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https://www.readbyqxmd.com/read/28698761/vagus-nerve-stimulation
#1
REVIEW
Hakan Ekmekçi, Hülagu Kaptan
BACKGROUND: The vagus nerve stimulation (VNS) is an approach mainly used in cases of intractable epilepsy despite all the efforts. Also, its benefits have been shown in severe cases of depression resistant to typical treatment. AIM: The aim of this study was to present current knowledge of vagus nerve stimulation. MATERIAL AND METHODS: A new value has emerged just at this stage: VNS aiming the ideal treatment with new hopes. It is based on the placement of a programmable generator on the chest wall...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28690686/vagus-nerve-stimulation-as-a-potential-adjuvant-to-behavioral-therapy-for-autism-and-other-neurodevelopmental-disorders
#2
REVIEW
Crystal T Engineer, Seth A Hays, Michael P Kilgard
BACKGROUND: Many children with autism and other neurodevelopmental disorders undergo expensive, time-consuming behavioral interventions that often yield only modest improvements. The development of adjunctive interventions that can increase the benefit of rehabilitation therapies is essential in order to improve the lives of individuals with neurodevelopmental disorders. MAIN TEXT: Vagus nerve stimulation (VNS) is an FDA approved therapy that is safe and effective in reducing seizure frequency and duration in individuals with epilepsy...
2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28689344/neurological-results-of-the-modified-treatment-of-epilepsy-by-stimulation-of-the-vagus-nerve
#3
Michael Vaiman, Eli Heyman, Gad Lotan
INTRODUCTION: The vagus nerve stimulation (VNS) is used for treatment of drug-resistant epilepsy but laryngeal side effects are common. We tried to improve VNS by modifying the implantation procedure. The aim was to reduce the rate of side effects that have prevented using VNS to its full capacity. METHODS: We operated on 74 pediatric patients for VNS device implantation using a modified surgical protocol incorporating lower neck incision for electrode placement and 36 patients who were operated by standard technique were used for control group...
July 8, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28666193/efficacy-of-adjunctive-vagus-nerve-stimulation-in-patients-with-dravet-syndrome-a-meta-analysis-of-68-patients
#4
REVIEW
Maxine Dibué-Adjei, Igor Fischer, Hans-Jakob Steiger, Marcel Alexander Kamp
RATIONALE: Dravet Syndrome (DS) is a severe epileptic encephalopathy of childhood involving intractable seizures, recurrent status epilepticus and cognitive decline. Because DS is a rare disease, available data is limited and evidence-based treatment guidelines are lacking. Vagus nerve stimulation (VNS) is an established neurostimulation treatment for intractable epilepsy, however little evidence is published on its efficacy in patients with DS. METHODS: We performed a meta-analysis of all peer-reviewed English language studies reporting seizure outcomes of patients with DS treated with adjunctive vagus nerve stimulation...
June 17, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28651170/an-analysis-of-quality-of-life-qol-in-patients-with-epilepsy-and-comorbid-psychogenic-nonepileptic-seizures-pnes-after-vagus-nerve-stimulation-vns
#5
Andrew C Vivas, Christian J Reitano, Hena Waseem, Selim R Benbadis, Fernando L Vale
PURPOSE: Patients with epilepsy (PWE) may suffer from comorbid psychogenic nonepileptic seizures (PNES). The efficacy of vagus nerve stimulation (VNS) in the treatment of epilepsy and depression is established, however the impact on PNES is unknown. Since many patients with PNES have comorbid depression, we explored the impact on quality of life (QOL) that VNS has on PWE and PNES. METHODS: The video electroencephalogram (vEEG) of all patients who underwent VNS at our institution was reviewed...
June 23, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28651125/online-patient-information-on-vagus-nerve-stimulation-how-reliable-is-it-for-facilitating-shared-decision-making
#6
Ronak Ved, Naomi Cobbold, Kueni Igbagiri, Mark Willis, Paul Leach, Malik Zaben
PURPOSE: This study evaluates the quality of information available on the internet for carers of children with epilepsy considering treatment with Vagus Nerve Stimulation (VNS). METHODS: Selected key phrases were entered into two popular search engines (Google™, Yahoo™). These phrases were: "Vagus nerve stimulator", alone and in combination with "childhood epilepsy", "paediatric epilepsy" and "epilepsy in childhood"; "VNS", and "VNS epilepsy". The first 50 hits per search were then screened...
June 15, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28619068/late-onset-jaw-and-teeth-pain-mimicking-trigeminal-neuralgia-associated-with-chronic-vagal-nerve-stimulation-case-series-and-review-of-the-literature
#7
Gabriela Timarova, Andrej Šteňo
BACKGROUND: Vagal nerve stimulation (VNS) for refractory epilepsy is well established. Trigeminal neuralgia itself is a common disease in adults, and thus, late-onset pain in the trigeminal region under VNS, which is extremely rare, may not be recognized as caused by VNS. CASE PRESENTATION: Two patients with drug-resistant symptomatic epilepsy treated with chronic VNS experienced stimulation-related pain in the lower and upper jaw and teeth on the side of stimulation...
June 15, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28566195/parenting-stress-in-parents-of-children-with-refractory-epilepsy-before-and-after-vagus-nerve-stimulation-implantation
#8
Sung-Tse Li, Nan-Chang Chiu, Yung-Ting Kuo, Ein-Yiao Shen, Pei-Chieh Tsai, Che-Sheng Ho, Wen-Hsiang Wu, Juei-Chao Chen
OBJECTIVES: The purpose of this study was to evaluate parenting stress in parents of children with refractory epilepsy before and after their children received vagus nerve stimulation (VNS) implantation. METHODS: Parents of children with refractory epilepsy completed the Parenting Stress Index (PSI) under a psychologist's assessment before and at least 12 months after their children received VNS implantation. The PSI questionnaire measures parenting stress in two domains; a parent domain with seven subscales, and a child domain with six...
May 17, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28560798/vns-and-pregnancy-a-multicentric-experience-of-four-cases
#9
X Rodríguez-Osorio, F J López-González, Í Garamendi, J Rumià, A Matute, Á Prieto-González, M Carreño
BACKGROUND: Vagus nerve stimulation system (VNS) has been employed worldwide as adjunctive therapy in drug-resistant epileptic patients. Only nine previous pregnancies with six-positive outcomes have been reported in women with epilepsy treated with VNS since 1998. AIMS OF THE STUDY: To communicate the experience of pregnancies in women treated with VNS in our country. METHODS: Clinical data of four female patients treated with VNS during pregnancy and delivery in five gestations is described...
May 31, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28492363/vagus-nerve-stimulation-improves-working-memory-performance
#10
Lihua Sun, Jari Peräkylä, Katri Holm, Joonas Haapasalo, Kai Lehtimäki, Keith H Ogawa, Jukka Peltola, Kaisa M Hartikainen
Vagus nerve stimulation (VNS) is used for treating refractory epilepsy and major depression. While the impact of this treatment on seizures has been established, its impact on human cognition remains equivocal. The goal of this study is to elucidate the immediate effects of vagus nerve stimulation on attention, cognition, and emotional reactivity in patients with epilepsy. Twenty patients (12 male and 8 female; 45 ± 13 years old) treated with VNS due to refractory epilepsy participated in the study. Subjects performed a computer-based test of executive functions embedded with emotional distractors while their brain activity was recorded with electroencephalography...
February 19, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28476920/clinically-styled-vagus-nerve-stimulation-augments-spontaneous-discharge-in-second-and-higher-order-sensory-neurons-in-rat-nucleus-of-the-solitary-tract
#11
Eric Beaumont, Regenia B Phillips Campbell, Michael C Andresen, Stephanie Lc Scofield, Krishna Singh, Imad Libbus, Bruce H KenKnight, Logan Snyder, Nathan Cantrell
Vagus nerve stimulation (VNS) currently treats patients with drug resistant epilepsy, depression and heart failure. The mild intensities used in chronic VNS suggest that primary visceral afferents and central nervous system activation are involved. Here we measured the activity of neurons in the nucleus of the solitary tract (NTS) in anesthetized rats using clinically-styled VNS. Our chief findings indicate that VNS at threshold bradycardic intensity activated NTS neuron discharge in one third of NTS neurons...
May 5, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28440954/heart-rate-variability-indices-as-predictors-of-the-response-to-vagus-nerve-stimulation-in-patients-with-drug-resistant-epilepsy
#12
Hongyun Liu, Zhao Yang, Lei Huang, Wei Qu, Hongwei Hao, Luming Li
OBJECTIVE: To assess heart-rate variability (HRV) measures of interictal electrocardiography (ECG) for drug-resistant epilepsy and to relate the findings to the outcome of vagus nerve stimulation (VNS) treatment. METHODS: Time-domain, frequency-domain, and nonlinear analyses were used to analyze preoperative HRV measures in 32 patients with drug-resistant epilepsy who had received VNS implants at the same hospital and 32 healthy age- and sex-matched control subjects...
June 2017: Epilepsia
https://www.readbyqxmd.com/read/28431290/predicting-success-of-vagus-nerve-stimulation-vns-from-eeg-symmetry
#13
REVIEW
Janneke Hilderink, Marleen C Tjepkema-Cloostermans, Anita Geertsema, Janita Glastra-Zwiers, Cecile C de Vos
PURPOSE: Vagus nerve stimulation (VNS) has shown to be an effective treatment for drug resistant epilepsy, with achieving more than 50% seizure reduction in one third of the treated patients. In order to predict which patients will profit from VNS, we previously found that a low pairwise derived Brain Symmetry Index (pdBSI) could potentially predict good responders to VNS treatment. These findings however have to be validated before they can be generalized. METHODS: 39 patients (age 18-68 years) with medically intractable epilepsy who were referred for an implanted VNS system were included...
April 4, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28414968/investigating-the-correlation-between-short-term-effectiveness-of-vns-therapy-in-reducing-the-severity-of-seizures-and-long-term-responsiveness
#14
Maryam Ravan
VNS (Vagus Nerve Stimulation) Therapy(®) is an adjunctive therapy for patients with medically refractory epilepsy. The primary metric used to assess response to any treatment for epilepsy is seizure frequency reduction as measured using seizure diaries. In addition to seizure frequency, reduction in seizure severity is clinically meaningful to patients and can be measured objectively. Analysis of electro-encephalographic (EEG) signals has revealed that seizures are accompanied by spatial synchronization of EEG electrodes that may persist for several minutes after the seizure...
July 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28410885/successful-implantation-and-immediate-activation-of-vagus-nerve-stimulation-vns-during-pregnancy-in-a-patient-with-intractable-epilepsy-a-case-illustration-and-review-of-the-literature
#15
N Jazebi, N Moghimi, R Lall, E Osadebey, J Ortega-Barnett, T Masel
While Vagus Nerve Stimulation (VNS) is proven to be a safe and effective adjunctive therapy in the general population with medically intractable seizures, little is published about its implantation during pregnancy. Here we illustrate the case of a 21year old primigravid woman with medically refractory seizures who underwent safe and successful VNS implantation and immediate activation of the device in her 32nd week of pregnancy, resulting in dramatically improved seizure control and subsequent delivery of a healthy baby...
August 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28390806/the-vagal-nerve-stimulation-outcome-and-laryngeal-effect-otolaryngologists-roles-and-perspective
#16
Ahmad I Al Omari, Firas Q Alzoubi, Mohammad M Alsalem, Samah K Aburahma, Diala T Mardini, Paul F Castellanos
INTRODUCTION: Epilepsy is one of the most common neurologic disorders. Vagus nerve stimulation (VNS), first investigated in 1938 and subsequently studied as a potential therapy for epilepsy. The FDA approved the use of VNS in 1997 as an adjunctive non-pharmacologic symptomatic treatment option for refractory epilepsy for adults and adolescents over 12years. VNS can cause laryngeal and voice side effects that can be managed by otolaryngologists safely and effectively. OBJECTIVES: This study is to review the outcomes of vagal nerve stimulator (VNS) implantation in terms of the surgical procedures, complications, seizure frequency, and the clinical effect on larynx and vocal folds motion...
April 4, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28386925/vagus-nerve-stimulation-surgical-technique-of-implantation-and-revision-and-related-morbidity
#17
REVIEW
Flavio Giordano, Anna Zicca, Carmen Barba, Renzo Guerrini, Lorenzo Genitori
Indications for vagus nerve stimulation (VNS) therapy include focal, multifocal epilepsy, drop attacks (tonic/atonic seizures), Lennox-Gastaut syndrome, tuberous sclerosis complex (TSC)-related multifocal epilepsy, and unsuccessful resective surgery. Surgical outcome is about 50-60% for seizures control, and may also improve mood, cognition, and memory. On this basis, VNS has also been proposed for the treatment of major depression and Alzheimer's' disease. The vagus nerve stimulator must be implanted with blunt technique on the left side to avoid cardiac side effects through the classic approach for anterior cervical discectomy...
April 2017: Epilepsia
https://www.readbyqxmd.com/read/28320117/use-of-social-media-to-assess-the-effectiveness-of-vagal-nerve-stimulation-in-dravet-syndrome-a-caregiver-s-perspective
#18
Rushna Ali, Mona Elsayed, Manpreet Kaur, Ellen Air, Naznin Mahmood, Jules Constantinou, Jason Schwalb
BACKGROUND: Dravet syndrome (DS) is a rare genetic epilepsy syndrome which is particularly pharmacoresistant. Vagus nerve stimulation (VNS) is commonly used in the treatment of DS as an adjunct to medical therapy. A meaningful assessment of post-surgical outcomes with VNS is difficult given the rarity of the condition. OBJECTIVE: In a novel approach, we used social media to contact patients with DS to gather data on post-surgical seizure reduction and overall satisfaction with VNS...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28298036/efficacy-and-safety-of-corpus-callosotomy-after-vagal-nerve-stimulation-in-patients-with-drug-resistant-epilepsy
#19
Jennifer Hong, Atman Desai, Vijay M Thadani, David W Roberts
OBJECTIVE Vagal nerve stimulation (VNS) and corpus callosotomy (CC) have both been shown to be of benefit in the treatment of medically refractory epilepsy. Recent case series have reviewed the efficacy of VNS in patients who have undergone CC, with encouraging results. There are few data, however, on the use of CC following VNS therapy. METHODS The records of all patients at the authors' center who underwent CC following VNS between 1998 and 2015 were reviewed. Patient baseline characteristics, operative details, and postoperative outcomes were analyzed...
March 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28268683/effect-of-vagus-nerve-stimulation-on-neural-adaptation-in-thalamo-cortical-system-in-rats
#20
Tomoyo I Shiramatsu, Rie Hitsuyu, Kenji Ibayashi, Ryohei Kanzaki, Kensuke Kawai, Hirokazu Takahashi
Vagus nerve stimulation (VNS) is a therapy on medically refractory epilepsy, and recently reported to improve cognitive function including learning and memory. The thalamo-cortical system may underlie such VNS-induced cognitive improvements. Thus, the present study targeted the auditory cortex and thalamus in rats, and investigated whether and how VNS modulates stimulus-specific adaptation (SSA) of the neural activity in these nuclei. A depth electrode array recorded auditory evoked potentials from the auditory thalamus and cortex under an oddball paradigm either with or without VNS...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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