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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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Ballabio E, Valvassori L, De Simone R, Bianchi Marzoli S, Frediani F. Idiopathic intracranial hypertension secondary to Superior Sagittal Sinus Stenosis: a case report. Neurol Sci 2024:10.1007/s10072-024-07608-3. [PMID: 38806880 DOI: 10.1007/s10072-024-07608-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/15/2024] [Indexed: 05/30/2024]
Abstract
INTRODUCTION Idiopathic intracranial hypertension (IIH) is a disease characterized by elevated intracranial pressure (ICP) without established etiology. Venous sinus stenosis contributes to IIH; however, it is still uncertain whether the stenosis is a primary cause of IIH or a secondary result in response to elevated ICP. Transverse sinus stenosis is frequently identified in patients with IIH and it is suggestive of raised ICP. Here, we report a case of IIH caused by intrinsic superior sagittal sinus stenosis (SSS). CASE PRESENTATION A 43-year-old man suffered from IIH with headache, papilledema, and visual impairment. Angiography demonstrated isolated SSS stenosis with a pressure gradient of 30 mmHg. SSS stenosis was resistant to revascularization by stenting alone and intrastent balloon angioplasty was then performed to overcome such resistance. The rigidity of the vein wall suggests that the vein is not collapsed and the stenosis is intrinsic, secondary to idiopathic anatomical local changes. Post-procedure headache disappeared and visual acuity improved. CONCLUSION An isolated SSS stenosis could lead to intracranial hypertension and this condition should be taken into account in the diagnostic workup of IIH. By now, SSS stenosis is not mentioned in any current consensus guidelines or paper on the diagnostic workflow of intracranial hypertension.
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Affiliation(s)
- Elena Ballabio
- Department of Neurology, ASST Santi paolo e Carlo, via Pio II 3, 20153, Milan, Italy.
| | - Luca Valvassori
- Department of Neuroradiology, ASST Santi paolo e Carlo, via Pio II 3, 20153, Milan, Italy
| | - Roberto De Simone
- University of Naples "Federico II", Via S. Pansini 5, 80131, Naples, Italy
| | - Stefania Bianchi Marzoli
- Neuro-Ophthalmology Service and Ocular Electrophysiology Laboratory, Scientific Institute Capitanio Hospital, IRCCS Istituto Auxologico Italiano, Via Mercalli, 28, 20122, Milan, Italy
| | - Fabio Frediani
- Department of Neurology, ASST Santi paolo e Carlo, via Pio II 3, 20153, Milan, Italy
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Alabbad S, Figueredo N, Yuan H, Silberstein S. Developments in targeting calcitonin gene-related peptide. Expert Rev Neurother 2024; 24:477-485. [PMID: 38557226 DOI: 10.1080/14737175.2024.2332754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 03/15/2024] [Indexed: 04/04/2024]
Abstract
INTRODUCTION Calcitonin Gene-Related Peptide (CGRP)-targeted therapy has revolutionized migraine treatment since its first approval in 2018. CGRP-targeted therapy includes monoclonal antibodies (mAbs) and gepants, which modulate trigeminal nociceptive and inflammatory responses, alleviating pain sensitization involved in migraine pathogenesis. CGRP-targeted therapy is effective not only for migraine but also for other chronic headache disorders that share the CGRP pathway. AREAS COVERED The authors review the latest developments and evidence for CGRP-targeted therapy for episodic migraine and chronic migraine. In addition, the authors discuss the emerging evidence on response prediction, menstrual migraine, vestibular migraine, idiopathic intracranial hypertension, post-traumatic headache, and the relationship between selected migraine comorbidities and CGRP. EXPERT OPINION Since the launch of CGRP-targeted therapy, many practical issues have been raised. Generally, it's safe to combine CGRP-targeted mAbs and gepants; this is an excellent option for patients with partial response. When considering stopping CGRP-targeted therapy, although a disease-modifying effect is likely, the optimal time for discontinuation remains unknown. Finally, beyond migraine, CGRP-targeted therapy may be used for other chronic pain disorders and psychological comorbidities.
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Affiliation(s)
- Sawsan Alabbad
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Nathalia Figueredo
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hsiangkuo Yuan
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Stephen Silberstein
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
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Chen X, Ren Y, Chen F. Severe bilateral papilledema after sigmoid sinus constriction surgery: a case report. BMC Ophthalmol 2023; 23:500. [PMID: 38066460 PMCID: PMC10704719 DOI: 10.1186/s12886-023-03252-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 12/01/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Papilledema is a common sign of various diseases in the eye. It could result from any conditions of increased intracranial pressure (ICP). Underlying the etiology of papilledema and appropriate treatment in time is essential. CASE REPORT We present a case of severe bilateral papilledema after sigmoid sinus constriction surgery. A 25-year-old female presented with a 1-month history of bilateral blurred vision, headache, and vomiting. The patient had a history of right-side sigmoid sinus constriction surgery for pulsatile tinnitus (PT) one month before in another hospital. Fundus examination showed severe bilateral papilledema. Lumbar puncture showed an elevated cerebrospinal fluid (CSF) opening pressure of 29 cm H2O. Neuroimaging examination demonstrated the right sigmoid sinus filling defect as changes after surgery. We referred the patient to the initial surgeon, who repaired the sigmoid sinus on the right side by removing the implanted gelatin sponge, as diuretic treatment could not be effective. Intracranial hypertension symptoms and signs improved soon after eliminating sigmoid sinus stenosis. Neuroimaging showed resolved right sigmoid sinus stenosis after the second surgery. CSF opening pressure was 14.5 cm H2O at the 1-month follow-up. Fundus examination showed entirely resolved papilledema. Three years of follow-up showed no recurrence. CONCLUSIONS This is the first clinical report of intracranial hypertension associated with sigmoid sinus constriction surgery. Although rare, rapid detection and adequate etiology management could lead to a good prognosis. It highlights the need for ophthalmologists to be aware of the diagnostic approach to papilledema and enhance cooperation with multidisciplinary departments. The most likely cause of the intracranial hypertension was dominant sinus surgical constriction by mechanical external compression, as confirmed by the complete clinical remission following the second operation to remove the implanted gelatin sponge. Thus, this case also highlights the importance of selecting the appropriate therapeutic option for PT. Surgical sinus constriction should no longer be considered a viable option for PT treatment.
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Affiliation(s)
- Xi Chen
- Department of Ophthalmology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu Province, China
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Yizhou Ren
- Department of Ophthalmology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu Province, China
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Fang Chen
- Department of Ophthalmology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu Province, China.
- Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu Province, China.
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De Simone R, Sansone M, Curcio F, Russo CV, Galizia G, Miele A, Stornaiuolo A, Piccolo A, Braca S, Abete P. Recurrent reflex syncope in idiopathic intracranial hypertension patient resolved after lumbar puncture: pathogenetic implications. BMC Neurol 2023; 23:416. [PMID: 37990305 PMCID: PMC10662480 DOI: 10.1186/s12883-023-03451-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 10/30/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Idiopathic intracranial hypertension is a disease characterized by increased intracranial cerebrospinal fluid volume and pressure without evidence of other intracranial pathology. Dural sinuses are rigid structures representing a privileged low-pressure intracranial compartment. Rigidity of dural sinus ensures that the large physiologic fluctuations of cerebrospinal fluid pressure associated with postural changes or to Valsalva effect cannot be transmitted to the sinus. An abnormal dural sinus collapsibility, especially when associated with various anatomical sinus narrowing, has been proposed as a key factor in the pathogenesis of idiopathic intracranial hypertension. This pathogenetic model is based on an excessive collapsibility of the dural sinuses that leads to the triggering of a self-limiting venous collapse positive feedback-loop between the cerebrospinal fluid pressure, that compresses the sinus, and the increased dural sinus pressure upstream, that reduces the cerebrospinal fluid reabsorption rate, increasing cerebrospinal fluid volume and pressure at the expense of intracranial compliance and promoting further sinus compression. Intracranial compliance is the ability of the craniospinal space to accept small volumetric increases of one of its compartments without appreciable intracranial pressure rise. In idiopathic intracranial hypertension, a condition associated with a reduced rate of CSF reabsorption leading to its volumetric expansion, a pathologically reduced IC precedes and accompanies the rise of ICP. Syncope is defined as a transient loss of consciousness due to a transient cerebral hypoperfusion characterized by rapid onset, short duration, and spontaneous complete recovery. A transient global cerebral hypoperfusion represents the final mechanism of syncope determined by cardiac output and/or total peripheral resistance decrease. There are many causes determining low cardiac output including reflex bradycardia, arrhythmias, cardiac structural disease, inadequate venous return, and chronotropic and inotropic incompetence. Typically, syncopal transient loss of consciousness is mainly referred to an extracranial mechanism triggering a decrease in cardiac output and/or total peripheral resistance. Conversely, the association of syncope with a deranged control of intracranial compliance related to cerebral venous outflow disorders has been only anecdotally reported. CASE PRESENTATION We report on a 57-year-old woman with daily recurrent orthostatic hypotension syncope and idiopathic intracranial hypertension-related headaches, which resolved after lumbar puncture with cerebrospinal fluid subtraction. CONCLUSIONS A novel mechanism underlying the triggering of orthostatic syncope in the presence of intracranial hypertension-dependent reduced intracranial compliance is discussed.
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Affiliation(s)
- Roberto De Simone
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples, Via S. Pansini, 5, Naples, 80131, Italy.
| | - Mattia Sansone
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples, Via S. Pansini, 5, Naples, 80131, Italy
| | - Francesco Curcio
- Department of Translational Medical Sciences, University Federico II of Naples, Naples, Italy
| | - Cinzia Valeria Russo
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples, Via S. Pansini, 5, Naples, 80131, Italy
| | - Gianluigi Galizia
- Department of Translational Medical Sciences, University Federico II of Naples, Naples, Italy
| | - Angelo Miele
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples, Via S. Pansini, 5, Naples, 80131, Italy
| | - Antonio Stornaiuolo
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples, Via S. Pansini, 5, Naples, 80131, Italy
| | - Andrea Piccolo
- Department of Translational Medical Sciences, University Federico II of Naples, Naples, Italy
| | - Simone Braca
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples, Via S. Pansini, 5, Naples, 80131, Italy
| | - Pasquale Abete
- Department of Translational Medical Sciences, University Federico II of Naples, Naples, Italy
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Sengupta S, Vidwan J. Overlap and Differences in Migraine and Idiopathic Intracranial Hypertension. Curr Pain Headache Rep 2023; 27:653-662. [PMID: 37656318 DOI: 10.1007/s11916-023-01166-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE OF REVIEW Migraine and idiopathic intracranial hypertension (IIH) are increasingly encountered but remain enigmatic. This review compares the similarities and differences of the diagnostic criteria, pathophysiology, and risk factors for chronic migraine and IIH. RECENT FINDINGS While migraine and IIH are distinct diseases, both conditions are frequently found concurrently and may share a link. Increased intracranial pressure (ICP) in those with or without pre-existing migraine may present with migraine-like headaches and contribute to migraine chronification. Increased intracranial pressure may be a coincidental occurrence in patients with migraine and normalization of pressure does not always translate to headache improvement. Limited information is available regarding the standard of treatment for patients with chronic migraine and IIH without papilledema. There continues to be controversy over the normal range of cerebral spinal fluid (CSF) values. Recognizing the concurrence of both conditions advances our understanding of headache pathology and demonstrates a striking need for more research.
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Affiliation(s)
- Sweta Sengupta
- Department of Neurology, Duke University, 932 Morreene Road, Durham, 27705, NC, UK.
| | - Jaskiran Vidwan
- Department of Neurology, Duke University, 932 Morreene Road, Durham, 27705, NC, UK
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Ding H, Zhao P, Lv H, Li X, Qiu X, Dai C, Xu N, Wang G, Yang Z, Gong S, Jin L, Wang Z. A new method for assessing transverse sinus stenosis with CT venography based on the venous trans-stenotic pressure gradient. J Neurointerv Surg 2023; 15:1034-1038. [PMID: 36207111 PMCID: PMC10511954 DOI: 10.1136/jnis-2022-019270] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/12/2022] [Indexed: 01/03/2023]
Abstract
BACKGROUND Evaluation of the transverse sinus stenosis (TSS) is essential for TSS-related diseases. OBJECTIVE To investigate a new method for the quantitative assessment of TSS based on the correlation between TSS and trans-stenotic pressure gradient (TPG). METHODS Patients with unilateral pulsatile tinnitus with or without idiopathic intracranial hypertension were retrospectively included. All patients underwent CT venography and venous manometry and were confirmed to have TSS. The cross-sectional diameter/area of TSS, the poststenotic and prestenotic segments, and the superior sagittal sinus (SSS) were measured. The degree of TSS was calculated by dividing the diameter/area of TSS by the diameter/area of the poststenotic segment (M1/M2), prestenotic segment (M3/M4), and SSS (M5/M6). Partial correlation analysis (controlling for the effect of age, sex, outflow laterality, and contralateral stenosis) was performed to evaluate the correlation between M1-M6 and the TPG. Receiver operating characteristic curve analysis of M1-M6 for diagnosing a significant TPG (≥8 mm Hg) was performed. RESULTS Ninety-nine patients met the inclusion criteria. The partial correlation coefficients between M1-M6 and the TPG were 0.60, 0.61, 0.43, 0.48, 0.39, and 0.54, respectively. The areas under the curve (AUCs) of M1-M6 for diagnosing a significant TPG were 0.81, 0.86, 0.68, 0.69, 0.64, and 0.72, respectively. The AUC of M2 was significantly larger than that of M3 (P=0.002), M4 (P<0.001), M5 (P=0.001), and M6 (P<0.001). CONCLUSIONS Quantitatively assessing TSS by taking the ratio of the cross-sectional area of TSS to that of the poststenotic segment might be a more efficient method for predicting the TPG.
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Affiliation(s)
- Heyu Ding
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Pengfei Zhao
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Han Lv
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Xiaoshuai Li
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Xiaoyu Qiu
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Chihang Dai
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Ning Xu
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Guopeng Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Zhenghan Yang
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Shusheng Gong
- Department of Otolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
| | - Long Jin
- Department of Intervention, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing 100050, China
| | - Zhenchang Wang
- Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, Beijing, China
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Bateman GA. A scoping review of the discrepancies in the measurement of cerebral blood flow in idiopathic intracranial hypertension: oligemia, euvolemia or hyperemia? Fluids Barriers CNS 2023; 20:63. [PMID: 37612708 PMCID: PMC10463926 DOI: 10.1186/s12987-023-00465-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND The literature regarding the global cerebral blood flow (CBF) in idiopathic intracranial hypertension (IIH) is divergent leading to skepticism about the significance of blood flow to the disease's underlying pathophysiology. METHODS The purpose of the current paper is to perform a PRISMA scoping review of the literature describing the CBF in IIH. The review investigated the PUBMED and Scopus data bases looking at case mix, technique and the methodologies employed by the studies selected. DISCUSSION Many studies indicate that the flow in IIH is normal but others show the flow to be altered. These later studies show a range of flows from a reduction of 20% to an increase of 50% compared to control values. Obesity is a common finding in IIH and is known to reduce CBF, anemia occurs in approximately 20% of IIH patients and is a potent cause of an increased CBF. Thus, variations in case mix may have a significant effect on the final outcome in those studies which are underpowered. The varying techniques which have been used to estimate CBF have differing strengths and weaknesses which may also have a bearing on the outcome. Some papers have significant confounding methodological issues. CONCLUSIONS This review suggests each of the variables investigated are responsible for the divergent CBF findings in IIH.
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Affiliation(s)
- Grant A Bateman
- Department of Medical Imaging, John Hunter Hospital, Locked Bag 1, Newcastle Region Mail Center, Newcastle, NSW, 2310, Australia.
- Newcastle University Faculty of Health, Callaghan Campus, Newcastle, NSW, Australia.
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Hulens M, Dankaerts W, Rasschaert R, Bruyninckx F, De Mulder P, Bervoets C. The Link Between Empty Sella Syndrome, Fibromyalgia, and Chronic Fatigue Syndrome: The Role of Increased Cerebrospinal Fluid Pressure. J Pain Res 2023; 16:205-219. [PMID: 36721849 PMCID: PMC9884441 DOI: 10.2147/jpr.s394321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
The etiopathogenesis of fibromyalgia (FM) and chronic fatigue syndrome (CFS) is not yet elucidated. Hypothalamo-pituitary-adrenal (HPA) axis dysfunction is reflected in the hormonal disturbances found in FM and CFS. Some study groups have introduced a novel hypothesis that moderate or intermittent intracranial hypertension may be involved in the etiopathogenesis of FM and CFS. In these conditions, hormonal disturbances may be caused by the mechanical effect of increased cerebrospinal fluid pressure, which hampers blood flow in the pituitary gland. Severe intracranial pressure may compress the pituitary gland, resulting in primary empty sella (ES), potentially leading to pituitary hormone deficiencies. The aim of this narrative review was to explore whether similar hormonal changes and symptoms exist between primary ES and FM or CFS and to link them to cerebrospinal fluid pressure dysregulation. A thorough search of the PubMed and Web of Science databases and the reference lists of the included studies revealed that several clinical characteristics were more prevalent in primary ES, FM or CFS patients than in controls, including increased cerebrospinal fluid pressure, obesity, female sex, headaches and migraine, fatigue, visual disturbances (visual acuity and eye motility abnormalities), vestibulocochlear disturbances (vertigo and neurosensorial hearing loss), and bodily pain (radicular pain and small-fiber neuropathy). Furthermore, challenge tests of the pituitary gland showed similar abnormalities in all three conditions: blunted adrenocorticotropic hormone, cortisol, growth hormone, luteinizing hormone, and thyroid stimulating hormone responses and an increased prolactin response. The findings of this narrative review provide further support for the hypothesis that moderately or intermittently increased cerebrospinal fluid pressure is involved in the pathogenesis of FM and CFS and should stimulate further research into the etiopathogenesis of these conditions.
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Affiliation(s)
- Mieke Hulens
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium,Correspondence: Mieke Hulens, Department of Rehabilitation Sciences, KU Leuven, Overwegstraat 14, 3051 Sint-Joris-Weert, Leuven, Belgium, Tel +32 477 338003, Fax +32 16 329197, Email
| | - Wim Dankaerts
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | | | - Frans Bruyninckx
- Department of Physical Medicine & Rehabilitation, University Hospitals of Leuven, Leuven, Belgium
| | - Peter De Mulder
- Department of Anesthesiology and Pain Therapy, Imelda Hospital, Bonheiden, Belgium
| | - Chris Bervoets
- Department of Neurosciences, KU Leuven, Leuven, Belgium,Department of Ophthalmology, University Hospitals of Leuven, Leuven, Belgium,Department Adult Psychiatry, University Psychiatric Center of KU Leuven, Leuven, Belgium
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Liu W, Jia L, Xu L, Yang F, Cheng H, Li H, Hou J, Zhang D, Liu Y. Idiopathic intracranial hypertension in patients with cerebral small vessel disease: A case report. Medicine (Baltimore) 2023; 102:e32639. [PMID: 36607854 PMCID: PMC9829262 DOI: 10.1097/md.0000000000032639] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Idiopathic intracranial hypertension (IIH) is a clinical syndrome characterized by increased intracranial pressure (ICP) without any identifiable cause. However, restrictions of cerebrospinal fluid absorption from the cerebral venous system, the glymphatic system overflow, and the cerebrospinal fluid's lymphatic pathways may be involved in the pathophysiology of IIH. Furthermore, an impaired glymphatic system is also implicated in the initiation and progression of cerebral small vessel disease (CSVD). Here, we reported a case of CSVD with concomitant IIH, possibly associated with the brain's glymphatic and lymphatic system dysfunction. CASE CONCERN A 39-year-old male presented with worsening headaches over the bilateral parietal areas during the past year and nausea for 2 days. Fundus examination revealed bilateral papilledema and lumbar puncture suggestive of elevated ICP, laboratory results showed hyperhomocysteinemia and mutation of methylenetetrahydrofolate reductase C677T. On magnetic resonance imaging, subcortical small infarct, white matter lesions, lacunes, enlarged perivascular spaces and dilatation of the optic nerve sheaths was detected, and right transverse sinus stenosis and a hypoplastic left sinus were showed on contrast-enhanced magnetic resonance venography. DIAGNOSIS The diagnoses of IIH, CSVD, transverse sinus stenosis, and hyperhomocysteinemia were performed. INTERVISION AND OUTCOMES The patient received antihypertensive, antiplatelet, anti-atherosclerotic, and homocysteine-lowering therapies. Finally, the patient's symptoms remised, and the increased ICP returned to normal; however, the bilateral TSS persisted after 3 months of follow-up. CONCLUSIONS In this case, we speculate that the normal glymphatic outflow pathway may serve as a compensatory mechanism for regulating increased ICP in patients with bilateral venous sinus obstruction, indicating impaired venous outflow pathway, possibly associated with dysfunction of the glymphatic and lymphatic systems in patients with CSVD.
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Affiliation(s)
- Wei Liu
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
- * Correspondence: Wei Liu, Jincheng People’s Hospital, Jincheng 048000, China (e-mail: )
| | - Longbin Jia
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Lina Xu
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Fengbing Yang
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Hongjiang Cheng
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Huimin Li
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Jing Hou
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Dandan Zhang
- Department of Neurology, Jincheng People’s Hospital, Jincheng, China
| | - Yan Liu
- Changzhi Medical College, Changzhi, China
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11
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Idiopathic Intracranial Hypertension and Vascular Anomalies in Chiari I Malformation. Neurosurg Clin N Am 2023; 34:175-183. [DOI: 10.1016/j.nec.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Stolz E. Intracranial pressure and veins. VASA 2022; 51:329-332. [DOI: 10.1024/0301-1526/a001028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Summary: This review summarizes the relationship between intracranial pressure and the venous system as far as ultrasound methods are concerned. Although the pressure in cortical veins is tightly and linearly coupled to the intracranial pressure, venous flow velocities in the basal veins are not. However, venous flow velocities reflect better the local cerebral blood flow than measurements in arteries. Therefore, they correlate better with clinical outcome in head trauma and subarachnoid hemorrhage. Transorbital sonography with measurement of the optic nerve sheath diameter and optic disk elevation has evolved to a valuable point of care diagnostic tool in idiopathic intracranial hypertension. In cerebral vein and sinus thrombosis ultrasound is at best a supplementary diagnostic tool, which may have a value in patient follow-up.
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Affiliation(s)
- Erwin Stolz
- Medical Faculty, Justus-Liebig-University Giessen, Germany
- Neurologic Group Practice, Frankfurt/Main, Germany
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13
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The putative role of trigemino-vascular system in brain perfusion homeostasis and the significance of the migraine attack. Neurol Sci 2022; 43:5665-5672. [PMID: 35802218 PMCID: PMC9385793 DOI: 10.1007/s10072-022-06200-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/01/2022] [Indexed: 11/23/2022]
Abstract
Besides representing the place where a migraine attack generates, what is the physiological role of peptidergic control of arteriolar caliber within the trigemino-vascular system? Considering that the shared goal of most human CGRP-based neurosensory systems is the protection from an acute threat, especially if hypoxic, what is the end meaning of a migraine attack? In this paper, we have reviewed available evidence on the possible role of the trigemino-vascular system in maintaining cerebral perfusion pressure homeostasis, despite the large physiological fluctuations in intracranial pressure occurring in daily life activities. In this perspective, the migraine attack is presented as the response to a cerebral hypoxic threat consequent to a deranged intracranial pressure control aimed at generating a temporary withdrawal from the environment with limitation of physical activity, a condition required to promote the restoration of cerebral fluids dynamic balance.
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Melendez-Zaidi AE, Foroozan R, Orman G, Abid F. COVID-19 Vaccination May Provoke Intracranial Hypertension. JOURNAL OF PEDIATRIC NEUROLOGY 2022. [DOI: 10.1055/s-0042-1750788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
AbstractIn parallel to the spread of the novel severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2), there has been the growing recognition that active SARS-CoV-2 infection has the potential to effect both the peripheral and central nervous systems. When it comes to the SARS-CoV-2 vaccine, however, reporting has been more uncertain. As the vaccination rate has risen, we have seen a rise in rare neurological complications thought to be associated with the vaccination including acute transverse myelitis, Guillain–Barre syndrome, optic neuritis, and Tolosa–Hunt syndrome. The Centers for Disease Control and Prevention (CDC) estimates 98 confirmed cases of Guillain–Barre syndrome out of 12.6 million doses. Given the initial age limits of vaccination eligibility, most reports have been limited to the adult population. Here, we report a case of intracranial hypertension (IH), evolving to fulminant IH in a healthy female after receiving the SARS-CoV-2 vaccine. While elevated intracranial pressure has been reported in the context of active SARS-CoV-2 infections and postinfection multisystem inflammatory syndrome (MIS-C), this is the first reported case of pediatric IH after vaccination alone.
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Affiliation(s)
- Alexandria E. Melendez-Zaidi
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, United States
| | - Rod Foroozan
- Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States
| | - Gunes Orman
- Edward B. Singleton Department of Radiology, Texas Children's Hospital, Houston, Texas, United States
| | - Farida Abid
- Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, United States
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15
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Pan DW, Vanstrum E, Doherty JK. Idiopathic Intracranial Hypertension: Implications for the Otolaryngologist. Otolaryngol Clin North Am 2022; 55:579-594. [PMID: 35490040 DOI: 10.1016/j.otc.2022.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Idiopathic intracranial hypertension (IIH) is a triad of headaches, visual changes, and papilledema in the absence of a secondary cause for elevated intracranial pressure. There is an association with obesity, and the incidence is rising in parallel with the obesity epidemic. Sometimes these patients present to an otolaryngologist with complaints like tinnitus, dizziness, hearing loss, and otorrhea or rhinorrhea from cerebrospinal fluid leak. IIH diagnosis in conjunction with neurology and ophthalmology, including neuroimaging and lumbar puncture with opening pressure, is key to managing of this condition. Otolaryngologists should recognize IIH as a possible diagnosis and initiate appropriate referrals and treatment.
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Affiliation(s)
- Dorothy W Pan
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Erik Vanstrum
- Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Joni K Doherty
- Caruso Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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16
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Togni C, Fierz F, Pohl H, Weber KP, Wegener S. [CME: Idiopathic Intracranial Hypertension]. PRAXIS 2022; 111:250-258. [PMID: 35414254 DOI: 10.1024/1661-8157/a003838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
CME: Idiopathic Intracranial Hypertension Abstract. Idiopathic intracranial hypertension is a pressure-induced secondary headache disorder and optic neuropathy. It primarily affects obese women of childbearing age and poses an interdisciplinary challenge both diagnostically and therapeutically. The most common symptom of this disorder are headaches frequently accompanied by photo- and/or phonophobia, whose semiology often resembles that of migraine, followed by transient visual obscurations and pulsatile tinnitus. While protection of visual acuity and visual fields are of first therapeutical priority, adequate headache treatment also plays a key role. In the majority of cases, conservative treatment including weight loss and pharmacological therapy is sufficient. In case of a fulminant disease course or loss of visual function, interventional strategies can be applied additionally. Headache treatment is guided by the predominant semiology.
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Affiliation(s)
- Claudio Togni
- Klinik für Neurologie, Universitätsspital Zürich und Universität Zürich, Zürich, Schweiz
| | - Fabienne Fierz
- Augenklinik, Universitätsspital Zürich und Universität Zürich, Zürich, Schweiz
| | - Heiko Pohl
- Klinik für Neurologie, Universitätsspital Zürich und Universität Zürich, Zürich, Schweiz
| | - Konrad P Weber
- Klinik für Neurologie, Universitätsspital Zürich und Universität Zürich, Zürich, Schweiz
- Augenklinik, Universitätsspital Zürich und Universität Zürich, Zürich, Schweiz
| | - Susanne Wegener
- Klinik für Neurologie, Universitätsspital Zürich und Universität Zürich, Zürich, Schweiz
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17
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A perspective on spaceflight associated neuro-ocular syndrome causation secondary to elevated venous sinus pressure. NPJ Microgravity 2022; 8:3. [PMID: 35169156 PMCID: PMC8847421 DOI: 10.1038/s41526-022-00188-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 01/21/2022] [Indexed: 11/17/2022] Open
Abstract
Spaceflight associated neuro-ocular syndrome (SANS) alters the vision of astronauts during long-duration spaceflights. There is controversy regarding SANS being similar to patients with idiopathic intracranial hypertension (IIH). IIH has been shown to be due to an elevation in venous sinus pressure. The literature suggests an increase in jugular vein pressure secondary to a headward shift of fluid occurs in SANS but this may not be enough to significantly alter the intracranial pressure (ICP). The literature regarding cardiac output and cerebral blood flow (CBF) in long-duration spaceflight is contradictory, however, more recent data suggests increased flow. Recent modelling has shown that an increase in CBF can significantly increase sinus pressure. The purpose of the present paper is to review the SANS vascular dynamics literature and through mathematical modelling suggest the possible underlying cause of SANS as an elevation in venous sinus pressure, secondary to the redistribution of fluids towards the head, together with a significant increase in pressure drop across the venous system related to the CBF.
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18
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Rosenberg MJ, Coker MA, Taylor JA, Yazdani M, Matheus MG, Blouin CK, Al Kasab S, Collins HR, Roberts DR. Comparison of Dural Venous Sinus Volumes Before and After Flight in Astronauts With and Without Spaceflight-Associated Neuro-Ocular Syndrome. JAMA Netw Open 2021; 4:e2131465. [PMID: 34705011 PMCID: PMC8552058 DOI: 10.1001/jamanetworkopen.2021.31465] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
IMPORTANCE Spaceflight-associated neuro-ocular syndrome (SANS) occurs in 40% to 60% of National Aeronautics and Space Administration (NASA) International Space Station (ISS) astronauts who present postflight with ophthalmological findings and elevated intracranial pressure. The etiology of SANS is unknown; it is hypothesized that venous outflow congestion from the head and neck occurs because of microgravity, which is supported by the finding of internal jugular vein stagnant flow and thrombosis in some astronauts, but the impact on intracranial dural venous sinus structures remains unknown. OBJECTIVES To clarify the potential risk of retrograde extension of clot intracranially among astronauts with internal jugular venous thrombosis by evaluating intracranial venous structures following spaceflight and to assess for any association between intracranial venous congestion and SANS. DESIGN, SETTING, AND PARTICIPANTS This retrospective cohort study of all NASA astronauts who had undergone magnetic resonance (MR) venography at the time of the study included quantitative and qualitative assessments of the intracranial venous system on preflight and postflight MR venograms. Data were collected a mean (SD) of 525.8 (187.5) days before spaceflight and 2.0 (1.5) days after return to Earth. A semiautomated segmentation of the venogram images was used, which was then compared with a neuroradiologist's assessment. EXPOSURES A mean (SD) 184.3 (66.0) days of ISS spaceflight missions. MAIN OUTCOMES AND MEASURES Dural venous sinus volumes before and after spaceflight. RESULTS A total of 12 astronauts (2 [16.67%] women; 10 [83.33%] men), with a mean (SD) age of 47.8 (5.8) years, were included. Overall, 4 astronauts (33.33%) met the diagnostic criteria for SANS. No dural venous sinus thrombosis was detected for any astronaut. Astronauts with SANS had significantly greater median (range) preflight to postflight increases in volume vs astronauts without SANS for all 3 venous sinus structures: superior sagittal sinus (13.40% [8.70% to 17.47%] vs -2.66% [-15.84% to 5.31%,]; P = .004), right transverse/sigmoid sinus (17.15% [7.63% to 30.08%] vs 0.77% [-14.98% to 15.12%]; P = .02), and left transverse/sigmoid sinus (9.40% [5.20% to 15.50%] vs -1.40% [-14.20% to 12.50%]; P = .03). There was a positive correlation between the neuroradiologist's evaluation and the semiautomated method for the superior sagittal sinus (rpb = 0.64; P = .02) and the right transverse/sigmoid sinus (rpb = 0.58; P = .050). CONCLUSIONS AND RELEVANCE These findings, in conjunction with the growing body of evidence of abnormal blood flow dynamics during spaceflight, suggest an association between intracranial venous congestion and SANS. Thus, there is an implication that individuals with increased venous sinus compliance may be at increased risk of developing SANS. These findings should be confirmed in a larger astronaut population and may contribute to understanding disorders of intracranial venous outflow on Earth.
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Affiliation(s)
- Mark J. Rosenberg
- Department of Neurology, Medical University of South Carolina, Charleston
| | - Michael A. Coker
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
| | - James A. Taylor
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
| | - Milad Yazdani
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
| | - M. Gisele Matheus
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
| | - Christopher K. Blouin
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
| | - Sami Al Kasab
- Department of Neurology, Medical University of South Carolina, Charleston
- Department of Neurosurgery, Medical University of South Carolina, Charleston
| | - Heather R. Collins
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
| | - Donna R. Roberts
- Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston
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19
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Sansone M, De Angelis M, Bilo L, Bonavita V, De Simone R. Idiopathic Intracranial Hypertension Without Intracranial Hypertension. Neurol Clin Pract 2021; 11:e350-e352. [PMID: 34484911 DOI: 10.1212/cpj.0000000000001022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/22/2020] [Indexed: 11/15/2022]
Affiliation(s)
- Mattia Sansone
- Department of Neuroscience (MS, LB, RDS), Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples; Department of Neurosurgery (MDA), IRCCS "Neuromed," Pozzilli (IS); and Istituto di Diagnosi e Cura Hermitage Capodimonte (VB), Naples, Italy
| | - Michelangelo De Angelis
- Department of Neuroscience (MS, LB, RDS), Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples; Department of Neurosurgery (MDA), IRCCS "Neuromed," Pozzilli (IS); and Istituto di Diagnosi e Cura Hermitage Capodimonte (VB), Naples, Italy
| | - Leonilda Bilo
- Department of Neuroscience (MS, LB, RDS), Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples; Department of Neurosurgery (MDA), IRCCS "Neuromed," Pozzilli (IS); and Istituto di Diagnosi e Cura Hermitage Capodimonte (VB), Naples, Italy
| | - Vincenzo Bonavita
- Department of Neuroscience (MS, LB, RDS), Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples; Department of Neurosurgery (MDA), IRCCS "Neuromed," Pozzilli (IS); and Istituto di Diagnosi e Cura Hermitage Capodimonte (VB), Naples, Italy
| | - Roberto De Simone
- Department of Neuroscience (MS, LB, RDS), Reproductive Sciences and Odontostomatology, Headache Centre, University Federico II of Naples; Department of Neurosurgery (MDA), IRCCS "Neuromed," Pozzilli (IS); and Istituto di Diagnosi e Cura Hermitage Capodimonte (VB), Naples, Italy
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20
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Sundholm A, Burkill S, Waldenlind E, Bahmanyar S, Nilsson Remahl AIM. A national Swedish case-control study investigating incidence and factors associated with idiopathic intracranial hypertension. Cephalalgia 2021; 41:1427-1436. [PMID: 34407644 PMCID: PMC8619724 DOI: 10.1177/03331024211024166] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To study the incidence of idiopathic intracranial hypertension in Sweden and to explore whether previously proposed risk factors are associated with idiopathic intracranial hypertension by investigating the odds of exposure one year prior to diagnosis in patients compared to controls. METHODS Using Swedish health care registers and validated diagnostic algorithms, idiopathic intracranial hypertension patients diagnosed between 2000-2016 were compared with randomly selected matched controls, five from the general population and five with obesity. RESULTS We identified 902 idiopathic intracranial hypertension patients and 4510 matched individuals in each control group. Mean incidence among inhabitants ≥18 years of age was 0.71 per 100,000; rising from 0.53 in 2000-2005 to 0.95 in 2012-2016. There were increased odds for idiopathic intracranial hypertension patients compared to general population for exposure to: kidney failure (odds ratio =13.2 (4.1-42.0)), arterial hypertension (odds ratio =17.5 (10.5-29.3)), systemic lupus erythematosus (odds ratio =13.8 (4.3-44.7)), tetracyclines, sulphonamides, lithium, and corticosteroids. In obese controls, odds ratios were also significantly increased for these exposures. Hormonal contraceptive use and exposure to pregnancy did not appear to be associated factors for idiopathic intracranial hypertension development. CONCLUSIONS The incidence of idiopathic intracranial hypertension in Sweden is lower relative to reports from other countries but is on the rise. This case-control study confirms several previously reported risk factors associated with idiopathic intracranial hypertension.
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Affiliation(s)
- Anna Sundholm
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden and Department of Neurology, 59562Karolinska University Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Sarah Burkill
- Saw Swee Hock School of Public Health, 37580National University of Singapore, National University of Singapore, Singapore
| | - Elisabet Waldenlind
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden and Department of Neurology, 59562Karolinska University Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Shahram Bahmanyar
- Centre for Pharmacoepidemiology, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden and Centre for Phychiatry Research, Karolinska Institutet, Stockholm, Sweden
| | - A Ingela M Nilsson Remahl
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden and Department of Neurology, 59562Karolinska University Hospital, Karolinska University Hospital, Stockholm, Sweden
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21
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Stoutin J, Fan J. Idiopathic Intracranial Hypertension and Multiple Sclerosis Overlap. Cureus 2021; 13:e16305. [PMID: 34381659 PMCID: PMC8352602 DOI: 10.7759/cureus.16305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2021] [Indexed: 12/22/2022] Open
Abstract
Idiopathic intracranial hypertension (IIH) and multiple sclerosis (MS) occur with a higher incidence in women of childbearing age and may be associated with other clinical entities. Both disease processes alter cerebrospinal fluid (CSF) dynamics and may present similarly with headache and visual changes. We report a case of a 33-year-old morbidly obese woman who developed progressive worsening blurry vision and unilateral temporal headache. She was found to have papilledema which prompted workup for intracranial hypertension. Her imaging and CSF findings were suggestive of a demyelinating process such as MS in addition to IIH.
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Affiliation(s)
- Jaqueline Stoutin
- Internal Medicine, Baylor Scott & White Medical Center - Temple, Temple, USA
| | - Jerry Fan
- Internal Medicine, Baylor Scott & White Medical Center - Temple, Temple, USA
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Kaya FS, Bayram E, İnci E. Evaluating the optic nerve stiffness and optic nerve sheath diameter in idiopathic intracranial hypertension patients after the resolution of papilledema. Neurol Sci 2021; 42:5165-5170. [PMID: 33788047 DOI: 10.1007/s10072-021-05208-z] [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: 12/25/2020] [Accepted: 03/19/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The objective of this study was to investigate the optic nerve's elastic properties and optic nerve sheath diameter (ONSD) using shear-wave elastography (SWE) in patients with idiopathic intracranial hypertension (IIH) compared to healthy individuals. METHODS The study included 22 IIH patients and 15 healthy subjects. SWEs were performed on the optic nerve and ONSD, and optic nerve stiffness were measured. RESULTS The patients with IIH demonstrated higher stiffness of the optic nerve compared with that of healthy volunteers (P < 0.001). The optic nerve sheath diameter of the optic nerve in the IIH group was significantly larger than that in the control group (P < 0.001). There was no correlation between the disease duration and SWE values in the Spearman correlation test. CONCLUSION These findings suggest that ONSD can be used as a follow-up method in the treatment of IIH. However, there was not any correlation between the disease duration and SWE-based stiffness measurement of the optic nerve.
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Affiliation(s)
- Fatma Selin Kaya
- Ophthalmology Department, Çam and Sakura City Hospital, Başakşehir Olimpiyat Bulvarı Yolu, 34480, Başakşehir, İstanbul, Turkey.
| | - Ersoy Bayram
- Radiology Department, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Bakirkoy, İstanbul, Turkey
| | - Ercan İnci
- Radiology Department, Bakirkoy Dr Sadi Konuk Training and Research Hospital, Bakirkoy, İstanbul, Turkey
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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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Headache in idiopathic intracranial hypertension. A CGRP-dependent head pain? Neurol Sci 2020; 41:417-421. [DOI: 10.1007/s10072-020-04641-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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The Incidence of Transverse Sinus Stenosis in Multiple Sclerosis: Further Evidence of Pulse Wave Encephalopathy. Mult Scler Relat Disord 2020; 46:102524. [DOI: 10.1016/j.msard.2020.102524] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023]
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Bateman GA, Subramanian GM, Yap SL, Bateman AR. The incidence of obesity, venous sinus stenosis and cerebral hyperaemia in children referred for MRI to rule out idiopathic intracranial hypertension at a tertiary referral hospital: a 10 year review. Fluids Barriers CNS 2020; 17:59. [PMID: 32993698 PMCID: PMC7526159 DOI: 10.1186/s12987-020-00221-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/22/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Children referred to a tertiary hospital for the indication, "rule out idiopathic intracranial hypertension (IIH)" may have an increased risk of raised venous sinus pressure. An increase in sinus pressure could be due to obesity, venous outflow stenosis or cerebral hyperemia. The purpose of this paper is to define the incidence of each of these variables in these children. METHODS Following a data base review, 42 children between the ages of 3 and 15 years were found to have been referred over a 10 year period. The body mass index was assessed. The cross sectional areas and circumferences of the venous sinuses were measured at 4 levels to calculate the hydraulic and effective diameters. The arterial inflow, sagittal and straight sinus outflows were measured. Automatic cerebral volumetry allowed the brain volume and cerebral blood flow (CBF) to be calculated. The optic nerve sheath diameter was used as a surrogate marker of raised intracranial pressure (ICP). The sagittal sinus percentage venous return was used as a surrogate marker of elevated venous pressure. Age and sex matched control groups were used for comparison. RESULTS Compared to controls, the obesity rates were not significantly different in this cohort. Compared to controls, those at risk for IIH had a 17% reduction in transverse sinus and 14% reduction in sigmoid sinus effective cross sectional area (p = 0.005 and 0.0009). Compared to controls, the patients at risk for IIH had an arterial inflow increased by 34% (p < 0.0001) with a 9% larger brain volume (p = 0.02) giving an increase in CBF of 22% (p = 0.005). The sagittal and straight sinus venous return were reduced by 11% and 4% respectively (p < 0.0001 and 0.0009) suggesting raised venous sinus pressure. Forty five percent of the patients were classified as hyperemic and these had optic nerve sheath diameters 17% larger than controls (p < 0.0002) suggesting raised ICP. CONCLUSION In children with the chronic headache/ IIH spectrum, the highest associations were with cerebral hyperemia and mild venous sinus stenosis. Obesity was not significantly different in this cohort. There is evidence to suggest hyperemia increases the venous sinus pressure and ICP.
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Affiliation(s)
- Grant Alexander Bateman
- Department of Medical Imaging, John Hunter Hospital, Newcastle Region Mail Center, Locked Bag 1, Newcastle, NSW, 2310, Australia. .,Newcastle University Faculty of Health, Callaghan Campus, Newcastle, NSW, Australia.
| | | | - Swee Leong Yap
- Department of Medical Imaging, John Hunter Hospital, Newcastle Region Mail Center, Locked Bag 1, Newcastle, NSW, 2310, Australia
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Ghali MGZ, Marchenko V, Yaşargil MG, Ghali GZ. Structure and function of the perivascular fluid compartment and vertebral venous plexus: Illumining a novel theory on mechanisms underlying the pathogenesis of Alzheimer's, cerebral small vessel, and neurodegenerative diseases. Neurobiol Dis 2020; 144:105022. [PMID: 32687942 DOI: 10.1016/j.nbd.2020.105022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 06/13/2020] [Accepted: 07/15/2020] [Indexed: 01/14/2023] Open
Abstract
Blood dynamically and richly supplies the cerebral tissue via microvessels invested in pia matter perforating the cerebral substance. Arteries penetrating the cerebral substance derive an investment from one or two successive layers of pia mater, luminally apposed to the pial-glial basal lamina of the microvasculature and abluminally apposed to a series of aquaporin IV-studded astrocytic end feet constituting the soi-disant glia limitans. The full investment of successive layers forms the variably continuous walls of the periarteriolar, pericapillary, and perivenular divisions of the perivascular fluid compartment. The pia matter disappears at the distal periarteriolar division of the perivascular fluid compartment. Plasma from arteriolar blood sequentially transudates into the periarteriolar division of the perivascular fluid compartment and subarachnoid cisterns in precession to trickling into the neural interstitium. Fluid from the neural interstitium successively propagates into the venules through the subarachnoid cisterns and perivenular division of the perivascular fluid compartment. Fluid fluent within the perivascular fluid compartment flows gegen the net direction of arteriovenular flow. Microvessel oscillations at the central tendency of the cerebral vasomotion generate corresponding oscillations of within the surrounding perivascular fluid compartment, interposed betwixt the abluminal surface of the vessels and internal surface of the pia mater. The precise microanatomy of this most fascinating among designable spaces has eluded the efforts of various investigators to interrogate its structure, though most authors non-consensusly concur the investing layers effectively and functionally segregate the perivascular and subarachnoid fluid compartments. Enlargement of the perivascular fluid compartment in a variety of neurological disorders, including senile dementia of the Alzheimer's type and cerebral small vessel disease, may alternately or coordinately constitute a correlative marker of disease severity and a possible cause implicated in the mechanistic pathogenesis of these conditions. Venular pressures modulating oscillatory dynamic flow within the perivascular fluid compartment may similarly contribute to the development of a variety among neurological disorders. An intimate understanding of subtle features typifying microanatomy and microphysiology of the investing structures and spaces of the cerebral microvasculature may powerfully inform mechanistic pathophysiology mediating a variety of neurovascular ischemic, neuroinfectious, neuroautoimmune, and neurodegenerative diseases.
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Affiliation(s)
- Michael George Zaki Ghali
- Department of Neurological Surgery, University of California San Francisco, 505 Parnassus Street, San Francisco, CA 94143, United States; Department of Neurobiology and Anatomy, 2900 W. Queen Lane, Philadelphia, PA 19129, United States.
| | - Vitaliy Marchenko
- Department of Neurobiology and Anatomy, 2900 W. Queen Lane, Philadelphia, PA 19129, United States; Department of Neurophysiology, Bogomoletz Institute, Kyiv, Ukraine; Department of Neuroscience, Московский государственный университет имени М. В., Ломоносова GSP-1, Leninskie Gory, Moscow 119991, Russian Federation
| | - M Gazi Yaşargil
- Department of Neurosurgery, University Hospital Zurich Rämistrasse 100, 8091 Zurich, Switzerland
| | - George Zaki Ghali
- United States Environmental Protection Agency, Arlington, Virginia, USA; Emeritus Professor of Toxicology, Purdue University, West Lafayette, Indiana, USA
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Abstract
BACKGROUND During the last decade, our understanding of cerebrospinal fluid (CSF) physiology has dramatically improved, thanks to the discoveries of both the glymphatic system and lymphatic vessels lining the dura mater in human brains. EVIDENCE ACQUISITION We detail the recent basic science findings in the field of CSF physiology and connect them with our current understanding of the pathophysiology of idiopathic intracranial hypertension (IIH). RESULTS Transverse sinus (TS) stenoses seem to play a major causative role in the symptoms of IIH, as a result of a decrease in the pressure gradient between the venous system and the subarachnoid space. However, the intracranial pressure can be highly variable among different patients, depending on the efficiency of the lymphatic system to resorb the CSF and on the severity of TS stenoses. It is likely that there is a subclinical form of IIH and that IIH without papilledema is probably under-diagnosed among patients with chronic migraines or isolated tinnitus. CONCLUSIONS IIH can be summarized in the following pathological triad: restriction of the venous CSF outflow pathway-overflow of the lymphatic CSF outflow pathway-congestion of the glymphatic system. To better encompass all the stages of IIH, it is likely that the Dandy criteria need to be updated and that perhaps renaming IIH should be considered.
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An update on idiopathic intracranial hypertension in adults: a look at pathophysiology, diagnostic approach and management. J Neurol 2020; 268:3249-3268. [PMID: 32462350 DOI: 10.1007/s00415-020-09943-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 02/06/2023]
Abstract
Idiopathic intracranial hypertension is a neurological syndrome determined by a rise in intracranial pressure without a detectable cause. Course and prognosis may be changeable, requiring a multidisciplinary approach for its diagnosis and management. Although its precise pathogenesis is still unknown, many studies have been carried out to define the possible causal and associated factors, such as retinoids, steroid hormones, body mass index and recent weight gains, cytokines and adipokines levels. The clinical presentation can be variable including chronic headache, disturbance of vision, diplopia and tinnitus. Even if papilloedema is considered the most specific sign, it could not be observed in more than 5% of patients during the evaluation of the fundus oculi. Neuroradiological signs acquire greater importance in patients who do not present papilloedema and may suggest the diagnosis of idiopathic intracranial hypertension. Other assessments can be useful in the diagnostic process, such as optical coherence tomography, visual evoked potentials, ocular ultrasonography and fundus fluorescein angiography and autofluorescence. Nonetheless, cerebrospinal fluid pressure measurement is required to establish a definite diagnosis. Management may be different, since surgical procedures or lumbar punctures are often required when symptoms develop rapidly leading to a loss of visual function. Apart from these cases, patients can be treated with a pharmacological approach and low-calorie diet, but they also need to be monitored over time since relapses years later are not uncommon.
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Salerni F, Repetto R, Harris A, Pinsky P, Prud’homme C, Szopos M, Guidoboni G. Biofluid modeling of the coupled eye-brain system and insights into simulated microgravity conditions. PLoS One 2019; 14:e0216012. [PMID: 31412033 PMCID: PMC6693745 DOI: 10.1371/journal.pone.0216012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 07/08/2019] [Indexed: 12/23/2022] Open
Abstract
This work aims at investigating the interactions between the flow of fluids in the eyes and the brain and their potential implications in structural and functional changes in the eyes of astronauts, a condition also known as spaceflight associated neuro-ocular syndrome (SANS). To this end, we propose a reduced (0-dimensional) mathematical model of fluid flow in the eyes and brain, which is embedded into a simplified whole-body circulation model. In particular, the model accounts for: (i) the flows of blood and aqueous humor in the eyes; (ii) the flows of blood, cerebrospinal fluid and interstitial fluid in the brain; and (iii) their interactions. The model is used to simulate variations in intraocular pressure, intracranial pressure and blood flow due to microgravity conditions, which are thought to be critical factors in SANS. Specifically, the model predicts that both intracranial and intraocular pressures increase in microgravity, even though their respective trends may be different. In such conditions, ocular blood flow is predicted to decrease in the choroid and ciliary body circulations, whereas retinal circulation is found to be less susceptible to microgravity-induced alterations, owing to a purely mechanical component in perfusion control associated with the venous segments. These findings indicate that the particular anatomical architecture of venous drainage in the retina may be one of the reasons why most of the SANS alterations are not observed in the retina but, rather, in other vascular beds, particularly the choroid. Thus, clinical assessment of ocular venous function may be considered as a determinant SANS factor, for which astronauts could be screened on earth and in-flight.
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Affiliation(s)
- Fabrizia Salerni
- Department of Mathematical, Physical and Computer Sciences, University of Parma, Parma, Italy
| | - Rodolfo Repetto
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Alon Harris
- Eugene and Marilyn Glick Eye Institute and Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN, United States of America
| | - Peter Pinsky
- Department of Mechanical Engineering, Stanford University, Stanford, CA, United States of America
| | - Christophe Prud’homme
- Institute of Advanced Mathematical Research UMR 7501, University of Strasbourg CNRS, Strasbourg, France
| | - Marcela Szopos
- Laboratoire MAP5 (UMR CNRS 8145), Université Paris Descartes, Sorbonne Paris Cité, France
| | - Giovanna Guidoboni
- Department of Electrical Engineering and Computer Science, Department of Mathematics, University of Missouri, Columbia, MO, United States of America
- * E-mail:
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