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https://www.readbyqxmd.com/read/28639826/imaging-appearance-of-advanced-chronic-adhesive-arachnoiditis-a-retrospective-review
#1
Tara L Anderson, Jonathan M Morris, John T Wald, Amy L Kotsenas
OBJECTIVE: Chronic adhesive arachnoiditis (CAA) is rare and has potentially devastating clinical consequences. The objective of this article is to review the clinical features of CAA and describe its appearance on imaging, to increase radiologists' awareness of this challenging diagnosis. MATERIALS AND METHODS: Twenty-nine cases of advanced CAA seen at our institution over 18 years (1995-2013) were retrospectively reviewed. Chart review was performed, with attention given to data on clinical presentation, suspected cause, and interventions performed...
June 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28637121/iatrogenic-syringomyelia-secondary-to-lumboperitoneal-shunt-altered-by-the-raised-intra-abdominal-pressure-of-pregnancy
#2
James Kersey, William Cato-Addison, Damian Holliman
We report a case of a 37 year old female with syringomyelia secondary to lumboperitoneal (LP) shunt. Syrinx regression occurred with raised intra-abdominal pressure due to pregnancy and subsequently redeveloped after parturition. To our knowledge a case of pregnancy associated syringomyelia regression has not been previously reported.
March 6, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28637118/asymptomatic-chiari-type-i-malformation-should-patients-be-advised-against-participation-in-contact-sports
#3
Robert Spencer, Paul Leach
BACKGROUND: Chiari type I malformation (CM-I) is characterised by caudal displacement of the cerebellar tonsils through the foramen magnum, crowding the craniocervical junction. It is being increasingly diagnosed in asymptomatic patients due to the widespread availability of MRI, and there are case reports of these patients suffering sudden death or neurological injury following head or neck trauma, raising the issue of whether they should be prohibited from contact sport participation, given the likelihood of frequent trauma...
March 2, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28637109/closing-the-dura-dural-hitching-versus-surgicel-and-tisseel-overlay-graft-in-craniocervicaldecompression-for-chiari-1-malformation
#4
Michael Tonkins, Naeem Farooqi, Rohan Ahmed, Saurabh Sinha, Debapriya Bhattacharyya
BACKGROUND: This study compares dural hitching to surgicel and tisseel overlay graft following craniocervical decompression and C1 laminectomy with simple durotomy for Chiari I malformation. Outcome measures were syrinx decompression, headache resolution and complication rates. METHODS: A retrospective analysis of case notes was conducted. Patients who had undergone craniocervical decompression (CCD) were grouped by method of dural closure. Outcomes compared were rates of syrinx decompression, headache resolution, and post-operative complications...
March 2, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28598915/anesthetic-and-obstetric-management-of-syringomyelia-during-labor-and-delivery-a-case-series-and-systematic-review
#5
Gráinne Patricia Garvey, Vibhangini S Wasade, Kellie E Murphy, Mrinalini Balki
BACKGROUND: Syringomyelia is a rare, slowly progressive neurological condition characterized by the presence of a syrinx within the spinal cord. Consensus regarding the safest mode of delivery and anesthetic management in patients with syringomyelia remains controversial and presents management dilemmas. This study reviews the cases of syringomyelia at our institution and provides a systematic review of the literature to guide decisions regarding labor and delivery management. METHODS: A retrospective review of cases at our hospital from 2002 to 2014 and a systematic review of the literature from 1946 to 2014 were undertaken...
June 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28596213/chamber-music-an-unusual-helmholtz-resonator-for-song-amplification-in-a-neotropical-bush-cricket-orthoptera-tettigoniidae
#6
Thorin Jonsson, Benedict D Chivers, Kate Robson Brown, Fabio A Sarria-S, Matthew Walker, Fernando Montealegre-Z
Animals use sound for communication, with high-amplitude signals being selected for attracting mates or deterring rivals. High amplitudes are attained by employing primary resonators in sound producing structures to amplify the signal (e.g., avian syrinx). Some species actively exploit acoustic properties of natural structures to enhance signal transmission by using these as secondary resonators (e.g., tree-hole frogs). Male bush-crickets produce sound by tegminal stridulation and often use specialised wing areas as primary resonators...
June 8, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28587601/cavalier-king-charles-spaniels-with-chiari-like-malformation-and-syringomyelia-have-increased-variability-of-spatio-temporal-gait-characteristics
#7
Emil Olsen, Emma Jane Suiter, Thilo Pfau, Imelda M McGonnell, Kaspar Matiasek, Anna Giejda, Holger Andreas Volk
BACKGROUND: Chiari-like malformation in the Cavalier King Charles Spaniel is a herniation of the cerebellum and brainstem into or through the foramen magnum. This condition predisposes to Syringomyelia; fluid filled syrinxes within the spinal cord. The resulting pathology in spinal cord and cerebellum create neuropathic pain and changes in gait. This study aims to quantify the changes in gait for Cavalier King Charles Spaniel with Chiari-like malformation and Syringomyelia. METHODS: We compared Cavalier King Charles Spaniel with Chiari-like malformation with (n = 9) and without (n = 8) Syringomyelia to Border Terriers (n = 8)...
June 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28586935/endoscopic-management-of-arnold-chiari-malformation-type-i-with-or-without-syringomyelia
#8
Shailendra Ratre, Nishtha Yadav, Yad Ram Yadav, Vijay Singh Parihar, Jitin Bajaj, Yatin Kher
Introduction Several different surgical techniques have been used in the treatment of patients with symptomatic Arnold-Chiari malformation type 1 (ACM-1) with or without syrinx. Endoscope-assisted decompression of the posterior fossa has been found to be safe and effective. We report our initial experience of endoscopic management of ACM-I. Material and Methods This was a prospective study of 15 symptomatic patients. Pre- and postoperative clinical status and computed tomography and magnetic resonance imaging findings were recorded...
June 6, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28583457/vertebrobasilar-insufficiency-due-to-distal-posterior-inferior-cerebellar-artery-compression-in-chiari-1-5
#9
M Burhan Janjua, Iryna Ivasyk, Jeffrey P Greenfield
Chiari malformation is characterized by radiographic evidence of herniation of cerebellar tonsils below the foramen magnum, and symptoms complex of headaches, breathing, swallowing or sleep difficulties, ataxia, restless, motor and/or sensory deficits. We report a case of a 34-year old female whose imaging indicated a Chiari 1.5 with brainstem (caudal medulla) herniation, and an expansive cervical syrinx. Her symptom complex showed signs both of cervical syringomyelia, as well as ones localizable to the medulla...
June 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28578118/clinical-and-radiologic-outcomes-following-fenestration-and-partial-wall-excision-of-idiopathic-intradural-spinal-arachnoid-cysts-presenting-with-myelopathy
#10
Vibhu Viswanathan, Sakthivel R Manoharan, Hyunwoo Do, Amy Minnema, Sophia M Shaddy, J Brad Elder, H Francis Farhadi
BACKGROUND: Intradural spinal arachnoid cysts (ISACs) with associated neurologic deficits are infrequently encountered. Various management strategies have been proposed with minimal data on comparative outcomes. OBJECTIVE: We describe the clinical and radiologic presentation as well as the outcomes of 14 surgically managed patients who presented with an ISAC and associated myelopathy. METHODS: We retrospectively reviewed the clinical course of consecutive patients presenting with neurologic deficits associated with idiopathic ISACs at our institution...
May 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28566405/intraspinal-anomalies-in-early-onset-idiopathic-scoliosis
#11
E A C Pereira, M Oxenham, K S Lam
AIMS: In the United Kingdom, lower incidences of intraspinal abnormalities in patients with early onset idiopathic scoliosis have been observed than in studies in other countries. We aimed to determine the rates of these abnormalities in United Kingdom patients diagnosed with idiopathic scoliosis before the age of 11 years. PATIENTS AND METHODS: This retrospective study of patients attending an urban scoliosis clinic identified 71 patients satisfying a criteria of: clinical diagnosis of idiopathic scoliosis; age of onset ten years and 11 months or less; MRI screening for intraspinal abnormalities...
June 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28542900/the-sensory-trigeminal-complex-and-the-organization-of-its-primary-afferents-in-the-zebra-finch-taeniopygia-guttata
#12
Macarena Faunes, J Martin Wild
Our knowledge of the avian sensory trigeminal system has been largely restricted to the principal trigeminal nucleus (PrV) and its ascending projections to the forebrain. Studies addressing the cytoarchitecture and organization of afferent input to the sensory trigeminal complex, which includes both the PrV and the nuclei of the descending trigeminal tract (nTTD), have only been performed in pigeons and ducks. Here we extend such an analysis to a songbird, the zebra finch (Taeniopygia guttata). We describe the cytoarchitecture of the sensory trigeminal complex, the patterns of calbindin-like and substance P-like immunoreactivity, and the organization of afferents from the three branches of the trigeminal nerve and from the lingual branch of the hypoglossal nerve...
May 24, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28537458/chiari-i-malformation-in-children-with-transverse-myelitis
#13
Sathya Vadivelu, Sudhakar Vadivelu, Maureen Mealy, Smurti Patel, Libby Kosnik-Infinger, Daniel Becker
PURPOSE: Transverse myelitis (TM) is an acute inflammatory spinal cord injury. Asymptomatic Chiari I malformation (CMI) management is highly controversial, particularly when associated with a spinal syrinx. Here, we assess the occurrence of CMI in the pediatric TM population and management outcomes. METHODS: We performed a retrospective cohort study based on 61 consecutively identified pediatric TM cases over an -8-year period. We reviewed demographic characteristics, radiographic findings, presenting symptoms, and long-term outcomes...
May 24, 2017: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/28512616/surgical-management-of-syringomyelia-associated-with-spinal-adhesive-arachnoiditis-a-late-complication-of-tuberculous-meningitis-a-case-report
#14
Jun Seok Lee, Geun Sung Song, Dong Wuk Son
Syringomyelia associated with tuberculous meningitis is an extremely rare condition. Only a few studies have reported clinical experience with syringomyelia as a late complication of tuberculous meningitis. Twenty-six years after a tuberculous meningitis episode, a 44-year-old man presented with progressively worsening spastic paresis of the lower limbs and impaired urinary function for 2 years. Radiological examination revealed syringomyelia extending from the level of C2 to T9 and arachnoiditis with atrophy of the spinal cord between C2 and T3...
April 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/28484540/a-common-case-with-an-unusual-association-chiari-i-malformation-with-holocord-syrinx
#15
Sumit Bansal, Sachin A Borkar, Ashok K Mahapatra
Authors are presenting a common case of Chiari malformation but with a very unusual associated finding, holocord syringomyelia, which responded to posterior fossa decompression. An 11-year-old male patient presented with progressive left hemiparesis and numbness on left half of the body for 4 years. Magnetic resonance imaging of the spine revealed peg-shaped herniation of tonsils 8 mm below the foramen magnum and holocord syringomyelia. No focal intraspinal mass was seen. Chiari I malformation with holocord syrinx was diagnosed...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28472866/innervation-of-the-syrinx-of-the-zebra-finch-taeniopygia-guttata
#16
Macarena Faunes, João F Botelho, J Martin Wild
In songbirds, the learning and maintenance of song is dependent on auditory feedback, but little is known about the presence or role of other forms of sensory feedback. Here, we studied the innervation of the avian vocal organ, the syrinx, in the zebra finch. Using a combination of immunohistochemistry, immunofluorescence and neural tracing with subunit B of cholera toxin (CTB), we analysed the peripheral and central endings of the branch of the hypoglossal nerve that supplies the syrinx, the tracheosyringeal nerve...
May 4, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28468145/experiences-in-performing-posterior-calvarial-distraction
#17
Kevin McMillan, Mark Lloyd, Martin Evans, Nicholas White, Hiroshi Nishikawa, Desiderio Rodrigues, Melanie Sharp, Pete Noons, Guirish Solanki, Stephen Dover
The use of posterior calvarial distraction (PCD) for the management of craniosynostosis is well recognized. The advantages of using this technique include increased cranial volume, decreased intracranial pressure, relief of posterior fossa crowding, improved cerebrospinal fluid (CSF) circulation at the cranio-cervical junction with cessation, and possible resolution of syrinx.The authors retrospectively review their first 50 patients who have undergone PCD under the senior author's care in our unit.The demographics, diagnoses, intraoperative approach with techniques in distractor placement and outcomes of each patient were obtained through an electronic craniofacial database and written patient records...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28428929/treatment-of-posttubercular-syringomyelia-not-responsive-to-antitubercular-therapy-case-report-and-review-of-literature
#18
Giuseppe Canova, Alessandro Boaro, Enrico Giordan, Pierluigi Longatti
Posttubercular adhesive arachnoiditis is a rare, late complication of tubercular meningitis. Syringomyelia can develop as a consequence of intramedullary cystic lesions and cerebrospinal fluid (CSF) flow disturbance around the spinal cord, even after successful chemotherapy. We reviewed the literature related to posttubercular syringomyelia treatment and suggest a new combined surgical approach. A 25-year-old Nigerian male patient presented with legs numbness, urinary disturbance, and legs weakness. Spinal magnetic resonance revealed a T5-T7 syringomyelia, secondary to adhesive spinal arachnoiditis related to a history of tuberculous meningitis...
April 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28412564/outcomes-of-patients-with-syringomyelia-undergoing-spine-deformity-surgery-do-large-syrinxes-behave-differently-than-small
#19
Amer F Samdani, Steven W Hwang, Anuj Singla, James T Bennett, Robert J Ames, Jeff S Kimball
BACKGROUND CONTEXT: A paucity of data exists studying outcomes of patients with syringomyelia undergoing spinal deformity correction. The literature does not stratify patients by syrinx size, which is likely a major contributor to outcomes. PURPOSE: To compare differences in outcomes between patients with large (≥ 4mm) and small syrinxes (< 4mm) undergoing spinal deformity correction. DESIGN: Retrospective review PATIENT SAMPLE: 28 patients (11 with large syrinx [LS, ≥ 4mm] and 17 with small syrinx [SS, < 4mm])...
April 12, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28357553/misdiagnosed-syrinx-in-a-patient-with-neuroschisis-and-klippel-feil-syndrome-case-report
#20
Vlad Voin, Nitsa Topale, Joe Iwanaga, Rod J Oskouian, R Shane Tubbs
INTRODUCTION: Patients with Klippel-Feil syndrome can present with a myriad of symptoms and imaging findings. Herein, we present a case of Klippel-Feil syndrome that was initially misdiagnosed with syringomyelia. We review this case and discuss the imaging findings. CONCLUSIONS: Neuoroschisis should be suspected in patients with Klippel-Feil syndrome and differentiated from syringomyelia.
March 29, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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