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https://www.readbyqxmd.com/read/27894943/acquired-chiari-malformation-and-syringomyelia-secondary-to-space-occupying-lesions-a-systematic-review
#1
REVIEW
Justin Wang, Naif M Alotaibi, Nardin Samuel, George M Ibrahim, Aria Fallah, Michael D Cusimano
BACKGROUND: Acquired Chiari malformations (ACM) and associated syringomyelia secondary to space-occupying lesions can cause neurological deficits independent of or in combination with the offending mass. Although type I CM are traditionally treated with posterior fossa decompression, optimal surgical management of ACM and associated syringomyelia remains unclear. The purpose of this study is to review the current literature surrounding the management of ACM. METHODS: A systematic review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
November 25, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27891025/external-syrinx-introduction-of-a-new-term
#2
EDITORIAL
Atul Goel
No abstract text is available yet for this article.
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27890751/atlantoaxial-fixation-for-basilar-invagination-without-obvious-atlantoaxial-instability-group-b-basilar-invagination-outcome-analysis-of-63-surgically-treated-cases
#3
Atul Goel, Prashant Sathe, Abhidha Shah
BACKGROUND: The authors discuss the rationale of surgical treatment of Group B basilar invagination by atlantoaxial facet joint stabilization and segmental arthrodesis. MATERIAL: During the period January 2010 to April 2016, 63 patients having Group B basilar invagination were surgically treated. All patients had varying degree of myelopathy related functional disability. Fifty-two patients had both Chiari malformation and syringomyelia. All patients were treated by atlantoaxial plate and screw fixation with the techniques described by us in 1994 and 2004...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27858679/entire-syringomyelia-associated-with-chiari-ii-malformation-and-severe-scoliosis-and-hydrocephalus
#4
Jie Liang, Weifei Wu, Neng Ru, Jianfeng Chen
BACKGROUND: The syrinx can occur in any region of the spinal cord and is common in cervical and/or thoracic region, and distributing along spinal cord is unusual, especially association with Chiari II malformation and scoliosis. OBJECTIVE: To report a first case of entire syringomyelia associated with Chiari II malformation and severe scoliosis and hydrocephalus. CASE PRESENTATION: The patient began to experience symptoms of bilateral hand weakness in adulthood...
November 18, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27852812/a-retrospective-study-of-the-prevalence-of-calcium-oxalate-crystals-in-veterinary-aspergillus-cases
#5
Courtney L Payne, Michael J Dark, Julia A Conway, Lisa L Farina
Fungi in the genus Aspergillus are some of the most common fungal pathogens in veterinary species, primarily affecting the respiratory tract. In both human and veterinary cases, calcium oxalate crystals have been documented in sites of Aspergillus infection. Cases in multiple species (16 birds, 15 horses, 5 dogs, 1 ox, and 1 dolphin) were identified that had either positive cultures for Aspergillus sp., or had conidiophores present that could be identified as belonging to the genus Aspergillus Histologic slides were examined to confirm the presence of oxalate crystals and how often they were identified on the original report...
November 15, 2016: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27852738/contributions-of-rapid-neuromuscular-transmission-to-the-fine-control-of-acoustic-parameters-of-birdsong
#6
Caitlin Mencio, Balagurunathan Kuberan, Franz Goller
Neural control of complex vocal behaviors, such as birdsong and speech, requires integration of biomechanical nonlinearities through muscular output. Although control of airflow and tension of vibrating tissues are known functions of vocal muscles, it remains unclear how specific muscle characteristics contribute to specific acoustic parameters. To address this gap, we removed heparan sulfate chains using heparitinases to subtly perturb neuromuscular transmission in the syrinx of adult male zebra finches (Taeniopygia guttata)...
November 16, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27846400/spinal-cordectomy-a-new-hope-for-morbid-spinal-conditions
#7
REVIEW
Subhas K Konar, Tanmoy K Maiti, Shyamal C Bir, Anil Nanda
A spinal cordectomy is a treatment option for several disorders of the spinal cord like post-traumatic syringomyelia, spinal cord tumor and myelomeningocele. We have done a systematic analysis of all reported cases of spinal cordectomy to investigate the possible outcomes and complications. A PubMed search was performed for literature published from 1949 to 2015 with search words "spinal cordectomy", "spinal cord transection" and "cordectomy for malignant spinal cord tumors" to select articles containing information about the indication, outcome and complication of spinal cordectomy performed for diverse etiologies...
November 10, 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27843681/successful-surgical-strategy-for-a-cervical-hemangioblastoma-case-report
#8
Hideaki Imai, Kazuhiko Ishii, Hirotaka Chikuda, Junichi Ohya, Daichi Nakagawa, Tomomasa Kondo, Seiji Nomura, Masanori Yoshino, Satoru Miyawaki, Taichi Kin, Hirofumi Nakatomi, Nobuhito Saito
BACKGROUND: Hemangioblastomas are hypervascular lesions and hence their surgical management is challenging. In particular, if complete resection is to be attained, all feeding and draining vessels must be occluded. Although most intramedullary spinal cord tumors are treated utilizing a posterior approach, we describe an anterior surgical strategy for resection of an intramedullary cervical hemangioblastoma. CASE DESCRIPTION: A 36-year-old female with a spinal hemangioblastoma located in the anterior cervical spinal cord presented with a long-standing history of motor weakness of the right upper extremity...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27822765/syringomyelia-caused-by-an-arachnoid-web-in-a-patient-with-shunted-dandy-walker-malformation
#9
Hee Chang Lee, Jung Won Choi, Ji Yeoun Lee, Ji Hoon Phi, Seung-Ki Kim, Byung-Kyu Cho, Kyu-Chang Wang
INTRODUCTION: Dandy-Walker malformation (DWM) is a congenital brain anomaly characterized by dysgenesis of the cerebellar vermis and the presence of a posterior fossa cyst. The association of syringomyelia with DWM is extremely rare. CASE REPORT: A 10-year-old patient who was diagnosed with DWM in infancy presented with progressive scoliosis and fecal incontinence. He had been treated with cystoventriculoperitoneal shunting with a Y-connection during infancy, which was followed by a revision 6 years later...
November 7, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27777155/shunting-of-syringomyelic-cavities-by-using-a-myringotomy-tube-technical-note-and-long-term-results
#10
Dorota Tassigny, Basel Abu-Serieh, Daniella Tsague Fofe, Jacques Born, Germain Milbouw
BACKGROUND AND IMPORTANCE: Syringomyelia is a progressive cerebrospinal fluid disorder which can lead to irreversible spinal cord injury. To date, the optimal management of syringomyelic cavities remains controversial. Multiple studies have emphasized the importance of the cranio-cervical decompression or shunting procedures. However, excepted for syrinx related to Arnold Chiari malformation, nearly half of patients need to be re-operated. The purpose of the present study was to describe a simple and efficient surgical technique and to report the long-term radio-clinical outcomes...
October 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27771111/ziconotide-intrathecal-delivery-as-treatment-for-secondary-therapeutic-failure-of-motor-cortex-stimulation-after-6%C3%A2-years
#11
J Voirin, I Darie, D Fischer, A Simon, I Rohmer-Heitz, F Proust
INTRODUCTION: Motor cortex stimulation is a well-known treatment modality for refractory neuropathic pain. Nevertheless, some cases of therapeutic failure have been described but alternative therapies for these cases are rarely reported. CASE REPORT: The patient presented with neuropathic pain in his right arm due to a cervical syrinx which was surgically treated by a shunt in 2003 with no clinical improvement. As alternative therapy, after an evaluation by repetitive magnetic transcranial stimulation with significant benefit, motor cortex stimulation was successfully implanted in 2004...
October 19, 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/27757566/tectal-glioma-presenting-with-clinical-triad-of-obesity-amenorrhea-and-central-cord-syndrome-with-radiological-pentad-of-hydrocephalus-empty-sella-suprapineal-diverticula-chiari-and-syrinx
#12
Sivashanmugam Dhandapani, Madhivanan Karthigeyan, Sushanta K Sahoo, Vivek Gupta
BACKGROUND: Tectal gliomas (TG) are slow-growing tumors and generally present with features of increased intracranial pressure. CASE DESCRIPTION: We describe an unusual case of a young girl who presented with clinical triad of obesity, primary amenorrhea and central cord syndrome. The radiology unveiled a pentad of hydrocephalus, empty sella, suprapineal recess diverticulum, secondary Chiari malformation and cervical syringomyelia, masking a relatively obscure tectal plate glioma...
October 18, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27736311/spinal-cord-transcriptomic-and-metabolomic-analysis-after-excitotoxic-injection-injury-model-of-syringomyelia
#13
Ashley E Mohrman, Mahmoud Farrag, He Huang, Stephan Ossowski, Stephanie Haft, Leah P Shriver, Nic D Leipzig
Syringomyelia is a condition of the spinal cord in which a syrinx, or fluid-filled cavity, forms from trauma, malformation, or general disorder. Previous work has shown that in noncanalicular syringomyelia irregular flow and pressure conditions enhance the volumetric growth of syrinxes. A better understanding of the underlying molecular pathways associated with syrinx formation will unveil targets for treatments and possibly prevention of syringomyelia in the future. In this study, we performed an established surgical induction of a syrinx using quisqualic acid and kaolin injections in rats to characterize the injury at the molecular level by RNA sequencing and metabolomics techniques at three and six weeks post-injury...
October 13, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27732575/fossil-evidence-of-the-avian-vocal-organ-from-the-mesozoic
#14
Julia A Clarke, Sankar Chatterjee, Zhiheng Li, Tobias Riede, Federico Agnolin, Franz Goller, Marcelo P Isasi, Daniel R Martinioni, Francisco J Mussel, Fernando E Novas
From complex songs to simple honks, birds produce sounds using a unique vocal organ called the syrinx. Located close to the heart at the tracheobronchial junction, vocal folds or membranes attached to modified mineralized rings vibrate to produce sound. Syringeal components were not thought to commonly enter the fossil record, and the few reported fossilized parts of the syrinx are geologically young (from the Pleistocene and Holocene (approximately 2.5 million years ago to the present)). The only known older syrinx is an Eocene specimen that was not described or illustrated...
October 12, 2016: Nature
https://www.readbyqxmd.com/read/27712091/sustained-high-pressure-in-the-spinal-subarachnoid-space-while-arterial-expansion-is-low-may-be-linked-to-syrinx-development
#15
Elizabeth C Clarke, David F Fletcher, Lynne E Bilston
Syringomyelia (a spinal cord cyst) usually develops as a result of conditions that cause cerebrospinal fluid (CSF) obstruction. The mechanism of syrinx formation and enlargement remains unclear, though previous studies suggest that the fluid enters via the perivascular spaces (PVS) of the penetrating arteries of the spinal cord, and that alterations in the CSF pulse timing and pressure could contribute to enhanced PVS inflow. This study uses an idealised computational model of the PVS to investigate the factors that influence peri-arterial fluid flow...
October 7, 2016: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/27676770/inaugural-hyperhidrosis-revealing-syringomyelia-in-a-spinal-cord-injured-men-t10-ais-a
#16
Charlotte Pineau, Brice Lavrard, François Boyer, Laëtitia Percebois-Macadré
OBJECTIVE: MRI has highly changed the assessment of post-traumatic syringomyelia (PTS), roughly estimated at 30% nowadays. Times to onset (TTO) symptoms are random. This case report describes how hyperhidrosis appeared and revealed PTS diagnosis. OBSERVATIONS: Mr M., 43-year-old, is rehabilitation inpatient after T10 AIS A spinal cord injury (SCI). Three months after this event, Mr M complains of acute hyperhidrosis crisis always located below the injury, which can occur at any time of the day, particularly when he moves...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27673161/poster-408-chronic-thoracic-radiculopathy-secondary-to-syrinx-responsive-to-ultrasound-guided-transverse-abdominis-plane-tap-blockade-a-case-report
#17
George Ceremuga, Joshua Sole, Rodney Samuelson
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27651871/surgical-outcome-of-adult-idiopathic-chiari-malformation-type-1
#18
Woon Tak Yuh, Chi Heon Kim, Chun Kee Chung, Hyun-Jib Kim, Tae-Ahn Jahng, Sung Bae Park
OBJECTIVE: The pathophysiology of idiopathic Chiari malformation (CM) type 1 is disturbance of free cerebrospinal fluid (CSF) flow and restoration of normal CSF flow is the mainstay of treatment. Additional migration of the medulla oblongata in pediatric patients is referred to as CM type 1.5, but its significance in adult patients is unknown. This study is to compare surgical outcomes of adult idiopathic CM type 1.5 with that of type 1. METHODS: Thirty-eight consecutive adult patients (M : F=11 : 27; median, 33...
September 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27617710/a-poroelastic-fluid-structure-interaction-model-of-cerebrospinal-fluid-dynamics-in-the-cord-with-syringomyelia-and-adjacent-subarachnoid-space-stenosis
#19
C D Bertram, Matthias Heil
An existing axisymmetric fluid/structure-interaction model of the spinal cord, pia mater, subarachnoid space and dura mater in the presence of syringomyelia and subarachnoid space stenosis was modified to include porous solids. This allowed investigation of a hypothesis for syrinx fluid ingress from cerebrospinal fluid. Gross model deformation was unchanged by the addition of porosity, but pressure oscillated more in the syrinx and the subarachnoid space below the stenosis. The poroelastic model still exhibited elevated mean pressure in the subarachnoid space below the stenosis, and in the syrinx...
September 12, 2016: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/27591060/surgical-treatment-of-sporadic-and-von-hippel-lindau-syndrome-associated-intramedullary-hemangioblastomas
#20
Marek Prokopienko, Przemysław Kunert, Anna Podgórska, Andrzej Marchel
OBJECT: Intramedullary hemangioblastomas are rare lesions. They can be related to von Hippel-Lindau syndrome or they may be sporadic. This study describes surgical treatment for this infrequent tumor. METHODS: Twelve consecutive patients received surgery to remove sporadic or von Hippel-Lindau syndrome-associated intramedullary hemangioblastomas. Patients were evaluated at four time points: before treatment, on postoperative day one, on the day of discharge, and at a follow-up examination...
2016: Neurologia i Neurochirurgia Polska
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