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https://www.readbyqxmd.com/read/29345392/who-may-benefit-from-on-demand-control-of-deep-brain-stimulation-noninvasive-evaluation-of-parkinson-patients
#1
Daniel Graupe, Nivedita Khobragade, Daniela Tuninetti, Ishita Basu, Konstantin V Slavin, Leo Verhagen Metman
BACKGROUND: In closed-loop on-demand control (ODC) of deep brain stimulation (DBS), stimulation is applied only when symptoms appear. Following stimulation of a fixed duration, DBS is switched off until the symptoms reappear. By repeating these demand-driven cycles, the amount of stimulation delivered can be decreased, thereby reducing DBS side-effects and improving battery-life of the pulse-generator. This article introduces Ro metric for quantification of degree of benefit of ODC and explores candidate selection in tremor-dominant Parkinson's disease (PD)...
January 18, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29345124/disposable-morpho-menelaus-based-flexible-microfluidic-and-electronic-sensor-for-the-diagnosis-of-neurodegenerative-disease
#2
Zhenzhu He, Abdelrahman Elbaz, Bingbing Gao, Junning Zhang, Enben Su, Zhongze Gu
Rapid early disease prevention or precise diagnosis is almost impossible in low-resource settings. Natural ordered structures in nature have great potential for the development of ultrasensitive biosensors. Here, motivated by the unique structures and extraordinary functionalities of ordered structures in nature, a biosensor based on butterfly wings is presented. In this study, a flexible Morpho menelaus (M. menelaus) based wearable sensor is integrated with a microfluidic system and electronic networks to facilitate the diagnosis of neurodegenerative disease (ND)...
January 18, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29340932/robotic-scanning-device-for-intraoperative-thyroid-gland-endomicroscopy
#3
Haibo Wang, Shuxin Wang, Jinhua Li, Siyang Zuo
Probe-based confocal laser endomicroscopy has a high potential to be a promising tool that can provide intraoperative high-resolution in vivo morphological imaging at cellular and subcellular levels for thyroidectomy, and allow real-time assessment of tumor margins. However, the typical images acquired with this technique cover a very small area limited by the field of view of the probe, accompanied by tissue deformation and inconsistent probe-tissue contact when operated manually. In this paper, a novel compact robotic device for large area scanning has been developed...
January 16, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29340715/postural-control-and-the-relation-with-cervical-sensorimotor-control-in-patients-with-idiopathic-adult-onset-cervical-dystonia
#4
J De Pauw, R Mercelis, A Hallemans, G Van Gils, S Truijen, P Cras, W De Hertogh
Cervical dystonia (CD) is a movement disorder characterized by involuntary muscle contractions leading to an abnormal head posture or movements of the neck. Dysfunctions in somatosensory integration are present and previous data showed enlarged postural sway in stance. Postural control during quiet sitting and the correlation with cervical sensorimotor control were investigated. Postural control during quiet sitting was measured via body sway parameters in 23 patients with CD, regularly receiving botulinum toxin treatment and compared with 36 healthy controls...
January 16, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29339654/comparative-burden-of-subclinical-tremor-in-a-cohort-of-normal-individuals-stratified-by-familial-risk-for-essential-tremor
#5
Elan D Louis, James H Meyers, Olufunmilayo M Badejo, Ashley D Cristal, Ruby Hickman, Pam Factor-Litvak
BACKGROUND: The burden of mild (i.e., subclinical) tremor within essential tremor (ET) families is not fully understood. We assessed the burden of mild tremor in a cohort of 287 adults, none of whom reported tremor or were diagnosed with ET. METHODS: We recruited adults in 2 groups based on the familial risk for ET: 244 high-risk individuals (i.e., reporting one or more first-degree relative with ET) and 43 low-risk individuals (i.e., reporting no relatives with ET)...
January 16, 2018: Neuroepidemiology
https://www.readbyqxmd.com/read/29338380/transplantation-of-human-neural-progenitor-cells-reveals-structural-and-functional-improvements-in-the-spastic-han-wistar-rat-model-of-ataxia
#6
Ruslan L Nuryyev, Toni L Uhlendorf, Wesley Tierney, Suren Zatikyan, Oleg Kopyov, Alex Kopyov, Jessica Ochoa, William Van Trigt, Cindy S Malone, Randy W Cohen
The use of regenerative medicine to treat nervous system disorders like ataxia has been proposed to either replace or support degenerating neurons. In this study, we assessed the ability of human neural progenitor cells (hNPCs) to repair and restore the function of dying neurons within the spastic Han-Wistar rat (sHW), a model of ataxia. The sHW rat suffers from neurodegeneration of specific neurons, including cerebellar Purkinje cells and hippocampal CA3 pyramidal cells leading to the observed symptoms of forelimb tremor, hind-leg rigidity, gait abnormality, motor incoordination, and a shortened life span...
November 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29335882/clinical-response-to-vim-s-thalamic-stereotactic-radiosurgery-for-essential-tremor-is-associated-with-distinctive-functional-connectivity-patterns
#7
Constantin Tuleasca, Elena Najdenovska, Jean Régis, Tatiana Witjas, Nadine Girard, Jérôme Champoudry, Mohamed Faouzi, Jean-Philippe Thiran, Meritxell Bach Cuadra, Marc Levivier, Dimitri Van De Ville
INTRODUCTION: Essential tremor (ET) is the most common movement disorder. Drug-resistant ET can benefit from standard surgical stereotactic procedures (deep brain stimulation, thalamotomy) or minimally invasive high-intensity focused ultrasound (HIFU) or stereotactic radiosurgical thalamotomy (SRS-T). Resting-state fMRI (rs-fMRI) is a non-invasive imaging method acquired in absence of a task. We examined whether rs-fMRI correlates with tremor score on the treated hand (TSTH) improvement 1 year after SRS-T...
January 15, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29335862/rules-of-meridians-and-acupoints-selection-in-treatment-of-parkinson-s-disease-based-on-data-mining-techniques
#8
Zhe Li, Ying-Yu Hu, Chun-Ye Zheng, Qiao-Zhen Su, Chang An, Xiao-Dong Luo, Mao-Cai Liu
OBJECTIVE: To help selecting appropriate meridians and acupoints in clinical practice and experimental study for Parkinson's disease (PD), the rules of meridians and acupoints selection of acupuncture and moxibustion were analyzed in domestic and foreign clinical treatment for PD based on data mining techniques. METHODS: Literature about PD treated by acupuncture and moxibustion in China and abroad was searched and selected from China National Knowledge Infrastructure and MEDLINE...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29335358/sox2-is-essential-for-oligodendroglial-proliferation-and-differentiation-during-postnatal-brain-myelination-and-cns-remyelination
#9
Sheng Zhang, Xiaoqing Zhu, Xuehong Gui, Christopher Croteau, Lanying Song, Jie Xu, Aijun Wang, Peter Bannerman, Fuzheng Guo
In the central nervous system (CNS), myelination and remyelination depend on the successful progression and maturation of oligodendroglial lineage cells including proliferation and differentiation of oligodendroglial progenitor cells (OPCs). Previous studies have reported that Sox2 transiently regulates oligodendrocyte (OL) differentiation in the embryonic and perinatal spinal cord and appears dispensable for myelination in the postnatal spinal cord. However, the role of Sox2 in OL development in the brain has yet to be defined...
January 15, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29332087/adaptive-brain-stimulation-for-movement-disorders
#10
Martijn Beudel, Hayriye Cagnan, Simon Little
Deep brain stimulation (DBS) has markedly changed how we treat movement disorders including Parkinson's disease (PD), dystonia, and essential tremor (ET). However, despite its demonstrable clinical benefit, DBS is often limited by side effects and partial efficacy. These limitations may be due in part to the fact that DBS interferes with both pathological and physiological neural activities. DBS could, therefore, be potentially improved were it applied selectively and only at times of enhanced pathological activity...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332086/current-and-expected-advances-in-deep-brain-stimulation-for-movement-disorders
#11
Ausaf A Bari, Jasmine Thum, Diana Babayan, Andres M Lozano
Deep brain stimulation (DBS) has become an established treatment for medically refractory movement disorders including Parkinson's disease, essential tremor, and dystonia. The field of DBS continues to evolve with advances in patient selection, target identification, electrode and pulse generator technology, and the development of more effective stimulation paradigms such as closed-loop stimulation. Furthermore, as the safety and efficacy of DBS improves through better hardware design and deeper understanding of its mechanisms of action, the indications for DBS will continue to expand to cover a wider range of disorders...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332084/thalamic-deep-brain-stimulation
#12
Benjamin B Whiting, Alexander C Whiting, Donald M Whiting
The use of deep brain stimulation (DBS) of the thalamus has been proven to be a safe and efficacious treatment for the management of many diseases. The most common indication for thalamic DBS remains essential tremor (ET), one of the most common movement disorders in the world. ET patients should be considered for surgical intervention when their tremor has demonstrated to be refractory to medication, a characteristic estimated to be present in roughly 50% of ET cases. Advantages of DBS over thalamotomy include its reversibility, the ability to adjust stimulation settings to optimize efficacy and minimize side effects, the ability to perform bilateral procedures safely, and an association with a lower risk of postoperative cognitive problems...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332081/radiosurgical-subthalamic-nucleotomy
#13
Jean Régis, Romain Carron, Tatiana Witjas
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is the reference technique in Parkinson's disease (PD) at different stages of complications. Some patients cannot afford DBS due to anticoagulation or comorbidities or due to pecuniary reasons. Radiosurgery is a minimally invasive stereotactic technique, with no craniotomy and subsequently no risk of bleeding or infection. Its good safety efficacy profile has been established in the treatment of tremor, and the postoperative care issues are simple with a much shorter hospital stay (mean 48 h)...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332080/radiosurgical-pallidotomy-for-parkinson-s-disease
#14
Leslie D Cahan, Ronald F Young, Francisco Li
Deep brain stimulation (DBS) has been widely accepted as a tool for treating many symptoms of Parkinson's disease (PD); pallidotomy has been nearly abandoned. Concerns about both the safety and efficacy of pallidotomy are based on small series, isolated case reports, and techniques that would now be considered obsolete. The senior author recently reviewed long-term follow-up of a series of patients who had gamma knife pallidotomy (GKP) for advanced PD. GKP leads to durable, clinically significant benefit. Bilateral GKP adds incremental improvement...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332079/radiosurgical-thalamotomy
#15
Edward A Monaco Iii, Samuel S Shin, Ajay Niranjan, L Dade Lunsford
Tremor is a common movement disorder that can be disabling, and its initial treatment is in the form of medical therapies. Often patients are refractory and seek surgical intervention. Treatment options for these patients include surgical radiofrequency thalamotomy and deep brain stimulation. There are a subset of patients who, for various reasons, are not candidates for open surgical procedures, or who opt to avoid them. For these patients, radiosurgical thalamotomy is a safe and useful alternative. Herein, we provide a review of the use of radiosurgical thalamotomy for the treatment of medically refractory tremor by discussing its history, defining the technique and its indications, evaluating its efficacy, and exploring its complications and shortcomings...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332078/magnetic-resonance-guided-high-intensity-focused-ultrasound-for-treating-movement-disorders
#16
Young Goo Kim, Eun Jung Kweon, Won Seok Chang, Hyun Ho Jung, Jin Woo Chang
Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332077/stereotactic-radiofrequency-lesioning-for-movement-disorders
#17
Takaomi Taira, Shiro Horisawa, Nobuhiko Takeda, Prajakta Ghate
During the past 2 decades, deep brain stimulation (DBS) took over the position of radiofrequency (RF) lesioning of thalamic or pallidal targets for control of movement disorders. Superiority of DBS over RF lesioning is widely accepted, and most neurosurgeons even regard RF lesioning to be old-fashioned and dangerous. Such concepts emerged from the data of old stereotactic operations with ventriculography and without computerized planning. Hardware-related complications are not negligible in long-term DBS therapy, and DBS only controls the symptoms...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332076/image-guided-asleep-deep-brain-stimulation
#18
Andrew L Ko, Kim J Burchiel
Deep brain stimulation (DBS) has become an established treatment for medically refractory movement disorders including Parkinson's disease, essential tremor, and dystonia. The field of DBS continues to evolve with advances in patient selection, target identification, electrode and pulse generator technology, and the development of more effective stimulation paradigms such as closed-loop stimulation. Furthermore, as the safety and efficacy of DBS improves through better hardware design and deeper understanding of its mechanisms of action, the indications for DBS will continue to expand to cover a wider range of disorders...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332075/patient-evaluation-and-selection-for-movement-disorders-surgery-the-changing-spectrum-of-indications
#19
Steffen Paschen, Günther Deuschl
This report summarizes the state-of-the-art and controversies around patient selection for deep brain stimulation (DBS) for various conditions. Parkinson's disease (PD): several class I studies have shown superiority of DBS over best medical treatment for advanced PD with fluctuations and further inclusion criteria. One class I study suggests that PD patients with early motor complications might gain more quality of life if operated within 3 years after the onset of fluctuations. The subthalamic nucleus (STN) is still the standard target...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332072/medical-management-of-movement-disorders
#20
Marina Picillo, Renato P Munhoz
Pharmacological treatment is the cornerstone in the management of movement disorders. Although most available treatment options have no impact on the underlying process of each movement disorder, symptomatic therapies can significantly improve patient's quality of life and level of disability. Here, we review the current knowledge on clinical symptomatic management of Parkinson's disease (both early and advanced stages), essential tremor, dystonia, and chorea. Ideally, treatment should be carried out by specialists with reasonable experience in movement disorders, as it needs to be tailored for each patient depending on several appraisals, including but not limited to patients' needs, compliance issues, potential side effects, caregiver support, and presence of comorbidities...
2018: Progress in Neurological Surgery
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