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Artículos de revistas sobre el tema "Syringomyelia"

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Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 4 de marzo de 2023

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1

Fenchel, M., F. Roser, T. Nägele, U. Ernemann y M. Horger. "Syringomyelia – Syringomyelie". RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren 184, n.º 03 (17 de febrero de 2012): 191–95. http://dx.doi.org/10.1055/s-0031-1274771.

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2

Arévalo-Sáenz, Alejandra y Manuel Pedrosa Sánchez. "Dorsal hemangioblastoma with holocord syringomyelia: case report". Neurohirurgija - The Serbian Journal of Neurosurgery 2, n.º 1 (31 de diciembre de 2022): 13–16. http://dx.doi.org/10.55005/v2i1.4.

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Introduction: Intramedullary hemangioblastomas are usually accompanied by syringomyelia. However, a holocord syringomyelia is rare. The most common cause of syringomyelia continues to be Chiari disease, and only 10 cases of hemangioblastomas with holocord syringomyelia reported so far. Case report: We present a case of a 35-year-old patient with a two-month history of cervicobrachialgia at the C7-C8 root level, previously preceded by pain at the D1-D2 level. Cervico-dorso-lumbar MRI revealed a medullar tumor with hyper-uptake mural nodule at the conus medullaris level accompanied by an extensive syringomyelic cavity from C5 to L1 compatible with medullary hemangioblastoma. The patient underwent surgery for tumor resection with subsequent resolution of her painful symptoms. Conclusion: It is important to note that the surgery is aimed at treating the origin of this syringomyelia and not the syringomyelia itself. Although the majority of patients with holocord syringomyelia have Chiari as its cause, the possibility of focal spinal intramedullary tumors as being responsible for syringomyelia should not be forgotten.

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3

Akgun, Bekir, Ahmet Cemil Ergun, Ibrahim Hanifi Ozercan y Selman Kok. "Intradural Extramedullary Epidermoid Cyst at the Conus Medullaris Level with Thoracic Syringomyelia: A Case Report". Acta Medica (Hradec Kralove, Czech Republic) 62, n.º 1 (2019): 39–42. http://dx.doi.org/10.14712/18059694.2019.45.

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Spinal epidermoid cysts are benign tumors. Syringomyelia secondary to intramedullary tumors are frequently observed. However, the association between syringomyelia and spinal intradural extramedullary epidermoid cyst in the conus medullaris region is extremely rare. We present the case of a 3-year-old male who was admitted with paraparesis and urinary retention. Magnetic resonance imaging (MRI) of the spine demonstrated intradural extramedullary lesion, compatible with epidermoid cyst, that at the conus medullaris level and a large syringomyelia extending from T4 to L1 vertebrae. Total microsurgical excision of the cyst was performed. No additional drainage was carried out for the syringomyelic cavity. Histopathological examination verified the diagnosis of the epidermoid cyst. Total excision of the cyst and disappearance of the syringomyelia were observed on MRI at 15 days postoperatively. We have clarified the etiology, clinical, histopathological and radiological features, differential diagnosis, and treatment modalities of spinal epidermoid cysts. In addition, we have discussed the possible mechanisms of syringomyelia formation in spinal intradural lesions.

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4

Kokmen, E., W. R. Marsh y H. L. Baker. "Magnetic Resonance Imaging in Syringomyelia". Neurosurgery 17, n.º 2 (1 de agosto de 1985): 267–70. http://dx.doi.org/10.1227/00006123-198508000-00003.

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Abstract Myelography and myelography assisted with computed tomography have been the most commonly used radiographic methods in the study of syringomyelia. These studies have never been entirely reliable in demonstrating the syrinx cavity and its relationship to other intracranial structures. During the 1st year of operation of the magnetic resonance imaging facility, the syringomyelic cavity was demonstrated in 15 patients who all had typical clinical signs and symptoms associated with syringomyelia. Nine cases were syringomyelia with Chiari malformation. One case showed additional hydrocephalus. Four cases were idiopathic, and 1 case was remotely posttraumatic. Magnetic resonance imaging, although it is in its infancy, already promises to be the most important radiographic technique for syringomyelia because it provides an anatomically truthful visualization of the sagittal plane of the cervical cord and can demonstrate the syrinx cavity and its relationship with the cerebellar tonsils, the 4th ventricle, and other related structures.

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5

Nagahiro, Shinji, Yasuhiko Matsukado, Jun-ichi Kuratsu, Yoshiki Saito y Seishi Takamura. "Syringomyelia and Syringobulbia Associated with an Ependymoma of the Cauda Equina Involving the Conus Medullaris: Case Report". Neurosurgery 18, n.º 3 (1 de marzo de 1986): 357–60. http://dx.doi.org/10.1227/00006123-198603000-00020.

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Abstract A patient with syringomyelia and syringobulbia secondary to an asymptomatic ependymoma of the cauda equina involving the conus medullaris is described. Delayed metrizamide computed tomography myelography was decisive for making the diagnosis of a highly extended syrinx associated with the tumor. Syringomyelic symptoms improved remarkably following the removal of the tumor, and the syrinx was not visualized in a postoperative study. The pathogenesis of syringomyelia associated with a caudally located spinal cord tumor is discussed.

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6

Batzdorf, Ulrich, Larry T. Khoo y David L. McArthur. "OBSERVATIONS ON SPINE DEFORMITY AND SYRINGOMYELIA". Neurosurgery 61, n.º 2 (1 de agosto de 2007): 370–78. http://dx.doi.org/10.1227/01.neu.0000279971.87437.1f.

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Abstract OBJECTIVE Spine deformities, notably scoliosis, are known to occur in conjunction with syringomyelia. This study aims to analyze the effect of laminectomies performed in the course of treatment of syringomyelia. It examines the incidence, severity, and type of spine deformity as it relates to the extent and location of laminectomies performed. METHODS Records of 169 patients were analyzed for evidence of spinal deformity on imaging studies for the extent of the syringomyelic cavities and for previous surgical procedures on the spine. This analysis included patients with syringomyelia related to Chiari malformation, as well as patients with primary spinal pathology. RESULTS Spinal deformities were encountered in 41% of Chiari-syringomyelia patients who had not undergone previous surgery and in 57% of such patients who underwent reoperation. Scoliosis, the most common type of deformity encountered, was likely to be mild in patients who had not undergone previous surgery and severe in reoperated patients. Spine deformity was significantly more common in those patients who had more extensive bone removal. CONCLUSION Complete laminectomy should be avoided whenever possible in patients with syringomyelia because local denervation of the axial musculature, added to loss of medial anterior horn cells from syringomyelia, favors the development of spine deformities. This is particularly true of laminectomies performed at the junctional areas of the spine, i.e., cervical-thoracic and thoracolumbar. Hemilaminectomy usually suffices for shunt placement; instrumented stabilization should be considered in patients undergoing full laminectomy, especially those considered to be at high risk of developing deformity.

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7

Derevyanko, Kh P. y Sh M. Safin. "Chiari malformation type I and syringomyelia as keys to understanding CSF circulation (literature review)". Vestnik nevrologii, psihiatrii i nejrohirurgii (Bulletin of Neurology, Psychiatry and Neurosurgery), n.º 8 (16 de agosto de 2022): 627–35. http://dx.doi.org/10.33920/med-01-2208-07.

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Pathophysiology of syringomyelia has not been understood completely. The basic «piston» theory is that the downward movement of the cerebellar tonsils that occurs during the cardiac cycle acts like a «piston» on the partially closed spinal subarachnoid space and results in the formation of a syringomyelitic cavity. However, this still needs to be confirmed by additional experimental data. The main pathogenetic question is how the cerebrospinal fluid enters and remains in the syringomyelic cavity, where the pressure is higher than in the subarachnoid space. Based on the literature data on the pathogenesis of Chiari I malformation with syringomyelia, we modeled and presented our vision of the pathogenesis. Our assumption about the formation of syringomyelia in Chiari I malformation is that there may be a CSF channel between the fourth ventricle and the syrinx. This channel takes on the function of a one-way valve when slightly squeezed and with cyclic movements of the cerebellar tonsils. Decompression of the tonsils turns off the one-way valve, collapsing the syrinx. Perhaps this assumption will serve as a working hypothesis for further study of the pathophysiology of Chiari malformation type I and syringomyelia.

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8

Batzdorf, Ulrich. "Chiari I malformation with syringomyelia". Journal of Neurosurgery 68, n.º 5 (mayo de 1988): 726–30. http://dx.doi.org/10.3171/jns.1988.68.5.0726.

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✓ Five patients with a Chiari I-syringomyelia complex of adult onset were evaluated by magnetic resonance (MR) imaging. All patients underwent suboccipital craniotomy with upper cervical (C-1 and part of C-2) laminectomy, arachnoid retraction, and duraplasty. Postoperative MR studies of four patients disclosed collapse of the syringomyelic cavity, even when the cavity extended into the thoracic region. This appeared to be a progressive process taking place over several weeks. Operative complications are noted and physiological implications are discussed.

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9

Tarianyk, Kateryna, Natalia Lytvynenko, Tetiana Purdenko y Viktoriia Hladka. "DIAGNOSTIC ERRORS DURING INTRAMEDULLAR PROCESSES". Wiadomości Lekarskie 72, n.º 1 (enero de 2019): 129–32. http://dx.doi.org/10.36740/wlek201901125.

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Introduction: The article describes a clinical case of a malignant tumor of the brain and spinal cord with metastasis, which remained undetected for many years and was treated as syringomyelia. Long-term exhausting examinations of the brain and spinal cord, dynamic follow-up of medical specialists, and repeated surgical interventions on the spine helped to differentiate this process and make the correct diagnosis. The aim: The objectives of the present paper are to analyze the existing classifications of syringomyelia; to examine its etiology, pathogenesis, diagnostic approaches and treatment tactics; to present a clinical case of a malignant tumor of the brain and spinal cord with metastasis, which was misdiagnosed as syringomyelia. Materials and methods: The authors analyzed the existing classifications of syringomyelia and studied its etiology, pathogenesis, diagnostic approaches and treatment tactics using the method of content analysis, analyticalб comparative and contrastive methods. Clinical case: The described clinical case is a variant of the course of syringomyelia, associated with the spinal cord tumor, namely, in particular, anaplastic ependymoma. For a long time, the process remained undetected, despite the long-term examination and drainage of the syringomyelic cavity. Analyzing this case, it is highly important to pay attention to careful history collection, examination of the patient, analysis of the occurrence of certain disorders in order to conduct the neuroimaging examinations in time. Conclusions: Favorable outcome of the disease is directly related to the diagnosis at early stages, especially in young people, the clinical variant of the process, progression of the course, the degree of involvement of various parts of the nervous system and extraneural formations, the severity of the lesion. The treatment tactics and the ability to restore the functions will depend on all these factors.

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10

Oldfield, Edward H. "Syringomyelia". Journal of Neurosurgery: Spine 95, n.º 1 (julio de 2001): 153–55. http://dx.doi.org/10.3171/spi.2001.95.1.0153.

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11

Wagner, Wolfgang. "Syringomyelia". Journal of Neurosurgery: Spine 9, n.º 6 (diciembre de 2008): 621. http://dx.doi.org/10.3171/spi.2008.9.17409l.

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12

Gamache, Francis W. y Thomas B. Ducker. "Syringomyelia". Journal of Spinal Disorders & Techniques 3, n.º 4 (diciembre de 1990): 293???298. http://dx.doi.org/10.1097/00024720-199012000-00003.

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13

Lu, Yi y Michael Y. Wang. "Syringomyelia". Contemporary Spine Surgery 15, n.º 2 (febrero de 2014): 1–8. http://dx.doi.org/10.1097/01.css.0000442957.82068.f1.

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14

&NA;. "Syringomyelia". Contemporary Spine Surgery 15, n.º 2 (febrero de 2014): 8. http://dx.doi.org/10.1097/01.css.0000442958.89692.39.

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15

Noordeen, M. H. H., B. A. Taylor y M. A. Edgar. "Syringomyelia". Spine 19, n.º 12 (junio de 1994): 1406–9. http://dx.doi.org/10.1097/00007632-199406000-00018.

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16

Vandertop, W. "Syringomyelia". Neuropediatrics 45, n.º 01 (22 de noviembre de 2013): 003–9. http://dx.doi.org/10.1055/s-0033-1361921.

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17

Hinokuma, Kaoru, Eisaku Ohama, Kiyomitsu Oyanagi, Akiyoshi Kakita, Kensuke Kawai y Fusahiro Ikuta. "Syringomyelia". Pathology International 42, n.º 1 (enero de 1992): 25–34. http://dx.doi.org/10.1111/j.1440-1827.1992.tb01107.x.

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18

Sagástegui-Rodríguez, Jose Alberto y Salvador Cruz-Flores. "Syringomyelia". New England Journal of Medicine 346, n.º 1 (3 de enero de 2002): e1. http://dx.doi.org/10.1056/enejmicm960106.

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19

Yeh, Peter Chia, Prathap Jayaram y Paul Paily. "Syringomyelia". American Journal of Physical Medicine & Rehabilitation 94, n.º 12 (diciembre de 2015): e125-e126. http://dx.doi.org/10.1097/phm.0000000000000368.

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20

Sternberg, Michael L. y Michael L. Gunter. "Syringomyelia". Journal of Emergency Medicine 53, n.º 2 (agosto de 2017): e31-e32. http://dx.doi.org/10.1016/j.jemermed.2017.04.029.

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21

Michals, Edward A. y Ruth G. Ramsey. "Syringomyelia". Orthopaedic Nursing 15, n.º 5 (septiembre de 1996): 33???40. http://dx.doi.org/10.1097/00006416-199609000-00011.

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22

Williams, Bernard. "Syringomyelia". Neurosurgery Clinics of North America 1, n.º 3 (julio de 1990): 653–85. http://dx.doi.org/10.1016/s1042-3680(18)30795-2.

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23

Gamache, Francis W. y Thomas B. Ducker. "Syringomyelia". Journal of Spinal Disorders 3, n.º 4 (diciembre de 1990): 293???298. http://dx.doi.org/10.1097/00002517-199012000-00003.

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24

Woodward, Sue. "Syringomyelia". British Journal of Neuroscience Nursing 2, n.º 10 (diciembre de 2006): 505–6. http://dx.doi.org/10.12968/bjnn.2006.2.10.22534.

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25

Batzdorf, Ulrich, Jörg Klekamp y J. Patrick Johnson. "A critical appraisal of syrinx cavity shunting procedures". Journal of Neurosurgery 89, n.º 3 (septiembre de 1998): 382–88. http://dx.doi.org/10.3171/jns.1998.89.3.0382.

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Object. This study was conducted to evaluate the results of shunting procedures for syringomyelia. Methods. In a follow-up analysis of 42 patients in whom shunts were placed in syringomyelic cavities, the authors have demonstrated that 21 (50%) developed recurrent cyst expansion indicative of shunt failure. Problems were encountered in patients with syringomyelia resulting from hindbrain herniation, spinal trauma, or inflammatory processes. A low-pressure cerebrospinal fluid state occurred in two of 18 patients; infection was also rare (one of 18 patients), but both are potentially devastating complications of shunt procedures. Shunt obstruction, the most common problem, was encountered in 18 patients; spinal cord tethering, seen in three cases, may account for situations in which the patient gradually deteriorated neurologically, despite a functioning shunt. Conclusions. Placement of all types of shunts (subarachnoid, syringoperitoneal, and syringopleural) may be followed by significant morbidity requiring one or more additional surgical procedures.

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26

Hoffman, Harold J., John Neill, Kerry R. Crone, Bruce E. Hendrick y Robin P. Humphreys. "Hydrosyringomyelia and Its Management in Childhood". Neurosurgery 21, n.º 3 (1 de septiembre de 1987): 347–51. http://dx.doi.org/10.1227/00006123-198709000-00012.

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Abstract Syringomyelia, once regarded as a degenerative disease of adults, is now recognized to be a disorder usually associated with the Chiari malformation and occurring in patients of all ages. We have reviewed 47 patients with syringomyelia treated on the Neurosurgical Service at the Hospital for Sick Children during the years 1977 to 1985. Twelve of these patients had a Chiari I malformation, 30 had a Chiari II malformation, and 5 had an acquired Chiari malformation. Thirty-one of these patients were treated by decompression of the Chiari malformation and plugging of the obex, 5 were treated by a simple posterior fossa decompression, 9 were treated by shunting of the syringomyelic cavity, and 2 were treated by a combined decompression of the posterior fossa and shunting of the syrinx. The Gardner procedure (decompression of the Chiari malformation and plugging of the obex) was the procedure most commonly used in managing our group of patients and resulted in improvement in over 70% of patients.

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27

Romero, Flávio Ramalho y Clemente Augusto de Brito Pereira. "Suboccipital craniectomy with or without duraplasty: what is the best choice in patients with Chiari type 1 malformation?" Arquivos de Neuro-Psiquiatria 68, n.º 4 (agosto de 2010): 623–26. http://dx.doi.org/10.1590/s0004-282x2010000400027.

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The best surgical treatment for Chiari malformation is unclear, especially in patients with syringomyelia. We reviewed the records of 16 patients who underwent suboccipital craniectomy at our institution between 2005 and 2008. Of the six patients who did not undergo duraplasty, four showed improvement postoperatively. Two patients without syringomyelia showed improvement postoperatively. Of the four patients with syringomyelia, three showed improvement, including two with a decrease in the cavity size. One patient showed improvement in symptoms but the syringomyelia was unchanged. The cavity size increased in the one patient who did not show improvement. Among the 10 patients who underwent duraplasty, improvements were noted in four of the five patients without syringomyelia and in all of the five with syringomyelia. There is a suggestion that patients with syringomyelia may have a higher likelihood of improvement after undergoing duraplasty.

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28

Savic, Dejan, Slobodan Vojinovic, Mirjana Spasic, Zoran Peric y Stevo Lukic. "Syringomyelia in demyelinating disease of the central nervous system: Report of two cases". Srpski arhiv za celokupno lekarstvo 139, n.º 9-10 (2011): 657–60. http://dx.doi.org/10.2298/sarh1110657s.

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Introduction. Syringomyelia is a cavitary extension inside the spinal cord which can be either symptomatic or congenitally-idiopathic. Syringomyelia during the course of the disease in patients presenting with clinically definite multiple sclerosis was described earlier. Syringomyelia in patients presenting with a clinically isolated syndrome suggestive of multiple sclerosis is unusual. Case Outline. We present two patients presenting with demy-elinating disease of the central nervous system with syringomyelia in the cervical and thoracic spinal cord. We did not find classical clinical signs of syringomyelia in our patients, but we disclosed syringomyelia incidentally during magnetic resonance exploration. Magnetic resonance exploration using the gadolinium contrast revealed the signs of active demyelinating lesions in the spinal cord in one patient but not in the other. Conclusion. Syringomyelia in demyelinating disease of the central nervous system opens the question whether it is a coincidental finding or a part of clinical features of the disease. Differentiation of the significance of syringomyelia finding in these patients plays a role in the choice of treatment concept in such patients.

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29

Kyoshima, Kazuhiko y Enver I. Bogdanov. "Spontaneous Resolution of Syringomyelia: Report of Two Cases and Review of the Literature". Neurosurgery 53, n.º 3 (1 de septiembre de 2003): 762–69. http://dx.doi.org/10.1227/01.neu.0000079629.05048.a2.

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Abstract OBJECTIVE AND IMPORTANCE The natural history of syringomyelia is highly unpredictable, and some patients experience improvement or stabilization without surgery. However, the mechanisms of the formation and spontaneous resolution of syringomyelia remain controversial. This report concerns two patients with syringomyelia who demonstrated spontaneous reductions in syrinx size, accompanied by symptomatic improvement. CLINICAL PRESENTATION One patient was a 10-year-old girl with syringomyelia associated with a tight cisterna magna and basilar impression, who demonstrated a spontaneous decrease in syrinx size, accompanied by symptomatic improvement, in 22 months. The other patient was a 39-year-old man with syringomyelia associated with a Chiari I malformation, who demonstrated a spontaneous reduction in syrinx size and neurological improvement, accompanied by elevation of the cerebellar tonsils, 6 months after diagnosis. INTERVENTION The patients were monitored. CONCLUSION The mechanisms of spontaneous resolution of syringomyelia, as well as the factors leading to the cerebrospinal fluid flow disturbances that cause syringomyelia, may vary. Resolution of foramen magnum lesion-related syringomyelia may be the result of spontaneous correction of the abnormal cerebrospinal fluid flow, as observed in our cases, or of cavity fluid drainage into the spinal arachnoid space because of spinal cord fissuring.

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30

Roser, Florian y Marcos S. Tatagiba. "Posttraumatic Syringomyelia". Journal of Neurosurgery: Spine 6, n.º 2 (febrero de 2007): 193. http://dx.doi.org/10.3171/spi.2007.6.2.193.

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31

Osama, Muhammad y Furqan Yaqoob. "CERVICAL SYRINGOMYELIA;". Professional Medical Journal 24, n.º 04 (6 de abril de 2017): 627–32. http://dx.doi.org/10.29309/tpmj/2017.24.04.1532.

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Background: Cervical syringomyelia is a rare condition and which can beidiopathic or secondary to trauma. Syrinx is most often treated surgically but can be risky atcervical level thus conservative management should be considered, however literature lacksregarding the role of conservative physical therapy management of cervical syringomyelia.Case description: A 33 year old man with an idiopathic syrinx at C6-C7 level presented with achief complaint of neck pain, radiating to his right arm, associated with paresthesia involvingIndex and Middle finger and a positive spurling test with postural deviation and associateddisability. Intervention and Outcomes: The patient received physical therapy managementconsisting of pain management, cervical traction, joint mobilization and soft tissue manualtherapy aimed at postural and biomechanical correction in combination with medications. Thepatient’s symptoms improved from 80/100mm to 30/100mm on Visual Analogue Scale and39 to 25 on Neck Disability Index (NDI). Marked improvement was also observed in cervicalposture and Range of Motion (ROM). Discussion and Conclusion: Conservative managementincluding medication and physical therapy of a patient with cervical syrinx do not decreasethe cervical syrinx size but can alleviate patient’s signs and symptoms by postural andbiomechanical correction at the segmental level leading to normalization of spinal curves anddecreased tensional and compressive stress on spinal tissue.

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32

Pervushin, G. V. "Syringomyelia case". Kazan medical journal 20, n.º 3 (11 de agosto de 2021): 292–95. http://dx.doi.org/10.17816/kazmj76467.

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33

Bonner, John. "Syringomyelia scheme". BSAVA Companion 2012, n.º 1 (1 de enero de 2012): 4–7. http://dx.doi.org/10.22233/20412495.0112.4.

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34

Sarkarati, M. y R. M. Weinstein. "Secondary syringomyelia". Neurology 43, n.º 4 (1 de abril de 1993): 848. http://dx.doi.org/10.1212/wnl.43.4.848-a.

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35

Feve, A., C. Wallays, M. H. Nicolle y A. Guillard. "Secondary syringomyelia". Neurology 43, n.º 4 (1 de abril de 1993): 848. http://dx.doi.org/10.1212/wnl.43.4.848-b.

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36

Busis, N. A. y F. H. Hochberg. "Familial syringomyelia." Journal of Neurology, Neurosurgery & Psychiatry 48, n.º 9 (1 de septiembre de 1985): 936–38. http://dx.doi.org/10.1136/jnnp.48.9.936.

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37

Duncan, J. S., N. M. Hyman y C. B. Adams. "Familial syringomyelia". Journal of Neurology, Neurosurgery & Psychiatry 49, n.º 6 (1 de junio de 1986): 720–21. http://dx.doi.org/10.1136/jnnp.49.6.720.

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38

Yokota, Hiroshi, Ryo Tamaki, Tadashi Sugimoto, Kaoru Horiuchi, Kosuke Mori, Seisuke Miyamae, Takahide Yaegaki, Haku Tanaka y Jun-Ichi Iida. "Communicating Syringomyelia". World Neurosurgery 140 (agosto de 2020): 96–100. http://dx.doi.org/10.1016/j.wneu.2020.05.073.

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39

Hida, Kazutoshi, Yoshinobu Iwasaki, Hiroyuki Imamura y Hiroshi Abe. "Posttraumatic Syringomyelia". Neurosurgery 35, n.º 5 (1 de noviembre de 1994): 886–91. http://dx.doi.org/10.1227/00006123-199411000-00012.

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40

Hida, Kazutoshi, Yoshinobu Iwasaki, Hiroyuki Imamura y Hiroshi Abe. "Posttraumatic Syringomyelia". Neurosurgery 35, n.º 5 (noviembre de 1994): 886???891. http://dx.doi.org/10.1097/00006123-199411000-00012.

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41

Bhatoe, Harjinder S. "Posttraumatic syringomyelia". Indian Journal of Neurotrauma 6, n.º 1 (junio de 2009): 21–26. http://dx.doi.org/10.1016/s0973-0508(09)80023-3.

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42

Coumans, Jean-Valery, Brian P. Walcott, William E. Butler, Brian V. Nahed y Kristopher T. Kahle. "Volumetric analysis of syringomyelia following hindbrain decompression for Chiari malformation Type I: syringomyelia resolution follows exponential kinetics". Neurosurgical Focus 31, n.º 3 (septiembre de 2011): E4. http://dx.doi.org/10.3171/2011.6.focus11106.

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Object Resolution of syringomyelia is common following hindbrain decompression for Chiari malformation, yet little is known about the kinetics governing this process. The authors sought to establish the volumetric rate of syringomyelia resolution. Methods A retrospective cohort of patients undergoing hindbrain decompression for a Chiari malformation Type I with preoperative cervical or thoracic syringomyelia was identified. Patients were included in the study if they had at least 3 neuroimaging studies that detailed the entirety of their preoperative syringomyelia over a minimum of 6 months postoperatively. The authors reconstructed the MR images in 3 dimensions and calculated the volume of the syringomyelia. They plotted the syringomyelia volume over time and constructed regression models using the method of least squares. The Akaike information criterion and Bayesian information criterion were used to calculate the relative goodness of fit. The coefficients of determination R2 (unadjusted and adjusted) were calculated to describe the proportion of variability in each individual data set accounted for by the statistical model. Results Two patients were identified as meeting inclusion criteria. Plots of the least-squares best fit were identified as 4.01459e−0.0180804x and 13.2556e−0.00615859x. Decay of the syringomyelia followed an exponential model in both patients (R2 = 0.989582 and 0.948864). Conclusions Three-dimensional analysis of syringomyelia resolution over time enables the kinetics to be estimated. This technique is yet to be validated in a large cohort. Because syringomyelia is the final common pathway for a number of different pathological processes, it is possible that this exponential only applies to syringomyelia related to treatment of Chiari malformation Type I.

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Sun, John C. L., Paul Steinbok y D. Douglas Cochrane. "Spontaneous resolution and recurrence of a Chiari I malformation and associated syringomyelia". Journal of Neurosurgery: Spine 92, n.º 2 (abril de 2000): 207–10. http://dx.doi.org/10.3171/spi.2000.92.2.0207.

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✓ The spontaneous resolution of syringomyelia has been reported infrequently. In patients with Chiari I malformations, resolution of the syringomyelia has sometimes been associated with improvement of their malformation. The authors present a case of spontaneous resolution followed by recurrence of syringomyelia and a corresponding change in the Chiari malformation. This case is of interest in light of the theories postulated to explain spontaneous resolution of syringomyelia.

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Coppa, Nicholas D., H. Jeffrey Kim y Kevin M. McGrail. "Spontaneous resolution of syringomyelia and Chiari malformation Type I in a patient with cerebrospinal fluid otorrhea". Journal of Neurosurgery 105, n.º 5 (noviembre de 2006): 769–71. http://dx.doi.org/10.3171/jns.2006.105.5.769.

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✓ The spontaneous resolution of syringomyelia in the setting of a Chiari malformation Type I (CM-I) has been reported infrequently. Several theories about the pathogenesis and spontaneous resolution of syringomyelia associated with CM-I have been proposed. The authors present the case of a patient with spontaneous resolution of a CM-I and syringomyelia coinciding with the development of cerebrospinal fluid (CSF) otorrhea. Although cases of spontaneous resolution of syringomyelia have been reported, this is the first reported case of spontaneous resolution of syringomyelia and a CM-I associated with the simultaneous development of CSF otorrhea.

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Karpov, O. E., O. Yu Bronov, V. M. Kitaev, P. S. Vetshev, A. A. Zuev y Yu A. Filippov. "MR-VISUALIZATION IN PATIENTS WITH SYRINGOMYELIA ASSOCIATED WITH ADHESIVE ARACHNOPATHY". Medical Visualization, n.º 2 (28 de abril de 2018): 77–83. http://dx.doi.org/10.24835/1607-0763-2018-2-77-83.

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Objective: to study the basic characteristics of changes revealed by MRI in patients with syringomyelia associated arachnopathy before and after surgery.Materials and methods. MRI was performed in 58 pat ients with syringomyelia before and after surgery in period from 2013 to 2016.Results.The diagnosis “syringomyelia” was approved in 41 patients. There was huge regression (more than 50% of volume) of syringomyelia cavity in 17 (41.4%) patients. In 20 (48.7%) patients marked decrease in size syringomyelia cavity (less than 50%), the volume expansion of the front and rear of cerebrospinal fluid spaces.Conclusions. The use of modern MRI Protocol in various types of syringomyelia allows not only to detect and give a comprehensive feature cavities, but also to detect adhesions, location and length, as well as to assess the dynamics of the disease after surgical treatment.

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Laxton, Adrian W. y Richard G. Perrin. "Cordectomy for the treatment of posttraumatic syringomyelia". Journal of Neurosurgery: Spine 4, n.º 2 (febrero de 2006): 174–78. http://dx.doi.org/10.3171/spi.2006.4.2.174.

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✓Cordectomy is an effective treatment option in patients in whom posttraumatic syringomyelia develops following complete spinal cord injuries. Since the introduction of cordectomy, numerous approaches to the surgical treatment of posttraumatic syringomyelia have been developed. These newer developments have drawn the attention of surgeons and researchers away from cordectomy. In this report, the authors encourage a reconsideration of cordectomy for the treatment of posttraumatic syringomyelia after complete spinal cord injury. They describe four patients with posttraumatic syringomyelia who were treated successfully with cordectomy and review appropriate literature, examining the effectiveness of cordectomy in the treatment of posttraumatic syringomyelia. The findings of this review indicate that neurological improvement or stabilization occurred in 88% of patients in published reports of posttraumatic syringomyelia treated with cordectomy. The indications for cordectomy as well as factors that may contribute to the procedure’s success are discussed.

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Peettakkandy, Vijayan, Bijukrishnan Rajagopalawarrier, Sreenath Kuniyil y Jithin Veliyath Thankaraj. "Factors predicting the occurrence of syringomyelia in patients with Chiari I malformations". International Journal of Research in Medical Sciences 7, n.º 8 (25 de julio de 2019): 2967. http://dx.doi.org/10.18203/2320-6012.ijrms20193378.

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Background: Chiari I malformations are defined as the downward herniation of cerebellar tonsils more than 5 mm through the foramen magnum. Syringomyelia is a common association of Chiari I malformation.Methods: This purpose of this study was to determine the various factors predicting the occurrence of syringomyelia in patients with Chiari I malformations. This retrospective study was conducted in Government medical college, Thrissur, Kerala, India. 27 patients admitted with diagnosis of symptomatic Chiari I malformations during the period of January 2015 to January 2019 were selected for the study.Results: The mean age was 22.8 years and syringomyelia was more common in patients older than 10 years (p value0.005). Females were 17(63%) and males were 10(37%) but there no difference in occurrence of syringomyelia among both sexes(p value is 0.16). Syringomyelia was present in 17(63%) cases. Association between various factors and syringomyelia measured by calculating P value which was 0.005 for age >10 years, 0.16 for sex, 0.093 for duration of symptoms >12 months, 0.05 for tonsillar descend >10mm and 0.097 for hypertension. The p value for the association of duration of symptoms >12months and extend of tonsillar descend is 0.001 Mean duration of symptoms (onset of first symptom to the time of presentation) was 16.3 months and syringomyelia was more common in patients with duration of symptoms more than 12 months but this difference was statistically not significant (p value 0.093). Mean tonsillar descend from the level of foramen magnum was 11.3 mms and syringomyelia was more common in patients with tonsillar herniation more than 10mm (p value 0.05). There is a statistically significant relationship between duration of symptoms more than 12 months and tonsillar descend more than 10mm(p value 0.001).There is no significant association between hypertension and occurrence of syringomyelia in patients with Chiari I malformation.Conclusions: Incidence of Chiari I Malformations is more among adults and it is slightly higher in females. Syringomyelia is a common association of Chiari I Malformations. The occurrence of syringomyelia in patients with Chiari I Malformations associated with increasing age of patients and extend of tonsillar herniation. There is no statistically significant association between syringomyelia and duration of symptoms or hypertension.

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Samanci, Yavuz y Suat Erol Celik. "Extramedullary Myxopapillary Ependymoma of the Filum Terminale Associated With Syringomyelia: A Case Report". Romanian Neurosurgery 20, n.º 4 (1 de diciembre de 2013): 395–98. http://dx.doi.org/10.2478/romneu-2013-0023.

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Abstract Aim: Ependymomas compose the majority of all intradural intramedullary spinal lesions. Filum terminale lesions are rarely associated with syringomyelia. Here we describe a case of extramedullary myxopapillary ependymoma associated with extensive syringomyelia located in the filum terminale. Material and Methods: A 34-year-old man admitted to our clinic with complaints of bilateral leg weakness, back pain and urinary dysfunction. The magnetic resonance imaging (MRI) of the patient showed us a contrast enhanced intraspinal mass at the level of L2 with a syringomyelia extending from L2 level to Th7 level. Results: The patient was operated via lumbar laminoplasty and tumor was totally resected. Conclusion: The removal of tumor is also sufficient for the resolution of syringomyelia and no additional procedure is essential for the treatment of syringomyelia in such cases. This is the first case of extramedullary tumors of the cauda equine with extensive syringomyelia.

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Selezneva, A. V., E. G. Mendelevich, I. M. Mikhailov, L. R. Valieva y E. I. Bogdanov. "MRT peculiarities of posterior cranial fossa in family syringomyelia". Neurology Bulletin XXXV, n.º 1-2 (20 de abril de 2003): 44–46. http://dx.doi.org/10.17816/nb89666.

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It was found that syringomyelic patients and clinically healthy people out of the families with MRT-features of Chiari malformation, type I, had a confident decrease of depth and square of posterior cranial fossa. Relatives of patients, having no signs of Chiari malformation, type I, had the same changes as well. There was made a conclusion about presence of posterior cranial fossa hypoplasia in all patients with hereditary syryngomyelia and in members of their families, both having MRT-features of Chiari malformation type I, and having no malformation. It was supposed that posterior cranial fossa hypoplasia is a neurovisual reflection of its hereditary phonotype, and the latter in some cases leads to cerebellar tonsil ptosis, and if there are some endogenic and exogenic factors to development of family syringomyelia.

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Venkata, Savitr Sastri Bhagavathula, Arivazhagan Arimappamagan, Spiros Lafazanos y Nupur Pruthi. "Syringomyelia secondary to cervical spondylosis: Case report and review of literature". Journal of Neurosciences in Rural Practice 05, S 01 (diciembre de 2014): S078—S082. http://dx.doi.org/10.4103/0976-3147.145215.

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ABSTRACTSyringomyelia secondary to cervical spondylosis is a rare entity to encounter in clinical practice. We discuss the case of a 53-year-old lady who presented with a syringomyelic syndrome and was found to have cervical spondylosis on imaging. Cine-MRI revealed an obstruction of cerebrospinal fluid (CSF) flow in the cervical spinal subarachnoid space. Decompression of the same led to clinical and radiological improvement. There is a potential causal association between cervical spondylosis and syringomyelia. MRI CSF flow studies may help in deciding the course of treatment in such cases. A subset of patients with cervical spondylosis and concurrent spinal cord signal intensity changes may show reversal of the same following intervention.

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