:81-90. [PMID: 31312231 DOI: 10.1080/01658107.2018.1493514] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/20/2018] [Accepted: 06/22/2018] [Indexed: 10/28/2022] Open
Abstract
The objective of our study was to provide a comparative assessment of previously reported magnetic resonance imaging (MRI) parameters in primary and secondary pseudotumor cerebri (PTC) patients, to examine their diagnostic contribution, and to evaluate their association with symptoms, neuro-ophthalmological findings, laboratory results, and cerebrospinal fluid characteristics. Twenty-eight consecutive patients with PTC were included in the study. Age- and sex-matched 20 individuals with normal neurologic examination served as the control group. Modified Dandy Criteria were used for the diagnosis of PTC. Orbital and cranial MRI and MR venography of all patients and controls were assessed by three radiologists. According to our study, posterior flattening of the globe (64% sensitive, 100% specific), optic nerve sheath distention (46% sensitive, 100% specific), vertical tortuosity of the optic nerve (30% sensitive, 95% specific), and partial empty sella (43% sensitive, 100% specific) emerged as particularly valuable markers for a diagnosis of PTC.
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Affiliation(s)
- Firuze Delen
- Department of Neurology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Elif Peker
- Department of Radiology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Onay
- Department of Radiology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Çetin Murat Altay
- Department of Radiology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Oya Tekeli
- Department of Ophthalmology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Canan Togay Işıkay
- Department of Neurology, Ankara University Faculty of Medicine, Ankara, Turkey
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Chatziralli I, Theodossiadis P, Theodossiadis G, Asproudis I. Perspectives on diagnosis and management of adult idiopathic intracranial hypertension. Graefes Arch Clin Exp Ophthalmol 2018; 256:1217-1224. [PMID: 29619550 DOI: 10.1007/s00417-018-3970-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 02/19/2018] [Accepted: 03/26/2018] [Indexed: 01/03/2023] Open
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15
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Manfield JH, Yu KKH, Efthimiou E, Darzi A, Athanasiou T, Ashrafian H. Bariatric Surgery or Non-surgical Weight Loss for Idiopathic Intracranial Hypertension? A Systematic Review and Comparison of Meta-analyses. Obes Surg 2017; 27:513-521. [PMID: 27981458 PMCID: PMC5237659 DOI: 10.1007/s11695-016-2467-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Idiopathic intracranial hypertension (IIH) is associated with obesity and weight loss by any means is considered beneficial in this condition. Objectives This study aims to appraise bariatric surgery vs. non-surgical weight-loss (medical, behavioural and lifestyle) interventions in IIH management. Methods A systematic review and meta-analyses of surgical and non-surgical studies. Results Bariatric surgery achieved 100% papilloedema resolution and a reduction in headache symptoms in 90.2%. Non-surgical methods offered improvement in papilloedema in 66.7%, visual field defects in 75.4% and headache symptoms in 23.2%. Surgical BMI decrease was 17.5 vs. 4.2 for non-surgical methods. Conclusions Whilst both bariatric surgery and non-surgical weight loss offer significant beneficial effects on IIH symptomatology, future studies should address the lack of prospective and randomised trials to establish the optimal role for these interventions. Electronic supplementary material The online version of this article (doi:10.1007/s11695-016-2467-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- James H Manfield
- Department of Neurosurgery, Royal Preston Hospital, Preston, Lancashire, UK
| | - Kenny K-H Yu
- Department of Neurosurgery, Royal Preston Hospital, Preston, Lancashire, UK
| | - Evangelos Efthimiou
- Department of Bariatric Surgery, Chelsea and Westminster Hospital, London, UK
| | - Ara Darzi
- Department of Surgery and Cancer, Imperial College London, 3rd Floor Chelsea and Westminster Hospital Campus, 369 Fulham Road, London, SW10 9NH, UK
| | - Thanos Athanasiou
- Department of Surgery and Cancer, Imperial College London, 3rd Floor Chelsea and Westminster Hospital Campus, 369 Fulham Road, London, SW10 9NH, UK
| | - Hutan Ashrafian
- Department of Bariatric Surgery, Chelsea and Westminster Hospital, London, UK. .,Department of Surgery and Cancer, Imperial College London, 3rd Floor Chelsea and Westminster Hospital Campus, 369 Fulham Road, London, SW10 9NH, UK.
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Hoffmann J. Impaired cerebrospinal fluid pressure. HANDBOOK OF CLINICAL NEUROLOGY 2017; 146:171-185. [PMID: 29110769 DOI: 10.1016/b978-0-12-804279-3.00011-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Abnormalities of cerebrospinal fluid (CSF) pressure are relatively common and may lead to a variety of symptoms, with headache usually being the most prominent one. The clinical presentation of alterations in CSF pressure may vary significantly and show a striking similitude to several primary headache syndromes. While an increase in CSF pressure may be of primary or secondary origin, a pathologic decrease of CSF pressure is usually the result of a meningeal rupture with a resulting leakage of CSF. The pathophysiologic mechanisms of idiopathic intracranial hypertension (IIH) remain largely unknown. However recent evidence indicates that an abnormality in CSF outflow and absorption is likely to play a significant role. Treatment usually consists of a combination of weight loss and a pharmacologic approach using carbonic anhydrase inhibitors. Recent results of the first randomized, double-blind, placebo-controlled trial (RCT) with acetazolamide proved its efficacy in reducing headache and visual disturbances. Clinical evidence suggests efficacy for topiramate and furosemide but no RCT has been conducted to date to confirm these results. In contrast to IIH, spontaneous intracranial hypotension frequently remits spontaneously without specific treatment. If necessary, treatment options range from conservative methods to epidural blood or fibrin sealant patches and surgical interventions.
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Affiliation(s)
- Jan Hoffmann
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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The Optic Canal Size Is Associated With the Severity of Papilledema and Poor Visual Function in Idiopathic Intracranial Hypertension. J Neuroophthalmol 2017; 36:120-5. [PMID: 26580295 DOI: 10.1097/wno.0000000000000318] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND To determine whether the size of the bony optic canal is associated with the severity of papilledema and poor visual function in idiopathic intracranial hypertension (IIH). METHODS We performed a retrospective review of definite patients with IIH with requisite brain magnetic resonance imaging allowing for optic canal measurement. Clinical characteristics and automated (Humphrey) visual field results were reviewed; papilledema was graded according to the modified Frisén scale. Cross-sectional area of the optic canals was measured independently by 2 readers and averaged for each canal. Logistic regression modeling was applied. RESULTS Sixty-nine patients with IIH were included (mean age: 33; 91% women; 65% black). Controlling for age, sex, body mass index, race, and cerebrospinal fluid (CSF) opening pressure, each mm increase in canal size was associated with a 0.50 dB reduction in Humphrey visual field mean deviation (P = 0.006); this was likely mediated by the increased odds of Grade 4-5 papilledema or optic atrophy in patients with larger canals (odds ratio: 1.30 [95% CI: 1.10-1.55; P = 0.003] for Grade 4-5 papilledema or atrophy vs grade <4 papilledema per mm increase in canal size). CONCLUSIONS Poor visual function and severe papilledema or optic atrophy were associated with a larger optic canal. Potential mechanisms include alteration of local CSF flow or bony remodeling at the optic canals.
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Albarrak AM, Kojan S. Uncommon Presentation of Idiopathic Intracranial Hypertension in a Patient with Polycystic Ovary Syndrome: A Case Report. Case Rep Neurol 2017; 9:49-53. [PMID: 28611643 PMCID: PMC5465705 DOI: 10.1159/000466685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 02/27/2017] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Idiopathic intracranial hypertension is a rare condition characterized by increased intracranial pressure without clinical, laboratory, or radiological evidence of intracranial pathology. Early management could prevent irreversible outcomes. CASE PRESENTATION A 17-year-old single Arabian female of Arab origin presented with a 2-day complaint of horizontal diplopia and transient visual obscurations. She denied any history of headache or decreased vision. The patient was diagnosed with polycystic ovary syndrome a year prior to presentation. Examination revealed bilateral moderate papilledema and limited left eye abduction. However, visual acuity and fields were normal. Increased intracranial pressure was confirmed by lumbar puncture opening pressure (550 mm H<Sub>2</Sub>O). The cerebrospinal fluid composition and imaging of brain and cerebral venous system were normal. The diagnosis of idiopathic intracranial hypertension was confirmed and the patient was treated with acetazolamide 500 mg twice per day. The symptoms totally resolved within 3 days and the papilledema disappeared after 2 months. CONCLUSION Awareness of such uncommon presentation of idiopathic intracranial hypertension emphasizes the critical importance of detailed ophthalmic examination and shows the good prognosis of early management.
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Affiliation(s)
| | - Suleiman Kojan
- bKing Abdulaziz Medical City/King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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Chagot C, Blonski M, Machu JL, Bracard S, Lacour JC, Richard S. Idiopathic Intracranial Hypertension: Prognostic Factors and Multidisciplinary Management. J Obes 2017; 2017:5348928. [PMID: 28884026 PMCID: PMC5572623 DOI: 10.1155/2017/5348928] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 07/03/2017] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) mostly affects young obese women and can lead to permanent visual impairment. However, prognostic factors and therapeutic strategy remain unclear. METHODS We retrospectively collected data from all patients diagnosed and managed for IIH in our university center from January 2001 to December 2016. RESULTS Seventy-nine patients were diagnosed with IIH. Bilateral transverse sinus stenosis (TSS) was found in 74% of the population. Visual outcome at 6 months was poor for 46% of patients, including all patients presenting weight gain of at least 5% since diagnosis (p < 0.001), whereas mean body mass index at diagnosis was not different between patients with poor versus good outcome (32.9 ± 7.7 versus 34.6 ± 9.4 kg·m-2). Other significant factors of poor prognosis were bilateral TSS (OR = 5.2; 95 CI: 1.24-24.9; p = 0.024). Thirteen patients with poor outcome after 6-month assessment underwent unilateral TSS stenting leading to visual improvement in 11 cases. CONCLUSION Weight gain, rather than initial weight, emerged as the leading factor of poor visual outcome in patients with IIH, followed by presence of bilateral TSS. Consequently, first-line treatment must include dietary measures to control weight. Unilateral stenting appears to be a safe second-line treatment option for patients with bilateral TSS.
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Affiliation(s)
- Claire Chagot
- Department of Neurology, Stroke Unit, University Hospital of Nancy, 54035 Nancy, France
| | - Marie Blonski
- Department of Neurology, Stroke Unit, University Hospital of Nancy, 54035 Nancy, France
| | - Jean-Loup Machu
- Centre d'Investigation Clinique Plurithématique (CIC-P 1433), INSERM U1116, University Hospital of Nancy, 54500 Vandoeuvre-lès-Nancy, France
| | - Serge Bracard
- Department of Neuroradiology, University Hospital of Nancy, 54035 Nancy, France
| | | | - Sébastien Richard
- Department of Neurology, Stroke Unit, University Hospital of Nancy, 54035 Nancy, France
- Centre d'Investigation Clinique Plurithématique (CIC-P 1433), INSERM U1116, University Hospital of Nancy, 54500 Vandoeuvre-lès-Nancy, France
- *Sébastien Richard:
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Guy AH, Wiggs JL, Turalba A, Pasquale LR. Translating the Low Translaminar Cribrosa Pressure Gradient Hypothesis into the Clinical Care of Glaucoma. Semin Ophthalmol 2016; 31:131-9. [PMID: 26959138 DOI: 10.3109/08820538.2015.1114855] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Glaucoma is an optic neuropathy with multiple known risk factors, including age, race, family history, and intraocular pressure. Unfortunately, the only currently modifiable risk factor in treating the disease is intraocular pressure (IOP). Recent studies have investigated intracranial pressure (ICP) and the translaminar cribrosa pressure gradient as a potential explanation for glaucomatous optic nerve vulnerability across a range of IOP values. The difference between these two pressures across the lamina cribrosa may have an effect on the optic nerve, which could provide another modifiable parameter in the battle against glaucoma. In order for modification of the translaminar pressure gradient to be considered in the treatment of glaucoma, noninvasive methods to accurately measure ICP need to be developed. The translaminar pressure gradient could be therapeutically adjusted by either further lowering the IOP or raising the ICP when it is pathologically low, if possible.
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Affiliation(s)
- Ann H Guy
- a Glaucoma Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School , Boston , Massachusetts , USA , and
| | - Janey L Wiggs
- a Glaucoma Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School , Boston , Massachusetts , USA , and
| | - Angela Turalba
- a Glaucoma Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School , Boston , Massachusetts , USA , and
| | - Louis R Pasquale
- a Glaucoma Service, Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School , Boston , Massachusetts , USA , and.,b Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston , Massachusetts , USA
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Lee YA, Tomsak RL, Sadikovic Z, Bahl R, Sivaswamy L. Use of Ocular Coherence Tomography in Children With Idiopathic Intracranial Hypertension-A Single-Center Experience. Pediatr Neurol 2016; 58:101-106.e1. [PMID: 26971313 DOI: 10.1016/j.pediatrneurol.2015.10.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/22/2015] [Accepted: 10/27/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Idiopathic intracranial hypertension is a disorder characterized by elevated intracranial pressure without an identifiable etiology. Detection of papilledema may be challenging and leads to diagnostic uncertainty in evaluating a child for possible idiopathic intracranial hypertension. Ocular coherence tomography has the potential to add accuracy to the diagnosis of idiopathic intracranial hypertension. The goal of the present study was to determine if there was a relationship between severity of papilledema (as determined by direct ophthalmoscopy and confirmed by fundus photography) and measures of ocular coherence tomography in a pediatric population with idiopathic intracranial hypertension. METHODS Thirteen pediatric patients were recruited prospectively after diagnosis of either definitive idiopathic intracranial hypertension (with papilledema) or possible idiopathic intracranial hypertension (without papilledema) at Children's Hospital of Michigan over a period of one year. Clinical data and results of initial ocular coherence tomography and visual field testing were collected and statistically analyzed. RESULTS The Frisén scale of papilledema significantly correlated with average retinal nerve fiber layer thickness of each eye (r = 0.633, P = 0.02 in right eye and r = 0.868, P = 0.001 in left eye). The retinal nerve fiber layer thickness (mean ± SD) was significantly higher in the definitive group than in the possible group (189 ± 65 μm vs 104 ± 10 μm in right eye, 165 ± 42 μm vs 106 ± 9 μm in left eye, P < 0.01 in both eyes). CONCLUSIONS Ocular coherence tomography may be used as a supplementary method to aid in the reliable detection of papilledema in evaluating a child for idiopathic intracranial hypertension.
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Affiliation(s)
- Young Ah Lee
- Division of Pediatric Neurology, Department of Pediatrics, Children's Hospital of Michigan, Detroit, Michigan
| | - Robert L Tomsak
- Wayne State University School of Medicine, Kresge Eye Institute, Detroit, Michigan
| | - Zlatan Sadikovic
- Ophthalmic Photography Department, Kresge Eye Institute, Detroit, Michigan
| | - Reecha Bahl
- Department of Ophthalmology, Wayne State University School of Medicine, Kresge Eye Institute, Detroit, Michigan
| | - Lalitha Sivaswamy
- Wayne State University School of Medicine, Department of Pediatrics, Children's Hospital of Michigan, Detroit, Michigan.
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Markey KA, Mollan SP, Jensen RH, Sinclair AJ. Understanding idiopathic intracranial hypertension: mechanisms, management, and future directions. Lancet Neurol 2016; 15:78-91. [PMID: 26700907 DOI: 10.1016/s1474-4422(15)00298-7] [Citation(s) in RCA: 271] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 09/07/2015] [Accepted: 10/13/2015] [Indexed: 01/10/2023]
Abstract
Idiopathic intracranial hypertension is a disorder characterised by raised intracranial pressure that predominantly affects young, obese women. Pathogenesis has not been fully elucidated, but several causal factors have been proposed. Symptoms can include headaches, visual loss, pulsatile tinnitus, and back and neck pain, but the clinical presentation is highly variable. Although few studies have been done to support evidence-based management, several recent advances have the potential to enhance understanding of the causes of the disease and to guide treatment decisions. Investigators of the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT) reported beneficial effects of acetazolamide in patients with mild visual loss. Studies have also established weight loss as an effective disease-modifying treatment, and further clinical trials to investigate new treatments are underway. The incidence of idiopathic intracranial hypertension is expected to increase as rates of obesity increase; efforts to reduce diagnostic delays and identify new, effective approaches to treatment will be key to meeting the needs of a growing number of patients.
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Affiliation(s)
- Keira A Markey
- Neurometabolism Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK
| | - Susan P Mollan
- Neurometabolism Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK; Birmingham Neuro-Ophthalmology Unit, Ophthalmology Department, University Hospitals Birmingham NHS Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Rigmor H Jensen
- Danish Headache Centre, Department of Neurology, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Alexandra J Sinclair
- Neurometabolism Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK.
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Correlation between papilledema grade and diffusion-weighted magnetic resonance imaging in idiopathic intracranial hypertension. J Neuroophthalmol 2015; 34:331-5. [PMID: 25000261 DOI: 10.1097/wno.0000000000000150] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND To explore the relationship between diffusion-weighted magnetic resonance imaging (DWI) hyperintensity of the optic nerve head (ONH) and papilledema grade in patients with idiopathic intracranial hypertension (IIH). METHODS A retrospective chart review was conducted of patients with definitively diagnosed IIH by clinical examination and visual field (VF) analysis who underwent orbital magnetic resonance imaging (MRI) within 4 weeks of diagnosis. A neuroradiologist masked to the diagnosis assessed the results of DWI for each eye independently and graded the signal intensity of the ONH into none, mild, and prominent categories. DWI grading was compared with papilledema grade and visual field mean deviation (VFMD) by Spearman rank correlation analysis and t-tests. RESULTS Forty-two patients were included in the study. A statistically significant difference (P = 0.0195) was found between papilledema grade and patients with prominent DWI findings (n = 16; mean papilledema grade 3.75 ± 1.25) vs mild or no ONH hyperintensity (n = 26; mean papilledema grade 2.79 ± 1.24) at the time of initial diagnosis. DWI hyperintensity of the ONH at diagnosis was also found to be significantly correlated with the degree of papilledema at follow-up (ρ = 0.39, P = 0.0183) but not with VFMD. CONCLUSIONS We found a significant correlation between the severity of papilledema and ONH hyperintensity on DWI in patients with IIH but not with VF loss or other visual parameters. These findings may offer insight into the pathophysiology of papilledema in IIH and provide a surrogate marker for the presence and severity of papilledema.
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Babiker MOE, Prasad M, MacLeod S, Chow G, Whitehouse WP. Fifteen-minute consultation: the child with idiopathic intracranial hypertension. Arch Dis Child Educ Pract Ed 2014; 99:166-72. [PMID: 24667890 DOI: 10.1136/archdischild-2013-305818] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Idiopathic intracranial hypertension (IIH) is a rare condition where intracranial hypertension is found in the context of normal brain parenchyma and no mass lesion, ventriculomegaly, underlying infection, or malignancy. Our understanding of this condition has greatly improved in the recent years with neuroimaging features and normal values for lumbar puncture opening pressure now well defined. This article provides a review of IIH in children and revised diagnostic criteria based on recent evidence and published opinion. We have also presented an algorithmic approach to the child with possible IIH.
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Affiliation(s)
- Mohamed O E Babiker
- Fraser of Allander Neurosciences Unit, Royal Hospital of Sick Children, Glasgow, UK
| | - Manish Prasad
- Department of Paediatrics, Pinderfield General Hospital, Wakefield, UK
| | - Stewart MacLeod
- Fraser of Allander Neurosciences Unit, Royal Hospital of Sick Children, Glasgow, UK
| | - Gabriel Chow
- Department of Paediatric Neurology, Nottingham Children's Hospital, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - William P Whitehouse
- Department of Paediatric Neurology, Nottingham Children's Hospital, Nottingham University Hospitals NHS Trust, Nottingham, UK School of Medicine, University of Nottingham, Nottingham, UK
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Chai NC, Scher AI, Moghekar A, Bond DS, Peterlin BL. Obesity and headache: part I--a systematic review of the epidemiology of obesity and headache. Headache 2014; 54:219-34. [PMID: 24512574 DOI: 10.1111/head.12296] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2013] [Indexed: 01/04/2023]
Abstract
Individually, both obesity and headache are conditions associated with a substantial personal and societal impact. Recent data support that obesity is comorbid with headache in general and migraine specifically, as well as with certain secondary headache conditions such as idiopathic intracranial hypertension. In the current manuscript, we first briefly review the epidemiology of obesity and common primary and secondary headache disorders individually. This is followed by a systematic review of the general population data evaluating the association between obesity and headache in general, and then obesity and migraine and tension-type headache disorders. Finally, we briefly discuss the data on the association between obesity and a common secondary headache disorder that is associated with obesity, idiopathic intracranial hypertension. Taken together, these data suggest that it is important for clinicians and patients to be aware of the headache/migraine-obesity association, given that it is potentially modifiable. Hypotheses for mechanisms of the obesity-migraine association and treatment considerations for overweight and obese headache sufferers are discussed in the companion manuscript, as part II of this topic.
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Affiliation(s)
- Nu Cindy Chai
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Taylor FR, Landy SH, Kaniecki RG. Abstracts and Citations. Headache 2014. [DOI: 10.1111/head.12424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
PURPOSE OF REVIEW Papilledema is one of the most concerning physical examination findings in neurology: it has a broad differential diagnosis of intracranial (and occasionally spinal) pathology associated with increased intracranial pressure. Papilledema impairs axoplasmic flow within the optic nerves and compresses the optic nerves externally; it may lead to profound visual loss. Thus, detection of papilledema and assessment of visual function are essential to patient management. This article reviews the treatment of papilledema-related visual loss in pseudotumor cerebri syndrome, one of the most common causes of papilledema encountered by neurologists. RECENT FINDINGS Results from the Idiopathic Intracranial Hypertension Trial (IIHTT), the first randomized, double-masked, placebo-controlled trial for the treatment of patients with mild visual loss from idiopathic intracranial hypertension, were published in April 2014. The IIHTT provides the first evidence-based treatment recommendations, showing the benefit of acetazolamide and weight loss for improving visual status in patients with mild visual field loss from idiopathic intracranial hypertension. SUMMARY A detailed ophthalmic examination, including perimetry, is critical to the evaluation, treatment, and assessment of treatment response in patients with papilledema.
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Yri HM, Rönnbäck C, Wegener M, Hamann S, Jensen RH. The course of headache in idiopathic intracranial hypertension: a 12-month prospective follow-up study. Eur J Neurol 2014; 21:1458-64. [PMID: 25070715 DOI: 10.1111/ene.12512] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 05/26/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE Our aim was to prospectively describe the course of headache during the first year of idiopathic intracranial hypertension (IIH). METHODS Patients with newly diagnosed IIH were consecutively included from December 2010 to June 2013. Treatment according to standard guidelines was initiated. Headache history was obtained by headache diaries and standardized interviews performed at baseline and after 1, 2, 3 and 12 months. Parallel changes in papilledema were assessed by optical coherence tomography (OCT). All patients had comprehensive neuro-ophthalmological examinations including automated perimetry. RESULTS Forty-four patients were included. Thirty-five patients completed the 12-month follow-up. Dramatic improvement in headache occurred within the first weeks after diagnosis. After 1 year, 15 patients reported no or only infrequent headache. However, 15 of the remaining 20 patients reported sustained chronic headache. Early age of onset and high diagnostic intracranial pressure (ICP) were associated with better headache outcome (≤1 headache days/month) after a year. Papilledema decreased rapidly within the first 2 months of diagnosis. After 1 year, OCT measures had normalized. Visual outcome was excellent in most patients. CONCLUSIONS Although headache in 43% of patients responded well to ICP management, sustained long-term headache was seen in the remaining patients, despite resolution of papilledema. Headache in IIH may thus be attributed to more complex mechanisms than ICP elevation alone. High ICP and young age were associated with better headache outcome. Early treatment according to standard guidelines seems sufficient to ensure excellent visual outcome in the vast majority of patients.
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Affiliation(s)
- H M Yri
- Danish Headache Center, Department of Neurology, Glostrup Hospital, University of Copenhagen, Glostrup, Denmark
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Childhood overweight or obesity increases the risk of IIH recurrence fivefold. Int J Obes (Lond) 2014; 38:1475-7. [PMID: 24638200 DOI: 10.1038/ijo.2014.44] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 02/26/2014] [Accepted: 03/06/2014] [Indexed: 11/08/2022]
Abstract
Overweight and obesity are less closely associated with idiopathic intracranial hypertension (IIH) in young children than in post-pubescent children and adults. We examined the hypothesis that being overweight or obese (body mass index (BMI) ⩾ 85th percentile) in children is a risk factor for IIH recurrence. A total of 43 children with IIH who were followed up for an average of 9 ± 3.4 years were evaluated in a retrospective case-control series. The rate of IIH recurrence was compared between children of healthy weight and children presenting with overweight or obesity, using survival curve analysis. The overall risk for long-term IIH recurrence in children is ~20%. Following weight stratification, the risk for IIH recurrence in our cohort was fivefold higher in children with a BMI ⩾ 85th percentile (57%) than in healthy weight children (11%; log-rank test P = 0.04). Pediatricians may consider counseling families that weight control may be a means of decreasing the risk of IIH recurrence.
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