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Tibial nerve stimulation

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https://www.readbyqxmd.com/read/27902645/effect-of-nerve-stimulation-use-on-the-success-rate-of-ultrasound-guided-subsartorial-saphenous-nerve-block-a-randomized-controlled-trial
#1
Shaylyn H Montgomery, Colleen M Shamji, Grace S Yi, Cynthia H Yarnold, Stephen J Head, Scott C Bell, Stephan K W Schwarz
BACKGROUND AND OBJECTIVES: Ultrasound-guided subsartorial saphenous nerve block is commonly used to provide complete surgical anesthesia of the foot and ankle in combination with a popliteal sciatic nerve block. However, in part owing to its small caliber and absence of a prominent vascular landmark in the subsartorial plane distal to the adductor canal, the saphenous nerve is more difficult to reliably block than the sciatic nerve in the popliteal fossa. Although the saphenous nerve is a sensory nerve only, neurostimulation can be used to elicit a "tapping" sensation on the anteromedial aspect of the lower leg extending toward the medial malleolus...
November 29, 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27895925/somatic-neural-alterations-in-non-diabetic-obesity-a-cross-sectional-study
#2
Ram Lochan Yadav, Deepak Sharma, Prakash Kumar Yadav, Dev Kumar Shah, Kopila Agrawal, Rita Khadka, Md Nazrul Islam
BACKGROUND: Reports on alterations in somatic neural functions due to non-diabetic obesity, a major risk factor for diabetes, are few and still a matter of debate. Nevertheless, to our knowledge, reports lack any comments on the type of somatic nerve fibers affected in non-diabetic obesity. Therefore, this study aimed to find out the alteration in somatic neural functions in non-diabetic obese persons if any. METHODS: The study was conducted on 30 adult non-diabetic obese persons (mean age 32...
2016: BMC Obesity
https://www.readbyqxmd.com/read/27879521/tibial-nerve-stimulation-to-inhibit-the-micturition-reflex-by-an-implantable-wireless-driver-microstimulator-in-cats-retracted
#3
Xing Li, Li-Min Liao, Guo-Qing Chen, Zhao-Xia Wang, Tian-Ji Lu, Han Deng, Gerald-E Loeb
BACKGROUND: Traditional tibial nerve stimulation (TNS) has been used to treat overactive bladder syndrome (OAB), but there are some shortcomings. Thus, a novel alternative is needed for the treatment of OAB. The study investigated the effects of a new type of tibial nerve microstimulator on the micturition reflex in cats. METHODS: An implantable wireless driver microstimulator was implanted around the tibial nerve in 9 α-chloralose anesthetized cats. Cystometry was performed by infusing 0...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27865751/feasibility-of-long-term-tibial-nerve-stimulation-using-a-multi-contact-and-wirelessly-powered-neurostimulation-system-implanted-in-rats
#4
Zainab Moazzam, Jason Paquette, Austin R Duke, Navid Khodaparast, Paul B Yoo
OBJECTIVES: Implant-driven tibial nerve stimulation (TNS) therapy is an effective technique for treating overactive bladder (OAB). However, the monopolar lead design in the currently available implantable devices pose long-term therapeutic challenges in terms of efficiently and selectively delivering electrical pulses to the target. Hence, the purpose of this study was to: (1) characterize the tibial nerve (TN) activation properties using a multi-contact implantable system and (2) evaluate the long-term stability of using such a neural interface in a pre-clinical model...
November 16, 2016: Urology
https://www.readbyqxmd.com/read/27803647/nr2b-expression-in-rat-drg-is-differentially-regulated-following-peripheral-nerve-injuries-that-lead-to-transient-or-sustained-stimuli-evoked-hypersensitivity
#5
Monica Norcini, Alexandra Sideris, Samantha M Adler, Lourdes A M Hernandez, Jin Zhang, Thomas J J Blanck, Esperanza Recio-Pinto
Following injury, primary sensory neurons undergo changes that drive central sensitization and contribute to the maintenance of persistent hypersensitivity. NR2B expression in the dorsal root ganglia (DRG) has not been previously examined in neuropathic pain models. Here, we investigated if changes in NR2B expression within the DRG are associated with hypersensitivities that result from peripheral nerve injuries. This was done by comparing the NR2B expression in the DRG derived from two modalities of the spared nerve injury (SNI) model, since each variant produces different neuropathic pain phenotypes...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27802008/percutaneous-tibial-nerve-stimulation-versus-electrical-stimulation-with-pelvic-floor-muscle-training-for-overactive-bladder-syndrome-in-women-results-of-a-randomized-controlled-study
#6
Carlo Vecchioli Scaldazza, Carolina Morosetti, Rosita Giampieretti, Rossana Lorenzetti, Marinella Baroni
INTRODUCTION: This study compared percutaneous tibial nerve stimulation (PTNS) versus electrical stimulation with pelvic floor muscle training (ES + PFMT) in women with overactive bladder syndrome (OAB). MATERIALS AND METHODS: 60 women with OAB were enrolled. Patients were randomized into two groups. In group A, women underwent ES with PFMT, in group B women underwent PTNS. RESULTS: A statistically significant reduction in the number of daily micturitions, episo¬des of nocturia and urge incontinence was found in the two groups but the difference was more substantial in women treated with PTNS; voided volume increased in both groups...
November 2, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27793654/transcutaneous-electrical-nerve-stimulation-of-the-foot-results-of-a-novel-at-home-noninvasive-treatment-for-nocturnal-enuresis-in-children
#7
Matthew C Ferroni, Rajeev Chaudhry, Bing Shen, Christopher J Chermansky, Glenn M Cannon, Francis X Schneck, Michael C Ost, Changfeng Tai, Heidi A Stephany
OBJECTIVE: To evaluate the effect of a novel at-home approach to electrical foot stimulation of peripheral tibial nerve branches on the frequency of nocturnal enuresis episodes in children. MATERIALS AND METHODS: Children aged 5 to 18 having 2 or more bedwetting episodes per week for at least 3 consecutive months were eligible. The study was a total of 6 weeks. Participants completed a baseline nighttime voiding diary during the first 2 weeks. This was followed by 2 weeks of foot stimulation for 60 minutes each night...
October 25, 2016: Urology
https://www.readbyqxmd.com/read/27778372/lumbosacral-spinal-segmental-contributions-to-tibial-and-pudendal-neuromodulation-of-bladder-overactivity-in-cats
#8
Utsav Bansal, Thomas W Fuller, Xuewen Jiang, Jathin Bandari, Zhaocun Zhang, Bing Shen, Jicheng Wang, James R Roppolo, William C de Groat, Changfeng Tai
AIMS: To determine the spinal segmental afferent contributions to tibial and pudendal inhibition of bladder overactivity. METHODS: Intravesical infusion of 0.5% acetic acid was used to irritate the bladder and induce bladder overactivity in anesthetized cats. Tibial or pudendal nerve stimulation was used to suppress the bladder overactivity and increase bladder capacity during cystometry. L5-S3 dorsal roots ipsilateral to the stimulation were exposed by a laminectomy and transected sequentially during the experiments to determine the role of individual dorsal roots in tibial or pudendal neuromodulation...
October 24, 2016: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/27753733/cauda-equina-conduction-time-determined-by-f-waves-in-normal-subjects-and-patients-with-neurogenic-intermittent-claudication-caused-by-lumbar-spinal-stenosis
#9
Yasuaki Imajo, Tsukasa Kanchiku, Hidenori Suzuki, Masahiro Funaba, Norihiro Nishida, Kazuhiro Fujimoto, Toshihiko Taguchi
INTRODUCTION: Lumbar spinal stenosis (LSS) typically presents with neurogenic intermittent claudication (NIC). The aim is to investigate cauda equina conduction time (CECT) in patients with NIC caused by LSS and its relationship with age and body height in normal subjects. METHODS: The study included 172 normal subjects (mean age 44.1 ± 16.6 years; mean height 163.7 ± 8.9 cm). (Group C) 47 patients (mean age 71.3 ± 8.7 years; mean height 158.8 ± 11.2 cm) underwent surgery due to NIC in cauda equina type for LSS...
October 5, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27737808/in-vivo-voltage-sensitive-dye-imaging-of-the-insular-cortex-in-nerve-injured-rats
#10
Jeongsoo Han, Myeounghoon Cha, Minjee Kwon, Seong-Karp Hong, Sun Joon Bai, Bae Hwan Lee
The insular cortex (IC) is a pain-related brain region that receives various types of sensory input and processes the emotional aspects of pain. The present study was conducted to investigate spatiotemporal patterns related to neuroplastic changes in the IC after nerve injury using voltage-sensitive dye imaging. The tibial and sural nerves of rats were injured under pentobarbital anesthesia. To observe optical signals in the IC, rats were re-anesthetized with urethane 7days after injury, and a craniectomy was performed to allow for optical imaging...
October 11, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27736308/dynamic-fatigue-does-not-alter-soleus-h-reflexes-conditioned-by-homonymous-or-heteronymous-pathways
#11
Preeti D Oza, Shauna Dudley-Javoroski, Richard K Shields
H-reflex depression (diminution of amplitude after a conditioning stimulus) is mediated presynaptically and therefore can help distinguish central versus peripheral mechanisms of fatigue. We examined the effects of a dynamic exercise protocol on H-reflex depression using two conditioning methods: homonymous conditioning (paired-pulse tibial nerve stimulation); and heteronymous conditioning (common peroneal nerve stimulation). Ten subjects performed dynamic contractions of the soleus muscle through 30° ankle range of motion...
October 13, 2016: Motor Control
https://www.readbyqxmd.com/read/27725887/training-specific-neural-plasticity-in-spinal-reflexes-after-incomplete-spinal-cord-injury
#12
Atif S Khan, Susan K Patrick, Francois D Roy, Monica A Gorassini, Jaynie F Yang
The neural plasticity of spinal reflexes after two contrasting forms of walking training was determined in individuals with chronic, motor-incomplete spinal cord injury (SCI). Endurance Training involved treadmill walking for as long as possible, and Precision Training involved walking precisely over obstacles and onto targets overground. Twenty participants started either Endurance or Precision Training for 2 months and then crossed over after a 2-month rest period to the other form of training for 2 months...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27689422/intraoperative-electrophysiological-monitoring-for-c1-2-spinal-cord-stimulation
#13
Laura M Muncie, Nathaniel R Ellens, Emeline Tolod-Kemp, Claudio A Feler, John S Winestone
OBJECTIVE This study is a retrospective case series involving C1-2 spinal cord stimulation in patients with complex regional pain syndrome (CRPS) under general endotracheal anesthesia. Currently, C1-2 paddle lead placement is an accepted practice, which provides effective cervical stimulation to ameliorate upper-extremity and sometimes lower-extremity symptoms experienced by patients with CRPS. However, this technique must be performed under general endotracheal anesthesia rather than in an awake or semiconscious state due to intraoperative safety concerns and patient comfort...
September 30, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27687223/dorsal-root-ganglionic-field-stimulation-relieves-spontaneous-and-induced-neuropathic-pain-in-rats
#14
Bin Pan, Hongwei Yu, Gregory J Fischer, Jeffery M Kramer, Quinn H Hogan
: Dorsal root ganglion (DRG) electrical stimulation (ganglionic field stimulation [GFS]) is effective in relieving clinical pain, but its mechanism is unknown. We therefore developed a rat model for GFS to test analgesic effects in the context of neuropathic pain. GFS was applied with a bipolar electrode at L4, using parameters replicating clinical use (20 Hz, 150-μs pulse width, current at 80% of motor threshold). Neuropathic pain was generated by tibial nerve injury (TNI). Pain behavior was monitored by determining the threshold for withdrawal from punctate mechanical stimuli, by identifying hyperalgesic responses to noxious mechanical stimuli, and by hypersensitivity to cold...
September 26, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27633930/early-impairment-of-somatosensory-evoked-potentials-in-very-young-children-with-achondroplasia-with-foramen-magnum-stenosis
#15
Stefania Fornarino, Daniela Paola Rossi, Mariasavina Severino, Angela Pistorio, Anna Elsa Maria Allegri, Simona Martelli, Laura Doria Lamba, Paola Lanteri
AIM: To evaluate the contribution of somatosensory evoked potentials after median nerve (MN-SEPs) and posterior tibial nerve (PTN-SEPs) stimulation in functional assessment of cervical and lumbar spinal stenosis in children with achondroplasia. METHOD: We reviewed MN-SEPs, PTN-SEPs, and spinal magnetic resonance imaging (MRI) examinations performed in 58 patients with achondroplasia (25 males, 33 females; age range 21d-16y 10mo; mean age 4y 3mo [SD 4y 1mo]). Patients were subdivided into four age categories: <2 years, between 2 to 4 years, between 4 to 8 years, and ≥8 years...
September 16, 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27628204/botulinum-toxin-injection-causes-hyper-reflexia-and-increased-muscle-stiffness-of-the-triceps-surae-muscle-in-the-rat
#16
Jessica Pingel, Jacob Wienecke, Jakob Lorentzen, Jens Bo Nielsen
Botulinum toxin is used with the intention of diminishing spasticity and reducing the risk of development of contractures. Here, we investigated changes in muscle stiffness caused by reflex activity or elastic muscle properties following botulinum toxin injection in the triceps surae muscle in rats. Forty-four rats received injection of botulinum toxin in the left triceps surae muscle. Control measurements were performed on the noninjected contralateral side in all rats. Acute experiments were performed, 1, 2, 4, and 8 wk following injection...
December 1, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27583411/neurostimulation-of-the-gastrointestinal-tract-in-children-is-it-time-to-shock-the-gut
#17
Peter L Lu, Carlo Di Lorenzo
PURPOSE OF REVIEW: The use of neurostimulation for treatment of gastrointestinal disorders has been growing over the past two to three decades. Our objective is to review current applications of neurostimulation in the treatment of gastrointestinal disorders with an emphasis on the use of these treatment modalities in children. RECENT FINDINGS: Gastric electrical stimulation can lead to symptomatic improvement in children with chronic nausea and vomiting refractory to conventional treatment, and a recent report of long-term outcomes is encouraging...
October 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27579882/tibial-and-fibular-nerves-evaluation-using-intraoperative-electromyography-in-rats
#18
André Coelho Nepomuceno, Elisa Landucci Politani, Eduardo Guandelini da Silva, Raquel Salomone, Marco Vinicius Losso Longo, Alessandra Grassi Salles, José Carlos Marques de Faria, Rolf Gemperli
PURPOSE: To evaluate a new model of intraoperative electromyographic (EMG) assessment of the tibial and fibular nerves, and its respectives motor units in rats. METHODS: Eight Wistar rats underwent intraoperative EMG on both hind limbs at two different moments: week 0 and week 12. Supramaximal electrical stimulation applied on sciatic nerve, and compound muscle action potential recorded on the gastrocnemius muscle (GM) and the extensor digitorum longus muscle (EDLM) through electrodes at specifics points...
August 2016: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/27552219/electrical-stimulation-of-low-threshold-proprioceptive-fibers-in-the-adult-rat-increases-density-of-glutamatergic-and-cholinergic-terminals-on-ankle-extensor-%C3%AE-motoneurons
#19
Olga Gajewska-Woźniak, Kamil Grycz, Julita Czarkowska-Bauch, Małgorzata Skup
The effects of stimulation of low-threshold proprioceptive afferents in the tibial nerve on two types of excitatory inputs to α-motoneurons were tested. The first input is formed by glutamatergic Ia sensory afferents contacting monosynaptically α-motoneurons. The second one is the cholinergic input originating from V0c-interneurons, located in lamina X of the spinal cord, modulating activity of α-motoneurons via C-terminals. Our aim was to clarify whether enhancement of signaling to ankle extensor α-motoneurons, via direct electrical stimulation addressed predominantly to low-threshold proprioceptive fibers in the tibial nerve of awake rats, will affect Ia glutamatergic and cholinergic innervation of α-motoneurons of lateral gastrocnemius (LG)...
2016: PloS One
https://www.readbyqxmd.com/read/27541337/a-soft-ankle-brace-increases-soleus-hoffman-reflex-amplitude-but-does-not-modify-presynaptic-inhibition-during-upright-standing
#20
Sébastien Pavailler, Nicolas Forestier, Frédérique Hintzy, Nicolas Horvais, Thomas Lapole
External ankle supports, such as ankle braces, may improve postural stability by stimulating cutaneous receptors. It remains unknown whether these supports have an effect on the posture central regulation. The aim of this study was to determine the effect of wearing a soft ankle brace on soleus H-reflex amplitude and presynaptic inhibition during standing. Sixteen subjects stood on a rigid floor with their eyes opened, either barefoot or wearing a soft ankle brace. H-reflex amplitude was measured on the soleus muscle by stimulating the tibial nerve electrically...
September 2016: Gait & Posture
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