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Thoracic spinal cord injury

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https://www.readbyqxmd.com/read/28803852/dynamic-feet-distance-a-new-functional-assessment-during-treadmill-locomotion-in-normal-and-thoracic-spinal-cord-injured-rats
#1
Camila Cardoso Diogo, Luís Maltez da Costa, José Eduardo Pereira, Vítor Filipe, Pedro Alexandre Couto, Luís G Magalhães, Stefano Geuna, Paulo A Armada-da-Silva, Ana Colette Maurício, Artur Severo Varejão
Of all the detrimental effects of spinal cord injury (SCI), one of the most devastating is the disruption of the ability to perform functional movement. Very little is known on the recovery of hindlimb joint kinematics after clinically-relevant contusive thoracic lesion in experimental animal models. A new functional assessment instrument, the dynamic feet distance (DFD) was used to describe the distance between the two feet throughout the gait cycle in normal and affected rodents. The purpose of this investigation was the evaluation and characterization of the DFD during treadmill locomotion in normal and T9 contusion injured rats, using three-dimensional (3D) instrumented gait analysis...
August 10, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28798719/fulminant-acute-ascending-hemorrhagic-myelitis-treated-with-eculizumab
#2
Nang Boe Ohnmar Hsam, Klemens Angstwurm, Sebastian Peters, Kornelius Fuchs, Gerhard Schuierer, Ulrich Bogdahn, Robert Weissert
We describe an 18-year-old patient who developed back pain, rapidly ascending sensomotory deficits, bladder dysfunction, Lhermitte's sign, absent abdominal reflexes of all three levels, brisk tendon reflexes, and positive Babinski's sign. Magnetic resonance imaging of the spinal cord showed a long segment of cervical and thoracic intramedullary signal hyperintensity suggesting a longitudinally extensive transverse myelitis possibly within the course of a fast progressing ascending immune-mediated hemorrhagic myelopathy...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28797584/long-term-outcomes-of-frozen-elephant-trunk-for-type-a-aortic-dissection-in-patients-with-marfan-syndrome
#3
Wei-Guo Ma, Wei Zhang, Jun-Ming Zhu, Bulat A Ziganshin, Ai-Hua Zhi, Jun Zheng, Yong-Min Liu, John A Elefteriades, Li-Zhong Sun
OBJECTIVE: The use of the frozen elephant trunk (FET) technique for repair of type A aortic dissection (TAAD) in Marfan syndrome (MFS) is controversial. We seek to evaluate the efficacy of FET and total arch replacement (TAR) for TAAD in patients with MFS. METHODS: The early and long-term outcomes were analyzed for 106 patients with MFS (mean age, 34.5 ± 9.7 years) undergoing FET + TAR for TAAD. RESULTS: Operative mortality was 6.6% (7 of 106)...
June 16, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28795657/body-system-effects-of-a-multi-modal-training-program-targeting-chronic-motor-complete-thoracic-spinal-cord-injury
#4
Katie Gant, Kathleen Nagle, Rachel Cowan, Edelle Field-Fote, Mark Nash, Jochen Kressler, Christine K Thomas, Mabelin Castellanos, Eva Widerstrom-Noga, Kimberly D Anderson
The safety and efficacy of pharmacologic and cellular transplantation strategies are currently being evaluated in people with spinal cord injury. In studies of people with chronic spinal cord injuries, it is thought that functional recovery will be best achieved when drug or cell therapies are combined with rehabilitation protocols. However, any functional recovery due to the therapy may be confounded by the conditioned state of the body and by training-induced effects on neuroplasticity. For this reason, we sought to investigate the effects of a multi-modal training program on several body systems...
August 10, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28782691/first-case-of-autonomic-dysrefleixa-following-elective-lower-thoracic-spinal-cord-transection-in-a-spina-bifida-adult
#5
Juanita Garces, Mansour Mathkour, Tyler Scullen, Lora Kahn, Erin Biro, Olawale A R Sulaiman, Roger Smith, Cuong J Bui
BACKGROUND: Spinal cord transection is a radical but effective treatment for highly selective cases of symptomatic spinal re-tethering in paraplegic spina bifida patients. Autonomic dysreflexia (AD) is a potentially life-threatening syndrome involving a dysregulated sympathetic discharge reflex commonly seen following cervical and high thoracic spinal cord injury leading to a disconnect between autonomic pathways above and below the lesion that can lead to severe complications including uncontrolled hypertension, bradycardia, stroke, and potentially death...
August 3, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28781176/electrical-neuromodulation-of-the-respiratory-system-after-spinal-cord-injury
#6
REVIEW
Jan T Hachmann, Peter J Grahn, Jonathan S Calvert, Dina I Drubach, Kendall H Lee, Igor A Lavrov
Spinal cord injury (SCI) is a complex and devastating condition characterized by disruption of descending, ascending, and intrinsic spinal circuitry resulting in chronic neurologic deficits. In addition to limb and trunk sensorimotor deficits, SCI can impair autonomic neurocircuitry such as the motor networks that support respiration and cough. High cervical SCI can cause complete respiratory paralysis, and even lower cervical or thoracic lesions commonly result in partial respiratory impairment. Although electrophrenic respiration can restore ventilator-independent breathing in select candidates, only a small subset of affected individuals can benefit from this technology at this moment...
August 3, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28776131/pure-distraction-injury-of-t1-2-with-quad-fever
#7
Jun-Yeong Seo, Chae-Moon Lim, Young-Hoon Kim, Kee-Yong Ha
INTRODUCTION: We report a pure distraction injury of the upper thoracic spine and uncontrolled hyperthermia without an infectious cause. Quad fever appears in the first several weeks to months after a cervical or upper thoracic SCI and is characterized by an extreme elevation in body core temperature beyond 40 °C without an infectious cause. Discriminating between infectious and noninfectious causes is important, and a thorough clinical assessment is required. MATERIALS AND METHODS: A 52-year-old male visited the emergency room complaining of back pain with complete paralysis [American Spinal Injury Association (ASIA) A] of both lower extremities after a pedestrian-motor vehicle accident...
August 3, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28768086/relationship-between-clinical-and-radiologic-findings-of-spinal-cord-injury-in-decompression-sickness
#8
Jae Myun Chung, Jin Young Ahn
BACKGROUND: Decompression sickness may involve the central nervous system. The most common site is spinal cord. This study was conducted to determine the relationship between magnetic resonance(MR) imaging findings of spinal damage. METHODS: We conducted a retrospective review of 12 patients (male=10, female=2) who presented with spinal cord symptoms. We investigated their clinical features, neurological findings and radiologic findings. RESULTS: The depth and bottom time of the dive were 34...
January 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28763433/injury-and-liability-associated-with-spine-surgery
#9
Rachel Kutteruf, Deva Wells, Linda Stephens, Karen L Posner, Lorri A Lee, Karen B Domino
BACKGROUND: Although spine surgery is associated with significant morbidity, the anesthesia liability profile for spine surgery is not known. We examined claims for spine procedures in the Anesthesia Closed Claims Project database to evaluate patterns of injury and liability. MATERIALS AND METHODS: A retrospective cohort study was performed. Inclusion criteria were anesthesia claims provided for surgical procedures in 2000 to 2014. We compared mechanisms of injury for cervical spine to thoracic or lumbar spine procedures using χ and the Fisher exact test...
July 31, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28761432/effects-of-pulsed-radiofrequency-on-spasticity-in-patients-with-spinal-cord-injury-a-report-of-two-cases
#10
Min Cheol Chang, Yun Woo Cho
Spasticity following spinal cord injury (SCI) results in functional deterioration and reduced quality of life. Herein, we report two SCI patients who presented with good response to pulsed radiofrequency (PRF) for the management of spasticity in the lower extremities. Patient 1 (a 47-year-old man) had complete thoracic cord injury and showed a phasic spasticity on the extensor of both knees (3-4 beats clonus per every 30 seconds) and tonic spasticity (Modified Ashworth Scale: 3) on both hip adductors. Patient 2 (a 64-year-old man) had incomplete cervical cord injury and showed a right ankle clonus (approximately 20 beats) when he walked...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28761430/mechanisms-underlying-the-promotion-of-functional-recovery-by-deferoxamine-after-spinal-cord-injury-in-rats
#11
Jian Hao, Bo Li, Hui-Quan Duan, Chen-Xi Zhao, Yan Zhang, Chao Sun, Bin Pan, Chang Liu, Xiao-Hong Kong, Xue Yao, Shi-Qing Feng
Deferoxamine, a clinically safe drug used for treating iron overload, also repairs spinal cord injury although the mechanism for this action remains unknown. Here, we determined whether deferoxamine was therapeutic in a rat model of spinal cord injury and explored potential mechanisms for this effect. Spinal cord injury was induced by impacting the spinal cord at the thoracic T10 vertebra level. One group of injured rats received deferoxamine, a second injured group received saline, and a third group was sham operated...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28760352/image-guided-percutaneous-intralesional-administration-of-mesenchymal-stromal-cells-in-subjects-with-chronic-complete-spinal-cord-injury-a-pilot-study
#12
Ticiana Ferreira Larocca, Carolina Thé Macêdo, Bruno Solano de Freitas Souza, Yuri M Andrade-Souza, Cristiane Flora Villarreal, André Costa Matos, Daniela Nascimento Silva, Kátia Nunes da Silva, Clarissa Lima E Moura de Souza, Daniela da Silva Paixão, Milena da Rocha Bezerra, Rodrigo Leal Alves, Milena Botelho Pereira Soares, Ricardo Ribeiro Dos Santos
BACKGROUND AIMS: The potential of cell therapies to improve neurological function in subjects with spinal cord injury (SCI) is currently under investigation. In this context, the choice of cell type, dose, route and administration regimen are key factors. Mesenchymal stromal cells (MSCs) can be easily obtained, expanded and are suitable for autologous transplantation. Here we conducted a pilot study that evaluated safety, feasibility and potential efficacy of intralesional MSCs transplantation performed through image-guided percutaneous injection, in subjects with chronic complete SCI...
July 28, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28757523/operative-techniques-of-percutaneous-endoscopic-mini-hemilaminectomy-using-a-uniportal-approach-in-dogs
#13
Hee-Sup Moon, Yong-Hyun Hwang, Hee-Chun Lee, Jae-Hoon Lee
The present study aimed to investigate the technical feasibility of percutaneous endoscopic mini-hemilaminectomy via a uniportal approach, and to evaluate the possibility of decompression and endoscopic examination of the thoracic and lumbar spinal canals in small dogs during such procedures. Fresh canine cadavers of mixed-breed dogs (n=7) were used in this study. Following injection of a barium and agarose mixture (BA-gel) to stimulate intervertebral disc herniation, percutaneous endoscopic mini-hemilaminectomy was performed using a lateral approach to the thoracic and lumbar vertebrae...
July 31, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28751784/rapid-generation-of-opc-like-cells-from-human-pluripotent-stem-cells-for-treating-spinal-cord-injury
#14
Dae-Sung Kim, Se Jung Jung, Jae Souk Lee, Bo Young Lim, Hyun Ah Kim, Jeong-Eun Yoo, Dong-Wook Kim, Joong Woo Leem
Remyelination via the transplantation of oligodendrocyte precursor cells (OPCs) has been considered as a strategy to improve the locomotor deficits caused by traumatic spinal cord injury (SCI). To date, enormous efforts have been made to derive OPCs from human pluripotent stem cells (hPSCs), and significant progress in the transplantation of such cells in SCI animal models has been reported. The current methods generally require a long period of time (>2 months) to obtain transplantable OPCs, which hampers their clinical utility for patients with SCI...
July 28, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28744321/an-18-f-positron-emitting-fluorescent-cerebrospinal-fluid-probe-for-imaging-damage-to-the-brain-and-spine
#15
Harikrishna Kommidi, Hua Guo, Nandi Chen, Dohyun Kim, Bin He, Amy P Wu, Omer Aras, Richard Ting
Fluorescein is modified to bear (18)F so that it can act as both a positron emitter, and a fluorophore, allowing detection by positron emission tomography (PET), scintillation, and fluorescent imaging (FL). [(18)F]-2 is injected into the intrathecal space of rats and used to observe the cerebrospinal fluid (CSF) that bathes the brain and spine. Injury in three different applications is visualized with [(18)F]-2: 1) detection of a 0.7 mm paranasal-sinus CSF leak (CSFL); 2) detection of 0.5 mm puncture damage to the thoracic spine (acute spinal cord injury); and 3) detection of intracerebral hemorrhage/edema because of traumatic brain injury...
2017: Theranostics
https://www.readbyqxmd.com/read/28740858/s-100%C3%AE-and-antioxidant-capacity-in-cerebrospinal-fluid-during-and-after-thoracic-endovascular-aortic-repair
#16
Koichiro Nandate, Deepak Sharma, Hernando Olivar, Matthew Hallman, Ramesh Ramaiah, Aaron Joffe, Anthony Roche, Vijay Krishnamoorthy
BACKGROUND: Thoracic Endovascular Aortic Repair (TEVAR) has substantially decreased the mortality and major complications from aortic surgery. However, neurological complications such as spinal cord ischemia may still occur after TEVAR. S-100β is a biomarker of central nervous system injury, and oxidant injury plays an important role in neurological injury. In this pilot study, we examined the trends of S-100β and antioxidant capacity in the CSF during and after TEVAR. METHODS: We recruited 10 patients who underwent elective TEVAR...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28738537/phosphodiesterase-inhibitor-ameliorates-neuronal-injury-in-spinal-cord-ischemia-reperfusion-injured-rat-model
#17
Xiao-Gang Chen, Fu Hua, Shou-Guo Wang, Yong-Yi Xu, Hai-Tao Yue
This study investigated the mechanisms responsible for the neuroprotective effect of sildenafil citrate (SFC) on ischemia-reperfusion spinal cord (SC) injuries. Balloon occlusion of the thoracic aorta was used to induce SC ischemia. The animals (n=30) were separated into three groups: sham, SC injury with saline, and SC injury with 5mg/kg i.p. SFC treatment (SFC). The Basso, Beattie, and Bresnahan (BBB) score was determined to assess neurological function at different time intervals after reperfusion. After 48h, histopathology of the SC was assessed by triphenyltetrazolium chloride (TTC) and Nissl staining...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28736791/control-of-standing-balance-at-leaning-postures-with-functional-neuromuscular-stimulation-following-spinal-cord-injury
#18
Musa L Audu, Brooke M Odle, Ronald J Triolo
This study systematically explored the potential of applying feedback control of functional neuromuscular stimulation (FNS) for stabilizing various erect and leaning standing postures after spinal cord injury (SCI). Perturbations ranging from 2 to 6% body weight were applied to two subjects with motor complete thoracic level SCI who were proficient at standing with implanted multichannel neural stimulators to activate the ankle, knee, hip and trunk muscles. The subjects stood with four different postures: erect, forward, forward-right and forward-left...
July 24, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28734171/muscle-synergies-reveal-impaired-trunk-muscle-coordination-strategies-in-individuals-with-thoracic-spinal-cord-injury
#19
Matija Milosevic, Hikaru Yokoyama, Murielle Grangeon, Kei Masani, Milos R Popovic, Kimitaka Nakazawa, Dany H Gagnon
Spinal cord injury (SCI) can result in paralysis of trunk muscles, which can affect sitting balance. The objective of this study was to analyze trunk muscle coordination of individuals with thoracic SCI and compare it to able-body individuals. A total of 27 individuals were recruited and subdivided into: (a) high thoracic SCI; (b) low thoracic SCI; and (c) able-body groups. Participants were seated and asked to lean their trunk in eight directions while trunk muscle activity was recorded. Muscle coordination was assessed using the non-negative matrix factorization (NMF) method to extract muscle modules, which are the synergistic trunk muscle activations, and their directional activation patterns...
July 1, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28721206/a-bipedal-mammalian-model-for-spinal-cord-injury-research-the-tammar-wallaby
#20
Norman R Saunders, Katarzyna M Dziegielewska, Sophie C Whish, Lyn A Hinds, Benjamin J Wheaton, Yifan Huang, Steve Henry, Mark D Habgood
Background: Most animal studies of spinal cord injury are conducted in quadrupeds, usually rodents. It is unclear to what extent functional results from such studies can be translated to bipedal species such as humans because bipedal and quadrupedal locomotion involve very different patterns of spinal control of muscle coordination. Bipedalism requires upright trunk stability and coordinated postural muscle control; it has been suggested that peripheral sensory input is less important in humans than quadrupeds for recovery of locomotion following spinal injury...
2017: F1000Research
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