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https://www.readbyqxmd.com/read/28526487/ultrasound-guided-thoracic-paravertebral-injection-in-dogs-a-cadaveric-study
#1
Diego A Portela, Luis Campoy, Pablo E Otero, Manuel Martin-Flores, Robin D Gleed
OBJECTIVE: To describe ultrasound-visualized anatomy and the spread characteristics of a dye injected in the thoracic paravertebral (TPV) space under ultrasound guidance. STUDY DESIGN: Anatomic cadaver study. ANIMALS: Seven dog cadavers. METHODS: One cadaver was used to observe, identify, and describe the relevant TPV anatomy. In the remaining six, the left fifth TPV space was randomly assigned to be injected with either a low volume (LV; 0...
February 16, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28526267/neurological-heterotopic-ossification-current-understanding-and-future-directions
#2
Rhys D Brady, Sandy R Shultz, Stuart J McDonald, Terence J O'Brien
Neurological heterotopic ossification (NHO) involves the formation of bone in soft tissue following a neurological condition, of which the most common are brain and spinal cord injuries. NHO often forms around the hip, knee and shoulder joints, causing severe pain and joint deformation which is associated with significant morbidity and reduced quality of life. The cellular and molecular events that initiate NHO have been the focus of an increasing number of human and animal studies over the past decade, with this work largely driven by the need to unearth potential therapeutic interventions to prevent the formation of NHO...
May 16, 2017: Bone
https://www.readbyqxmd.com/read/28526192/comparison-of-spinal-stereotactic-body-radiotherapy-sbrt-planning-techniques-intensity-modulated-radiation-therapy-modulated-arc-therapy-and-helical-tomotherapy
#3
Jina Kim, Hong Seok Jang, Yeon Sil Kim, Byung Ock Choi, Young-Nam Kang
Stereotactic body radiotherapy (SBRT) delivers a highly conformal, hypofractionated radiation dose to a small target with minimal radiation applied to the surrounding areas. Therefore, using the proper treatment planning techniques for SBRT is important. Intensity modulation techniques, such as static intensity-modulated radiation therapy (IMRT), modulated arc therapy (mARC), and helical tomotherapy (HT), are useful for spinal SBRT because of a rapid dose fall-off and spinal cord avoidance. This study compared the planning characteristics for hypofractionated spinal SBRT administered using 3 treatment techniques...
May 16, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28524788/state-of-global-pediatric-neurosurgery-outreach-survey-by-the-international-education-subcommittee
#4
Matthew C Davis, Brandon G Rocque, Ash Singhal, Thomas Ridder, Jogi V Pattisapu, James M Johnston
OBJECTIVE Neurosurgical services are increasingly recognized as essential components of surgical care worldwide. The degree of interest among neurosurgeons regarding international work, and the barriers to involvement in global neurosurgical outreach, are largely unexplored. The authors distributed a survey to members of the American Association of Neurological Surgeons/Congress of Neurological Surgeons (AANS/CNS) Joint Section on Pediatric Neurosurgery to assess the state of global outreach among its members and to identify barriers to involvement...
May 19, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28523383/anterior-sacral-meningocele-presenting-as-intracystic-bleeding
#5
Ignacio Javier Gilete-Tejero, Marta Ortega-Martínez, Jacinto Mata-Gómez, María Rico-Cotelo, Luis Miguel Bernal-García, Beatriz Yerga-Lorenzana, Ignacio Casado-Naranjo
PURPOSE: To report a case of anterior sacral meningocele with intralesional bleeding secondary to sacrococcygeal trauma. Likewise, there is a discussion about the physiopathology and the surgical approach to these types of lesions. METHODS: A 43-year-old man diagnosed with Marfan syndrome suffered sacrococcygeal trauma. He was admitted to the emergency room due to symptoms of headache, nausea, and lower limb subjective weakness. CT and MRI showed a large retroperitoneal mass with hemorrhagic content close to the sacrum...
May 18, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28520819/in-vitro-analysis-of-the-segmental-flexibility-of-the-thoracic-spine
#6
Hans-Joachim Wilke, Andrea Herkommer, Karin Werner, Christian Liebsch
Basic knowledge about the thoracic spinal flexibility is limited and to the authors' knowledge, no in vitro studies have examined the flexibility of every thoracic spinal segment under standardized experimental conditions using pure moments. In our in vitro study, 68 human thoracic functional spinal units including the costovertebral joints (at least n = 6 functional spinal units per segment from T1-T2 to T11-T12) were loaded with pure moments of ±7.5 Nm in flexion/extension, lateral bending, and axial rotation in a custom-built spine tester to analyze range of motion (ROM) and neutral zone (NZ)...
2017: PloS One
https://www.readbyqxmd.com/read/28520505/early-blockade-of-matrix-metalloproteinases-in-spinal-cord-injured-dogs-results-in-a-long-term-increase-in-bladder-compliance
#7
Jonathan Michael Levine, Noah D Cohen, Thomas Fandel, Gwendolyn Joan Levine, Joseph M Mankin, John F Griffin, Sharon C Kerwin, C Elizabeth Boudreau, Alpa Trivedi, Linda Noble-Haeusslein
Spinal cord injury (SCI) is often accompanied by reduced bladder compliance, which contributes to adverse conditions including urinary tract infections and vesicoureteral reflux. Reduced compliance is, in part, attributed to extensive remodeling of the bladder wall including the extracellular matrix (ECM). Here we tested the hypothesis that blockade of matrix metalloproteinases (MMPs), known for their ability to remodel the ECM, improves bladder compliance in dogs with SCI. We first evaluated dogs with naturally occurring SCIs resulting from intervertebral disc herniation (IVDH)...
May 18, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28517492/practical-considerations-of-linear-accelerator-based-frameless-extracranial-radiosurgery-for-treatment-of-occipital-neuralgia-for-nonsurgical-candidates
#8
Travis R Denton, Lisa B E Shields, Jonathan N Howe, Todd S Shanks, Aaron C Spalding
Occipital neuralgia generally responds to medical or invasive procedures. Repeated invasive procedures generate increasing complications and are often contraindicated. Stereotactic radiosurgery (SRS) has not been reported as a treatment option largely due to the extracranial nature of the target as opposed to the similar, more established trigeminal neuralgia. A dedicated phantom study was conducted to determine the optimum imaging studies, fusion matrices, and treatment planning parameters to target the C2 dorsal root ganglion which forms the occipital nerve...
May 18, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28516217/prenatal-surgery-for-myelomeningocele-review-of-the-literature-and-future-directions
#9
Gregory G Heuer, Julie S Moldenhauer, N Scott Adzick
Open spina bifida or myelomeningocele (MMC) is one of the most common serious congenital malformations. Historically, this condition has been treated with closure of the MMC defect shortly after birth. The goal of postnatal closure is to cover the exposed spinal cord and prevent infection. However, postnatal surgery does not reverse or prevent the neurologic injury seen in MMC, reverse hindbrain herniation, or prevent hydrocephalus. The neurologic defects result from primary incomplete neurulation and secondary chronic prenatal damage to the exposed neural elements through mechanical and chemical trauma...
May 17, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28512742/differing-intrinsic-biological-properties-between-forebrain-and-spinal-oligodendroglial-lineage-cells
#10
Makoto Horiuchi, Yoko Suzuki-Horiuchi, Tasuku Akiyama, Aki Itoh, David Pleasure, Earl Carstens, Takayuki Itoh
Differentiation of oligodendroglial progenitor cells (OPCs) into myelinating oligodendrocytes is known to be regulated by the microenvironment where they differentiate. However, current research has not verified whether or not oligodendroglial lineage cells (OLCs) derived from different anatomical regions of the central nervous system (CNS) respond to microenvironmental cues in the same manner. Here, we isolated pure OPCs from rat neonatal forebrain (FB) and spinal cord (SC) and compared their phenotypes in the same in vitro conditions...
May 17, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28512616/surgical-management-of-syringomyelia-associated-with-spinal-adhesive-arachnoiditis-a-late-complication-of-tuberculous-meningitis-a-case-report
#11
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/28510605/the-role-of-attention-in-human-motor-resonance
#12
Guglielmo Puglisi, Antonella Leonetti, Ayelet Landau, Luca Fornia, Gabriella Cerri, Paola Borroni
Observation of others' actions evokes in primary motor cortex and spinal circuits of observers a subliminal motor resonance response, which reflects the motor program encoding observed actions. We investigated the role of attention in human motor resonance with four experimental conditions, explored in different subject groups: in the first explicit condition, subjects were asked to observe a rhythmic hand flexion-extension movement performed live in front of them. In two other conditions subjects had to monitor the activity of a LED light mounted on the oscillating hand...
2017: PloS One
https://www.readbyqxmd.com/read/28509312/histological-immunohistochemical-and-ultrastructural-study-of-secondary-compressed-spinal-cord-injury-in-a-rat-model
#13
Wafaa S Ramadan, Ghada A Abdel-Hamid, Saleh Al-Karim, Aymn T Abbas
INTRODUCTION: Spinal cord injury (SCI) is a life-disrupting condition in which the first few days are the most critical. Secondary conditions remain the main causes of death for people with SCI. The response of different cell types to SCI and their role at different times in the progression of secondary degeneration are not well understood. The aim of this study was to study the histopathological changes of compressed spinal cord injury (CSCI) in a rat model. MATERIAL AND METHODS: Forty adult male Sprague-Dawley rats were divided into four groups...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28508364/a-novel-2-de-based-proteomic-analysis-to-identify-multiple-substrates-for-specific-protease-in-neuronal-cells
#14
Chiho Kim, Young J Oh
Proteolysis is a process where proteins are broken down into smaller polypeptides or amino acids, comprising one of the important posttranslational modifications of proteins. Since this process is exquisitely achieved by specialized enzymes called proteases under physiological conditions, abnormal protease activity and dysregulation of their substrate proteins are closely associated with a progression of several neurodegenerative diseases including Alzheimer disease, Parkinson disease, stroke, and spinal cord injury...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28508172/targeting-enolase-in-reducing-secondary-damage-in-acute-spinal-cord-injury-in-rats
#15
Azizul Haque, Mollie Capone, Denise Matzelle, April Cox, Naren L Banik
Spinal cord injury (SCI) is a complex debilitating condition leading to permanent life-long neurological deficits. The complexity of SCI suggests that a concerted multi-targeted therapeutic approach is warranted to optimally improve function. Damage to spinal cord is complicated by an increased detrimental response from secondary injury factors mediated by activated glial cells and infiltrating macrophages. While elevation of enolase especially neuron specific enolase (NSE) in glial and neuronal cells is believed to trigger inflammatory cascades in acute SCI, alteration of NSE and its subsequent effects in acute SCI remains unknown...
May 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28507514/markovian-analysis-of-the-sequential-behavior-of-the-spontaneous-spinal-cord-dorsum-potentials-induced-by-acute-nociceptive-stimulation-in-the-anesthetized-cat
#16
Mario Martin, Javier Béjar, Gennaro Esposito, Diógenes Chávez, Enrique Contreras-Hernández, Silvio Glusman, Ulises Cortés, Pablo Rudomín
In a previous study we developed a Machine Learning procedure for the automatic identification and classification of spontaneous cord dorsum potentials (CDPs). This study further supported the proposal that in the anesthetized cat, the spontaneous CDPs recorded from different lumbar spinal segments are generated by a distributed network of dorsal horn neurons with structured (non-random) patterns of functional connectivity and that these configurations can be changed to other non-random and stable configurations after the noceptive stimulation produced by the intradermic injection of capsaicin in the anesthetized cat...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/28506502/autonomic-dysreflexia-after-spinal-cord-injury-systemic-pathophysiology-and-methods-of-management
#17
Khalid C Eldahan, Alexander G Rabchevsky
Traumatic spinal cord injury (SCI) has widespread physiological effects beyond the disruption of sensory and motor function, notably the loss of normal autonomic and cardiovascular control. Injury at or above the sixth thoracic spinal cord segment segregates critical spinal sympathetic neurons from supraspinal modulation which can result in a syndrome known as autonomic dysreflexia (AD). AD is defined as episodic hypertension and concomitant baroreflex-mediated bradycardia initiated by unmodulated sympathetic reflexes in the decentralized cord...
May 8, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28506404/-dural-sinus-thrombosis-following-epidural-analgesia-for-delivery-a-clinical-case
#18
Marco Aurelio Dornelles, Luis M Pereira
BACKGROUND AND OBJECTIVES: Neurological complications of spinal anesthesia are rare conditions. Headache caused by low pressure of the cerebrospinal fluid is one of the most frequent, which occurs after post-dural puncture. A comprehensive history and physical exam must be carried out before making the diagnosis of Post-Dural Puncture Headache (PDPH) and additional tests are necessary to exclude the possibility of developing serious neurological complications such as Dural Sinus Thrombosis (DST)...
May 12, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28506006/immediate-responses-to-backpack-carriage-on-postural-angles-in-young-adults-a-crossover-randomized-self-controlled-study-with-repeated-measures
#19
Ukachukwu O Abaraogu, Elochukwu F Ezenwankwo, Ijeoma B Nwadilibe, Geoffrey C Nwafor, Bianca O Ugwuele, Pascal C Uzoh, Ifunanya Ani, Kinsley Amarachineke, Collins Atuma, Obed Ewelunta
BACKGROUND: Heavy backpacks have been associated with various postural changes and consequently musculoskeletal disorders. OBJECTIVE: We evaluated the immediate responses of varying backpack loads on cranio-vertebral angle (CVA), sagittal shoulder angle (SSA) and trunk forward lean (TFL) of young adults between the ages of 18-25 years. METHODS: This was a 3×3 cross over randomized controlled study with repeated measures among a convenience sample of young adults (n = 30; 50% male, 50% female)...
May 6, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28505594/the-rheological-behavior-of-a-fast-setting-calcium-phosphate-bone-cement-and-its-dependence-on-deformation-conditions
#20
Erdem Şahin, Dilhan M Kalyon
Calcium phosphate cements are osteoconductive biomaterials that are widely used for bone repair and regeneration applications, including spinal fusion, vertebroplasty, khyphoplasty, cranioplasty and periodontal surgeries. The flow and deformation behavior (rheology) and injectability of the calcium phosphate bone cements to the treatment site are governed by the setting kinetics of the cement during which the initially flowable, viscous cement paste transforms into a rigid elastic solid. Here time-dependent development of the linear viscoelastic properties of a brushite-forming calcium phosphate cement are characterized and linked to the mechanism and kinetics of the setting reaction and to the injectability window available during the surgical applications of the cement...
May 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
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