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Bsteh G, Macher S, Krajnc N, Marik W, Michl M, Müller N, Zaic S, Harreiter J, Novak K, Wöber C, Pemp B. An interdisciplinary integrated specialized one-stop outpatient clinic for idiopathic intracranial hypertension-a comprehensive assessment of clinical outcome. Eur J Neurol 2024:e16401. [PMID: 39152571 DOI: 10.1111/ene.16401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/06/2024] [Accepted: 06/19/2024] [Indexed: 08/19/2024]
Abstract
BACKGROUND AND PURPOSE Management of idiopathic intracranial hypertension (IIH) is complex requiring multiple specialized disciplines. In practice, this creates considerable organizational and communicational challenges for healthcare professionals and patients. Thus, an interdisciplinary integrated outpatient clinic for IIH (comprising neurology, neuroophthalmology, neuroradiology, neurosurgery and endocrinology) was established with central coordination and a one-stop concept. Here, the aim was to evaluate the effects of this one-stop concept on objective clinical outcome. METHODS In a retrospective cohort study, the one-stop era with integrated care (IC) (1 July 2021 to 31 December 2022) was compared to a reference group receiving standard care (SC) (1 July 2018 to 31 December 2019) regarding visual impairment/worsening and headache improvement/freedom 6 months after diagnosis. Multivariate binary logistic regression models were used to adjust for confounders. RESULTS Baseline characteristics of the IC group (n = 85) and SC group (n = 81) were comparable (female 90.6% vs. 90.1%; mean age 33.6 vs. 32.8 years; median body mass index 31.8 vs. 33.0; median cerebrospinal fluid opening pressure 32 vs. 34 cmH2O; at diagnosis, visual impairment was present in 71.8% vs. 69.1% and chronic headache in 55.3% vs. 56.8% in IC vs. SC). IC was associated with a higher likelihood of achieving both headache improvement (odds ratio [OR] 2.24, 95% confidence interval [CI] 1.52-4.33, p < 0.001) and headache freedom (OR 1.75, 95% CI 1.11-3.09, p = 0.031). Regarding the risk of visual impairment and visual worsening IC was superior numerically but not statistically significantly (OR 0.87, 95% CI 0.69-1.16, p = 0.231, and OR 0.67, 95% CI 0.41-1.25, p = 0.354). CONCLUSIONS Interdisciplinary integrated care of IIH is favourably associated with headache outcomes and potentially also visual outcomes.
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Affiliation(s)
- Gabriel Bsteh
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Stefan Macher
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Nik Krajnc
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Marik
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
- Department of Neuroradiology, Medical University of Vienna, Vienna, Austria
| | - Martin Michl
- Department of Ophthalmology, Medical University of Vienna, Vienna, Austria
| | - Nina Müller
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Sina Zaic
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Jürgen Harreiter
- Division of Endocrinology, Department of Internal Medicine, Medical University of Vienna, Vienna, Austria
| | - Klaus Novak
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Christian Wöber
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Centre for Clinical Neurosciences and Mental Health, Medical University of Vienna, Vienna, Austria
| | - Berthold Pemp
- Department of Ophthalmology, Medical University of Vienna, Vienna, Austria
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Zhou C, Zhou Y, Liu L, Jiang H, Wei H, Zhou C, Ji X. Progress and recognition of idiopathic intracranial hypertension: A narrative review. CNS Neurosci Ther 2024; 30:e14895. [PMID: 39097911 PMCID: PMC11298205 DOI: 10.1111/cns.14895] [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: 02/11/2024] [Revised: 06/03/2024] [Accepted: 07/19/2024] [Indexed: 08/06/2024] Open
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) mainly affects obese young women, causing elevated intracranial pressure, headaches, and papilledema, risking vision loss and severe headaches. Despite weight loss as the primary treatment, the underlying mechanisms remain unclear. Recent research explores novel therapeutic targets. AIMS This review aimed to provide a comprehensive understanding of IIH's pathophysiology and clinical features to inform pathogenesis and improve treatment strategies. METHODS Recent publications on IIH were searched and summarized using PubMed, Web of Science, and MEDLINE. RESULTS The review highlights potential pathomechanisms and therapeutic advances in IIH. CONCLUSION IIH incidence is rising, with growing evidence linking it to metabolic and hormonal disturbances. Early diagnosis and treatment remain challenging.
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Affiliation(s)
- Chenxia Zhou
- Department of NeurologyXuanwu Hospital, Capital Medical UniversityBeijingChina
- Neurology and Intracranial Hypertension and Cerebral Venous Disease CenterNational Health Commission of China, Xuanwu Hospital, Capital Medical UniversityBeijingChina
| | - Yifan Zhou
- Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersBeijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data‐based Precision Medicine, Capital Medical UniversityBeijingChina
| | - Lu Liu
- Department of NeurologyXuanwu Hospital, Capital Medical UniversityBeijingChina
- Neurology and Intracranial Hypertension and Cerebral Venous Disease CenterNational Health Commission of China, Xuanwu Hospital, Capital Medical UniversityBeijingChina
- Zhongguancun Xirui Institute of Precision Medicine for Heart and Brain TumorsBeijingChina
| | - Huimin Jiang
- Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersBeijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data‐based Precision Medicine, Capital Medical UniversityBeijingChina
| | - Huimin Wei
- Beijing Advanced Innovation Center for Big Data‐Based Precision MedicineSchool of Biological Science and Medical Engineering, Beihang UniversityBeijingChina
| | - Chen Zhou
- Neurology and Intracranial Hypertension and Cerebral Venous Disease CenterNational Health Commission of China, Xuanwu Hospital, Capital Medical UniversityBeijingChina
- Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersBeijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data‐based Precision Medicine, Capital Medical UniversityBeijingChina
| | - Xunming Ji
- Neurology and Intracranial Hypertension and Cerebral Venous Disease CenterNational Health Commission of China, Xuanwu Hospital, Capital Medical UniversityBeijingChina
- Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersBeijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data‐based Precision Medicine, Capital Medical UniversityBeijingChina
- Department of NeurosurgeryXuanwu Hospital, Capital Medical UniversityBeijingChina
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Qiao Y, Chen Y, Wang Q, Liu J, Guo X, Gu Q, Ding P, Zhang H, Mei H. Safety profiles of doxycycline, minocycline, and tigecycline in pediatric patients: a real-world pharmacovigilance analysis based on the FAERS database. Front Pharmacol 2024; 15:1413944. [PMID: 39135789 PMCID: PMC11317777 DOI: 10.3389/fphar.2024.1413944] [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: 04/08/2024] [Accepted: 06/25/2024] [Indexed: 08/15/2024] Open
Abstract
Introduction Recently, the rise of antibiotic resistance has prompted a reconsideration of tetracyclines. However, existing studies are inadequate in assessing the pediatric safety of this class of antibiotics. To address the gap, our study aims to comprehensively assess the safety of tetracyclines in children. Methods Adverse event (AE) reports from January 2005 to September 2023 were obtained from the U.S. Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) database, and reporting odds ratio (ROR) was performed to identify potential risk signals in children under 18 years old who were administered any of the three tetracyclines: doxycycline, minocycline, and tigecycline. Results A total of 1903 AE cases were included in our study: 782 for doxycycline, 981 for minocycline, and 140 for tigecycline. Doxycycline and tigecycline were predominantly associated with "general disorders and administration site conditions" and "gastrointestinal disorders," while minocycline was more frequently linked to "skin and subcutaneous tissue disorders" and "gastrointestinal disorders." Psychiatric risks predominantly included depression, suicidal ideation, and suicide attempt. In the category of skin and subcutaneous tissues, 30.88% of the minocycline-induced drug reaction with eosinophilia and systemic symptoms (DRESS) cases resulted in death, alongside a high occurrence of co-occurring AEs such as multiple organ dysfunction syndrome, Type 1 Diabetes Mellitus (T1DM), and autoimmune thyroiditis. As for the endocrine system, both doxycycline and minocycline were found to potentially increase the risk of thyroid dysfunction. For children under the age of 8, doxycycline was associated with tooth discoloration (N = 7, ROR = 20.11%, 95% CI: 9.48-42.67), although it remained unclear whether the discoloration was permanent. Conclusion Our findings indicated that for pediatric patients, the majority of results were in line with the prescribing information and previous studies, and minocycline tended to cause more frequent and severe AEs than doxycycline. However, it is noteworthy that exceptions were found for psychiatric disorders and thyroid dysfunction associated with doxycycline, which are not mentioned in its FDA prescribing information. Additionally, further safety studies on tigecycline are still needed for children. When prescribing tetracyclines to pediatric patients, a careful risk-benefit assessment is crucial.
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Affiliation(s)
- Yanli Qiao
- Department of Pharmacy, Nanjing Drum Tower Hospital, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Yechao Chen
- Department of Pharmacy, Nanjing Drum Tower Hospital, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Qiaoyun Wang
- Department of Pharmacy, Nanjing Drum Tower Hospital, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Jingrui Liu
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Xiaohui Guo
- Department of Pharmacy, Nanjing Drum Tower Hospital, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Qiaoling Gu
- Department of Pharmacy, Nanjing Drum Tower Hospital, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Peng Ding
- Department of Pharmacy, Nanjing Drum Tower Hospital, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Haixia Zhang
- School of Pharmacy, Faculty of Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Hongliang Mei
- Department of Pharmacy, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
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Grech O, Mitchell JL, Lyons HS, Yiangou A, Thaller M, Tsermoulas G, Brock K, Mollan SP, Sinclair AJ. Effect of glucagon like peptide-1 receptor agonist exenatide, used as an intracranial pressure lowering agent, on cognition in Idiopathic Intracranial Hypertension. Eye (Lond) 2024; 38:1374-1379. [PMID: 38212401 PMCID: PMC11076535 DOI: 10.1038/s41433-023-02908-y] [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: 08/11/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 01/13/2024] Open
Abstract
BACKGROUND Cognitive function can be affected in conditions with raised intracranial pressure (ICP) such as idiopathic intracranial hypertension (IIH). Drugs used off label to treat raised ICP also have cognitive side effects, underscoring the unmet need for effective therapeutics which reduce ICP without worsening cognition. The Glucagon Like Peptide-1 (GLP-1) receptor agonist, exenatide, has been shown to significantly reduce ICP in IIH, therefore this study aimed to determine the effects of exenatide on cognition in IIH. METHODS This was an exploratory study of the IIH:Pressure trial (ISTCRN 12678718). Women with IIH and telemetric ICP monitors (n = 15) were treated with exenatide (n = 7) or placebo (n = 8) for 12 weeks. Cognitive function was tested using the National Institute of Health Toolbox Cognitive Battery at baseline and 12 weeks. RESULTS Cognitive performance was impaired in fluid intelligence ((T-score of 50 = population mean), mean (SD) 37.20 (9.87)), attention (33.93 (7.15)) and executive function (38.07 (14.61)). After 12-weeks there was no evidence that exenatide compromised cognition (no differences between exenatide and placebo). Cognition improved in exenatide treated patients in fluid intelligence (baseline 38.4 (8.2), 12 weeks 52.9 (6.6), p = 0.0005), processing speed (baseline 43.7 (9.4), 12 weeks 58.4 (10.4), p = 0.0058) and episodic memory (baseline 49.4 (5.3), 12 weeks 62.1 (13.2), p = 0.0315). CONCLUSIONS In patients with raised ICP due to IIH, exenatide, a drug emerging as an ICP lowering agent, does not adversely impact cognition. This is encouraging and has potential to be relevant when considering prescribing choices to lower ICP.
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Affiliation(s)
- Olivia Grech
- 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
| | - James L Mitchell
- 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 2WB, UK
| | - Hannah S Lyons
- 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 2WB, UK
| | - Andreas Yiangou
- 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 2WB, UK
| | - Mark Thaller
- 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 2WB, UK
| | - Georgios Tsermoulas
- 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 Neurosurgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2WB, UK
| | - Kristian Brock
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, B15 2TT, UK
| | - Susan P Mollan
- 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
- Birmingham Neuro-Ophthalmology, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2WB, UK
| | - Alexandra J Sinclair
- 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 2WB, UK.
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5
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Yan JL, Kan WC, Kuo YH, Chen MY, Chen PY, Fu KH. Impact of metabolic syndrome on postoperative outcomes of transsphenoidal pituitary surgery: analysis of U.S. nationwide inpatient sample data 2005-2018. Front Endocrinol (Lausanne) 2024; 15:1235441. [PMID: 38590825 PMCID: PMC10999562 DOI: 10.3389/fendo.2024.1235441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 02/19/2024] [Indexed: 04/10/2024] Open
Abstract
Introduction Transsphenoidal surgery (TSS) is the preferred surgical method for most pituitary adenomas owing to high efficacy and low mortality. This study aimed to evaluate the influence of metabolic syndrome (MetS) on postoperative outcomes of TSS for pituitary adenoma. Methods This population-based, retrospective observational study extracted data of adults 20-79 y receiving TSS for pituitary adenoma from the US Nationwide Inpatient Sample (NIS) between 2005-2018. Primary outcomes were pituitary-related complications, poor outcomes (i.e., in-hospital mortality or unfavorable discharge), prolonged length of stay (LOS), and patient safety indicators (PSIs). Univariate and multivariate regressions were performed to determine the associations between study variables and outcomes. Results 19,076 patients (representing a 93,185 US in-patient population) were included, among which 2,109 (11.1%) patients had MetS. After adjustment, pre-existing MetS was not significantly associated with presence of pituitary-related complications and poor outcomes. In contrast, MetS was significantly associated with an increased risk for prolonged LOS (adjusted OR (aOR) = 1.19; 95% CI: 1.05-1.34), PSIs (aOR = 1.31; 95% CI: 1.07-1.59) and greater hospital costs (adjusted β = 8.63 thousand USD; 95% CI: 4.98-12.29). Among pituitary-related complications, MetS was independently associated with increased risk of cerebrospinal fluid (CSF) rhinorrhea (aOR = 1.22, 95% CI: 1.01, 1.47) but lowered diabetes insipidus (aOR = 0.83, 95% CI: 0.71, 0.97). Discussion MetS does not pose excessive risk of in-hospital mortality or unfavorable discharge. However, MetS independently predicted having PSIs, prolonged LOS, greater hospital costs, and CSF rhinorrhea. Study findings may help clinicians achieve better risk stratification before TSS.
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Affiliation(s)
- Jiun-Lin Yan
- Department of Neurosurgery, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wan-Chin Kan
- Department of Radiology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Yi-Hsien Kuo
- Department of Neurosurgery, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Mao-Yu Chen
- Department of Neurosurgery, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Pin-Yuan Chen
- Department of Neurosurgery, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Kuan-Hao Fu
- Department of Neurosurgery, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
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García-Ull J, González-García N, Torres-Ferrús M, García-Azorín D, Molina-Martínez IFJ, Beltrán-Blasco I, Santos-Lasaosa S, Latorre G, Gago-Veiga AB, Láinez JM, Porta-Etessam J, Nieves-Castellanos C, Mínguez-Olaondo A, López-Bravo A, Quintas S, Morollón N, Díaz-Insa S, Belvís R, Irimia P. Diagnosis and treatment of disorders of intracranial pressure: consensus statement of the Spanish Society of Neurology's Headache Study Group. Neurologia 2024:S2173-5808(24)00048-8. [PMID: 38431253 DOI: 10.1016/j.nrleng.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Primary intracranial pressure disorders include idiopathic intracranial hypertension and spontaneous intracranial hypotension. Remarkable advances have been made in the diagnosis and treatment of these 2entities in recent years. Therefore, the Spanish Society of Neurology's Headache Study Group (GECSEN) deemed it necessary to prepare this consensus statement, including diagnostic and therapeutic algorithms to facilitate and improve the management of these disorders in clinical practice. This document was created by a committee of experts belonging to GECSEN, and is based on a systematic review of the literature, incorporating the experience of the participants, and establishes practical recommendations with levels of evidence and grades of recommendation.
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Affiliation(s)
- J García-Ull
- Unidad de Cefaleas, Servicio de Neurología, Hospital Clínico Universitario de Valencia, Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain.
| | - N González-García
- Unidad de Cefaleas, Servicio de Neurología, Instituto de Investigación Sanitaria San Carlos, Hospital Clínico San Carlos, Madrid, Spain
| | - M Torres-Ferrús
- Unidad de Cefaleas, Servicio de Neurología, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - D García-Azorín
- Unidad de Cefaleas, Servicio de Neurología, Hospital Clínico Universitario de Valladolid, Spain
| | - I F J Molina-Martínez
- Servicio de Neurología, Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - I Beltrán-Blasco
- Unidad de Cefaleas, Servicio de Neurología, Hospital General Universitario Dr. Balmis de Alicante, Spain
| | - S Santos-Lasaosa
- Unidad de Cefaleas, Servicio de Neurología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - G Latorre
- Unidad de Cefaleas, Servicio de Neurología, Hospital Universitario de Fuenlabrada, Madrid, Spain
| | - A B Gago-Veiga
- Unidad de Cefaleas, Servicio de Neurología, Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Madrid, Spain
| | - J M Láinez
- Unidad de Cefaleas, Servicio de Neurología, Hospital Clínico Universitario de Valencia, Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
| | - J Porta-Etessam
- Unidad de Cefaleas, Servicio de Neurología, Instituto de Investigación Sanitaria San Carlos, Hospital Clínico San Carlos, Madrid, Spain; Departamento de Medicina, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - C Nieves-Castellanos
- Unidad de Cefaleas, Servicio de Neurología, Hospital Universitario y Politécnico la Fe, Instituto de Investigación Sanitaria la Fe, Valencia, Spain
| | - A Mínguez-Olaondo
- Servicio de Neurología, Hospital Universitario Donostia, Instituto de Investigación Biodonostia, Athenea Neuroclinicis, Donostia, Facultad de Ciencias de la Salud, Universidad de Deusto, Bilbao, Spain
| | - A López-Bravo
- Servicio de Neurología, Hospital Reina Sofía de Tudela, Navarra, Spain
| | - S Quintas
- Unidad de Cefaleas, Servicio de Neurología, Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Madrid, Spain
| | - N Morollón
- Unidas de Cefaleas, Servicio de Neurología, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - S Díaz-Insa
- Unidad de Cefaleas, Servicio de Neurología, Hospital Universitario y Politécnico la Fe, Instituto de Investigación Sanitaria la Fe, Valencia, Spain
| | - R Belvís
- Unidas de Cefaleas, Servicio de Neurología, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - P Irimia
- Unidad de Cefaleas, Servicio de Neurología, Clínica Universitaria de Navarra, Pamplona, Spain
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7
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Shaia JK, Markle J, Das N, Singh RP, Talcott KE, Cohen DA. Characterisation and Visual Outcomes of Fulminant Idiopathic Intracranial Hypertension: A Narrative Review. Neuroophthalmology 2024; 48:227-239. [PMID: 38933750 PMCID: PMC11197909 DOI: 10.1080/01658107.2023.2301358] [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] [Received: 10/06/2023] [Accepted: 12/18/2023] [Indexed: 06/28/2024] Open
Abstract
Fulminant idiopathic intracranial hypertension (IIH) is a rapid vision-degrading presentation of IIH with limited published studies. This study composed a narrative review of fulminant IIH with the aim of better characterising fulminant IIH presentation and visual outcomes. SCOPUS and PubMed were searched for papers referencing IIH, benign intracranial hypertension, or pseudotumour cerebri. Abstracts were screened for rapid degradation in vision. All studies were required to meet both the modified Dandy and fulminant IIH criteria. Thirty-six studies met the inclusion criteria. Demographics, treatments, and visual outcome data were collected. Case studies made up 69% of the studies and 31% were case series. In total, 72 patients with fulminant IIH were reported, of which 23.6% were paediatric and 96% were female. Surgical intervention occurred in 85% of patients. Anaemia was present in 11% of patients and 85.7% of paediatric patients had a sixth cranial nerve palsy. In conclusion, we propose the following practice guidelines to assist in diagnosing and treating fulminant IIH patients: 1) patients who present with optic disc oedema require urgent visual field testing to evaluate for vision loss; 2) a paediatric patient presenting with a sixth cranial nerve palsy should have a comprehensive eye examination; 3) fulminant IIH can occur in patients with a normal body mass index; and 4) anaemia should be tested for in the setting of fulminant IIH. As little is known about the optimal treatment mechanisms for this presentation, multi-institutional and international collaborations will be a critical step for future research.
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Affiliation(s)
- Jacqueline K. Shaia
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Center for Ophthalmic Bioinformatics Research at the Cole Eye Institute, Cleveland, Ohio, USA
| | - Jonathan Markle
- Center for Ophthalmic Bioinformatics Research at the Cole Eye Institute, Cleveland, Ohio, USA
| | - Nikhil Das
- Center for Ophthalmic Bioinformatics Research at the Cole Eye Institute, Cleveland, Ohio, USA
| | - Rishi P. Singh
- Center for Ophthalmic Bioinformatics Research at the Cole Eye Institute, Cleveland, Ohio, USA
- Cleveland Clinic Martin Hospitals, Cleveland, Ohio, USA
| | - Katherine E. Talcott
- Center for Ophthalmic Bioinformatics Research at the Cole Eye Institute, Cleveland, Ohio, USA
- Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Devon A. Cohen
- Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Schmill LPA, Peters S, Juhász J, Jansen O, Laudes M, Aludin S. MRI signs of intracranial hypertension in morbidly obese and normal-weight individuals. ROFO-FORTSCHR RONTG 2024; 196:176-185. [PMID: 37963551 DOI: 10.1055/a-2114-1919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
PURPOSE Idiopathic intracranial hypertension (IIH) is associated with intracranial abnormalities, although not obligatory, which can be detected with cranial MRI. Obesity is an important risk factor for IIH and a pathogenetic link is suspected but the extent to which these MRI signs are already related to obesity has not yet been examined. We investigated whether IIH-MRI signs are present more often in obese individuals with a BMI > 30 kg/m² than in individuals of normal weight. MATERIALS AND METHODS Brain MRI of 32 obese and 53 normal-weight participants from the Food-Chain-Plus cohort were analyzed for three main signs of IIH: (I) stenosis of the transverse sinus, (II) increased width of the optic nerve sheath, and (III) reduction of pituitary height. In addition, a scoring system for the MRI signs was applied. Furthermore, tortuosity of the optic nerve and flattening of the posterior globe were considered as additional MRI signs. RESULTS Obese participants had a significantly higher MRI score (p < 0.001) than those in the normal-weight cohort, with significant differences in quantitative measurements of cerebral venous sinus stenosis (p < 0.001), widening of the optic nerve sheath (p < 0.05), and flattening of the pituitary gland (p < 0.05) also always being observed more frequently and in a more pronounced manner in the obese group. Furthermore, our findings correlated significantly with BMI and proportionately with hip and waist circumference. CONCLUSION Obese individuals show a significantly higher prevalence of cerebral MRI signs related to IIH. This supports the hypothesis that obesity is a risk factor for possible intracranial hypertension and reinforces the suspicion that obesity is involved in the pathomechanism of IIH. KEY POINTS · Obesity is associated with changes such as those seen in IIH.. · BMI, weight, and body measurements correlate with the expression of MRI signs of IIH.. · To prevent IIH symptoms in obesity, the pathomechanism must be further clarified..
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Affiliation(s)
| | - Sönke Peters
- Clinic for Radiology and Neuroradiology, University Hospital Schleswig-Holstein - Campus Kiel, Germany
| | - Julia Juhász
- Clinic for Radiology and Neuroradiology, University Hospital Schleswig-Holstein - Campus Kiel, Germany
| | - Olav Jansen
- Clinic for Radiology and Neuroradiology, University Hospital Schleswig-Holstein - Campus Kiel, Germany
| | - Matthias Laudes
- Institute of Diabetes and Clinical Metabolic Research; Division of Endocrinology, Diabetes and Clinical Nutrition, Department of Medicine 1, University Hospital Schleswig-Holstein - Campus Kiel, Germany
| | - Schekeb Aludin
- Clinic for Radiology and Neuroradiology, University Hospital Schleswig-Holstein - Campus Kiel, Germany
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9
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Wardman JH, Andreassen SN, Toft-Bertelsen TL, Jensen MN, Wilhjelm JE, Styrishave B, Hamann S, Heegaard S, Sinclair AJ, MacAulay N. CSF hyperdynamics in rats mimicking the obesity and androgen excess characteristic of patients with idiopathic intracranial hypertension. Fluids Barriers CNS 2024; 21:10. [PMID: 38273331 PMCID: PMC10810013 DOI: 10.1186/s12987-024-00511-1] [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: 10/20/2023] [Accepted: 01/05/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) is a syndrome exhibiting elevated intracranial pressure (ICP), visual disturbances, and severe headache. IIH primarily affects young obese women, though it can occur in individuals of any age, BMI, and sex. IIH is characterized by systemic metabolic dysregulation with a profile of increased androgen hormones. However, the contribution of obesity/hormonal perturbations to cerebrospinal fluid (CSF) dynamics remains unresolved. METHODS We employed obese female Zucker rats and adjuvant testosterone to reveal IIH causal drivers. ICP and CSF dynamics were determined with in vivo experimentation and magnetic resonance imaging, testosterone levels assessed with mass spectrometry, and choroid plexus function revealed with transcriptomics. RESULTS Obese rats had undisturbed CSF testosterone levels and no changes in ICP or CSF dynamics. Adjuvant testosterone treatment of obese rats elevated the CSF secretion rate, although with no effect on the ICP, due to elevated CSF drainage capacity of these rats. CONCLUSIONS Obesity in itself therefore does not suffice to recapitulate the IIH symptoms in rats, but modulation of CSF dynamics appears with adjuvant testosterone treatment, which mimics the androgen excess observed in female IIH patients. Obesity-induced androgen dysregulation may thus contribute to the disease mechanism of IIH and could potentially serve as a future therapeutic target.
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Affiliation(s)
- Jonathan H Wardman
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Søren Norge Andreassen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Trine L Toft-Bertelsen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Mette Nyholm Jensen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Jens E Wilhjelm
- Department of Neurophysiology, Rigshospitalet, Copenhagen, Denmark
- Department of Health Technology, Technical University of Denmark, Copenhagen, Denmark
| | - Bjarne Styrishave
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Steffen Hamann
- Department of Ophthalmology, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Steffen Heegaard
- Department of Ophthalmology, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Alexandra J Sinclair
- Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Nanna MacAulay
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark.
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10
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Dinkin MJ, Patsalides A. Idiopathic Intracranial Venous Hypertension: Toward a Better Understanding of Venous Stenosis and the Role of Stenting in Idiopathic Intracranial Hypertension. J Neuroophthalmol 2023; 43:451-463. [PMID: 37410913 DOI: 10.1097/wno.0000000000001898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
BACKGROUND Venous sinus stenosis, typically at the junction of the transverse and sigmoid sinus, is increasingly recognized as a contributor to the pathophysiology of idiopathic intracranial hypertension (IIH), whether it be the intrinsic type that does not reverse with normalization of intracranial pressure or the extrinsic type, which does. Efforts to treat the stenosis and reduce the associated transstenotic gradient through placement of a stent at the site of stenosis have been studied over the past 2 decades, primarily through retrospective studies, with variable emphasis on formal visual testing and direct assessment of poststent opening pressure. Most studies have presented evidence for utilization of stenting as an alternative to cerebrospinal fluid shunting or optic nerve sheath fenestration in patients with IIH who harbor the stenosis and are refractory to or intolerant of intracranial pressure-lowering medications, but an assessment of the current data is needed to better understand the role of stenting for this patient population. EVIDENCE ACQUISITION A search in PubMed was made for "IIH," "papilledema," and "venous stenting." Data pre and post stenting, including symptoms attributable to IIH, intracranial pressure, papilledema, retinal nerve fiber layer thickening on optical coherence tomography, and visual field assessment (mean deviation), were collected. Need for retreatment and complications were assessed among all studies. Studies using stenting for special circumstances, such as cerebrospinal leaks or for stenosis along anomalous vessels, were reviewed. RESULTS In total, 49 studies (45 retrospective and 4 prospective) and 18 case reports (with 3 or less patients) were found and included in the analysis, for a total of 1,626 patients. In 250 patients in whom poststent intracranial pressure was measured, the mean value was 19.7 cm H 2 O, reduced from a mean of 33 cm H 2 O. Transient visual obscurations resolved in 79.6% of 201 patients who complained of it, pulsatile tinnitus resolved in 84.7% of 515, diplopia resolved in 93% of 86 patients, and nonspecific visual symptoms such as "blurry vision" improved in 76.2% of 537 patients. Headaches resolved in 36% and improved in a further 40.7% of 1,105 patients in whom they were documented before stenting. Of 1,116 with papilledema, 40.8% demonstrated resolution and 38.2% improvement. The mean retinal nerve fiber layer thickness improved from 170.2 µm to 89.2 µm among 402 eyes in which optical coherence tomography was used to measure it. Among 135 eyes in which formal visual fields were performed pre and post stenting, the prestent average mean deviation of -7.35 dB improved to -4.72 dB after stenting. Complications associated with stenting included in-stent stenosis or thrombosis, subdural hematoma, intracerebral hematoma, cerebral edema, stent migration, and death. A recurrence of symptoms requiring a follow-up surgical intervention occurred in 9%. CONCLUSIONS A growing body of evidence supports the use of venous sinus stenting as a viable option for medically refractory IIH, especially when papilledema threatens visual function. Complication and failure rates seem to be similar to alternative surgical approaches, although serious neurological sequalae can rarely occur. Emerging studies evaluating stent type, including novel stents designed for use in the venous system, may help improve ease of the procedure and long-term success rates. Prospective head-to-head studies are needed to better understand the performance of stenting compared with other interventions.
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Affiliation(s)
- Marc J Dinkin
- Department of Ophthalmology and Neurology (MJD), Weill Cornell Medicine, New York Presbyterian Hospital, New York, NY; and Department of Neurosurgery (AP), North Shore University Hospital, Northwell Health, Great Neck, NY
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11
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Yiangou A, Mollan SP, Sinclair AJ. Idiopathic intracranial hypertension: a step change in understanding the disease mechanisms. Nat Rev Neurol 2023; 19:769-785. [PMID: 37957260 DOI: 10.1038/s41582-023-00893-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2023] [Indexed: 11/15/2023]
Abstract
The understanding of idiopathic intracranial hypertension (IIH) has evolved over the past few years. Previously, IIH was considered a disease exclusively affecting the neuro-ophthalmic axis, characterized by raised intracranial pressure, headache and papilloedema, and resulting in the risk of severe and permanent visual loss and life-changing disabling headaches. Recent advances have begun to redefine IIH as a probable metabolic disease involving a range of systemic manifestations. More than 95% of individuals affected by the disease are women of reproductive age with obesity. The incidence is rapidly rising and parallels the escalating worldwide obesity rates. Contemporary insights identify associations with insulin resistance, type 2 diabetes and a twofold increased risk of cardiovascular disease in excess of that driven by obesity alone. Adipose distribution in people with IIH, like that in other metabolic diseases, is preferentially centripetal and is associated with changes in intracranial pressure. Evidence now demonstrates adipose tissue dysfunction in people with IIH, involving transcriptional and metabolic priming for lipogenesis and weight gain. Hormonal perturbations are also observed, including a unique phenotype of androgen excess that promotes cerebrospinal fluid secretion. Knowledge of these additional disease features is driving research into novel therapeutic targets and altering the approach to multidisciplinary care.
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Affiliation(s)
- Andreas Yiangou
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Susan P Mollan
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Birmingham Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Alexandra J Sinclair
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.
- Department of Neurology, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK.
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12
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Yiangou A, Weaver SRC, Thaller M, Mitchell JL, Lyons HS, Tsermoulas G, Mollan SP, Lucas SJE, Sinclair AJ. The Impact of Valsalva Manoeuvres and Exercise on Intracranial Pressure and Cerebrovascular Dynamics in Idiopathic Intracranial Hypertension. Neuroophthalmology 2023; 48:122-133. [PMID: 38487358 PMCID: PMC10936629 DOI: 10.1080/01658107.2023.2281433] [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: 08/01/2023] [Accepted: 10/30/2023] [Indexed: 03/17/2024] Open
Abstract
Idiopathic intracranial hypertension (IIH) is a disease characterised by elevated intracranial pressure (ICP). The impact of straining and exercise on ICP regulation is poorly understood yet clinically relevant to IIH patient care. We sought to investigate the impact of Valsalva manoeuvres (VMs) and exercise on ICP and cerebrovascular haemodynamics in IIH. People with IIH were prospectively enrolled and had an intraparenchymal telemetric ICP sensor inserted. Three participants (age [mean ± standard deviation]: 40.3 ± 13.9 years) underwent continuous real-time ICP monitoring coupled with cerebrovascular haemodynamic assessments during VMs and moderate exercise. Participants had IIH with supine ICP measuring 15.3 ± 8.7 mmHg (20.8 ± 11.8 cm cerebrospinal fluid (CSF)) and sitting ICP measuring -4.2 ± 7.9 mmHg (-5.7 ± 10.7 cmCSF). During phase I of a VM ICP increased by 29.4 ± 13.5 mmHg (40.0 ± 18.4 cmCSF) but returned to baseline within 16 seconds from VM onset. The pattern of ICP changes during the VM phases was associated to that of changes in blood pressure, the middle cerebral artery blood velocity and prefrontal cortex haemodynamics. Exercise led to minimal effects on ICP. In conclusion, VM-induced changes in ICP were coupled to cerebrovascular haemodynamics and showed no sustained impact on ICP. Exercise did not lead to prolonged elevation of ICP. Those with IIH experiencing VMs (for example, during exercise and labour) may be reassured at the brief nature of the changes. Future research must look to corroborate the findings in a larger IIH cohort.
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Affiliation(s)
- Andreas Yiangou
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Samuel R. C. Weaver
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
- Centre for Human Brain Health, University of Birmingham, Birmingham, UK
| | - Mark Thaller
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - James L. Mitchell
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- Academic Department of Military Rehabilitation, Defense Medical Rehabilitation Centre, Stanford Hall, UK
| | - Hannah S. Lyons
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Georgios Tsermoulas
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Susan P. Mollan
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Samuel J. E. Lucas
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
- Centre for Human Brain Health, University of Birmingham, Birmingham, UK
| | - Alexandra J. Sinclair
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
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13
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Piccus R, Thaller M, Sinclair AJ, Mollan SP. Current and emerging diagnostic and management approaches for idiopathic intracranial hypertension. Expert Rev Neurother 2023; 23:457-466. [PMID: 37114519 DOI: 10.1080/14737175.2023.2206567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
INTRODUCTION Idiopathic intracranial hypertension is characterized by raised intracranial pressure that triggers disabling headaches and can cause permanent visual loss. There is an increased incidence and prevalence of the condition linked to location-specific obesity rates. There are no licensed treatments for the condition. The majority of approaches to managing the disease prioritize resolution of papilledema. However, evidence is emerging that idiopathic intracranial hypertension is a systemic metabolic disease. AREAS COVERED The aim of this review is to present the emerging pathophysiology evidence which is leading to novel targeted therapeutics. The diagnostic pathway is outlined. The current and potential management approaches for idiopathic intracranial hypertension are also discussed. EXPERT OPINION Idiopathic intracranial hypertension is a condition with metabolic dysregulation with systemic manifestations that are present over and above what can be expl.ained by obesity alone. While most of the current management of this condition focuses on the eyes, future management needs to address the disabling headaches and the systemic risks of preeclampsia, gestational diabetes, and major cardiovascular events.
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Affiliation(s)
- Ravi Piccus
- Medical school, University of Birmingham, Birmingham, UK
| | - Mark Thaller
- Translational Brain Science, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Alexandra J Sinclair
- Translational Brain Science, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Susan P Mollan
- Translational Brain Science, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Birmingham Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
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14
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Thaller M, Homer V, Mollan SP, Sinclair AJ. Disease Course and Long-term Outcomes in Pregnant Women With Idiopathic Intracranial Hypertension: The IIH Prospective Maternal Health Study. Neurology 2023; 100:e1598-e1610. [PMID: 36750388 PMCID: PMC10103118 DOI: 10.1212/wnl.0000000000206854] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/07/2022] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Idiopathic intracranial hypertension (IIH) most typically occurs in women of childbearing age with increased weight as a key risk factor for development or exacerbation of the disease. Pregnancy is common in this group of patients. The longer-term effect of pregnancy on IIH has not been established and was the aim of this study. METHODS A prospective cohort study (IIH Life) recruited consecutive patients with IIH between 2012 and 2021 and evaluated outcomes including vision (logarithm of the minimum angle of resolution visual acuity, Humphrey visual field perimetric mean deviation, and optical coherence tomography [OCT] imaging) and headache. Four cohorts were evaluated: those with IIH diagnosed for the first time while pregnant, those with established IIH who became pregnant, those with a pregnancy prior to their diagnosis of IIH, and those with IIH who never became pregnant. RESULTS Three hundred seventy-seven people with IIH agreed to participate in the IIH Life maternal health study. Mean follow-up was 17.5 months (SD 20.5). IIH diagnosed in pregnancy was rare. Patients diagnosed with IIH while pregnant had greater papilledema (mean OCT total retinal thickness +11.59 µm/mo [95% CI 1.25-21.93]), although they had comparable visual field and acuity measures compared with those with established IIH who became pregnant during their disease course (-1.2 µm/mo [95% CI -2.6 to 0.21]). In those with established IIH, pregnancy did not adversely affect visual or headache outcomes over time, and the trajectory was akin to those with IIH who never had a pregnancy. Headache outcomes showed variability reflecting the IIH cohort as a whole. DISCUSSION A diagnosis of IIH while pregnant was rare but associated with more severe papilledema. Long-term visual outcomes in IIH were analogous irrespective of the timing of the pregnancy. These data are reassuring; however, close vigilance of IIH clinical features during pregnancy is recommended.
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Affiliation(s)
- Mark Thaller
- From the Translational Brain Science (M.T., S.P.M., A.J.S.), Institute of Metabolism and Systems Research, and Cancer Research (UK) Clinical Trials Unit (V.H.), University of Birmingham; Department of Neurology (M.T., A.J.S.) and Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust; Centre for Endocrinology (M.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners, UK
| | - Victoria Homer
- From the Translational Brain Science (M.T., S.P.M., A.J.S.), Institute of Metabolism and Systems Research, and Cancer Research (UK) Clinical Trials Unit (V.H.), University of Birmingham; Department of Neurology (M.T., A.J.S.) and Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust; Centre for Endocrinology (M.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners, UK
| | - Susan P Mollan
- From the Translational Brain Science (M.T., S.P.M., A.J.S.), Institute of Metabolism and Systems Research, and Cancer Research (UK) Clinical Trials Unit (V.H.), University of Birmingham; Department of Neurology (M.T., A.J.S.) and Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust; Centre for Endocrinology (M.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners, UK
| | - Alexandra Jean Sinclair
- From the Translational Brain Science (M.T., S.P.M., A.J.S.), Institute of Metabolism and Systems Research, and Cancer Research (UK) Clinical Trials Unit (V.H.), University of Birmingham; Department of Neurology (M.T., A.J.S.) and Birmingham Neuro-Ophthalmology (S.P.M.), University Hospitals Birmingham NHS Foundation Trust; Centre for Endocrinology (M.T., A.J.S.), Diabetes and Metabolism, Birmingham Health Partners, UK.
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15
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Mollan SP, Subramanian A, Perrins M, Nirantharakumar K, Adderley NJ, Sinclair AJ. Depression and anxiety in women with idiopathic intracranial hypertension compared to migraine: A matched controlled cohort study. Headache 2023; 63:290-298. [PMID: 36748660 PMCID: PMC10952318 DOI: 10.1111/head.14465] [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: 06/23/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To evaluate mental health burden in women with idiopathic intracranial hypertension (IIH) compared to matched women with migraine and population controls. BACKGROUND Depression and anxiety are recognized comorbid conditions in those with IIH and lead to worse predicted medical outcomes. The mental health burden in IIH has not been previously evaluated in a large, matched cohort study. METHODS We performed a population-based matched, retrospective cohort study to explore mental health outcomes (depression and anxiety). We used data from IQVIA Medical Research Data, an anonymized, nationally representative primary care electronic medical records database in the United Kingdom, from January 1, 1995, to September 25, 2019. Women aged ≥16 years were eligible for inclusion. Women with IIH (exposure) were matched by age and body mass index with up to 10 control women without IIH but with migraine (migraine controls), and without IIH or migraine (population controls). RESULTS A total of 3411 women with IIH, 30,879 migraine controls and 33,495 population controls were included. Of these, 237, 2372 and 1695 women with IIH, migraine controls and population controls, respectively, developed depression during follow-up, and 179, 1826 and 1197, respectively, developed anxiety. There was a greater hazard of depression and anxiety in IIH compared to population controls (adjusted hazard ratio [aHR] 1.38, 95% confidence interval [CI] 1.20-1.58; and aHR 1.40, 95% CI 1.19-1.64, respectively), while hazards were similar to migraine controls (aHR 0.98, 95% CI 0.86-1.13; and aHR 0.98, 95% CI 0.83-1.14, respectively). CONCLUSION Depression and anxiety burden in women with IIH is higher than in the general population, and comparable to that in matched women with migraine. This may indicate that presence of headache is a potential driver for comorbid depression and anxiety in IIH.
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Affiliation(s)
- Susan P. Mollan
- Translational Brain Science, Institute of Metabolism and Systems ResearchUniversity of BirminghamBirminghamUK
- Health Data Research UKBirminghamUK
- Birmingham Neuro‐OphthalmologyQueen Elizabeth HospitalBirminghamUK
| | | | - Mary Perrins
- Institute of Applied Health ResearchUniversity of BirminghamBirminghamUK
| | | | - Nicola J. Adderley
- Institute of Applied Health ResearchUniversity of BirminghamBirminghamUK
| | - Alexandra J. Sinclair
- Translational Brain Science, Institute of Metabolism and Systems ResearchUniversity of BirminghamBirminghamUK
- Birmingham Neuro‐OphthalmologyQueen Elizabeth HospitalBirminghamUK
- Department of NeurologyUniversity Hospitals Birmingham, Queen Elizabeth HospitalBirminghamUK
- Centre for Endocrinology, Diabetes, and MetabolismBirmingham Health PartnersBirminghamUK
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16
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Kamboj A, Brown MM, Abel AS. Intracranial Hypertension Associated With Testosterone Therapy In Female-To-Male Transgender Patients: A Case Report And Literature Review. Semin Ophthalmol 2023:1-6. [PMID: 36658742 DOI: 10.1080/08820538.2023.2169578] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We highlight a case of intracranial hypertension secondary to exogenous testosterone in a female-to-male transgender patient and present a systematic review of similar cases. Our review identified 19 female-to-male transgender individuals with intracranial hypertension. The mean age was 24.2 years and most common presenting symptom was headache (78.9% of patients). The most frequently associated ocular symptoms were transient visual obscurations (42.1%) and blurred vision (21.1%). Onset of symptoms occurred concurrently with exogenous testosterone therapy in 89.5% of the patients. The most common treatments were acetazolamide (89.5%), topiramate (31.6%), and alteration in hormone regimen (21.1%); four cases required surgery. These findings aid clinicians treating intracranial hypertension in patients undergoing gender affirmation therapy in a conscientious, patient-centered manner.
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Affiliation(s)
- Alisha Kamboj
- Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, USA
| | - Meghan M Brown
- Department of Ophthalmology, Hennepin Healthcare, Minneapolis, MN, USA
| | - Anne S Abel
- Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, USA.,Department of Ophthalmology, Hennepin Healthcare, Minneapolis, MN, USA
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17
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Lyons HS, Mollan SLP, Liu GT, Bowman R, Thaller M, Sinclair AJ, Mollan SP. Different Characteristics of Pre-Pubertal and Post-Pubertal Idiopathic Intracranial Hypertension: A Narrative Review. Neuroophthalmology 2022; 47:63-74. [PMID: 36891406 PMCID: PMC9988343 DOI: 10.1080/01658107.2022.2153874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/10/2022] [Accepted: 11/20/2022] [Indexed: 12/23/2022] Open
Abstract
Idiopathic intracranial hypertension (IIH) affects both children and adults. There are currently no clinical trials in IIH for those who are adolescents or children. The aims of this narrative review were to characterise the differences between pre- and post-pubertal IIH and to highlight the need to be more inclusive in clinical trial planning and recruitment. A detailed search of the scientific literature was performed using the PubMed database, from inception until 30 May 2022 using keywords. This included English language papers only. The abstracts and full texts were reviewed by two independent assessors. The literature revealed that the pre-pubertal group had a more variable presentation. The presenting features in the post-pubertal paediatric group were more akin to adults with headache as the dominant feature. They were also more likely to be female and have an increased body mass index. A clear limitation of the literature was that a number of paediatric studies had variable inclusion criteria, including secondary causes of raised intracranial pressure. Pre-pubertal children do not display the same predilection towards the female sex and obesity as post-pubertal children, who have a similar phenotype to the adult cohort. Inclusion of adolescents in clinical trials should be considered given the similar phenotype to adults. There is a lack of consistency in the definition of puberty, making the IIH literature difficult to compare. Inclusion of secondary causes of raised intracranial pressure has the potential to confound the accuracy of analysis and interpretation of the results.
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Affiliation(s)
- Hannah S. Lyons
- Translational Brain Science, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | | | - Grant T. Liu
- Children's Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Richard Bowman
- Ophthalmology Department, Great Ormond Street Children’s Hospital, London, UK
| | - Mark Thaller
- Translational Brain Science, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Alexandra J. Sinclair
- Translational Brain Science, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Susan P. Mollan
- Translational Brain Science, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Birmingham Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
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18
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Kassubek R, Weinstock D, Behler A, Müller HP, Dupuis L, Kassubek J, Ludolph AC. Morphological alterations of the hypothalamus in idiopathic intracranial hypertension. Ther Adv Chronic Dis 2022; 13:20406223221141354. [PMID: 36479140 PMCID: PMC9720803 DOI: 10.1177/20406223221141354] [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: 05/20/2022] [Accepted: 11/07/2022] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND The pathophysiology of idiopathic intracranial hypertension (IIH), a condition characterized by raised intracranial pressure, is not well understood. OBJECTIVES We hypothesized that the hypothalamus might exhibit alterations in patients with IIH, based on its established association with obesity and the potential role of hormonal and metabolic factors in IIH. DESIGN Retrospective single-center cohort study. METHODS Thirty-three individuals with IIH and 40 matched healthy individuals were studied, including levels of the hormones and proteins leptin, adiponectin, ghrelin, insulin, growth/differentiation factor 15 (GDF15), somatostatin, and melatonin. In vivo high-resolution T1-weighted magnetic resonance imaging (MRI) data were analyzed by quantification of hypothalamic volumes using a well-established segmentation method, separate for the anterior and the posterior hypothalamic subvolumes. An additional analysis was performed using age, gender, and BMI-matched subgroups of 20 IIH patients and 20 controls. RESULTS The analysis of laboratory values showed significantly increased insulin, leptin, and melatonin levels for IIH patients in comparison to controls, while adiponectin levels were decreased in IIH; however, only melatonin level differences could be confirmed in the analysis with BMI matching. There was no statistical difference in total hypothalamus volumes between IIH and controls, but the hypothalamic morphology was altered in IIH patients with a lower volume of the anterior part of the hypothalamus and a higher volume of the posterior part; these results were identical in the analysis of the BMI-matched groups. The correlation analyses between hormonal changes and hypothalamic morphology did not achieve significant results. CONCLUSION In this exploratory study, morphological abnormalities of the hypothalamus were observed to be associated with the IIH complex, although the mechanism remains to be unraveled. These findings expand the metabolic phenotype of IIH, but further functional studies are necessary to corroborate these data.
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Affiliation(s)
- Rebecca Kassubek
- Department of Neurology, University of Ulm,
Oberer Eselsberg 45, 89081 Ulm, Germany
| | | | - Anna Behler
- Department of Neurology, University of Ulm,
Ulm, Germany
| | | | - Luc Dupuis
- Université de Strasbourg, INSERM, Mécanismes
centraux et périphériques de la neurodégénérescence, Strasbourg,
France
| | - Jan Kassubek
- Department of Neurology, University of Ulm,
Ulm, Germany; German Center for Neurodegenerative Diseases (DZNE), Ulm,
Germany
| | - Albert C. Ludolph
- Department of Neurology, University of Ulm,
Ulm, Germany; German Center for Neurodegenerative Diseases (DZNE), Ulm,
Germany
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19
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Kopp KO, Glotfelty EJ, Li Y, Greig NH. Glucagon-like peptide-1 (GLP-1) receptor agonists and neuroinflammation: Implications for neurodegenerative disease treatment. Pharmacol Res 2022; 186:106550. [PMID: 36372278 PMCID: PMC9712272 DOI: 10.1016/j.phrs.2022.106550] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/13/2022]
Abstract
Chronic, excessive neuroinflammation is a key feature of neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD). However, neuroinflammatory pathways have yet to be effectively targeted in clinical treatments for such diseases. Interestingly, increased inflammation and neurodegenerative disease risk have been associated with type 2 diabetes mellitus (T2DM) and insulin resistance (IR), suggesting that treatments that mitigate T2DM pathology may be successful in treating neuroinflammatory and neurodegenerative pathology as well. Glucagon-like peptide-1 (GLP-1) is an incretin hormone that promotes healthy insulin signaling, regulates blood sugar levels, and suppresses appetite. Consequently, numerous GLP-1 receptor (GLP-1R) stimulating drugs have been developed and approved by the US Food and Drug Administration (FDA) and related global regulatory authorities for the treatment of T2DM. Furthermore, GLP-1R stimulating drugs have been associated with anti-inflammatory, neurotrophic, and neuroprotective properties in neurodegenerative disorder preclinical models, and hence hold promise for repurposing as a treatment for neurodegenerative diseases. In this review, we discuss incretin signaling, neuroinflammatory pathways, and the intersections between neuroinflammation, brain IR, and neurodegenerative diseases, with a focus on AD and PD. We additionally overview current FDA-approved incretin receptor stimulating drugs and agents in development, including unimolecular single, dual, and triple receptor agonists, and highlight those in clinical trials for neurodegenerative disease treatment. We propose that repurposing already-approved GLP-1R agonists for the treatment of neurodegenerative diseases may be a safe, efficacious, and cost-effective strategy for ameliorating AD and PD pathology by quelling neuroinflammation.
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Affiliation(s)
- Katherine O Kopp
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, United States.
| | - Elliot J Glotfelty
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, United States; Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Yazhou Li
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, United States
| | - Nigel H Greig
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, United States.
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20
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Role of the glymphatic system in idiopathic intracranial hypertension. Clin Neurol Neurosurg 2022; 222:107446. [DOI: 10.1016/j.clineuro.2022.107446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022]
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21
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Thaller M, Wakerley BR, Abbott S, Tahrani AA, Mollan SP, Sinclair AJ. Managing idiopathic intracranial hypertension in pregnancy: practical advice. Pract Neurol 2022; 22:295-300. [PMID: 35450962 PMCID: PMC9304112 DOI: 10.1136/practneurol-2021-003152] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2022] [Indexed: 01/18/2023]
Abstract
Idiopathic intracranial hypertension (IIH) is more common in women of reproductive age who have obesity, yet there is little information on its management specifically in pregnancy. Women with IIH should plan their pregnancy including discussing contraception before pregnancy, recognising that hormonal contraceptives are not contraindicated. Potentially teratogenic medications including acetazolamide and topiramate are not recommended during pregnancy or in those with immediate plans to conceive; prescribing acetazolamide in pregnancy must only follow discussion with the patient and their obstetrician. Ideally, patients should aim to achieve disease remission or control before pregnancy, through optimising their weight. Although weight gain is expected in pregnancy, excessive weight gain may exacerbate IIH and increase maternal and fetal complications; evidence-based recommendations for non-IIH pregnancies may help in guiding optimal gestational weight gain. The vast majority of women with IIH can have a normal vaginal delivery, with spinal or epidural anaesthesia if needed, provided the papilloedema is stable or the IIH is in remission.
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Affiliation(s)
- Mark Thaller
- Metabolic Neurology, University of Birmingham Institute of Metabolism and Systems Research, Birmingham, UK .,Neurology, Queen Elizabeth Hospital, Birmingham, UK
| | - Benjamin R Wakerley
- Metabolic Neurology, University of Birmingham Institute of Metabolism and Systems Research, Birmingham, UK.,Neurology, Queen Elizabeth Hospital, Birmingham, UK
| | - Sally Abbott
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK.,University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Abd A Tahrani
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.,Diabetes and Endocrinology, Queen Elizabeth Hospital, Birmingham, UK
| | - Susan P Mollan
- Metabolic Neurology, University of Birmingham Institute of Metabolism and Systems Research, Birmingham, UK.,Birmingham Neuro-Ophthalmology Unit, Ophthalmology Department, Queen Elizabeth Hospital, Birmingham, UK
| | - Alexandra J Sinclair
- Metabolic Neurology, University of Birmingham Institute of Metabolism and Systems Research, Birmingham, UK .,Neurology, Queen Elizabeth Hospital, Birmingham, UK
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22
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Idiopathic Intracranial Hypertension and Pregnancy: A Comprehensive Review of Management. Clin Neurol Neurosurg 2022; 217:107240. [DOI: 10.1016/j.clineuro.2022.107240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 11/17/2022]
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23
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Carroll I. Popping the balloon. Headache 2022; 62:120-121. [DOI: 10.1111/head.14262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 12/22/2021] [Indexed: 11/27/2022]
Affiliation(s)
- Ian Carroll
- Stanford School of Medicine Stanford Headache Clinic Stanford California USA
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24
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Grech O, Clouter A, Mitchell JL, Alimajstorovic Z, Ottridge RS, Yiangou A, Roque M, Tahrani AA, Nicholls M, Taylor AE, Shaheen F, Arlt W, Lavery GG, Shapiro K, Mollan SP, Sinclair AJ. Cognitive performance in idiopathic intracranial hypertension and relevance of intracranial pressure. Brain Commun 2021; 3:fcab202. [PMID: 34704028 PMCID: PMC8421706 DOI: 10.1093/braincomms/fcab202] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2021] [Indexed: 12/03/2022] Open
Abstract
Cognitive impairments have been reported in idiopathic intracranial hypertension; however, evidence supporting these deficits is scarce and contributing factors have not been defined. Using a case-control prospective study, we identified multiple domains of deficiency in a cohort of 66 female adult idiopathic intracranial hypertension patients. We identified significantly impaired attention networks (executive function) and sustained attention compared to a body mass index and age matched control group of 25 healthy female participants. We aimed to investigate how cognitive function changed over time and demonstrated that deficits were not permanent. Participants exhibited improvement in several domains including executive function, sustained attention and verbal short-term memory over 12-month follow-up. Improved cognition over time was associated with reduction in intracranial pressure but not body weight. We then evaluated cognition before and after a lumbar puncture with acute reduction in intracranial pressure and noted significant improvement in sustained attention to response task performance. The impact of comorbidities (headache, depression, adiposity and obstructive sleep apnoea) was also explored. We observed that body mass index and the obesity associated cytokine interleukin-6 (serum and cerebrospinal fluid) were not associated with cognitive performance. Headache severity during cognitive testing, co-morbid depression and markers of obstructive sleep apnoea were adversely associated with cognitive performance. Dysregulation of the cortisol generating enzyme 11β hydroxysteroid dehydrogenase type 1 has been observed in idiopathic intracranial hypertension. Elevated cortisol has been associated with impaired cognition. Here, we utilized liquid chromatography-tandem mass spectrometry for multi-steroid profiling in serum and cerebrospinal fluid in idiopathic intracranial hypertension patients. We noted that reduction in the serum cortisol:cortisone ratio in those undergoing bariatric surgery at 12 months was associated with improving verbal working memory. The clinical relevance of cognitive deficits was noted in their significant association with impaired reliability to perform visual field tests, the cornerstone of monitoring vision in idiopathic intracranial hypertension. Our findings propose that cognitive impairment should be accepted as a clinical manifestation of idiopathic intracranial hypertension and impairs the ability to perform visual field testing reliably. Importantly, cognitive deficits can improve over time and with reduction of intracranial pressure. Treating comorbid depression, obstructive sleep apnoea and headache could improve cognitive performance in idiopathic intracranial hypertension.
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Affiliation(s)
- Olivia Grech
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston B15 2TT, UK
| | - Andrew Clouter
- Department of Psychology, Nottingham Trent University, Nottingham NG1 5LT, UK
| | - James L Mitchell
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston B15 2TT, UK
| | - Zerin Alimajstorovic
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston B15 2TT, UK
| | - Ryan S Ottridge
- Birmingham Clinical Trials Unit, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Andreas Yiangou
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston B15 2TT, UK
| | - Marianne Roque
- Birmingham Neuro-Ophthalmology Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK
| | - Abd A Tahrani
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
| | - Matthew Nicholls
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
| | - Angela E Taylor
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
| | - Fozia Shaheen
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
| | - Wiebke Arlt
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
| | - Gareth G Lavery
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
| | - Kimron Shapiro
- Centre for Human Brain Health, School of Psychology, University of Birmingham, Birmingham B15 2TT, UK
| | - Susan P Mollan
- Birmingham Neuro-Ophthalmology Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK
| | - Alexandra J Sinclair
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston B15 2TT, UK
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25
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Galloway L, Karia K, White AM, Byrne ME, Sinclair AJ, Mollan SP, Tsermoulas G. Cerebrospinal fluid shunting protocol for idiopathic intracranial hypertension for an improved revision rate. J Neurosurg 2021:1-6. [PMID: 34624853 DOI: 10.3171/2021.5.jns21821] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/17/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Cerebrospinal fluid (CSF) shunting in idiopathic intracranial hypertension (IIH) is associated with high complication rates, primarily because of the technical challenges that are related to small ventricles and a large body habitus. In this study, the authors report the benefits of a standardized protocol for CSF shunting in patients with IIH as relates to shunt revisions. METHODS This was a retrospective study of consecutive patients with IIH who had undergone primary insertion of a CSF shunt between January 2014 and December 2020 at the authors' hospital. In July 2019, they implemented a surgical protocol for shunting in IIH. This protocol recommended IIH shunt insertion by neurosurgeons with expertise in CSF disorders, a frontal ventriculoperitoneal (VP) shunt with an adjustable gravitational valve and integrated intracranial pressure monitoring device, frameless stereotactic insertion of the ventricular catheter, and laparoscopic insertion of the peritoneal catheter. Thirty-day revision rates before and after implementation of the protocol were compared in order to assess the impact of standardizing shunting for IIH on shunt complications. RESULTS The 81 patients included in the study were predominantly female (93%), with a mean age of 31 years at primary surgery and mean body mass index (BMI) of 37 kg/m2. Forty-five patients underwent primary surgery prior to implementation of the protocol and 36 patients after. Overall, 12 (15%) of 81 patients needed CSF shunt revision in the first 30 days, 10 before and 2 after introduction of the protocol. This represented a significant reduction in the early revision rate from 22% to 6% after the protocol (p = 0.036). The most common cause of shunt revision for the whole cohort was migration or misplacement of the peritoneal catheter, occurring in 6 of the 12 patients. Patients with a higher BMI were significantly more likely to have a shunt revision within 30 days (p = 0.022). CONCLUSIONS The Birmingham standardized IIH shunt protocol resulted in a significant reduction in revisions within 30 days of primary shunt surgery in patients with IIH. The authors recommend standardization for shunting in IIH as a method for improving surgical outcomes. They support the notion of subspecialization for IIH shunts, the use of a frontal VP shunt with sophisticated technology, and laparoscopic insertion of the peritoneal end.
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Affiliation(s)
| | | | | | | | - Alexandra J Sinclair
- 2Neurology, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham.,3Institute of Metabolism and Systems Research, University of Birmingham; and
| | - Susan P Mollan
- 4Birmingham Neuro-Ophthalmology, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham, United Kingdom
| | - Georgios Tsermoulas
- Departments of1Neurosurgery and.,3Institute of Metabolism and Systems Research, University of Birmingham; and
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26
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Yiangou A, Mitchell JL, Nicholls M, Chong YJ, Vijay V, Wakerley BR, Lavery GG, Tahrani AA, Mollan SP, Sinclair AJ. Obstructive sleep apnoea in women with idiopathic intracranial hypertension: a sub-study of the idiopathic intracranial hypertension weight randomised controlled trial (IIH: WT). J Neurol 2021; 269:1945-1956. [PMID: 34420064 PMCID: PMC8940816 DOI: 10.1007/s00415-021-10700-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 12/15/2022]
Abstract
Objective Obesity is a risk factor for idiopathic intracranial hypertension (IIH) and obstructive sleep apnoea (OSA). We aimed to determine the prevalence of OSA in IIH and evaluate the diagnostic performance of OSA screening tools in IIH. Additionally, we evaluated the relationship between weight loss, OSA and IIH over 12 months. Methods A sub-study of a multi-centre, randomised controlled parallel group trial comparing the impact of bariatric surgery vs. community weight management intervention (CWI) on IIH-related outcomes over 12 months (IIH:WT). OSA was assessed using home-based polygraphy (ApneaLink Air, ResMed) at baseline and 12 months. OSA was defined as an apnoea–hypopnoea index (AHI) ≥ 15 or ≥ 5 with excessive daytime sleepiness (Epworth Sleepiness Scale ≥11 ). Results Of the 66 women in the IIH: WT trial, 46 were included in the OSA sub-study. OSA prevalence was 47% (n = 19). The STOP-BANG had the highest sensitivity (84%) compared to the Epworth Sleepiness Scale (69%) and Berlin (68%) to detect OSA. Bariatric surgery resulted in greater reductions in AHI vs. CWI (median [95%CI] AHI reduction of – 2.8 [ – 11.9, 0.7], p = 0.017). Over 12 months there was a positive association between changes in papilloedema and AHI (r = 0.543, p = 0.045), despite adjustment for changes in the body mass index (R2 = 0.522, p = 0.017). Conclusion OSA is common in IIH and the STOP-BANG questionnaire was the most sensitive screening tool. Bariatric surgery improved OSA in patients with IIH. The improvement in AHI was associated with improvement in papilloedema independent of weight loss. Whether OSA treatment has beneficial impact on papilloedema warrants further evaluation. Trial registration number IIH: WT is registered as ISRCTN40152829 and on ClinicalTrials.gov as NCT02124486 (28/04/2014). Supplementary Information The online version contains supplementary material available at 10.1007/s00415-021-10700-9.
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Affiliation(s)
- Andreas Yiangou
- 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, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
| | - James L Mitchell
- 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, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
| | - Matthew Nicholls
- 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
| | - Yu Jeat Chong
- Birmingham Neuro-Ophthalmology, Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, Birmingham, B15 2TH, UK
| | - Vivek Vijay
- 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, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
| | - Benjamin R Wakerley
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, 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.,Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
| | - Abd A Tahrani
- 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 Endocrinology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK
| | - Susan P Mollan
- Birmingham Neuro-Ophthalmology, Ophthalmology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham, 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, University Hospitals Birmingham NHS Foundation Trust, Birmingham, B15 2TH, UK.
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27
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Jensen RH, Vukovic-Cvetkovic V, Korsbaek JJ, Wegener M, Hamann S, Beier D. Awareness, Diagnosis and Management of Idiopathic Intracranial Hypertension. Life (Basel) 2021; 11:718. [PMID: 34357090 PMCID: PMC8303648 DOI: 10.3390/life11070718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/06/2021] [Accepted: 07/14/2021] [Indexed: 11/16/2022] Open
Abstract
The diagnosis and management of idiopathic intracranial hypertension (IIH) can be difficult and multiple medical subspecialities are often involved. Several national and international guidelines regarding the investigations and management of IIH have been published in recent years but still there is no consensus about the optimal organization of IIH-care. The objective of this review was to propose and describe a referral pathway and an organization scheme for diagnosis and management of IIH. An extensive search of existing literature was conducted and summarized. In total, 237 IIH-articles were identified and hereof 43 included. The clinical practice in our specialized IIH-clinic is characterized and described. We conclude that an educational campaign involving medical care providers and patients with chronic headaches is necessary. A detailed organizational proposal for a referral pathway and management of IIH patients based on the literature search and our clinical experience from a highly specialized IIH outpatient clinic is suggested and discussed.
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Affiliation(s)
- Rigmor Højland Jensen
- Danish Headache Center, Department of Neurology, Rigshospitalet, University of Copenhagen, 1165 København, Denmark; (V.V.-C.); (J.J.K.)
| | - Vlasta Vukovic-Cvetkovic
- Danish Headache Center, Department of Neurology, Rigshospitalet, University of Copenhagen, 1165 København, Denmark; (V.V.-C.); (J.J.K.)
| | - Johanne Juhl Korsbaek
- Danish Headache Center, Department of Neurology, Rigshospitalet, University of Copenhagen, 1165 København, Denmark; (V.V.-C.); (J.J.K.)
| | - Marianne Wegener
- Department of Ophthalmology, Rigshospitalet, University of Copenhagen, 1165 København, Denmark; (M.W.); (S.H.)
| | - Steffen Hamann
- Department of Ophthalmology, Rigshospitalet, University of Copenhagen, 1165 København, Denmark; (M.W.); (S.H.)
| | - Dagmar Beier
- Department of Neurology, Odense University Hospital, 5000 Odense, Denmark;
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28
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Mollan SP, Mytton J, Tsermoulas G, Sinclair AJ. Idiopathic Intracranial Hypertension: Evaluation of Admissions and Emergency Readmissions through the Hospital Episode Statistic Dataset between 2002-2020. Life (Basel) 2021; 11:417. [PMID: 34063037 PMCID: PMC8148005 DOI: 10.3390/life11050417] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/25/2021] [Accepted: 04/30/2021] [Indexed: 12/20/2022] Open
Abstract
With increasing incidence and prevalence of Idiopathic intracranial hypertension in the UK, the aim of this study was to explore emerging themes in Idiopathic intracranial hypertension using the Hospital Episode Statistics dataset and to quantify recent change in hospital admissions and surgeries performed within England. METHODS Hospital Episode Statistics national data was extracted between 1 April 2002 and 31 March 2019, and followed up until 31 March 2020. All those within England with a diagnosis of Idiopathic Intracranial Hypertension were included. Those with secondary causes of raised intracranial pressure such as tumors, hydrocephalus and cerebral venous sinus thrombosis were excluded. RESULTS 28,794 new IIH cases were diagnosed between 1 January 2002 and 31 December 2019. Incidence rose between 2002 to 2019 from 1.8 to 5.2 per 100,000 in the general population. Peak incidence occurred in females aged 25-29 years. Neurosurgical shunt was the commonest procedure performed (6.4%), followed by neovascular venous sinus stenting (1%), bariatric surgery (0.8%) and optic nerve sheath fenestration (0.5%). The portion of the total IIH population requiring a shunt fell from 10.8% in 2002/2003 to 2.46% in 2018/2019. The portion of the total IIH population requiring shunt revision also reduced over time from 4.84% in 2002/2003 to 0.44% in 2018/2019. The mean 30 days emergency readmissions for primary shunt, revision of shunt, bariatric surgery, neurovascular stent, and optic nerve sheath fenestration was 23.1%, 23.7%, 10.6%, 10.0% and 9.74%, respectively. There was a peak 30 days readmission rate following primary shunt in 2018/2019 of 41%. Recording of severe visual impairment fell to an all-time low of 1.38% in 2018/19. CONCLUSIONS Increased awareness of the condition, specialist surgery and expert guidance may be changing admissions and surgical trends in IIH. The high 30 readmission following primary shunt surgery for IIH requires further investigation.
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Affiliation(s)
- Susan P. Mollan
- Birmingham Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK
| | - Jemma Mytton
- Health Informatics, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK;
| | - Georgios Tsermoulas
- Department of Neurosurgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK;
- Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Alex J. Sinclair
- Metabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston B15 2TT, UK;
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham B15 2TH, UK
- Department of Neurology, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, UK
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29
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Scerrati A, Norri N, Mongardi L, Dones F, Ricciardi L, Trevisi G, Menegatti E, Zamboni P, Cavallo MA, De Bonis P. Styloidogenic-cervical spondylotic internal jugular venous compression, a vascular disease related to several clinical neurological manifestations: diagnosis and treatment-a comprehensive literature review. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:718. [PMID: 33987416 PMCID: PMC8106058 DOI: 10.21037/atm-20-7698] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Internal jugular vein (IJV) stenosis is associated with several central nervous system disorders such as Ménière or Alzheimer’s disease. The extrinsic compression between the styloid process and the C1 transverse process, is an emerging biomarker related to several clinical manifestations. However, nowadays a limited number of cases are reported, and few information are available about treatment, outcome and complications. Our aim is to collect and identify clinical-radiological characteristics, diagnosis and treatment of the styloidogenic internal jugular venous compression. We performed a comprehensive literature review. Studies reporting patients suffering from extracranial jugular stenosis were searched. For every patient we collected: demography, clinical and radiological characteristics and outcome, type of treatment, complications. Thirteen articles reporting 149 patients were included. Clinical presentation was non-specific. Most frequent symptoms were headache (46.3%), tinnitus (43.6%), insomnia (39.6%). The stenosis was monolateral in 51 patients (45.9%) and bilateral in 60 (54.1%). Anticoagulants were the most common prescribed drug (57.4%). Endovascular treatment was performed in 50 patients (33.6%), surgery in 55 (36.9%), combined in 28 (18.8%). Improvement of general conditions was reported in 58/80 patients (72.5%). Complications were reported in 23% of cases. Jugular stenosis is a complex and often underestimated disease. Conservative medical treatment usually fails while surgical, endovascular or a combined treatment improves general conditions in more than 70% of patients.
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Affiliation(s)
- Alba Scerrati
- Neurosurgery Department, Sant'Anna University Hospital, Ferrara, Italy.,Department of Translational Medicine and for Romagna, University of Ferrara, Ferrara, Italy
| | - Nicoló Norri
- Neurosurgery Department, Sant'Anna University Hospital, Ferrara, Italy
| | - Lorenzo Mongardi
- Neurosurgery Department, Sant'Anna University Hospital, Ferrara, Italy
| | - Flavia Dones
- Neurosurgery Department, Sant'Anna University Hospital, Ferrara, Italy
| | - Luca Ricciardi
- Neurosurgery, Azienda Ospedaliera Sant'Andrea, Sapienza, Rome, Italy
| | | | - Erica Menegatti
- Department of Translational Medicine and for Romagna, University of Ferrara, Ferrara, Italy.,HUB Center Regione Emilia Romagna for Venous and Lymphatics Disorders, University Hospital of Ferrara, Ferrara, Italy
| | - Paolo Zamboni
- Department of Translational Medicine and for Romagna, University of Ferrara, Ferrara, Italy.,HUB Center Regione Emilia Romagna for Venous and Lymphatics Disorders, University Hospital of Ferrara, Ferrara, Italy
| | - Michele Alessandro Cavallo
- Neurosurgery Department, Sant'Anna University Hospital, Ferrara, Italy.,Department of Translational Medicine and for Romagna, University of Ferrara, Ferrara, Italy
| | - Pasquale De Bonis
- Neurosurgery Department, Sant'Anna University Hospital, Ferrara, Italy.,Department of Translational Medicine and for Romagna, University of Ferrara, Ferrara, Italy
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Toscano S, Zappia M. Letter to the editors: comment on "Emerging themes in idiopathic intracranial hypertension". J Neurol 2021; 268:1117-1118. [PMID: 33474621 DOI: 10.1007/s00415-021-10401-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 01/06/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Simona Toscano
- Department "GF Ingrassia", Section of Neurosciences, Multiple Sclerosis Center, University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Mario Zappia
- Department "GF Ingrassia", Section of Neurosciences, Multiple Sclerosis Center, University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
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