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Vagus Nerve Stimulation

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Transcutaneous Vagus Nerve Stimulation in Patients With Severe Traumatic Brain Injury: A Feasibility Trial.

Jakob Hakon, Melika Moghiseh, Ingrid Poulsen, Christoffer M L Øland, Christian P Hansen, Anne Sabers,

OBJECTIVES:Preclinical studies have shown that surgically implanted vagus nerve stimulation (VNS) promotes recovery of consciousness and cognitive function following experimental traumatic brain injury (TBI). The aim of this study is to report the feasibility and safety of a noninvasive transcutaneous vagus nerve stimulation (tVNS) in patients with persistent impairment of ... Read more >>

Neuromodulation (Neuromodulation : journal of the International Neuromodulation Society)
[2020, :]

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Acute Cardiovascular Responses to Vagus Nerve Stimulation after Experimental Spinal Cord Injury.

Rahul Sachdeva, Andrei V Krassioukov, Jesse E Bucksot, Seth A Hays,

Pairing vagus nerve stimulation (VNS) with rehabilitation has emerged as a potential strategy to enhance plasticity and improve recovery in a range of neurological disorders. A recent study highlights the therapeutic promise of VNS in promoting motor recovery after spinal cord injury (SCI). We investigated the safety of acute VNS ... Read more >>

J. Neurotrauma (Journal of neurotrauma)
[2020, :]

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Moving beyond belief: A narrative review of potential biomarkers for transcutaneous vagus nerve stimulation.

Andreas Michael Burger, Martina D'Agostini, Bart Verkuil, Ilse Van Diest,

Transcutaneous vagus nerve stimulation (tVNS) is a non-invasive neurostimulation technique that is currently being tested as a potential treatment for a myriad of neurological and psychiatric disorders. However, the working mechanisms underlying tVNS are poorly understood and it remains unclear whether stimulation activates the vagus nerve for every participant. Finding ... Read more >>

Psychophysiology (Psychophysiology)
[2020, :e13571]

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A literature review on the neurophysiological underpinnings and cognitive effects of transcutaneous vagus nerve stimulation: challenges and future directions.

Lorenza Colzato, Christian Beste,

Brain stimulation approaches are important to gain causal mechanistic insights into the relevance of functional brain regions and/or neurophysiological systems for human cognitive functions. In recent years, transcutaneous vagus nerve stimulation (tVNS) has attracted considerable popularity. It is a noninvasive brain stimulation technique based on the stimulation of the vagus ... Read more >>

J. Neurophysiol. (Journal of neurophysiology)
[2020, :]

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Chronic vagus nerve stimulation for drug-resistant epilepsy influences fasting blood glucose concentration

Fangang Meng, Weidong Wang, Hongyun Liu, Ping Zhan,

<title>Abstract</title> <p> Background Cervical vagus nerve stimulation (VNS) has been widely accepted as adjunctive therapy for drug-resistant epilepsy and major depression. Its effects on glycemic control in humans were however poorly understood. The aim of our study was to investigate the potential effects of VNS on fasting blood ... Read more >>

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Continuous Neural Monitoring in Endoscopic Thyroidectomy: Feasibility Experimental Study for Transcutaneous Vagal Nerve Stimulation.

Yishen Zhao, Changlin Li, Daqi Zhang, Shijie Li, Tie Wang, Gianlorenzo Dionigi, Hui Sun,

Background: Adoption of continuous intraoperative neural monitoring (C-IONM) in endoscopic thyroid surgery is limited due to the uneasy application of C-IONM electrode. Feasibility for transcutaneous vagal nerve stimulation was tested. Materials and Methods: Vagus nerve (VN) and recurrent laryngeal nerve (RLN) were mapped and stimulated in different neck sites by ... Read more >>

J Laparoendosc Adv Surg Tech A (Journal of laparoendoscopic & advanced surgical techniques. Part A)
[2020, :]

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Sensitivity Study of Neuronal Excitation and Cathodal Blocking Thresholds of Myelinated Axons for Percutaneous Auricular Vagus Nerve Stimulation.

Tom Van de Steene, Emmeric Tanghe, Thomas Tarnaud, Stefan Kampusch, Eugenijus Kaniusas, Luc Martens, Roel Van Holen, Wout Joseph,

OBJECTIVE:Excitation of myelinated nerve fibers is investigated by means of numerical simulations, for the application of percutaneous auricular vagus nerve stimulation (pVNS). High sensitivity to axon diameter is of interest regarding the goal of targeting thicker fibers. METHODS:Excitation and blocking thresholds for different pulse types, phase durations, axon depths, axon-electrode ... Read more >>

IEEE Trans Biomed Eng (IEEE transactions on bio-medical engineering)
[2020, :]

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Transcutaneous Auricular Vagus Nerve Stimulation-Paired Rehabilitation for Oromotor Feeding Problems in Newborns: An Open-Label Pilot Study.

Bashar W. Badran, Dorothea D. Jenkins, Daniel Cook, Sean Thompson, Morgan Dancy, William H. DeVries, Georgia Mappin, Philipp Summers, Marom Bikson, Mark S. George,

Neonates born premature or who suffer brain injury at birth often have oral feeding dysfunction and do not meet oral intake requirements needed for discharge. Low oral intake volumes result in extended stays in the hospital (>2 months) and can lead to surgical implant and explant of a gastrostomy tube ... Read more >>

Front Hum Neurosci (Frontiers in human neuroscience)
[2020, 14:]

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Vagus nerve stimulation in pediatric patients with failed epilepsy surgery.

Jeng-Dau Tsai, Pi-Chuan Fan, Wang-Tso Lee, Pi-Lien Hung, Kun-Long Hung, Huei-Shyong Wang, Kuang-Lin Lin, ,

Adequate control of pharmacoresistant epilepsy continues to be a challenge. Multiple studies have reported the benefits of epilepsy surgery and vagus nerve stimulation for children with pharmacoresistant epilepsy. Little is known about the role of vagus nerve stimulation for children with failed epilepsy surgeries. The aim of this study was ... Read more >>

Acta Neurol Belg (Acta neurologica Belgica)
[2020, :]

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Cervical Noninvasive Vagus Nerve Stimulation for Migraine and Cluster Headache: A Systematic Review and Meta-Analysis.

Yin-Hsuan Lai, Yu-Chen Huang, Liang-Ti Huang, Ruei-Ming Chen, Chiehfeng Chen,

BACKGROUND:Noninvasive vagus nerve stimulation (nVNS) has been proposed as a new neuromodulation therapy to treat primary headache disorders. The purpose of this study was to analyze the effectiveness and safety of peripheral nerve stimulation of the cervical branch of the vagal nerve for primary headache disorders. METHODS:A systematic review and ... Read more >>

Neuromodulation (Neuromodulation : journal of the International Neuromodulation Society)
[2020, :]

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Automatic Detection of Target Engagement in Transcutaneous Cervical Vagal Nerve Stimulation for Traumatic Stress Triggers.

Nil Z Gurel, Matthew T Wittbrodt, Hewon Jung, Stacy L Ladd, Amit J Shah, Viola Vaccarino, J Douglas Bremner, Omer Inan,

Transcutaneous cervical vagal nerve stimulation (tcVNS) devices are attractive alternatives to surgical implants, and can be applied for a number of conditions in ambulatory settings, including stress-related neuropsychiatric disorders. Transferring tcVNS technologies to at-home settings brings challenges associated with the assessment of therapy response. The ability to accurately detect whether ... Read more >>

IEEE J Biomed Health Inform (IEEE journal of biomedical and health informatics)
[2020, :]

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Adjunctive Vagus Nerve Stimulation for Treatment-Resistant Depression: a Quantitative Analysis.

Xun Zhang, Ming-Jun Qing, Ying-Hua Rao, Yan-Mei Guo,

Vagus nerve stimulation (VNS) has been increasingly studied in treating treatment-resistant depression (TRD), but the findings have been mixed. This updated meta-analysis was conducted to examine the efficacy and safety of adjunctive VNS for TRD. Controlled studies reporting on the efficacy and safety of adjunctive VNS for TRD were screened, ... Read more >>

Psychiatr Q (The Psychiatric quarterly)
[2020, :]

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Acupuncture stimulation attenuates TNF-α production via vagal modulation in the concanavalin A model of hepatitis.

Hee-Don Lim, Ki-Joong Kim, Byung Gon Jo, Ji-Yeun Park, Uk Namgung,

BACKGROUND:A growing body of evidence shows that neuronal activity is involved in modulating the efficacy of acupuncture therapy. However, it has been seldom investigated whether neuronal activity following acupuncture stimulation is effective at regulating hepatic inflammation. OBJECTIVE:Using the concanavalin A (ConA) model of hepatitis, we investigated the regulation of inflammatory ... Read more >>

Acupunct Med (Acupuncture in medicine : journal of the British Medical Acupuncture Society)
[2020, :964528420907338]

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The Impact of Auricular Vagus Nerve Stimulation on Pain and Life Quality in Patients with Fibromyalgia Syndrome.

Nazlı Kutlu, Ali Veysel Özden, Hasan Kerem Alptekin, Jülide Öncü Alptekin,

The purpose of this study is to evaluate the impact of auricular vagus nerve stimulation, applied in conjunction with an exercise treatment program, on pain and life quality in patients with fibromyalgia syndrome (FMS). To achieve the study objectives, 60 female patients between the ages 18 and 50, with diagnosed ... Read more >>

Biomed Res Int (BioMed Research International)
[2020, 2020:8656218]

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Life-threatening secondary hemophagocytic lymphohistiocytosis following vagal nerve stimulator infection in a child with CHD2 myoclonic encephalopathy: a case report.

Cristiano Parisi, Santiago Candela-Cantó, Mercedes Serrano, Albert Catala, Javier Aparicio, José Hinojosa,

Vagus nerve stimulation (VNS) is a surgical treatment available for patients affected by generalized refractory epilepsy. The authors report the case of a 15-year-old girl affected by CHD2-related myoclonic encephalopathy and BLM haploinsufficiency due to a deletion of 15q25.3q26.2 region, who suffered from secondary hemophagocytic lymphohistiocytosis (SHLH) after a VNS ... Read more >>

Childs Nerv Syst (Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery)
[2020, :]

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Vagus nerve stimulation inhibits cortical spreading depression exclusively through central mechanisms.

Andreia Morais, Tzu-Ting Liu, Tao Qin, Homa Sadhegian, Ilknur Ay, Damla Yagmur, Rosangela Mendes da Silva, David Chung, Bruce Simon, Rubem Guedes, Shih-Pin Chen, Shuu-Jiun Wang, Jiin-Cherng Yen, Cenk Ayata,

Experimental and clinical data strongly support vagus nerve stimulation (VNS) as a novel treatment in migraine. Vagus nerve stimulation acutely suppresses cortical spreading depression (CSD) susceptibility, an experimental model that has been used to screen for migraine therapies. However, mechanisms underlying VNS efficacy on CSD are unknown. Here, we interrogated ... Read more >>

Pain (Pain)
[2020, :]

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The Instant Spontaneous Neuronal Activity Modulation of Transcutaneous Auricular Vagus Nerve Stimulation on Patients With Primary Insomnia.

Bin Zhao, Yanzhi Bi, Liang Li, Jinling Zhang, Yang Hong, Lei Zhang, Jiakai He, Jiliang Fang, Peijing Rong,

Primary insomnia (PI) is associated with increased spontaneous neuronal activity. Transcutaneous auricular vagus nerve stimulation (taVNS) modulates brain function, and it is an effective treatment for primary insomnia. However, whether taVNS alleviates insomnia through modulating spontaneous neuronal activity is not fully clarified. This study aims to investigate the instant effect ... Read more >>

Front Neurosci (Frontiers in neuroscience)
[2020, 14:205]

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Risk factors and results of hemispherotomy reoperations in children.

Marcelo Volpon Santos, Thiago Lyrio Teixeira, Enrico Salomao Ioriatti, Ursula Thome, Ana Paula de Andrade Hamad, Helio Rubens Machado,

OBJECTIVE:The goal of this study was to perform an analysis of a single-center experience with hemispherotomy reoperations for refractory hemispheric pediatric epilepsy due to persistence of seizures after initial surgery. The authors also identify possible anatomical and neurophysiological reasons for hemispherotomy failure, as well as risk factors and surgical options ... Read more >>

Neurosurg Focus (Neurosurgical focus)
[2020, 48(4):E5]

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Functional vagotopy in the cervical vagus nerve of the domestic pig: Implications for the study of vagus nerve stimulation.

Megan Settell, Nicole A Pelot, Bruce E Knudsen, Aaron M Dingle, Andrea L McConico, Evan N Nicolai, James K Trevathan, J Ashley Ezzell, Erika K Ross, Kenneth J Gustafson, Andrew Shoffstall, Justin C Williams, Weifeng Zeng, Samuel O Poore, Luis C Populin, Aaron Suminski, Warren M Grill, Kip Ludwig,

OBJECTIVE:Given current clinical interest in vagus nerve stimulation (VNS), there are surprisingly few studies characterizing the anatomy of the vagus nerve in large animal models as it pertains to on-and off-target engagement of local fibers. We sought to address this gap by evaluating vagal anatomy in the pig, whose vagus ... Read more >>

J Neural Eng (Journal of neural engineering)
[2020, :]

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Predictors of seizure outcome for vagus nerve stimulation in children

Ji Hoon Phi, Jeyul Yang, Seung‐Ki Kim, Ki Joong Kim, Jong Hee Chae, Byung Chan Lim,

<title>Abstract</title> <p> Purpose Vagus nerve stimulation (VNS) is a palliative treatment for intractable epilepsy. While the expected outcome of VNS is well known, the clinical predictors of outcome are not clearly defined. We investigated the predictors and seizure reduction rates of VNS in pediatric patients. Methods We retrospectively ... Read more >>

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Auricular Intradermal Acupuncture as a Supplementary Motor Rehabilitation Strategy in Poststroke Patients: A Randomized Preliminary Clinical Study.

Dan Miao, Kuok-Tong Lei, Jing-Feng Jiang, Xin-Jun Wang, Hong Wang, Xiao-Ru Liu, Jia-Jia Zhang, Jia-Wei Xiong,

We have explored the potential of auricular intradermal acupuncture (AIA) in standard rehabilitation and acupuncture treatment for motor recovery in poststroke patients. This was a randomized, controlled preliminary clinical study in which the patients were randomly assigned to the CT group (conventional treatment, standard rehabilitation, and routine acupuncture) or AIA ... Read more >>

Evid Based Complement Alternat Med (Evidence-based Complementary and Alternative Medicine : eCAM)
[2020, 2020:]

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MicroCT optimisation for imaging fascicular anatomy in peripheral nerves.

Nicole Thompson, Enrico Ravagli, Svetlana Mastitskaya, Francesco Iacoviello, Kirill Aristovich, Justin Perkins, Paul R Shearing, David Holder,

BACKGROUND:Due to the lack of understanding of the fascicular organisation, vagus nerve stimulation (VNS) leads to unwanted off-target effects. Micro-computed tomography (microCT) can be used to trace fascicles from periphery and image fascicular anatomy. NEW METHOD:In this study, we present a simple and reproducible method for imaging fascicles in peripheral ... Read more >>

J. Neurosci. Methods (Journal of neuroscience methods)
[2020, 338:108652]

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Effects and Mechanisms of Vagal Nerve Stimulation on Body Weight in Diet-Induced Obese Rats.

Fei Dai, Jieyun Yin, Jiande D Z Chen,

BACKGROUND:Vagal nerve stimulation (VNS) has recently been indicated as a novel method for treating obesity. However, the optimal stimulation parameters were unknown and mechanisms were poorly understood. The aim of this study was to investigate the effects of VNS on food intake and body weight in diet-induced obesity (DIO) rats ... Read more >>

Obes Surg (Obesity surgery)
[2020, 30(3):948-956]

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Probable Mechanism of Antiepileptic Effect of the Vagus Nerve Stimulation in the Context of the Recent Results in Sleep Research.

Ivan N Pigarev, Marina L Pigareva, Ekaterina V Levichkina,

Front Neurosci (Frontiers in Neuroscience)
[2020, 14:160]

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A121 SILENCING ENTERIC SENSORY NEURONS ABOLISHES THE EXCITATORY EFFECT OF SERTRALINE ON VAGAL AFFERENTS.

C West, A Stanisz, J Bienenstock, W A Kunze,

AbstractBackgroundTwo thirds of vagal afferents supplying the small intestine terminate on intrinsic primary afferent neurons (IPANs) of the enteric nervous system via intraganglionic laminar endings (IGLEs) rather than the luminal epithelium (FASEB J, 28, 3064–3074, 2014). The IPAN to IGLE connection forms a functional intramural sensory synapse within the myenteric ... Read more >>

J Can Assoc Gastroenterol (Journal of the Canadian Association of Gastroenterology)
[2020, 3(Suppl 1):141-142]

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