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Arachnoiditis

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https://www.readbyqxmd.com/read/29151132/safety-of-intrathecal-route-focus-to-methylprednisolone-acetate-depo-medrol-use
#1
REVIEW
Joël Schlatter, David Nguyen, Michèle Zamy, Sofiane Kabiche, Jean-Eudes Fontan, Salvatore Cisternino
PURPOSE: Complications of the intrathecal route may cause potential toxicity related to the medical device and properties of the administered drug and/or excipient. A description of clinical and histological effects of polyethylene glycol and miripirium after Depo-Medrol injection, and the adverse reactions of particulate methylprednisolone acetate was conducted. The safety of the intrathecal route with excipients, label and off-label drugs is discussed. METHODS: A bibliographic search in Medline, Google, and Cochrane database from 1940 to June 2016 was performed...
November 18, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29148023/fluid-structure-interaction-model-analysis-of-cerebrospinal-fluid-circulation-in-patients-with-continuous-flow-left-ventricular-assist-devices
#2
Jessica G Y Luc, Clifford A Pierre, Kevin Phan, Yashar S Vahedein, Alexander S Liberson, William K Cornwell, Steven J Phillips, Vakhtang Tchantchaleishvili
PURPOSE: The current 1-dimensional fluid structure interaction model (FSI) for understanding cerebrospinal fluid (CSF) circulation requires pulsatility as a precondition and has not been applied to patients with continuous-flow left ventricular assist devices (CF-LVAD) where pulsatility is chronically reduced. Our study aims to characterize the behavior of CSF pressure and flow in patients with CF-LVADs using a computational FSI model. METHODS: Utilizing the computational FSI model, CSF production in choroid plexuses of the 4 ventricles was specified as a boundary condition for the model...
November 16, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29131236/chronic-subdural-hematoma-associated-with-arachnoid-cyst-of-the-middle-fossa-surgical-treatment-and-mid-term-results-in-fifteen-patients
#3
Ahmet Murat Müslüman, Barış Özöner, Atilla Kirçelli, Songül Meltem Can, Adem Yilmaz, Ayça Kaldirimoğlu, Balkan Şahin
AIM: We report the neurological and radiological features, surgical management and Mid-term outcome in a series of patients with chronic subdural hematoma (CSDH) and associated ipsilateral arachnoid cyst (AC) of the middle fossa. MATERIAL AND METHODS: Between August 2004 and August 2012, 453 patients were treated with diagnosis of CSDH in our clinic. Of those, 15 patients had ipsilateral arachnoid cyst in the middle fossa. A single burr hole craniostomy was performed to drain the hematoma and the AC left intact at first in 14 patients, one patient had no surgical intervention...
October 18, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29127332/outflow-of-cerebrospinal-fluid-is-predominantly-through-lymphatic-vessels-and-is-reduced-in-aged-mice
#4
Qiaoli Ma, Benjamin V Ineichen, Michael Detmar, Steven T Proulx
Cerebrospinal fluid (CSF) has been commonly accepted to drain through arachnoid projections from the subarachnoid space to the dural venous sinuses. However, a lymphatic component to CSF outflow has long been known. Here, we utilize lymphatic-reporter mice and high-resolution stereomicroscopy to characterize the anatomical routes and dynamics of outflow of CSF. After infusion into a lateral ventricle, tracers spread into the paravascular spaces of the pia mater and cortex of the brain. Tracers also rapidly reach lymph nodes using perineural routes through foramina in the skull...
November 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/29120154/predisposing-factors-responsible-for-the-occurrence-of-bacterial-purulent-meningoencephalitis
#5
Brankica Dupanović, Olgica Gajović, Dragica Terzić, Bogdanka Andrić, Zoran Todorović, Branko Jakovljević, Danko Živković
Bacterial purulent meningoencephalitis (BPME) is a life-threatening infectious disease caused by various pyogenic bacteria. The disease is defined as the inflammatory process of leptomeninges (visceral layer, pia mater and arachnoid membrane) and brain parenchyma with exudates in the subarachnoid space and surrounding brain structures. The aim of the study was to define the predisposing factors responsible for the occurrence of BPME, as well as the possible correlation between the presence of predisposing factors and patient demographic characteristics, etiology and outcome of the disease...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29117875/intradural-hematoma-and-arachnoid-cyst-following-lumbar-spinal-surgery-a-case-report
#6
Michael S Taccone, Patrick G Theriault, Darren M Roffey, Mohamed AlShumrani, Fahad Alkherayf, Eugene K Wai
No abstract text is available yet for this article.
November 9, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29117659/combined-treatment-of-ruptured-middle-cerebral-artery-aneurysm-followed-by-subarachnoid-hemorrhage-and-acute-subdural-hematoma-in-multiple-aneurysm-disease-of-cerebral-blood-vessels-case-report
#7
Nenad Novaković, Milan Lepić, Ljubodrag Minić, Ksenija Radenović, Ante Rotim, Lukas Amin
Aneurysms of blood vessels at the base of the brain are pathological focal out-pouchings, usually found at the branching points of the arteries. Aneurysm can remain silent for life. Clinical presentation is due to rupture and bleeding. In only 1.3% of cases it results in subdural hematoma, which is associated with direct interaction of the aneurysm with the basal arachnoid membrane. Multiple aneurysms are present in 15% to 33% of cases with subarachnoid hemorrhage. Assessment of these patients is more complicated, as there are no specific signs to pinpoint/detect the aneurysm that has ruptured...
December 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29114289/conus-medullaris-arachnoid-cyst-presenting-as-cauda-equina-syndrome
#8
Salman Sharif, Afifa Afsar, Mohsin Qadeer
Intradural arachnoid cysts are a rare cause of spinal cord and nerve root compression. Primarily, they are present in the thoracic region posteriorly. We report a 25-year-old man who had an intradural arachnoid cyst at the level of conus medullaris presenting with cauda equina syndrome, which is very rare.
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29111781/cognitive-disorders-in-a-patient-with-an-arachnoid-cyst-of-the-sylvian-fissure-and-improvement-after-surgical-treatment-case-description
#9
Karolina Kwiatkowska, Agata Hałabuda, Justyna Rybus, Stanisław Kwiatkowski
Arachnoid cysts cause a wide spectrum of clinical symptoms. Often it is difficult to clearly establish the relation between the presence of an arachnoid cyst and problems reported by the patient, which may, although not necessarily, be due to chronically elevated intracranial pressure. In recent years, increasing attention is paid to cognitive disorders accompanying arachnoid cysts, such as memory disorders, attention disorders, or language function disorders. This article presents a case of an 11-year-old patient, treated at the University Children's Hospital in Cracow for an arachnoid cyst, located in the left middle cranial fossa...
November 7, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/29107168/risk-of-recurrence-in-operated-parasagittal-meningiomas-a-logistic-binary-regression-model
#10
Escribano Mesa José Alberto, Alonso Morillejos Enrique, Parrón Carreño Tesifón, Huete Allut Antonio, Narro Donate José María, Méndez Román Paddy, Contreras Jiménez Ascensión, Pedrero García Francisco, Masegosa González José
BACKGROUND: Parasagittal meningiomas arise from the arachnoid cells of the angle formed between the Superior Sagittal Sinus (SSS) and the brain convexity. In this retrospective study we have focused on factors that predict early recurrence and recurrence times. METHODS: We reviewed 125 parasagittal meningiomas operated from 1985 to 2014. We studied the following variables: age, sex, location, laterality, histology, surgeons, invasion of the SSS, Simpson removal grade, follow-up time, angiography, embolization, radiotherapy, recurrence and recurrence time, reoperation, neurological deficit, degree of dependency, Patient Status at the end of follow-up...
October 26, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29102753/presacral-tarlov-cyst-as-an-unusual-cause-of-abdominal-pain-new-cases-and-literature-review
#11
REVIEW
Baichuan Wang, Feifei Pu, Qiang Wu, Zhicai Zhang, Zengwu Shao
BACKGROUND: The etiology of abdominal pain is sometimes difficult to be defined. A presacral Tarlov cyst is an unusual cause of abdominal pain. The unusual location of a presacral Tarlov cyst can lead to misdiagnosis and inappropriate treatment. To guide the appropriate diagnosis and treatment, we review the cause, clinical presentations, radiological features and management options of this extremely rare lesion. METHODS: We performed an English-language literature search using Pubmed and internet searching to identify reports of patients with presacral Tarlov cysts...
November 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29101072/spontaneously-resolving-symptomatic-subdural-hygromas-after-cerebellopontine-angle-tumor-surgery
#12
Etienne Lefevre, Anne Sophie Montero, Daniele Bernardeschi, Michel Kalamarides
BACKGROUND: Subdural hygroma is a rare pathology most commonly encountered in post-traumatic patients. Even more rarely, it has been described as a complication of cerebellopontine angle tumor requiring surgical evacuation. CASE DESCRIPTION: This report discusses two patients who underwent surgery for cerebellopontine angle tumor and who both developed symptomatic subdural hygromas a few days later. Both became highly symptomatic but symptoms resolved spontaneously and promptly before planned surgery...
October 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29093791/postoperative-spinal-subdural-lesions-following-lumbar-spine-surgery-prevalence-and-risk-factors
#13
Yukitaka Nagamoto, Shota Takenaka, Hiroyuki Aono
Study Design: Retrospective case-control study. Purpose: To clarify the prevalence and risk factors for spinal subdural lesions (SSDLs) following lumbar spine surgery. Overview of Literature: Because SSDLs, including arachnoid cyst and subdural hematoma, that develop following spinal surgery are seldom symptomatic and require reoperation, there are few reports on these pathologies. No study has addressed the prevalence and risk factors for SSDLs following lumbar spine surgery...
October 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29092643/arachnoiditis-ossificans-associated-with-syringomyelia-a-case-report
#14
Changbing Wang, Zhong Chen, Deyong Song, Tianhang Xuan
The association of arachnoiditis ossificans with syringomyelia is a rare pathological entity. We present an unusual case who presented with progressive myelopathy caused by arachnoidits ossificans and syringomyelia. The pathophysiology and treatment strategy of this rare entity are still controversial.
November 2, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29091255/spontaneous-intracystic-haemorrhage-of-an-arachnoid-cyst-associated-with-a-subacute-subdural-hematoma-a-case-report-and-literature-review
#15
Evren Aydogmus, Tufan Hicdonmez
Arachnoid cysts (ACs) are congenital malformations that may develop anywhere in the subarachnoid space along the cerebrospinal axis but are mostly observed in the temporal fossa and Sylvian fissure, predominantly in the left side. ACs account for 1% of all intracranial space-occupying lesions. ACs are a potential risk factor for subdural haematoma in all age groups following a traumatic head injury. Although an intracystic haemorrhage of AC without evidence of a head trauma is very rare, it may particularly develop in children and young adults who spend much more time engaged in games and forced physical exercise...
September 20, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29091065/the-3d-characteristics-of-post-traumatic-syringomyelia-in-a-rat-model-a-propagation-based-synchrotron-radiation-microtomography-study
#16
Shenghui Liao, Shuangfei Ni, Yong Cao, Xianzhen Yin, Tianding Wu, Hongbin Lu, Jianzhong Hu, Hao Wu, Ye Lang
Many published literature sources have described the histopathological characteristics of post-traumatic syringomyelia (PTS). However, three-dimensional (3D) visualization studies of PTS have been limited due to the lack of reliable 3D imaging techniques. In this study, the imaging efficiency of propagation-based synchrotron radiation microtomography (PB-SRµCT) was determined to detect the 3D morphology of the cavity and surrounding microvasculature network in a rat model of PTS. The rat model of PTS was established using the infinite horizon impactor to produce spinal cord injury (SCI), followed by a subarachnoid injection of kaolin to produce arachnoiditis...
November 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/29077773/open-housing-drives-the-expression-of-immune-response-genes-in-the-nasal-mucosa-but-not-the-olfactory-bulb
#17
Carolin Piotrowski, Vera Lede, Anne Butthof, Nicole Kaiser, Petra G Hirrlinger, Matthias H Tschöp, Torsten Schöneberg, Ingo Bechmann
Nasal mucosa and olfactory bulb are separated by the cribriform plate which is perforated by olfactory nerves. We have previously demonstrated that the cribriform plate is permissive for T cells and monocytes and that viruses can enter the bulb upon intranasal injection by axonal transportation. Therefore, we hypothesized that nasal mucosa and olfactory bulb are equipped to deal with constant infectious threats. To detect genes involved in this process, we compared gene expression in nasal mucosa and bulb of mice kept under specific pathogen free (SPF) conditions to gene expression of mice kept on non-SPF conditions using RNA deep sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/29075903/the-tethered-effect-of-the-arachnoid-in-vago-glossopharyngeal-neuralgia-a-real-associated-alternative-mechanism
#18
Florian Bernard, Philippe Mercier, Marc Sindou
Vago-glossopharyngeal neuralgia (VGPN) is a rarely seen disease when compared to trigeminal neuralgia. When the pain is resistant to medical therapy, microvascular decompression can be performed if a vascular conflict is suspected on magnetic resonance imaging (MRI). In addition, arachnoid pathology may play a role in VGPN. We report two cases of VGPN caused by tethered arachnoid, associated with a vascular contact in which pain was reduced by freeing rootlets from arachnoid compression. We report two cases relating to 50-year-old and 30-year-old men with a history of electric shooting pain triggered by swallowing in the right pharyngeal and auricular regions...
October 26, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29066098/brown-s%C3%A3-quard-syndrome-and-cervical-post-traumatic-subarachnoid-hematoma
#19
Fernando Rascón-Ramírez, Josué M Avecillas-Chasín, Albert Trondin, M Javier Arredondo
Cervical Traumatic SSH are very rare in literature. They are usually caused by cardiopulmonary diseases that increase vascular pressure causing spinal vessels rupture. In thoracolumbar spine, the spinal puncture is the most common cause. The ventrolateral position is even more unusual. In traumatic brain injury (TBI), an abrupt extension-flexion movement could have caused the rupture of subarachnoid vessels. This, accompanied by the slowed blood "wash out" (probably due to the previous osteoarthrosis and spinal canal stenosis), led to the formation of an organized clot, which caused an acute spinal cord compression syndrome...
October 20, 2017: Neurocirugía
https://www.readbyqxmd.com/read/29061456/multi-layered-dura-reconstruction-after-thoracoscopic-microdiscectomy-technique-and-results
#20
Erwin M J Cornips
BACKGROUND: Anterior transthoracic approaches including thoracoscopic microdiscectomy (TMD) are the preferred technique for central, broad-based, calcified thoracic disc herniations (TDHs). Dural defects due to manipulation or transdural extension may create a potentially life-threatening subarachnoid-pleural fistula. We evaluate a fast, sutureless technique to reconstruct the dura. METHODS: We analyzed 476 anterior transthoracic approaches for TDHs (437 TMDs, 31 mini-thoracotomies, 7 transaxillary approaches, one sternotomy)...
October 20, 2017: World Neurosurgery
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