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Otu E, Şen S, Örmeci T, Yüzbaşıoğlu N. Association between vertebral artery dominance and basilar artery curvature in migraineurs: an anatomical magnetic resonance imaging study. Neuroradiol J 2024; 37:314-322. [PMID: 38153033 PMCID: PMC11138339 DOI: 10.1177/19714009231224444] [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] [Indexed: 12/29/2023] Open
Abstract
BACKGROUND AND PURPOSES Numerous studies demonstrate a link between cerebrovascular alterations and migraine pathogenesis. We investigated the association between migraine and vertebral artery dominance (VAD), basilar artery (BA) curvature, and elongation. MATERIALS AND METHODS This cross-sectional MRI study included 74 migraine patients and 74 control subjects aged between 18 and 55 years. Diameters of the intracranial part of the vertebral artery (VA) and BA, height of the BA bifurcation, and total lateral displacement of the BA were measured. In addition, we investigated the directional relationship between VAD and BA curvature. RESULTS There were no statistically significant differences between the groups regarding VA and BA diameters and total lateral displacement of the BA. The height of the BA bifurcation was found to be significantly higher in migraine patients compared to controls (p = 0.002). The left-side VAD was more frequent in migraine patients compared to control subjects (60.8% (45/74) vs 41.9% (31/74), p = 0.001). In migraine patients, particularly those with aura (MwA) patients, with left-side VAD, the rate of BA displacement to the right side is significantly higher than those with right-side VAD or non-VAD (p = 0.022). Also, we found that total lateral displacement of the BA is correlated with VA asymmetry in patients with MwA (r = 0.538, p = 0.007). CONCLUSION VAD and its opposite-directional relationship with the lateral displacement of the BA may be associated with migraine pathophysiology. Together with aging, this association may contribute to changes in the vertebrobasilar system (VBS) geometry which may result in increased risk for posterior circulation infarction (PCI) in migraineurs.
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Affiliation(s)
- Ebru Otu
- Department of Anatomy, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Selva Şen
- Department of Anatomy, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Tuğrul Örmeci
- Department of Radiology, Istanbul Medipol University, Istanbul, Turkey
| | - Neslihan Yüzbaşıoğlu
- Department of Anatomy, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
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Biose IJ, Oremosu J, Bhatnagar S, Bix GJ. Promising Cerebral Blood Flow Enhancers in Acute Ischemic Stroke. Transl Stroke Res 2023; 14:863-889. [PMID: 36394792 PMCID: PMC10640530 DOI: 10.1007/s12975-022-01100-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: 09/28/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/18/2022]
Abstract
Ischemic stroke presents a major global economic and public health burden. Although recent advances in available endovascular therapies show improved functional outcome, a good number of stroke patients are either ineligible or do not have access to these treatments. Also, robust collateral flow during acute ischemic stroke independently predicts the success of endovascular therapies and the outcome of stroke. Hence, adjunctive therapies for cerebral blood flow (CBF) enhancement are urgently needed. A very clear overview of the pial collaterals and the role of genetics are presented in this review. We review available evidence and advancement for potential therapies aimed at improving CBF during acute ischemic stroke. We identified heme-free soluble guanylate cyclase activators; Sanguinate, remote ischemic perconditioning; Fasudil, S1P agonists; and stimulation of the sphenopalatine ganglion as promising potential CBF-enhancing therapeutics requiring further investigation. Additionally, we outline and discuss the critical steps required to advance research strategies for clinically translatable CBF-enhancing agents in the context of acute ischemic stroke models.
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Affiliation(s)
- Ifechukwude Joachim Biose
- Department of Neurosurgery, Clinical Neuroscience Research Center, Tulane University School of Medicine, 131 S. Robertson, Ste 1300, Room 1349, New Orleans, LA, 70112, USA
| | - Jadesola Oremosu
- School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Somya Bhatnagar
- School of Medicine, Tulane University, New Orleans, LA, 70112, USA
| | - Gregory Jaye Bix
- Department of Neurosurgery, Clinical Neuroscience Research Center, Tulane University School of Medicine, 131 S. Robertson, Ste 1300, Room 1349, New Orleans, LA, 70112, USA.
- Tulane Brain Institute, Tulane University, New Orleans, LA, 70112, USA.
- Department of Neurology, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
- School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, 70122, USA.
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Bouchier B, Demarquay G, Dailler F, Lukaszewicz AC, Ritzenthaler T. Course of Headaches and Predictive Factors Associated With Analgesia Failure Following Spontaneous Subarachnoid Hemorrhage: A Prospective Cohort Study. J Neurosurg Anesthesiol 2023; 35:333-337. [PMID: 35499145 DOI: 10.1097/ana.0000000000000843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 03/09/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Headache is the most common presenting symptom of spontaneous subarachnoid hemorrhage and managing this acute pain can be challenging. The aim of this study was to describe the course of headaches and factors associated with analgesic failure in patients with spontaneous subarachnoid hemorrhage. METHODS We conducted a prospective observational study in patients admitted to a neurocritical care unit (between April 2016 and March 2017) within 48 hours of spontaneous subarachnoid hemorrhage. Headache intensity was assessed using a Numerical Pain Rating Scale (NPRS) ranging from 0 to 10. Analgesic failure was defined as any day average NPRS score >3 after 72 hours of hospitalization despite analgesic treatment. RESULTS Sixty-three patients were included in the analysis. Thirty-six (56.25%) patients experienced at least 1 episode of severe headache (NPRS ≥7), and 40 (63.5%) patients still reported moderate to severe headache on the final day of the study (day 12). Forty-six (73.0%) patients required treatment with opioids and 37 (58.7%) experienced analgesic failure. Multivariable analysis showed that analgesic failure was associated with smoking history (odds ratio [OR]=4.31, 95% confidence interval [CI]: 1.23-17.07; P =0.027), subarachnoid blood load (OR=1.11, 95% CI: 1.01-1.24; P =0.032) and secondary complications, including rebleeding, hydrocephalus, delayed cerebral ischemia, hyponatremia, or death (OR=4.06, 95% CI: 1.17-15.77; P =0.032). CONCLUSIONS Headaches following spontaneous subarachnoid hemorrhage are severe and persist during hospitalization despite standard pain-reducing strategies. We identified risk factors for analgesic failure in this population.
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Affiliation(s)
| | - Geneviève Demarquay
- Fontional Neurology and Epileptology Unit, Pierre Wertheimer Hospital, Hospices Civils de Lyon
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard-Lyon 1, Bron
| | | | - Anne-Claire Lukaszewicz
- Neurocrirtical Care Unit
- Université Claude Bernard-Lyon 1
- Université Claude Bernard Lyon 1/Hospices Civils de Lyon/bioMérieux, Lyon, France
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Toma A, De La Garza Ramos R, Altschul DJ. Risk Factors for Headache Disorder in Patients With Unruptured Intracranial Aneurysms. Cureus 2023; 15:e38385. [PMID: 37265887 PMCID: PMC10231404 DOI: 10.7759/cureus.38385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2023] [Indexed: 06/03/2023] Open
Abstract
OBJECTIVE Headache disorders are a prevalent yet frequently underestimated issue in patients with unruptured intracranial aneurysms (UIAs). The primary aim of this study is to systematically examine the incidence, specific characteristics, and associated risk factors of headache disorders in the context of individuals diagnosed with UIAs. Through this investigation, we hope to contribute valuable insights to the current understanding of this complex relationship and potentially inform future diagnostic and treatment approaches. METHODS Data from 146 consecutive patients harboring UIAs were evaluated. The location and morphological characteristics of the aneurysm were analyzed. Factors associated with headache incidence and methods of treatment were investigated. The headache pattern in 48 patients was assessed using self-reported questionnaires. RESULTS A total of 146 patients were identified. Out of 146 patients, 95 (65%) were in the Headache Group (HG) and 51 (35%) were asymptomatic and in the No Headache Group (NHG). Factors associated with a higher likelihood of headache were past or current tobacco, alcohol, and illicit drug use (p=0.029). On average, patients had 1.49 (SD=1) aneurysms in the HG and 1.43 (SD=.92) in the NHG group, respectively. In our series, the size of aneurysms, the status of the aneurysm (treated vs untreated), and the method of treatment did not significantly differ between the groups. There was a high incidence of headaches in patients with aneurysms of the ophthalmic segment (C6) of the internal carotid artery (ICA) and sphenoidal segment (M1) of the middle cerebral artery (MCA). Of 48 patients that completed headache questionnaires, 25 had headaches on more than 15 days a month. The majority of participants (85.4%) reported the severity of their pain as being greater than 5 on a scale of 10, while one-third (33.3%) experienced the maximum pain level of 10 out of 10. CONCLUSION Headache more often occurs in patients with aneurysms of the ophthalmic segment (C6) of the ICA and sphenoidal segment (M1) of the MCA. Its distinctive features are deep pain for more than 15 days a month. Although the treatment of aneurysms reduces the risk of aneurysmal rupture, its efficacy in relieving the headache is still uncertain.
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Affiliation(s)
- Aureliana Toma
- Neurological Surgery, Albert Einstein College of Medicine, Bronx, USA
| | | | - David J Altschul
- Neurological Surgery, Albert Einstein College of Medicine, Bronx, USA
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Tu T, Peng Z, Song Z, Ma Y, Zhang H. New insight into DAVF pathology—Clues from meningeal immunity. Front Immunol 2022; 13:858924. [PMID: 36189220 PMCID: PMC9520480 DOI: 10.3389/fimmu.2022.858924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 08/26/2022] [Indexed: 11/13/2022] Open
Abstract
In recent years, with the current access in techniques, studies have significantly advanced the knowledge on meningeal immunity, revealing that the central nervous system (CNS) border acts as an immune landscape. The latest concept of meningeal immune system is a tertiary structure, which is a comprehensive overview of the meningeal immune system from macro to micro. We comprehensively reviewed recent advances in meningeal immunity, particularly the new understanding of the dural sinus and meningeal lymphatics. Moreover, based on the clues from the meningeal immunity, new insights were proposed into the dural arteriovenous fistula (DAVF) pathology, aiming to provide novel ideas for DAVF understanding.
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Affiliation(s)
- Tianqi Tu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhenghong Peng
- Department of Health Management Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zihao Song
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yongjie Ma
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing, China
- *Correspondence: Yongjie Ma, ; Hongqi Zhang,
| | - Hongqi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing, China
- *Correspondence: Yongjie Ma, ; Hongqi Zhang,
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Siebner HR, Funke K, Aberra AS, Antal A, Bestmann S, Chen R, Classen J, Davare M, Di Lazzaro V, Fox PT, Hallett M, Karabanov AN, Kesselheim J, Beck MM, Koch G, Liebetanz D, Meunier S, Miniussi C, Paulus W, Peterchev AV, Popa T, Ridding MC, Thielscher A, Ziemann U, Rothwell JC, Ugawa Y. Transcranial magnetic stimulation of the brain: What is stimulated? - A consensus and critical position paper. Clin Neurophysiol 2022; 140:59-97. [PMID: 35738037 PMCID: PMC9753778 DOI: 10.1016/j.clinph.2022.04.022] [Citation(s) in RCA: 111] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 03/14/2022] [Accepted: 04/15/2022] [Indexed: 12/11/2022]
Abstract
Transcranial (electro)magnetic stimulation (TMS) is currently the method of choice to non-invasively induce neural activity in the human brain. A single transcranial stimulus induces a time-varying electric field in the brain that may evoke action potentials in cortical neurons. The spatial relationship between the locally induced electric field and the stimulated neurons determines axonal depolarization. The induced electric field is influenced by the conductive properties of the tissue compartments and is strongest in the superficial parts of the targeted cortical gyri and underlying white matter. TMS likely targets axons of both excitatory and inhibitory neurons. The propensity of individual axons to fire an action potential in response to TMS depends on their geometry, myelination and spatial relation to the imposed electric field and the physiological state of the neuron. The latter is determined by its transsynaptic dendritic and somatic inputs, intrinsic membrane potential and firing rate. Modeling work suggests that the primary target of TMS is axonal terminals in the crown top and lip regions of cortical gyri. The induced electric field may additionally excite bends of myelinated axons in the juxtacortical white matter below the gyral crown. Neuronal excitation spreads ortho- and antidromically along the stimulated axons and causes secondary excitation of connected neuronal populations within local intracortical microcircuits in the target area. Axonal and transsynaptic spread of excitation also occurs along cortico-cortical and cortico-subcortical connections, impacting on neuronal activity in the targeted network. Both local and remote neural excitation depend critically on the functional state of the stimulated target area and network. TMS also causes substantial direct co-stimulation of the peripheral nervous system. Peripheral co-excitation propagates centrally in auditory and somatosensory networks, but also produces brain responses in other networks subserving multisensory integration, orienting or arousal. The complexity of the response to TMS warrants cautious interpretation of its physiological and behavioural consequences, and a deeper understanding of the mechanistic underpinnings of TMS will be critical for advancing it as a scientific and therapeutic tool.
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Affiliation(s)
- Hartwig R Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Department of Neurology, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark; Institute for Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Klaus Funke
- Department of Neurophysiology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Aman S Aberra
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Andrea Antal
- Department of Clinical Neurophysiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Sven Bestmann
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom; Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Robert Chen
- Krembil Brain Institute, University Health Network and Division of Neurology, University of Toronto, Toronto, Ontario, Canada
| | - Joseph Classen
- Department of Neurology, University of Leipzig, Leipzig, Germany
| | - Marco Davare
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom; Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Vincenzo Di Lazzaro
- Unit of Neurology, Neurophysiology, Neurobiology, Department of Medicine, Università Campus Bio-Medico di Roma, via Álvaro del Portillo 21, 00128 Rome, Italy
| | - Peter T Fox
- Research Imaging Institute, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Mark Hallett
- Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Anke N Karabanov
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Department of Nutrition and Exercise, University of Copenhagen, Copenhagen, Denmark
| | - Janine Kesselheim
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Mikkel M Beck
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Giacomo Koch
- Department of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy; Non-invasive Brain Stimulation Unit, Laboratorio di NeurologiaClinica e Comportamentale, Fondazione Santa Lucia IRCCS, Rome, Italy
| | - David Liebetanz
- Department of Clinical Neurophysiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Sabine Meunier
- Sorbonne Université, Faculté de Médecine, INSERM U 1127, CNRS 4 UMR 7225, Institut du Cerveau, F-75013, Paris, France
| | - Carlo Miniussi
- Center for Mind/Brain Sciences (CIMeC), University of Trento, Italy; Cognitive Neuroscience Section, IRCCS Centro San Giovanni di DioFatebenefratelli, Brescia, Italy
| | - Walter Paulus
- Department of Clinical Neurophysiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Angel V Peterchev
- Department of Biomedical Engineering, Duke University, Durham, NC, USA; Department of Psychiatry & Behavioral Sciences, School of Medicine, Duke University, Durham, NC, USA; Department of Electrical & Computer Engineering, Duke University, Durham, NC, USA; Department of Neurosurgery, School of Medicine, Duke University, Durham, NC, USA
| | - Traian Popa
- Center for Neuroprosthetics (CNP) and Brain Mind Institute (BMI), Swiss Federal Institute of Technology (EPFL), Geneva, Switzerland; Center for Neuroprosthetics (CNP) and Brain Mind Institute (BMI), Swiss Federal Institute of Technology (EPFL Valais), Clinique Romande de Réadaptation, Sion, Switzerland
| | - Michael C Ridding
- University of South Australia, IIMPACT in Health, Adelaide, Australia
| | - Axel Thielscher
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Ulf Ziemann
- Department of Neurology & Stroke, University Tübingen, Tübingen, Germany; Hertie Institute for Clinical Brain Research, University Tübingen, Tübingen, Germany
| | - John C Rothwell
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Yoshikazu Ugawa
- Department of Neurology, Fukushima Medical University, Fukushima, Japan; Fukushima Global Medical Science Centre, Advanced Clinical Research Centre, Fukushima Medical University, Fukushima, Japan
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Correlation between clinical severity and extent of autonomic cardiovascular impairment in the acute phase of subarachnoid hemorrhage. J Neurol 2022; 269:5541-5552. [PMID: 35723723 PMCID: PMC9467940 DOI: 10.1007/s00415-022-11220-w] [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: 02/22/2022] [Revised: 04/27/2022] [Accepted: 06/07/2022] [Indexed: 11/24/2022]
Abstract
Background and aim To assess associations between clinical severity and possible dysfunction of autonomic cardiovascular modulation within the acute phase after spontaneous subarachnoid hemorrhage (SAH). Methods In this prospective observational study, in 51 patients with spontaneous SAH, Hunt-and-Hess scores (H&H) were assessed and cardiovascular autonomic modulation was monitored within 24 h after SAH-onset. From 5 min time-series of R–R-intervals (RRI) and blood-pressure (BP) recordings, we calculated autonomic parameters including time-domain [RRI-coefficient-of-variation (RRI-CV) and square-root-of-the-mean-squared-differences-of-successive-RRIs (RMSSD)] and frequency-domain parameters [low- and high-frequency-powers of RRI- and BP-modulation (RRI-LF-, RRI-HF-, SBP-LF-powers) and RRI-total-powers]. Data were compared to those of 20 healthy volunteers. Results RRI- and BP-values did not differ between groups. Yet, parameters of sympathetic (RRI-LF-powers 141.0 (18.9–402.4) ms2 vs 442.3 (246.8–921.2) ms2, p = 0.001) and total autonomic modulation (RRI-CV 2.4 (1.2–3.7) ms2 vs 3.7 (3.1–5.3) ms2, p = 0.001) were significantly lower in patients than in controls. Subgroup analyses (patients with H&H < 3 vs H&H ≥ 3) and Spearman-rank-correlations revealed increasing loss of sympathetic (RRI-LF-powers 338.6 (179.7–710.4) ms2 vs 72.1 (10.1–175.9) ms2, p = 0.001, rho = − 0.524) and total autonomic modulation (RRI-CV 3.5 (2.3–5.4) ms2 vs 1.6 (1.0–2.8) ms2, p < 0.001, rho = − 0.519) with higher H&H-scores. Multiple-logistic-regression underlined the significant influence of H&H-scores on sympathetic (RRI-LF-powers, p = 0.033) and total autonomic modulation (RRI-CV, p = 0.040) compared to possible confounders (e.g., age, intubation). Conclusion Within the acute phase, spontaneous SAH induces a decrease in sympathetic and total autonomic cardiovascular modulation. Higher H&H-scores were associated with increasing autonomic dysfunction and may therefore augment the risk of cardiovascular complications and poor clinical outcome. Supplementary Information The online version contains supplementary material available at 10.1007/s00415-022-11220-w.
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Balcziak LK, Russo AF. Dural Immune Cells, CGRP, and Migraine. Front Neurol 2022; 13:874193. [PMID: 35432179 PMCID: PMC9009415 DOI: 10.3389/fneur.2022.874193] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/16/2022] [Indexed: 11/26/2022] Open
Abstract
Migraine is the most common neurological disorder in the world, affecting 12% of the population. Migraine involves the central nervous system, trigeminal nerves and meninges. Recent advances have shown that targeting calcitonin gene-related peptide (CGRP) through either antibodies or small molecule receptor antagonists is effective at reducing episodic and chronic migraine episodes, but these therapeutics are not effective in all patients. This suggests that migraine does not have a singular molecular cause but is likely due to dysregulated physiology of multiple mechanisms. An often-overlooked part of migraine is the potential involvement of the immune system. Clinical studies have shown that migraine patients may have dysregulation in their immune system, with abnormal plasma cytokine levels either during the attack or at baseline. In addition, those who are immunocompromised appear to be at a higher risk of migraine-like disorders. A recent study showed that migraine caused changes to transcription of immune genes in the blood, even following treatment with sumatriptan. The dura mater is densely packed with macrophages, mast and dendritic cells, and they have been found to associate with meningeal blood vessels and trigeminal afferent endings. Recent work in mice shows activation and morphological changes of these cells in rodents following the migraine trigger cortical spreading depression. Importantly, each of these immune cell types can respond directly to CGRP. Since immune cells make up a large portion of the dura, have functional responses to CGRP, and interact with trigeminal afferents, CGRP actions on the dural immune system are likely to play key roles in migraine.
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Affiliation(s)
- Louis K. Balcziak
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, United States
- Neuroscience Graduate Program, University of Iowa, Iowa City, IA, United States
- *Correspondence: Louis K. Balcziak
| | - Andrew F. Russo
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, United States
- Department of Neurology, University of Iowa, Iowa City, IA, United States
- Center for the Prevention and Treatment of Visual Loss, Veterans Administration Health Center, Iowa City, IA, United States
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Sloekers JC, Herrler A, Hoogland G, Rijkers K, Beckervordersandforth J, van Kuijk SM, Schijns OE. Nerve fiber density differences in the temporal dura mater: an explanation for headache after temporal lobectomy?, An anatomical study. J Chem Neuroanat 2022; 121:102082. [DOI: 10.1016/j.jchemneu.2022.102082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 02/10/2022] [Accepted: 02/10/2022] [Indexed: 10/19/2022]
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Spekker E, Tanaka M, Szabó Á, Vécsei L. Neurogenic Inflammation: The Participant in Migraine and Recent Advancements in Translational Research. Biomedicines 2021; 10:76. [PMID: 35052756 PMCID: PMC8773152 DOI: 10.3390/biomedicines10010076] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 12/24/2022] Open
Abstract
Migraine is a primary headache disorder characterized by a unilateral, throbbing, pulsing headache, which lasts for hours to days, and the pain can interfere with daily activities. It exhibits various symptoms, such as nausea, vomiting, sensitivity to light, sound, and odors, and physical activity consistently contributes to worsening pain. Despite the intensive research, little is still known about the pathomechanism of migraine. It is widely accepted that migraine involves activation and sensitization of the trigeminovascular system. It leads to the release of several pro-inflammatory neuropeptides and neurotransmitters and causes a cascade of inflammatory tissue responses, including vasodilation, plasma extravasation secondary to capillary leakage, edema, and mast cell degranulation. Convincing evidence obtained in rodent models suggests that neurogenic inflammation is assumed to contribute to the development of a migraine attack. Chemical stimulation of the dura mater triggers activation and sensitization of the trigeminal system and causes numerous molecular and behavioral changes; therefore, this is a relevant animal model of acute migraine. This narrative review discusses the emerging evidence supporting the involvement of neurogenic inflammation and neuropeptides in the pathophysiology of migraine, presenting the most recent advances in preclinical research and the novel therapeutic approaches to the disease.
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Affiliation(s)
- Eleonóra Spekker
- Neuroscience Research Group, Hungarian Academy of Sciences, University of Szeged (MTA-SZTE), H-6725 Szeged, Hungary; (E.S.); (M.T.)
| | - Masaru Tanaka
- Neuroscience Research Group, Hungarian Academy of Sciences, University of Szeged (MTA-SZTE), H-6725 Szeged, Hungary; (E.S.); (M.T.)
- Interdisciplinary Excellence Centre, Department of Neurology, Albert Szent-Györgyi Medical School, University of Szeged, H-6725 Szeged, Hungary;
| | - Ágnes Szabó
- Interdisciplinary Excellence Centre, Department of Neurology, Albert Szent-Györgyi Medical School, University of Szeged, H-6725 Szeged, Hungary;
| | - László Vécsei
- Neuroscience Research Group, Hungarian Academy of Sciences, University of Szeged (MTA-SZTE), H-6725 Szeged, Hungary; (E.S.); (M.T.)
- Interdisciplinary Excellence Centre, Department of Neurology, Albert Szent-Györgyi Medical School, University of Szeged, H-6725 Szeged, Hungary;
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Martinez-Ávila MC, Carrasquilla R, Oyola A, Rodriguez J, Castro-Dager A, Almeida Pérez R, De la Rosa G, Orozco-Gómez F, Quintero-Consuegra M. Cardiorespiratory Events in Children During Chemoembolization of Ophthalmic Artery for Retinoblastoma. Cureus 2021; 13:e16630. [PMID: 34466315 PMCID: PMC8396419 DOI: 10.7759/cureus.16630] [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] [Accepted: 07/25/2021] [Indexed: 11/30/2022] Open
Abstract
Retinoblastoma (RB) is the most common eye neoplasm in childhood, accounting for 2.5% to 4% of all pediatric cancers. Recent approaches to treat RB include localized administration of chemotherapy, such as super-selective ophthalmic artery chemotherapy. Although localized chemotherapy aims that minimize systemic side effects, some adverse cardio-respiratory reactions have been described as associated with this therapy. Our case report describes the cardiorespiratory severe events presented secondary to super-selective chemotherapy of the ophthalmic artery, to which we must be prepared to avoid fatal outcomes
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Affiliation(s)
| | | | - Antonio Oyola
- Anesthesia and Critical Care, Neurodinamia, Cartagena, COL
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Neurovascular-modulation: A review of primary vascular responses to transcranial electrical stimulation as a mechanism of action. Brain Stimul 2021; 14:837-847. [PMID: 33962079 DOI: 10.1016/j.brs.2021.04.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The ubiquitous vascular response to transcranial electrical stimulation (tES) has been attributed to the secondary effect of neuronal activity forming the classic neurovascular coupling. However, the current density delivered transcranially concentrates in: A) the cerebrospinal fluid of subarachnoid space where cerebral vasculature resides after reaching the dural and pial surfaces and B) across the blood-brain-barrier after reaching the brain parenchyma. Therefore, it is anticipated that tES has a primary vascular influence. OBJECTIVES Focused review of studies that demonstrated the direct vascular response to electrical stimulation and studies demonstrating evidence for tES-induced vascular effect in coupled neurovascular systems. RESULTS tES induces both primary and secondary vascular phenomena originating from four cellular elements; the first two mediating a primary vascular phenomenon mainly in the form of an immediate vasodilatory response and the latter two leading to secondary vascular effects and as parts of classic neurovascular coupling: 1) The perivascular nerves of more superficially located dural and pial arteries and medium-sized arterioles with multilayered smooth muscle cells; and 2) The endothelial lining of all vessels including microvasculature of blood-brain barrier; 3) Astrocytes; and 4) Neurons of neurovascular units. CONCLUSION A primary vascular effect of tES is highly suggested based on various preclinical and clinical studies. We explain how the nature of vascular response can depend on vessel anatomy (size) and physiology and be controlled by stimulation waveform. Further studies are warranted to investigate the mechanisms underlying the vascular response and its contribution to neural activity in both healthy brain and pathological conditions - recognizing many brain diseases are associated with alteration of cerebral hemodynamics and decoupling of neurovascular units.
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Witten A, Marotta D, Cohen‐Gadol A. Developmental innervation of cranial dura mater and migraine headache: A narrative literature review. Headache 2021; 61:569-575. [DOI: 10.1111/head.14102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/25/2021] [Accepted: 02/15/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Andrew Witten
- Indiana University School of Medicine Indianapolis IN USA
| | - Dario Marotta
- Alabama College of Osteopathic Medicine Dothan AL USA
- Department of Neurology Division of Neuropsychology University of Alabama at Birmingham Birmingham AL USA
| | - Aaron Cohen‐Gadol
- Department of Neurological Surgery Indiana University Indianapolis IN USA
- The Neurosurgical Atlas Indianapolis IN USA
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Zhang X, Yin L, Jia X, Zhang Y, Liu T, Zhang L. iTRAQ-based Quantitative Proteomic Analysis of Dural Tissues Reveals Upregulated Haptoglobin to be a Potential Biomarker of Moyamoya Disease. CURR PROTEOMICS 2021. [DOI: 10.2174/1570164617666191210103652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Moyamoya Disease (MMD) is a rare cerebrovascular disease with a high rate
of disability and mortality. Immune reactions have been implicated in the pathogenesis of MMD, however,
the underlying mechanism is still unclear.
Objective:
To identify proteins related to MMD specially involved in the immunogenesis, we performed
a proteomic study.
Methods:
In this work, dural tissues or plasma from 98 patients with MMD, 17 disease controls without
MMD, and 12 healthy donors were included. Proteomic profiles of dural tissues from 4 MMD and
4 disease controls were analyzed by an isobaric tag for relative and absolute quantitation (iTRAQ)-
based proteomics. The immune-related proteins were explored by bioinformatics and the key MMDrelated
proteins were verified by western blot, multiple reaction monitoring methods, enzyme-linked
immunosorbent assay, and tissue microarray.
Results:
1,120 proteins were identified, and 82 MMD-related proteins were found with more than 1.5
fold difference compared with those in the control samples. Gene Ontology analysis showed that 29
proteins were immune-related. In particular, Haptoglobin (HP) was up-regulated in dural tissue and
plasma of MMD samples compared to the controls, and its up-regulation was found to be sex- and
MMD Suzuki grade dependent. Through Receiver Operating Characteristic (ROC) analysis, HP can
well discriminate MMD and healthy donors with the Area Under the Curve (AUC) of 0.953.
Conclusion:
We identified the biggest protein database of the dura mater. 29 out of 82 differentially
expressed proteins in MMD are involved in the immune process. Of which, HP was up-regulated in
dural tissue and plasma of MMD, with sex- and MMD Suzuki grade-dependence. HP might be a potential
biomarker of MMD.
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Affiliation(s)
- Xiaojun Zhang
- The 85th Hospital of the Chinese People's Liberation Army, Shanghai 200052, China
| | - Lin Yin
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Xiaofang Jia
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Yujiao Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Tiefu Liu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Lijun Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
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Kesserwani H. Hemicrania Continua and Pituitary Microadenoma - Post Hoc Ergo Propter Hoc?: A Case Report With a Side Note on Intra-Sellar Pressure and the Trigemino-Autonomic Reflex. Cureus 2020; 12:e10223. [PMID: 33042666 PMCID: PMC7535867 DOI: 10.7759/cureus.10223] [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] [Indexed: 11/05/2022] Open
Abstract
We describe the case of a 38-year-old woman whose headache phenotype transformed from episodic migraine to hemicrania continua (HC) responsive to indomethacin, as expected per diagnostic criteria. Our patient also had a non-functioning pituitary micro-adenoma which is over-represented in the trigeminal autonomic cephalgias (TAC) such as HC, pituitary adenoma being the most common intra-cranial pathology. We explore our case further by outlining in detail the neural supply of the dura of the pituitary fossa, outline the dynamics of intra-sellar pressure (ISP), and posit potential mechanisms of generation of HC in patients with pituitary micro-adenoma. We stress and further explore the remarkable observation that indomethacin, which lowers intracranial pressure, exquisitely resolves the pain of HC. Furthermore, we hypothesize that despite normal ISP, the slight elevation of ISP and mass effect impairs portal venous circulation, which may lead to venous hypertension and/or parasympathetic hyperactivity, which explains the pain and autonomic features of HC.
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Bordoni B. The Five Diaphragms in Osteopathic Manipulative Medicine: Neurological Relationships, Part 1. Cureus 2020; 12:e8697. [PMID: 32699694 PMCID: PMC7370585 DOI: 10.7759/cureus.8697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In osteopathic manual medicine (OMM), there are several approaches for patient assessment and treatment. One of these is the five diaphragm model (tentorium cerebelli, tongue, thoracic outlet, diaphragm, and pelvic floor), whose foundations are part of another historical model: respiratory-circulatory. The myofascial continuity, anterior and posterior, supports the notion the human body cannot be divided into segments but is a continuum of matter, fluids, and emotions. In this first part, the neurological relationships of the tentorium cerebelli and the lingual muscle complex will be highlighted, underlining the complex interactions and anastomoses, through the most current scientific data and an accurate review of the topic. In the second part, I will describe the neurological relationships of the thoracic outlet, the respiratory diaphragm and the pelvic floor, with clinical reflections. In literature, to my knowledge, it is the first time that the different neurological relationships of these anatomical segments have been discussed, highlighting the constant neurological continuity of the five diaphragms.
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Affiliation(s)
- Bruno Bordoni
- Physical Medicine and Rehabilitation, Foundation Don Carlo Gnocchi, Milan, ITA
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Alves de Lima K, Rustenhoven J, Kipnis J. Meningeal Immunity and Its Function in Maintenance of the Central Nervous System in Health and Disease. Annu Rev Immunol 2020; 38:597-620. [DOI: 10.1146/annurev-immunol-102319-103410] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neuroimmunology, albeit a relatively established discipline, has recently sparked numerous exciting findings on microglia, the resident macrophages of the central nervous system (CNS). This review addresses meningeal immunity, a less-studied aspect of neuroimmune interactions. The meninges, a triple layer of membranes—the pia mater, arachnoid mater, and dura mater—surround the CNS, encompassing the cerebrospinal fluid produced by the choroid plexus epithelium. Unlike the adjacent brain parenchyma, the meninges contain a wide repertoire of immune cells. These constitute meningeal immunity, which is primarily concerned with immune surveillance of the CNS, and—according to recent evidence—also participates in postinjury CNS recovery, chronic neurodegenerative conditions, and even higher brain function. Meningeal immunity has recently come under the spotlight owing to the characterization of meningeal lymphatic vessels draining the CNS. Here, we review the current state of our understanding of meningeal immunity and its effects on healthy and diseased brains.
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Affiliation(s)
- Kalil Alves de Lima
- Center for Brain Immunology and Glia (BIG) and Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, USA;,
| | - Justin Rustenhoven
- Center for Brain Immunology and Glia (BIG) and Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, USA;,
| | - Jonathan Kipnis
- Center for Brain Immunology and Glia (BIG) and Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, USA;,
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Bahr-Hosseini M, Saver JL. Mechanisms of action of acute and subacute sphenopalatine ganglion stimulation for ischemic stroke. Int J Stroke 2020; 15:839-848. [PMID: 32326842 DOI: 10.1177/1747493020920739] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Sphenopalatine ganglion stimulation (SPG-Stim) for ischemic stroke, starting 8-24 h after onset and continuing through five days in a pooled analysis of two recent, randomized, sham-controlled trials, improved outcome of acute ischemic stroke patients with confirmed cortical involvement. As a neuromodulatory therapy, SPG-Stim differs substantially from existing pharmacologic (lytic and antiplatelets) and device (endovascular thrombectomy) acute ischemic stroke treatments. AIM Focused review of SPG anatomy, physiology, and neurovascular and neurobiologic mechanisms of action mediating benefit of SPG-Stim in acute ischemic stroke. SUMMARY OF REVIEW Located posterior to the maxillary sinus, the SPG is the main source of parasympathetic innervation to the anterior circulation. Preclinical and human studies delineate four distinct mechanisms of action by which the SPG-Stim may confer benefit in acute ischemic stroke: (1) collateral vasodilation and enhanced cerebral blood flow, mediated by release of neurotransmitters with vasodilatory effects, nitric oxide, and acetylcholine, (2) stimulation frequency- and intensity-dependent stabilization of the blood-brain barrier, reducing edema (3) direct acute neuroprotection from activation of the central cholinergic system with resulting anti-inflammatory, anti-apoptotic, and anti-excitatory effects; and (4) neuroplasticity enhancement from enhanced central cholinergic and adrenergic neuromodulation of cortical networks and nitrous oxide release stimulating neurogenesis. CONCLUSION The benefit of SPG-Stim in acute ischemic stroke is likely conferred not only by potent collateral augmentation, but also blood-barrier stabilization, direct neuroprotection, and neuroplasticity enhancement. Further studies clarifying the relative contribution of these mechanisms and the stimulation protocols that maximize each may help optimize SPG-Stim as a therapy for acute ischemic stroke.
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Affiliation(s)
- Mersedeh Bahr-Hosseini
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine at 8783UCLA, Los Angeles, CA, USA
| | - Jeffrey L Saver
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine at 8783UCLA, Los Angeles, CA, USA
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20
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Lv X, Jiang C, Wang J. Pediatric intracranial arteriovenous shunts: Advances in diagnosis and treatment. Eur J Paediatr Neurol 2020; 25:29-39. [PMID: 31996298 DOI: 10.1016/j.ejpn.2019.12.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/24/2019] [Accepted: 12/29/2019] [Indexed: 02/07/2023]
Abstract
Pediatric intracranial arteriovenous shunts (IAVSs) comprise a wide range of lesions, including pial arteriovenous malformation (AVM) and arteriovenous fistula (AVF), dural arteriovenous fistula (DAVF) and vein of Galen aneurysmal malformation (VGAM). We provide an overview of pediatric IAVSs, encompassing both diagnosis and endovascular treatment. We include references from pertinent literature and representative cases from our hospital. Pediatric IAVS are frequently associated two broader conditions, such as capillary malformation-arteriovenous malformation (CM-AVM) and hereditary hemorrhagic telangiectasia (HHT). These conditions and the associated genetic mutations have only recently been described. Their impact on the brain will be different in the prenatal period, in neonates, in infants, and in children, with variable symptoms according to each age group and the current strategies of endovascular treatment in the management of these vascular lesions will be discussed. This review could improve the understanding of pediatric IAVSs and their diagnosis and treatment.
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Affiliation(s)
- Xianli Lv
- Neurosurgery Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China.
| | - Chuhan Jiang
- Neurosurgery Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - James Wang
- Neurosurgery Department, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
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21
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Dagistan Y, Kilinc E, Balci CN. Cervical sympathectomy modulates the neurogenic inflammatory neuropeptides following experimental subarachnoid hemorrhage in rats. Brain Res 2019; 1722:146366. [DOI: 10.1016/j.brainres.2019.146366] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 01/28/2023]
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Abstract
The tentorium cerebelli is an integral part of the reciprocal tension membranes that divide some brain areas: the falx cerebri, the falx cerebelli, and the diaphragma sellae. The article is divided into two parts. The first part reviews the anatomy of the tentorium cerebelli, the dura mater, and the ligaments and cervical muscles connected to the tentorium. The tentorial area may be subject to trauma or surgery and knowledge of anatomy and existing relationships is essential to better understand the clinical picture. The second part reviews the systemic relationships of the tentorium cerebelli. The neurological anatomical information, which links the tentorium to the central and peripheral nervous systems, venous brain drainage. The tentorium is not just a body segment, but a systemic communication tool.
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Affiliation(s)
- Bruno Bordoni
- Cardiology, Foundation Don Carlo Gnocchi, Milan, ITA
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23
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Tentorial Venous Anatomy: Cadaveric and Radiographic Study with Discussion of Origin and Surgical Significance. World Neurosurg 2019; 131:e38-e45. [PMID: 31295599 DOI: 10.1016/j.wneu.2019.06.232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND Described variations of tentorial venous anatomy impact surgical sectioning of the tentorium in skull base approaches; however, described configurations do not consistently explain postoperative complications. To understand the outcomes of 2 clinical cases we studied the tentorial venous anatomy of 2 cadavers. METHODS The venous anatomy of the tentorium isolated in 2 uninjected fresh cadaver head specimens with preserved bridging veins was observed by transillumination before and after methylene blue injection of the dural sinuses and tentorial veins. Our findings in cadavers were applied to explain the clinical and radiologic (magnetic resonance imaging and computed tomographic venography) findings in the 2 cases presented. RESULTS A consistent transtentorial venous system, arising from transverse and straight sinuses, communicating with supra- and infratentorial bridging veins was seen in the cadaver and patient radiography (magnetic resonance imaging and computed tomographic venography). Our first patient had a cerebellar venous infarct from compromise of the venous drainage from the adjacent brain after ligation of a temporal lobe bridging vein to the tentorium. Our second patient suffered no clinical effects from bilateral transverse sinus occlusion due to drainage through the accessory venous system within the tentorium. CONCLUSIONS Herein, we elaborate on transtentorial venous anatomy. These veins, previously reported to obliterate in completed development of the tentorium, remain patent with consistent observed configuration. The same transtentorial venous system was observed in both cases and provided insight to their outcomes. These findings emphasize the importance of the transtentorial venous system physiologically and in surgical approaches.
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Entezami P, Nourollahzadeh E, Dalfino J. Embolization of Middle Meningeal Artery for the Treatment of Headaches Induced by Chronic Subdural Hematoma: A Case Report. Headache 2019; 59:615-618. [DOI: 10.1111/head.13519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Pouya Entezami
- Department of Neurosurgery Albany Medical College Albany NY USA
| | | | - John Dalfino
- Department of Neurosurgery Albany Medical College Albany NY USA
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25
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Conde V, Tomasevic L, Akopian I, Stanek K, Saturnino GB, Thielscher A, Bergmann TO, Siebner HR. The non-transcranial TMS-evoked potential is an inherent source of ambiguity in TMS-EEG studies. Neuroimage 2018; 185:300-312. [PMID: 30347282 DOI: 10.1016/j.neuroimage.2018.10.052] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/16/2018] [Accepted: 10/18/2018] [Indexed: 10/28/2022] Open
Abstract
Transcranial Magnetic Stimulation (TMS) excites populations of neurons in the stimulated cortex, and the resulting activation may spread to connected brain regions. The distributed cortical response can be recorded with electroencephalography (EEG). Since TMS also stimulates peripheral sensory and motor axons and generates a loud "click" sound, the TMS-evoked EEG potentials (TEPs) reflect not only neural activity induced by transcranial neuronal excitation but also neural activity due to somatosensory and auditory processing. In 17 healthy young individuals, we systematically assessed the contribution of multisensory peripheral stimulation to TEPs using a TMS-compatible EEG system. Real TMS was delivered with a figure-of-eight coil over the left para-median posterior parietal cortex or superior frontal gyrus with the coil being oriented perpendicularly or in parallel to the target gyrus. We also recorded the EEG responses evoked by realistic sham stimulation over the posterior parietal and superior frontal cortex, mimicking the auditory and somatosensory sensations evoked by real TMS. We applied state-of-the-art procedures to attenuate somatosensory and auditory confounds during real TMS, including the placement of a foam layer underneath the coil and auditory noise masking. Despite these precautions, the temporal and spatial features of the cortical potentials evoked by real TMS at the prefrontal and parietal site closely resembled the cortical potentials evoked by realistic sham TMS, both for early and late TEP components. Our findings stress the need to include a peripheral multisensory control stimulation in the design of TMS-EEG studies to enable a dissociation between truly transcranial and non-transcranial components of TEPs.
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Affiliation(s)
- Virginia Conde
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; Clinical Neuroscience Laboratory, Institute of Psychology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Leo Tomasevic
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark
| | - Irina Akopian
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark
| | - Konrad Stanek
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; Cognitive Systems, Department of Applied Mathematics and Computer Science, Technical University of Denmark, Denmark
| | - Guilherme B Saturnino
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; Center for Magnetic Resonance, Department of Electrical Engineering, Technical University of Denmark, Kgs Lyngby, Denmark
| | - Axel Thielscher
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; Center for Magnetic Resonance, Department of Electrical Engineering, Technical University of Denmark, Kgs Lyngby, Denmark
| | - Til Ole Bergmann
- Department of Neurology & Stroke, Hertie Institute for Clinical Brain Research, Eberhard Karls University of Tübingen, Hoppe-Seyler-Str. 3, 72076 Tübingen, Germany; Institute for Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, Otfried-Müller-Straße 25, 72076 Tübingen, Germany
| | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Denmark; Department of Neurology, Copenhagen University Hospital Bispebjerg, Bispebjerg Bakke 23, 2400 København NV, Denmark.
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Liu H, Zhu X, Ling Y, He X, Pei L, Zhang Z, Yang F, Xu F. Anatomic Evidence for Information Exchange between Primary Afferent Sensory Neurons Innervating the Anterior Eye Chamber and the Dura Mater in Rat. ACTA ACUST UNITED AC 2018; 59:3424-3430. [PMID: 30025096 DOI: 10.1167/iovs.18-24308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Haixia Liu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xutao Zhu
- Center for Brain Science, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yun Ling
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaobin He
- Center for Brain Science, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
| | - Lei Pei
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan, China
| | - Zhidan Zhang
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Yang
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fuqiang Xu
- Center for Brain Science, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China
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27
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CGRP as the target of new migraine therapies — successful translation from bench to clinic. Nat Rev Neurol 2018; 14:338-350. [DOI: 10.1038/s41582-018-0003-1] [Citation(s) in RCA: 434] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Ramachandran R. Neurogenic inflammation and its role in migraine. Semin Immunopathol 2018; 40:301-314. [PMID: 29568973 DOI: 10.1007/s00281-018-0676-y] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 03/06/2018] [Indexed: 11/28/2022]
Abstract
The etiology of migraine pain involves sensitized meningeal afferents that densely innervate the dural vasculature. These afferents, with their cell bodies located in the trigeminal ganglion, project to the nucleus caudalis, which in turn transmits signals to higher brain centers. Factors such as chronic stress, diet, hormonal fluctuations, or events like cortical spreading depression can generate a state of "sterile inflammation" in the intracranial meninges resulting in the sensitization and activation of trigeminal meningeal nociceptors. This sterile inflammatory phenotype also referred to as neurogenic inflammation is characterized by the release of neuropeptides (such as substance P, calcitonin gene related peptide) from the trigeminal innervation. This release leads to vasodilation, plasma extravasation secondary to capillary leakage, edema, and mast cell degranulation. Although neurogenic inflammation has been observed and extensively studied in peripheral tissues, its role has been primarily investigated in the genesis and maintenance of migraine pain. While some aspects of neurogenic inflammation has been disregarded in the occurrence of migraine pain, targeted analysis of factors have opened up the possibilities of a dialogue between the neurons and immune cells in driving such a sterile neuroinflammatory state in migraine pathophysiology.
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Affiliation(s)
- Roshni Ramachandran
- Anesthesiology Research, Department of Anesthesiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.
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Nghe MC, Godier A, Shaffii A, Leblanc I, Picard H, Blanc R, Lumbroso-Le Rouic L, Devys JM. Prospective analysis of serious cardiorespiratory events in children during ophthalmic artery chemotherapy for retinoblastoma under a deep standardized anesthesia. Paediatr Anaesth 2018; 28:120-126. [PMID: 29205669 DOI: 10.1111/pan.13294] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/31/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Serious adverse cardiorespiratory events complicate super selective ophthalmic artery chemotherapy for retinoblastoma in anesthetized children. Their mechanism remains unclear but may be attributed to an autonomic nervous reflex induced by the catheter close to the ophthalmic artery. Inadequate depth of anesthesia during catheter stimulation might be an aggravating factor. Thus, we tested whether deep general anesthesia reduced the incidence of serious cardiorespiratory events. METHODS Children were prospectively included in this observational study. Standardized deep general anesthesia with sevoflurane, rocuronium, and sufentanil was administered. Sevoflurane MAC was kept between 1.5 and 1.7 and additional sufentanil administered. Serious cardiorespiratory event criteria were predefined and included arterial hypotension, bradycardia, and severe decrease in lung compliance. They were recorded and the factors influencing their occurrence were investigated. RESULTS One hundred fifteen procedures were performed on 32 children. The median MAC of sevoflurane was 1.5 and median BIS value was 44. Serious cardiorespiratory events occurred in 20% of procedures and were mainly severe decrease in lung compliance (83% of events). All of them required active treatment. One procedure was aborted due to cardiorespiratory compromise and required an epinephrine infusion. All severe decreases in lung compliance occurred within 2 minutes after catheter insertion in the ophthalmic artery. No recorded demographic and endovascular characteristics were associated with serious cardiorespiratory events. CONCLUSION Serious cardiorespiratory events occur commonly during super selective ophthalmic artery chemotherapy. Standardized deep anesthesia with analgesia did not appear to be protective. No predictive factors were identified, but these events systematically arose within 2 minutes after ophthalmic artery catheter insertion. Anesthetists and neuroradiologists should be prepared to manage these serious complications and parents should be informed of the risks.
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Affiliation(s)
- Marie-Claire Nghe
- Department of Anesthesiology and Intensive Care, Foundation Adolphe de Rothschild, Paris, France
| | - Anne Godier
- Department of Anesthesiology and Intensive Care, Foundation Adolphe de Rothschild, Paris, France.,INSERM UMR-S1140, Paris Descartes University, Paris, France
| | - Anoushée Shaffii
- Department of Anesthesiology and Intensive Care, Foundation Adolphe de Rothschild, Paris, France
| | - Isabelle Leblanc
- Department of Anesthesiology and Intensive Care, Foundation Adolphe de Rothschild, Paris, France
| | - Hervé Picard
- Clinical Research Unit, Foundation Adolphe de Rothschild, Paris, France
| | - Raphaël Blanc
- Department of Interventional Neuroradiology, Foundation Adolphe de Rothschild, Paris, France
| | | | - Jean-Michel Devys
- Department of Anesthesiology and Intensive Care, Foundation Adolphe de Rothschild, Paris, France
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30
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Lee SH, Hwang SJ, Koh KS, Song WC, Han SD. Macroscopic Innervation of the Dura Mater Covering the Middle Cranial Fossa in Humans Correlated to Neurovascular Headache. Front Neuroanat 2017; 11:127. [PMID: 29311855 PMCID: PMC5742225 DOI: 10.3389/fnana.2017.00127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/06/2017] [Indexed: 11/13/2022] Open
Abstract
The trigeminovascular system within the cranial dura mater is a possible cause of headaches. The aim of this study is to investigate macroscopically dural innervation around the middle meningeal artery (MMA) in the middle cranial fossa. Forty-four sides of the cranial dura overlying the skull base obtained from 24 human cadavers were stained using Sihler’s method. Overall, the nervus spinosus (NS) from either the maxillary or mandibular trigeminal divisions ran along the lateral wall of the middle meningeal vein rather than that of the MMA. Distinct bundles of the NS running along the course of the frontal branches of the MMA were present in 81.8% of cases (N = 36). Others did not form dominant nerve bundles, instead giving off free nerve endings along the course of the MMA or dural connective tissue. The distribution of these nerve endings was similar to that of the course of the frontal, parietal and petrosal branches of the MMA (11.4%). The others were not restricted to a perivascular plexus, crossing the dural connective tissues far from the MMA (6.8%). These findings indicate that the NS generally travels alongside the course of the frontal branches of the MMA and terminates in the vicinity of the pterion.
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Affiliation(s)
- Shin-Hyo Lee
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, South Korea
| | - Seung-Jun Hwang
- Department of Anatomy, Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ki-Seok Koh
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, South Korea
| | - Wu-Chul Song
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, South Korea
| | - Sang-Don Han
- Department of Medical Education, Konkuk University School of Medicine, Seoul, South Korea
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31
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Glinskii OV, Huxley VH, Glinsky VV. Estrogen-Dependent Changes in Dura Mater Microvasculature Add New Insights to the Pathogenesis of Headache. Front Neurol 2017; 8:549. [PMID: 29093699 PMCID: PMC5651256 DOI: 10.3389/fneur.2017.00549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/28/2017] [Indexed: 12/17/2022] Open
Abstract
The pathogenesis of headaches is a matter of ongoing discussion of two major theories describing it either as a vascular phenomenon resulting from vasodilation or primarily as a neurogenic process accompanied by secondary vasodilation associated with sterile neurogenic inflammation. While summarizing current views on neurogenic and vascular origins of headache, this mini review adds new insights regarding how smooth muscle-free microvascular networks, discovered within dura mater connective tissue stroma (previously thought to be “avascular”), may become a site of initial insult generating the background for the development of headache. Deficiencies in estrogen-dependent control of microvascular integrity leading to plasma protein extravasation, potential activation of perivascular and connective tissue stroma nociceptive neurons, and triggering of inflammatory responses are described. Finally, possible avenues for controlling and preventing these pathophysiological changes are discussed.
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Affiliation(s)
- Olga V Glinskii
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, United States.,Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, United States.,Center for Gender Physiology and Environmental Adaptation, University of Missouri, Columbia, MO, United States
| | - Virginia H Huxley
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, United States.,Center for Gender Physiology and Environmental Adaptation, University of Missouri, Columbia, MO, United States
| | - Vladislav V Glinsky
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, MO, United States.,Center for Gender Physiology and Environmental Adaptation, University of Missouri, Columbia, MO, United States.,Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO, United States
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32
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Lee SH, Shin KJ, Koh KS, Song WC. Visualization of the tentorial innervation of human dura mater. J Anat 2017; 231:683-689. [PMID: 28695607 DOI: 10.1111/joa.12659] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2017] [Indexed: 01/24/2023] Open
Abstract
Posterior projections of the ophthalmic division of the trigeminal nerve (the ophthalmic nerve) are distributed in the tentorium cerebelli as recurrent meningeal branches. We investigated the morphological tentorial distribution of the ophthalmic nerve. Fifty-two sides of the tentorium cerebelli and adjacent dura mater obtained from 29 human specimens were stained using Sihler's method to examine the nerve fibres in the dural sheets. The innervation patterns of the tentorium cerebelli were classified into the following four types according to their distributions: Type 1, where nerve fibres projected to both the straight and transverse sinuses; Type 2, where nerve fibres projected only to the transverse sinus and lateral convexity; Type 3, where nerve fibres projected medially only to the straight sinus and the posterior part of the falx cerebri; and Type 4, where the nerve fibres terminated within the tentorium cerebelli. Images of the tentorium cerebelli were superimposed to identify areas of dense innervation. The incidence rates of Types 1-4 were 71.2% (n = 37), 21.2% (n = 11), 3.8% (n = 2) and 3.8% (n = 2), respectively. More branches of nerve fibres traversed towards the transverse sinus posterolaterally than towards the straight sinus medially. The space between the anterior half of the straight sinus and the medial tentorial notch can be considered a safe surgical area where innervation is scarce. The posterior part of the falx cerebri was innervated by the ophthalmic nerve that traversed to the straight sinus. The parietal branches of the middle meningeal artery in the lateral convexity that were projected orthogonally by the ophthalmic nerve traversed the transverse sinus, implicating their vulnerability and possible sensitivity under physiological or neurosurgical conditions. This study has revealed the macroscopic tentorial innervation of the dura mater in humans, which could be useful information for both neurosurgeons and neurologists.
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Affiliation(s)
- Shin-Hyo Lee
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Kang-Jae Shin
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Ki-Seok Koh
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Wu-Chul Song
- Department of Anatomy, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
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