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Neuromodulation literature

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166 papers 100 to 500 followers
By Andreas Tarnaris Consultant Neurosurgeon
https://www.readbyqxmd.com/read/29878147/physiological-mechanisms-of-thalamic-ventral-intermediate-nucleus-stimulation-for-tremor-suppression
#1
Luka Milosevic, Suneil K Kalia, Mojgan Hodaie, Andres M Lozano, Milos R Popovic, William D Hutchison
Ventral intermediate thalamic deep brain stimulation is a standard therapy for the treatment of medically refractory essential tremor and tremor-dominant Parkinson's disease. Despite the therapeutic benefits, the mechanisms of action are varied and complex, and the pathophysiology and genesis of tremor remain unsubstantiated. This intraoperative study investigated the effects of high frequency microstimulation on both neuronal firing and tremor suppression simultaneously. In each of nine essential tremor and two Parkinson's disease patients who underwent stereotactic neurosurgery, two closely spaced (600 µm) microelectrodes were advanced into the ventral intermediate nucleus...
June 5, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29694917/longitudinal-structural-and-functional-brain-network-alterations-in-a-mouse-model-of-neuropathic-pain
#2
Ainhoa Bilbao, Claudia Falfán-Melgoza, Sarah Leixner, Robert Becker, Sathish Kumar Singaravelu, Markus Sack, Alexander Sartorius, Rainer Spanagel, Wolfgang Weber-Fahr
Neuropathic pain affects multiple brain functions, including motivational processing. However, little is known about the structural and functional brain changes involved in the transition from an acute to a chronic pain state. Here we combined behavioral phenotyping of pain thresholds with multimodal neuroimaging to longitudinally monitor changes in brain metabolism, structure and connectivity using the spared nerve injury (SNI) mouse model of chronic neuropathic pain. We investigated stimulus-evoked pain responses prior to SNI surgery, and one and twelve weeks following surgery...
April 22, 2018: Neuroscience
https://www.readbyqxmd.com/read/26871535/brain-activations-during-pain-a-neuroimaging-meta-analysis-of-patients-with-pain-and-healthy-controls
#3
Karin B Jensen, Christina Regenbogen, Margarete C Ohse, Johannes Frasnelli, Jessica Freiherr, Johan N Lundström
In response to recent publications from pain neuroimaging experiments, there has been a debate about the existence of a primary pain region in the brain. Yet, there are few meta-analyses providing assessments of the minimum cerebral denominators of pain. Here, we used a statistical meta-analysis method, called activation likelihood estimation, to define (1) core brain regions activated by pain per se, irrelevant of pain modality, paradigm, or participants and (2) activation likelihood estimation commonalities and differences between patients with chronic pain and healthy individuals...
June 2016: Pain
https://www.readbyqxmd.com/read/26889616/randomized-sham-controlled-double-blind-multicenter-clinical-trial-to-ascertain-the-effect-of-percutaneous-radiofrequency-treatment-for-sacroiliac-joint-pain-three-month-results
#4
RANDOMIZED CONTROLLED TRIAL
Cornelis W J van Tilburg, Fleur A Schuurmans, Dirk L Stronks, Johannes G Groeneweg, Frank J P M Huygen
OBJECTIVES: To investigate the effect of a percutaneous radiofrequency (RF) heat lesion compared with a sham procedure, applied to the lateral branches of L5, S1, S2, S3, and S4 nerve roots. MATERIALS AND METHODS: Sixty patients aged 18 years and above with a medical history and physical examination suggestive for sacroiliac joint pain and a reduction of 2 or more on a numerical rating scale (NRS, 0 to 10) after a sacroiliac joint test block were included in this study...
November 2016: Clinical Journal of Pain
https://www.readbyqxmd.com/read/26935254/neuropathic-low-back-pain-in-clinical-practice
#5
REVIEW
R Baron, A Binder, N Attal, R Casale, A H Dickenson, R-D Treede
BACKGROUND AND OBJECTIVE: Low back pain (LBP) is one of the most common chronic pain conditions. This paper reviews the available literature on the role of neuropathic mechanisms in chronic LBP and discusses implications for its clinical management, with a particular focus on pharmacological treatments. DATABASES AND DATA TREATMENT: Literature searches were performed in PubMed, key pain congresses and ProQuest Dialog to identify published evidence on neuropathic back pain and its management...
July 2016: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29230247/wireless-neuromodulation-for-chronic-back-pain-delivery-of-high-frequency-dorsal-root-ganglion-stimulation-by-a-minimally-invasive-technique
#6
Bart Billet, Roel Wynendaele, Niek E Vanquathem
Objective: To evaluate the analgesic effect of a dorsal root ganglion (DRG) stimulation technology utilizing high-frequency pulse rates to treat intractable chronic back and leg pain. Methods: This case study presents the outcomes, with a novel, wireless, minimally invasive miniature neurostimulator system in a case of chronic back pain. The subject was implanted bilaterally with a Freedom 4A quadripolar electrode array at the L2 dorsal root ganglion. Stimulation was applied using 10 kHz pulse rate and 30 μs pulse width...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/29707900/an-observational-case-series-of-spinal-cord-stimulation-waveforms-visualized-on-intraoperative-neuromonitoring
#7
Steven M Falowski
INTRODUCTION: Intraoperative neuromonitoring for spinal cord stimulation uses electromyography (EMG) responses to determine myotomal coverage as a marker for dermatomal coverage. These responses are utilized to determine the orientation of the electrode. Somatosensory evoked potential (SSEP) collision testing can also be used in which sensory signals are decreased and/or eliminated when stimulation is activated. METHODS: Fifteen patients were observed in the study...
April 29, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29718809/optogenetic-surface-stimulation-of-the-rat-cervical-spinal-cord
#8
Sarah E Mondello, Michael D Sunshine, Amanda E Fischedick, Sam J Dreyer, Gregory D Horwitz, Polina Anikeeva, Philip J Horner, Chet T Moritz
Electrical intraspinal microstimulation (ISMS) at various sites along the cervical spinal cord permits forelimb muscle activation, elicits complex limb movements, and may enhance functional recovery after spinal cord injury (SCI). Here, we explore optogenetic spinal stimulation (OSS) as a less invasive and cell-type specific alternative to ISMS. To map forelimb muscle activation by OSS in rats, adeno-associated viruses (AAV) carrying the blue-light sensitive ion channels channelrhodopsin-2 (ChR2) and Chronos were injected into the cervical spinal cord at different depths and volumes...
May 2, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29116423/postoperative-occipital-neuralgia-in-posterior-upper-cervical-spine-surgery-a-systematic-review
#9
Qing Guan, Fei Xing, Ye Long, Zhou Xiang
Postoperative occipital neuralgia (PON) after upper cervical spine surgery can cause significant morbidity and may be overlooked. The causes, presentation, diagnosis, management, prognosis, and prevention of PON were reviewed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. English-language studies and case reports published from inception to 2017 were retrieved. Data on surgical procedures, incidence, cause of PON, management, outcomes, and preventive technique were extracted...
November 7, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/29554316/concurrent-placement-of-bilateral-suboccipital-and-supraorbital-nerve-stimulators-using-on-q-tunneler-technical-note
#10
Lara Massie, Rushna Ali, Konstantin V Slavin, Jason M Schwalb
BACKGROUND: Stimulation of the occipital and supraorbital nerves is used to treat chronic migraine refractory to medical management. Placement of cranial leads is often challenging due to the rigid Touhy needle included in the kit for its placement. OBJECTIVE: To report the first case of concurrent placement of bilateral supraorbital (SNS) and occipital nerve stimulators (ONS) from a unilateral approach using the On-Q* Tunneler, (Halyard Health, Alpharetta, Georgia) a flexible, blunt tipped plastic tunneler with a tear-away sheath...
March 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29670050/epilepsy-and-neuromodulation-randomized-controlled-trials
#11
Churl-Su Kwon, Valeria Ripa, Omar Al-Awar, Fedor Panov, Saadi Ghatan, Nathalie Jetté
Neuromodulation is a treatment strategy that is increasingly being utilized in those suffering from drug-resistant epilepsy who are not appropriate for resective surgery. The number of double-blinded RCTs demonstrating the efficacy of neurostimulation in persons with epilepsy is increasing. Although reductions in seizure frequency is common in these trials, obtaining seizure freedom is rare. Invasive neuromodulation procedures (DBS, VNS, and RNS) have been approved as therapeutic measures. However, further investigations are necessary to delineate effective targeting, minimize side effects that are related to chronic implantation and to improve the cost effectiveness of these devices...
April 18, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29706482/pain-in-pancreatic-ductal-adenocarcinoma-a-multidisciplinary-international-guideline-for-optimized-management
#12
REVIEW
Asbjørn M Drewes, Claudia M Campbell, Güralp O Ceyhan, Myriam Delhaye, Pramod K Garg, Harry van Goor, Berta Laquente, Bart Morlion, Søren S Olesen, Vikesh K Singh, Per Sjøgren, Eva Szigethy, John A Windsor, Marina G Salvetti, Rupjyoti Talukdar
Abdominal pain is an important symptom in most patients with pancreatic ductal adenocarcinoma (PDAC). Adequate control of pain is often unsatisfactory due to limited treatment options and significant variation in local practice, emphasizing the need for a multidisciplinary approach. This review contends that improvement in the management of PDAC pain will result from a synthesis of best practice and evidence around the world in a multidisciplinary way. To improve clinical utility and evaluation, the evidence was rated according to the GRADE guidelines by a group of international experts...
April 22, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29619317/influence-of-inter-stimulus-interval-of-spinal-cord-stimulation-in-patients-with-disorders-of-consciousness-a-preliminary-functional-near-infrared-spectroscopy-study
#13
Yujin Zhang, Yi Yang, Juanning Si, Xiaoyu Xia, Jianghong He, Tianzi Jiang
Spinal cord stimulation (SCS) is a promising treatment for disorders of consciousness (DOC), but the underlying mechanism and most effective procedures remain uncertain. To optimize the protocol, previous studies evaluated the frequency-specific effects of SCS on neurophysiological activities. However, whether and how the inter-stimulus interval (ISI) parameter affects the SCS neuromodulation in DOC remains unknown. We enrolled nine DOC patients who had implanted SCS devices and conducted three different durations of ISIs...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29674264/ultrasonic-modulation-of-neural-circuit-activity
#14
REVIEW
William J Tyler, Shane W Lani, Grace M Hwang
Ultrasound (US) is recognized for its use in medical imaging as a diagnostic tool. As an acoustic energy source, US has become increasingly appreciated over the past decade for its ability to non-invasively modulate cellular activity including neuronal activity. Data obtained from a host of experimental models has shown that low-intensity US can reversibly modulate the physiological activity of neurons in peripheral nerves, spinal cord, and intact brain circuits. Experimental evidence indicates that acoustic pressures exerted by US act, in part, on mechanosensitive ion channels to modulate activity...
June 2018: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29565946/anatomy-pathophysiology-and-interventional-therapies-for-chronic-pelvic-pain-a-review
#15
Corey W Hunter, Brad Stovall, Grant Chen, Jonathan Carlson, Robert Levy
BACKGROUND: Chronic pelvic pain (CPP) represents a group of poorly understood disorders that are often refractory to conventional treatment. Referral to pain management typically occurs later in the continuum of care; as such, many of the injections and nerve blocks commonly prescribed for such patients are potentially limited in efficacy. While neuromodulation is conventionally considered the next algorithmic step in the treatment of chronic pain after injections fail, there is a common perception that neuromodulation is largely ineffective for CPP conditions...
March 2018: Pain Physician
https://www.readbyqxmd.com/read/29608974/pain-neuroimaging-in-humans-a-primer-for-beginners-and-non-imagers
#16
Massieh Moayedi, Tim V Salomons, Lauren Y Atlas
Human pain neuroimaging has exploded in the past 2 decades. During this time, the broader neuroimaging community has continued to investigate and refine methods. Another key to progress is exchange with clinicians and pain scientists working with other model systems and approaches. These collaborative efforts require that non-imagers be able to evaluate and assess the evidence provided in these reports. Likewise, new trainees must design rigorous and reliable pain imaging experiments. In this article we provide a guideline for designing, reading, evaluating, analyzing, and reporting results of a pain neuroimaging experiment, with a focus on functional and structural magnetic resonance imaging...
March 30, 2018: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29538696/spinal-cord-stimulation-for-the-treatment-of-chronic-pain-reduces-opioid-use-and-results-in-superior-clinical-outcomes-when-used-without-opioids
#17
Lucy Gee, Heather C Smith, Zohal Ghulam-Jelani, Hirah Khan, Julia Prusik, Paul J Feustel, Sarah E McCallum, Julie G Pilitsis
BACKGROUND: Chronic pain causes a significant burden to the US health care system, is difficult to treat, and remains a significant contributor to increased opioid use in the United States. Spinal cord stimulation (SCS) has been FDA approved for the treatment of chronic pain. OBJECTIVE: To evaluate the hypothesis that SCS reduces opioid use, and alone maintains clinical outcome measures of pain and psychosocial determinants of health. METHODS: In this prospective cohort study, we evaluated 86 patients undergoing SCS surgery for the treatment of chronic pain between September 2012 and August 2015...
March 12, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29614489/hyperbaric-oxygen-therapy-as-adjuvant-treatment-for-hardware-related-infections-in-neuromodulation
#18
Jiri Bartek, Simon Skyrman, Michael Nekludov, Tiit Mathiesen, Folke Lind, Gaston Schechtmann
BACKGROUND: In neuromodulation therapies, hardware-related infections are a major challenge often leading to hardware removal. OBJECTIVE: To investigate the role of adjuvant hyperbaric oxygen therapy (HBOT) in hardware-related infections. METHODS: Fourteen hardware-related infection events in 12 consecutive patients between 2002 and 2015 were treated with antibiotics and adjuvant HBOT at the Karolinska University Hospital (Stockholm, Sweden)...
April 3, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/29671870/wireless-high-frequency-dorsal-root-ganglion-stimulation-for-chronic-low-back-pain-a-pilot-study
#19
B Billet, K Hanssens, O De Coster, W Nagels, R L Weiner, R Wynendaele, N Vanquathem
OBJECTIVE: Evaluation of the efficacy of a wireless high-frequency stimulator placed over selected DRG of exiting nerve roots for the treatment of chronic low back pain. DESIGN: Feasibility. SUBJECTS: Six subjects with chronic, intractable back pain refractory to standard medical treatment. METHODS: Four stimulators (Freedom-4A) provided by Stimwave Technologies, were implanted over the DRG exiting nerve roots, bilaterally at both the T9 and L2 vertebral levels...
April 19, 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29497328/managing-cluster-headache-with-sphenopalatine-ganglion-stimulation-a-review
#20
REVIEW
Denys Fontaine, Serena Santucci, Michel Lanteri-Minet
Cluster headache (CH) is a primary headache and considered as one of the worst pains known to man. The sphenopalatine ganglion (SPG) plays a pivotal role in cranial autonomic symptoms associated with pain. Lesioning procedures involving the SPG and experimental acute SPG stimulation have shown some degree of efficacy with regard to CH. A neuromodulation device, chronically implanted in the pterygopalatine fossa, has been specifically designed for acute on-demand SPG stimulation. In a pilot placebo-controlled study in 28 patients suffering from refractory chronic CH, alleviation of pain was achieved in 67...
2018: Journal of Pain Research
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