keyword
MENU ▼
Read by QxMD icon Read
search

Spinal cord implants

keyword
https://www.readbyqxmd.com/read/29244235/new-therapy-for-refractory-chronic-mechanical-low-back-pain-restorative-neurostimulation-to-activate-the-lumbar-multifidus-one-year-results-of-a-prospective-multicenter-clinical-trial
#1
REVIEW
Kristiaan Deckers, Kris De Smedt, Bruce Mitchell, David Vivian, Marc Russo, Peter Georgius, Matthew Green, John Vieceli, Sam Eldabe, Ashish Gulve, Jean-Pierre van Buyten, Iris Smet, Vivek Mehta, Shankar Ramaswamy, Ganesan Baranidharan, Richard Sullivan, Robert Gassin, James Rathmell, Chris Gilligan
OBJECTIVES: The purpose of the international multicenter prospective single arm clinical trial was to evaluate restorative neurostimulation eliciting episodic contraction of the lumbar multifidus for treatment of chronic mechanical low back pain (CMLBP) in patients who have failed conventional therapy and are not candidates for surgery or spinal cord stimulation (SCS). MATERIALS AND METHODS: Fifty-three subjects were implanted with a neurostimulator (ReActiv8, Mainstay Medical Limited, Dublin, Ireland)...
December 15, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29244102/association-of-opioid-usage-with-spinal-cord-stimulation-outcomes
#2
Ashwini D Sharan, Jonathan Riley, Steven Falowski, Jason E Pope, Allison T Connolly, Edward Karst, Nirav Dalal, David A Provenzano
Study Design: Observational study using insurance claims. Objective: To quantify opioid usage leading up to spinal cord stimulation (SCS) and the potential impact on outcomes of SCS. Setting: SCS is an interventional therapy that often follows opioid usage in the care continuum for chronic pain. Methods: This study identified SCS patients using the Truven Health MarketScan databases from January 2010 to December 2014...
December 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29230638/application-of-the-sodium-hyaluronate-cntf-scaffolds-in-repairing-adult-rat-spinal-cord-injury-and-facilitating-neural-network-formation
#3
Yabin Xie, Wei Song, Wen Zhao, Yudan Gao, Junkui Shang, Peng Hao, Zhaoyang Yang, Hongmei Duan, Xiaoguang Li
The present study aimed to explore the potential of the sodium hyaluronate-CNTF (ciliary neurotrophic factor) scaffold in activating endogenous neurogenesis and facilitating neural network re-formation after the adult rat spinal cord injury (SCI). After completely cutting and removing a 5-mm adult rat T8 segment, a sodium hyaluronate-CNTF scaffold was implanted into the lesion area. Dil tracing and immunofluorescence staining were used to observe the proliferation, differentiation and integration of neural stem cells (NSCs) after SCI...
December 6, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/29230560/non-functionalized-soft-alginate-hydrogel-promotes-locomotor-recovery-after-spinal-cord-injury-in-a-rat-hemimyelonectomy-model
#4
Kerim Hakan Sitoci-Ficici, Marina Matyash, Ortrud Uckermann, Roberta Galli, Elke Leipnitz, Robert Later, Chrysanthy Ikonomidou, Michael Gelinsky, Gabriele Schackert, Matthias Kirsch
BACKGROUND: Spinal cord injury (SCI) and the consecutive devastating neurological sequelae have an enormous individual and economic impact. Implantation of functionalized hydrogels is a promising approach, because they can serve as a matrix for the regenerating tissue, carry and release bioactive molecules and various cell types. We already demonstrated that non-functionalized soft alginate hydrogel supported axonal outgrowth and protected neurons against oxidative stress in vitro. Here, we investigated the effects of such soft alginate hydrogels on locomotor recovery in small and large spinal cord lesions...
December 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29220121/effects-of-rate-on-analgesia-in-kilohertz-frequency-spinal-cord-stimulation-results-of-the-proco-randomized-controlled-trial
#5
Simon J Thomson, Moein Tavakkolizadeh, Sarah Love-Jones, Nikunj K Patel, Jianwen Wendy Gu, Amarpreet Bains, Que Doan, Michael Moffitt
OBJECTIVE: The PROCO RCT is a multicenter, double-blind, crossover, randomized controlled trial (RCT) that investigated the effects of rate on analgesia in kilohertz frequency (1-10 kHz) spinal cord stimulation (SCS). MATERIALS AND METHODS: Patients were implanted with SCS systems and underwent an eight-week search to identify the best location ("sweet spot") of stimulation at 10 kHz within the searched region (T8-T11). An electronic diary (e-diary) prompted patients for pain scores three times per day...
December 8, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29205982/spasticity-or-periodic-limb-movements
#6
Jonathan Levy, Sarah Hartley, Elsa Mauruc-Soubirac, Antoine Leotard, Frederic Lofaso, Maria-Antonia Quera-Salva, Djamel Bensmail
BACKGROUND: Spasticity and spasms are distressing features of the upper motor neuron syndrome (UMNS) following spinal cord injuries (SCI) or multiple sclerosis (MS), and have common therapeutic implications. Despite an increase of antispastic drugs and strategies, sometimes up to the surgical implant of intrathecal baclofen pump, some patients still complain of disabling spasms, which poses diagnostic and therapeutic challenges. Although clinically similar, flexor spasms due to pyramidal tract disruption must be clearly differentiated from periodic limb movements (PLM), often accompanying restless leg syndrome (RLS) and occurring during sleep...
December 4, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29195690/completed-fda-feasibility-trial-of-surgically-placed-temporary-diaphragm-pacing-electrodes-a-promising-option-to-prevent-and-treat-respiratory-failure
#7
Raymond P Onders, Alan Markowitz, Vanessa P Ho, Jeff Hardacre, Yuri Novitsky, Christopher Towe, MaryJo Elmo, Cindy Kaplan, Robert Schilz
BACKGROUND: Etiologies contributing to failure to wean from mechanical ventilation (MV) are multiple, resulting in morbid and costly outcomes. Diaphragm pacing (DP) is used in spinal cord injury to replace MV. Temporary DP could be utilized in acute respiratory failure to reduce MV. METHODS: A prospective FDA feasibility trial evaluated temporary DP electrodes implanted in each hemi-diaphragm during a subject's primary procedure. Objectives included: ability to provide ventilation, stability analysis with diaphragm electromyography, and adverse event monitoring...
November 11, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/29187247/improvement-of-renal-function-after-human-umbilical-cord-mesenchymal-stem-cell-treatment-on-chronic-renal-failure-and-thoracic-spinal-cord-entrapment-a-case-report
#8
Ahmad Jabir Rahyussalim, Ifran Saleh, Tri Kurniawati, Andi Praja Wira Yudha Lutfi
BACKGROUND: Chronic renal failure is an important clinical problem with significant socioeconomic impact worldwide. Thoracic spinal cord entrapment induced by a metabolic yield deposit in patients with renal failure results in intrusion of nervous tissue and consequently loss of motor and sensory function. Human umbilical cord mesenchymal stem cells are immune naïve and they are able to differentiate into other phenotypes, including the neural lineage. Over the past decade, advances in the field of regenerative medicine allowed development of cell therapies suitable for kidney repair...
November 30, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29178358/conventional-scs-vs-burst-scs-and-the-behavioral-effect-on-mechanical-hypersensitivity-in-a-rat-model-of-chronic-neuropathic-pain-effect-of-amplitude
#9
Koen P V Meuwissen, Jianwen Wendy Gu, Tianhe C Zhang, Elbert A J Joosten
OBJECTIVE: Various spinal cord stimulation (SCS) modes are used in the treatment of chronic neuropathic pain disorders. Conventional (Con) and Burst-SCS are hypothesized to exert analgesic effects through different stimulation-induced mechanisms. Preclinical electrophysiological findings suggest that stimulation intensity is correlated with the effectiveness of Burst-SCS. Therefore, we aimed to investigate the relation between amplitude (charge per second) and behavioral effects in a rat model of chronic neuropathic pain, for both Conventional Spinal Cord Stimulation (Con-SCS) and biphasic Burst-SCS...
November 27, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29174588/trimethylene-carbonate-caprolactone-conduit-with-poly-p-dioxanone-microfilaments-to-promote-regeneration-after-spinal-cord-injury
#10
Liudmila N Novikova, Mallappa K Kolar, Paul J Kingham, Andreas Ullrich, Sven Oberhoffner, Monika Renardy, Michael Doser, Erhard Müller, Mikael Wiberg, Lev N Novikov
Spinal cord injury (SCI) is often associated with scarring and cavity formation and therefore bridging strategies are essential to provide a physical substrate for axonal regeneration. In this study we investigated the effects of a biodegradable conduit made from trimethylene carbonate and ε-caprolactone (TC) containing poly-p-dioxanone microfilaments (PDO) with longitudinal grooves on regeneration after SCI in adult rats. In vitro studies demonstrated that different cell types including astrocytes, meningeal fibroblasts, Schwann cells and adult sensory dorsal root ganglia neurons can grow on the TC and PDO material...
November 22, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29163001/implantation-of-3d-constructs-embedded-with-oral-mucosa-derived-cells-induces-functional-recovery-in-rats-with-complete-spinal-cord-transection
#11
Javier Ganz, Erez Shor, Shaowei Guo, Anton Sheinin, Ina Arie, Izhak Michaelevski, Sandu Pitaru, Daniel Offen, Shulamit Levenberg
Spinal cord injury (SCI), involving damaged axons and glial scar tissue, often culminates in irreversible impairments. Achieving substantial recovery following complete spinal cord transection remains an unmet challenge. Here, we report of implantation of an engineered 3D construct embedded with human oral mucosa stem cells (hOMSC) induced to secrete neuroprotective, immunomodulatory, and axonal elongation-associated factors, in a complete spinal cord transection rat model. Rats implanted with induced tissue engineering constructs regained fine motor control, coordination and walking pattern in sharp contrast to the untreated group that remained paralyzed (42 vs...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29160240/remapping-cortical-modulation-for-electrocorticographic-brain-computer-interfaces-a-somatotopy-based-approach-in-individuals-with-upper-limb-paralysis
#12
Alan D Degenhart, Shivayogi V Hiremath, Ying Yang, Stephen T Foldes, Jennifer L Collinger, Michael L Boninger, Elizabeth C Tyler-Kabara, Wei Wang
OBJECTIVE: Brain-computer interface (BCI) technology aims to provide individuals with paralysis a means to restore function. Electrocorticography (ECoG) uses disc electrodes placed on either the surface of the dura or the cortex to record field potential activity. ECoG has been proposed as a viable neural recording modality for BCI systems, potentially providing stable, long-term recordings of cortical activity with high spatial and temporal resolution. Previously we have demonstrated that a subject with spinal cord injury (SCI) could control an ECoG-based BCI system with up to three degrees of freedom [Wang et al...
November 21, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29160143/some-autonomic-deficits-of-acute-or-chronic-cervical-spinal-contusion-reversed-by-interim-brainstem-stimulation
#13
Alberto A Vitores, Stephanie S Sloley, Catalina Martinez, Melissa M Carballosa-Gautam, Ian D Hentall
Prolonged electrical stimulation of the hindbrain's nucleus raphe magnus (NRM) or its major midbrain input region, the periaqueductal gray (PAG), was previously found in rats to promote recovery from sensory-motor and histological deficits of acute thoracic spinal cord injury (SCI). Here, some visceral deficits of acute and chronic midline cervical (C5) contusion are similarly examined. Cranially implanted wireless stimulators delivered intermittent 8 Hz, 30-70 µA cathodal pulse trains to a brainstem microelectrode...
November 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29149152/loss-of-efficacy-to-spinal-cord-stimulator-therapy-clinical-evidence-and-possible-causes
#14
Christopher M Aiudi, Roger Y Dunn, Sara M Burns, Sarah A Roth, Arissa Opalacz, Yi Zhang, Lucy Chen, Jianren Mao, Shihab U Ahmed
BACKGROUND: Although spinal cord stimulation (SCS) therapy has been shown to be efficacious in various pain conditions, the ability for SCS therapy to maintain long-term efficacy has been questioned. OBJECTIVE: The purpose of this study was to investigate whether a loss of efficacy (LOE) phenomenon exists with SCS therapy and to investigate if this phenomenon is more apparent in any specific patient population. STUDY DESIGN: A retrospective, observation chart review was conducted to evaluate the patient response to SCS therapy over time...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29147083/spinal-cord-stimulation-in-failed-back-surgery-syndrome-effects-on-posture-and-gait-a-preliminary-3d-biomechanical-study
#15
L Brugliera, A De Luca, S Corna, M Bertolotto, G A Checchia, M Cioni, P Capodaglio, C Lentino
We studied 8 patients with spinal cord stimulation (SCS) devices which had been previously implanted to treat neuropathic chronic pain secondary to Failed Back Surgery Syndrome. The aim of our study was to investigate the effects of SCS on posture and gait by means of clinical scales (Short Form Health Survey-36, Visual Analogue Scale for pain, and Hamilton Depression Rating Scale) and instrumented evaluation with 3D Gait Analysis using a stereophotogrammetric system. The latter was performed with the SCS device turned both OFF and ON...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/29131488/dorsal-root-ganglion-stimulation-used-for-the-treatment-of-chronic-neuropathic-pain-in-the-groin-a-single-center-study-with-long-term-prospective-results-in-34-cases
#16
Matthias Hubert Morgalla, Anil Bolat, Marcos Fortunato, Guilherme Lepski, Bankim Subhash Chander
OBJECTIVE: Chronic neuropathic pain in the groin is a severe condition and difficult to treat. Dorsal root ganglion stimulation (DRGS) covers discrete painful areas precisely with its stimulation power in comparison to spinal cord stimulation (SCS). It was our hypothesis that DRGS provides a long-term relief of chronic groin pain over a period of more than three years. MATERIALS AND METHODS: Patients (age >18 years) with chronic neuropathic groin pain were prospectively examined...
November 13, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29131367/influence-of-the-neural-microenvironment-on-prostate-cancer
#17
Christian Coarfa, Diego Florentin, NagiReddy Putluri, Yi Ding, Jason Au, Dandan He, Ahmed Ragheb, Anna Frolov, George Michailidis, MinJae Lee, Dov Kadmon, Brian Miles, Christopher Smith, Michael Ittmann, David Rowley, Arun Sreekumar, Chad J Creighton, Gustavo Ayala
BACKGROUND: Nerves are key factors in prostate cancer (PCa), but the functional role of innervation in prostate cancer is poorly understood. PCa induced neurogenesis and perineural invasion (PNI), are associated with aggressive disease. METHOD: We denervated rodent prostates chemically and physically, before orthotopically implanting cancer cells. We also performed a human neoadjuvant clinical trial using botulinum toxin type A (Botox) and saline in the same patient, before prostatectomy...
November 13, 2017: Prostate
https://www.readbyqxmd.com/read/29114283/a-method-for-reconstruction-of-severely-damaged-spinal-cord-using-autologous-hematopoietic-stem-cells-and-platelet-rich-protein-as-a-biological-scaffold
#18
Ahmed Sabry Ammar, Yasser Osman, Ahmed Taher Hendam, Mohammed Ahmed Hasen, Fatma Abdullah Al Rubaish, Danya Yaagoub Al Nujaidi, Faisal Mishal Al Abbas
Introduction: There have been attempts to alter the prognosis of severe spinal cord injury in different centers, but none of which have reliably altered the outcome. Some trials use stem cells (SCs) that produced widely differing results. We hereby add our experience in our center of a surgical reconstruction of the damaged spinal cord using a mixture of SCs and Platelet-Rich Protein (PRP) with fibrin coated as a biological scaffold. Materials and Methods: Four cases of severely damaged spinal cord have been operated for neurolysis and reconstruction of the spinal cord using SCs and platelet-rich protein (PRP) with fibrin coated harvested from the peripheral circulation of the patient...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29109298/severity-of-neuropathy-is-associated-with-long-term-spinal-cord-stimulation-outcome-in-painful-diabetic-peripheral-neuropathy-five-year-follow-up-of-a-prospective-two-center-clinical-trial
#19
Maarten van Beek, José W Geurts, Rachel Slangen, Nicolaas C Schaper, Catharina G Faber, Elbert A Joosten, Carmen D Dirksen, Robert T van Dongen, Sander M J van Kuijk, Maarten van Kleef
OBJECTIVE: Evidence from prospective studies for long-term treatment efficacy of spinal cord stimulation (SCS) in painful diabetic polyneuropathy (PDPN) is not available. We report prospective data on the effect of SCS on pain ratings, treatment success and failure, and complications during a 5-year follow-up in patients with PDPN. RESEARCH DESIGN AND METHODS: Patients with PDPN (n = 48) were included in this prospective multicenter study. The Michigan Diabetic Neuropathy Score (MDNS) was used to assess the severity of neuropathy...
November 6, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29106428/modified-acellular-nerve-delivering-pmscs-improve-functional-recovery-in-rats-after-complete-spinal-cord-transection
#20
Ting Tian, Zhenhai Yu, Naili Zhang, Yingwei Chang, Yuqiang Zhang, Luping Zhang, Shuai Zhou, Chunlei Zhang, Guoying Feng, Fei Huang
Due to the poor regeneration capacity of neurons and the inhibitory microenvironment, spontaneous regeneration in spinal cord injury (SCI) remains challenging. Tissue engineering is considered a promising approach for enhancing the regeneration of SCI by reconstructing the inherent structure and improving the microenvironment. In this study, the possibility of engineering a nerve complex, which is constructed by acellular nerve delivering placenta mesenchymal stem cells (PMSCs), was assessed for the recovery of a transected spinal cord...
November 6, 2017: Biomaterials Science
keyword
keyword
108386
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"