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Parkinson's Disease, Deep brain stimulation

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https://www.readbyqxmd.com/read/27920671/proceedings-of-the-fourth-annual-deep-brain-stimulation-think-tank-a-review-of-emerging-issues-and-technologies
#1
Wissam Deeb, James J Giordano, Peter J Rossi, Alon Y Mogilner, Aysegul Gunduz, Jack W Judy, Bryan T Klassen, Christopher R Butson, Craig Van Horne, Damiaan Deny, Darin D Dougherty, David Rowell, Greg A Gerhardt, Gwenn S Smith, Francisco A Ponce, Harrison C Walker, Helen M Bronte-Stewart, Helen S Mayberg, Howard J Chizeck, Jean-Philippe Langevin, Jens Volkmann, Jill L Ostrem, Jonathan B Shute, Joohi Jimenez-Shahed, Kelly D Foote, Aparna Wagle Shukla, Marvin A Rossi, Michael Oh, Michael Pourfar, Paul B Rosenberg, Peter A Silburn, Coralie de Hemptine, Philip A Starr, Timothy Denison, Umer Akbar, Warren M Grill, Michael S Okun
This paper provides an overview of current progress in the technological advances and the use of deep brain stimulation (DBS) to treat neurological and neuropsychiatric disorders, as presented by participants of the Fourth Annual DBS Think Tank, which was convened in March 2016 in conjunction with the Center for Movement Disorders and Neurorestoration at the University of Florida, Gainesveille FL, USA. The Think Tank discussions first focused on policy and advocacy in DBS research and clinical practice, formation of registries, and issues involving the use of DBS in the treatment of Tourette Syndrome...
2016: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/27916831/long-term-task-and-dopamine-dependent-dynamics-of-subthalamic-local-field-potentials-in-parkinson-s-disease
#2
Sara J Hanrahan, Joshua J Nedrud, Bradley S Davidson, Sierra Farris, Monique Giroux, Aaron Haug, Mohammad H Mahoor, Anne K Silverman, Jun Jason Zhang, Adam Olding Hebb
Subthalamic nucleus (STN) local field potentials (LFP) are neural signals that have been shown to reveal motor and language behavior, as well as pathological parkinsonian states. We use a research-grade implantable neurostimulator (INS) with data collection capabilities to record STN-LFP outside the operating room to determine the reliability of the signals over time and assess their dynamics with respect to behavior and dopaminergic medication. Seven subjects were implanted with the recording augmented deep brain stimulation (DBS) system, and bilateral STN-LFP recordings were collected in the clinic over twelve months...
November 29, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27915226/subthalamic-nucleus-stimulation-and-gait-in-parkinson-s-disease-a-not-always-fruitful-relationship
#3
REVIEW
Giovanni Cossu, Massimiliano Pau
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) provides efficient treatment for the alleviation of motor signs in patients with advanced Parkinson's disease (PD), but its specific effects on gait is sometimes less successful as it may even lead to an aggravation of freezing of gait. To better understand when axial symptoms can be expected to improve and when they may worsen or be resistant to STN-DBS, we propose here a narrative review that considers the recent literature evidences based on instrumental gait analysis data...
November 27, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27913696/insights-gleaned-by-measuring-patients-stated-goals-for-dbs-more-than-tremor
#4
Cynthia S Kubu, Scott E Cooper, Andre Machado, Thomas Frazier, Jerrold Vitek, Paul J Ford
OBJECTIVE: To report prospective repeated measures data detailing the perceived benefit of deep brain stimulation (DBS) on the most commonly cited symptom and activity goals identified by patients with Parkinson disease. METHODS: Fifty-two participants were recruited from a consecutive series. Participants completed a semi-structured interview soliciting their symptom and behavioral goals and corresponding visual analog scales measuring perceived symptom severity and limits to goal attainment...
December 2, 2016: Neurology
https://www.readbyqxmd.com/read/27911344/patient-perspectives-on-deep-brain-stimulation-clinical-research-in-early-stage-parkinson-s-disease
#5
Lauren Heusinkveld, Mallory Hacker, Maxim Turchan, Madelyn Bollig, Christina Tamargo, William Fisher, Lauren McLaughlin, Adria Martig, David Charles
The FDA approved a multicenter, double-blind, Phase III, pivotal trial testing deep brain stimulation in 280 people with very early stage Parkinson's disease (PD; IDE#G050016). In partnership with The Michael J. Fox Foundation for Parkinson's Research, we conducted a survey to investigate motivating factors, barriers, and gender differences for participation in a trial testing DBS in early PD. The majority of survey respondents (72%) indicated they would consider learning more about participating. Men and women with early PD are likely to consider enrolling in trials of invasive therapies that may slow symptom progression and help future patients...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911008/comparison-of-neuropathology-in-parkinson-s-disease-subjects-with-and-without-deep-brain-stimulation
#6
Gian D Pal, Bichun Ouyang, Geidy Serrano, Holly A Shill, Christopher Goetz, Glenn Stebbins, Leo Verhagen Metman, Erika Driver-Dunckley, Shyamal H Mehta, John N Caviness, Marwan N Sabbagh, Charles H Adler, Thomas G Beach
BACKGROUND: The aim of this postmortem study was to compare, in Parkinson's disease subjects with and without bilateral subthalamic nucleus deep brain stimulation (STN-DBS), the loss of pigmented neurons within the substantia nigra and pathological alpha-synuclein density within the SN and other brain regions. METHODS: PD subjects were identified from the Arizona Study of Aging and Neurodegenerative Disorders database (STN-DBS = 11, non-DBS = 156). Pigmented neuron loss scores within the substantia nigra as well as alpha-synuclein density scores within the substantia nigra and 9 other brain regions were compared, the latter individually and in summary as the Lewy body brain load score...
December 2, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27906525/the-clinical-utility-of-qsm-disease-diagnosis-medical-management-and-surgical-planning
#7
REVIEW
Sarah Eskreis-Winkler, Yan Zhang, Jingwei Zhang, Zhe Liu, Alexey Dimov, Ajay Gupta, Yi Wang
Quantitative susceptibility mapping (QSM) is an MR technique that depicts and quantifies magnetic susceptibility sources. Mapping iron, the dominant susceptibility source in the brain, has many important clinical applications. Herein, we review QSM applications in the diagnosis, medical management, and surgical treatment of disease. To assist in early disease diagnosis, QSM can identify elevated iron levels in the motor cortex of amyotrophic lateral sclerosis patients, in the substantia nigra of Parkinson's disease (PD) patients, in the globus pallidus, putamen, and caudate of Huntington's disease patients, and in the basal ganglia of Wilson's disease patients...
December 1, 2016: NMR in Biomedicine
https://www.readbyqxmd.com/read/27897303/-pharmacoeconomic-study-of-the-treatment-of-advanced-parkinson-s-disease
#8
F Vivancos-Matellano, A J Garcia-Ruiz, N Garcia-Agua Soler
INTRODUCTION: When oral or transdermal drug therapy in Parkinson's disease becomes less effective, there are three therapies using assisted devices that can reduce motor and non-motor complications: subcutaneous apomorphine infusion pump (SAIP), continuous levodopa/carbidopa duodenal infusion (LDI) and deep brain stimulation (DBS). AIM: Conduct a comparative pharmacoeconomic analysis of the use of SAIP, with LDI and DBS. As a secondary objective arises discuss the profile of the ideal candidate for each of the technicals...
December 16, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27889627/subthalamic-oscillations-and-phase-amplitude-coupling-are-greater-in-the-more-affected-hemisphere-in-parkinson-s-disease
#9
Lauren A Shreve, Anca Velisar, Mahsa Malekmohammadi, Mandy Miller Koop, Megan Trager, Emma J Quinn, Bruce C Hill, Zack Blumenfeld, Camilla Kilbane, Alessandra Mantovani, Jaimie M Henderson, Helen Brontë-Stewart
OBJECTIVE: Determine the incidence of resting state oscillations in alpha/beta, high frequency (HFO) bands, and their phase amplitude coupling (PAC) in a large cohort in Parkinson's disease (PD). METHODS: Intra-operative local field potentials (LFPs) from subthalamic nucleus (STN) were recorded from 100 PD subjects, data from 74 subjects were included in the analysis. RESULTS: Alpha/beta oscillations were evident in >99%, HFO in 87% and PAC in 98% of cases...
November 10, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27876666/comparison-of-the-stereotactic-accuracies-of-function-guided-deep-brain-stimulation-calculated-using-multi-track-target-locations-geometrically-inferred-from-three-dimensional-trajectory-rotations-and-of-mri-guided-deep-brain-stimulation-and-outcomes
#10
Seong-Cheol Park, Chong Sik Lee, Seok Min Kim, Eu Jene Choi, Jung Kyo Lee
OBJECTIVE: In previous studies, multi-track trajectories in deep brain stimulation (DBS) have usually been approximated. Using a geometrically more accurate method, we compared the stereotactic accuracy of DBS with multi-track microelectrode recording and awake stimulation (Function-Group), and MRI-guided-DBS (MRI Group). METHODS: One hundred and seventy-two leads used in DBS between April 2014 and January 2016 were evaluated for stereotactic errors. Targets were the subthalamic nucleus (STN, 139 leads) or globus pallidus interna (GPi, 33 leads)...
November 19, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27875484/intraoperative-mania-during-deep-brain-stimulation-for-parkinson-disease
#11
Sudhir Venkataramaiah, Ravi Yadav, Dwarakanath Srinivas, Bhadrinarayan Varadarajan, Pramod Pal
No abstract text is available yet for this article.
November 21, 2016: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/27873569/establishing-a-standard-of-care-for-deep-brain-stimulation-centers-in-canada
#12
Michel Panisset, Marina Picillo, Nicolas Jodoin, Yu-Yan Poon, Alejandro Valencia-Mizrachi, Alfonso Fasano, Renato Munhoz, Christopher R Honey
During the "DBS Canada Day" symposium held in Toronto July 4-5, 2014, the scientific committee invited experts to share their knowledge regarding deep brain stimulation (DBS) management of movement disorders in three domains: (1) the programming algorithms, (2) the necessary team to run a neurosurgery program, and (3) the appropriate scales to better define in a more comprehensive fashion the effect of the brain surgery. Each presentation was followed by an open discussion, and this article reports on the conclusions of this meeting on these three questions...
November 22, 2016: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/27872585/the-pedunculopontine-tegmental-nucleus-as-a-motor-and-cognitive-interface-between-the-cerebellum-and-basal-ganglia
#13
REVIEW
Fumika Mori, Ken-Ichi Okada, Taishin Nomura, Yasushi Kobayashi
As an important component of ascending activating systems, brainstem cholinergic neurons in the pedunculopontine tegmental nucleus (PPTg) are involved in the regulation of motor control (locomotion, posture and gaze) and cognitive processes (attention, learning and memory). The PPTg is highly interconnected with several regions of the basal ganglia, and one of its key functions is to regulate and relay activity from the basal ganglia. Together, they have been implicated in the motor control system (such as voluntary movement initiation or inhibition), and modulate aspects of executive function (such as motivation)...
2016: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/27871439/corrigendum-to-mortality-of-advanced-parkinson-s-disease-patients-treated-with-deep-brain-stimulation-surgery-j-neurol-sci-369-230-235
#14
Sun Ju Chung
No abstract text is available yet for this article.
December 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27862290/comments-on-the-recent-viewpoint-article-on-low-frequency-deep-brain-stimulation-for-parkinson-s-disease
#15
Tao Xie, Un Jung Kang
No abstract text is available yet for this article.
November 10, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27862284/dystonia-deafness-syndrome-caused-by-a-%C3%AE-actin-gene-mutation-and-response-to-deep-brain-stimulation
#16
Hendriekje Eggink, Martje E van Egmond, Corien C Verschuuren-Bemelmans, Marleen C Schönherr, Tom J de Koning, D L Marinus Oterdoom, J Marc C van Dijk, Marina A J Tijssen
INTRODUCTION: Dystonia-deafness syndrome is a distinct clinical presentation within the dystonia-spectrum. Although several genetic and acquired causes have been reported, etiology remains unknown in the majority of patients. OBJECTIVES: To describe two patients with dystonia-deafness syndrome due to a beta-actin gene mutation. METHODS: We report on disease course, genetic testing, and management of 2 patients, mother and daughter, presenting with dystonia-deafness syndrome...
November 8, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27862267/spinal-cord-stimulation-improves-gait-in-patients-with-parkinson-s-disease-previously-treated-with-deep-brain-stimulation
#17
Carolina Pinto de Souza, Clement Hamani, Carolina Oliveira Souza, William Omar Lopez Contreras, Maria Gabriela Dos Santos Ghilardi, Rubens Gisbert Cury, Egberto Reis Barbosa, Manoel Jacobsen Teixeira, Erich Talamoni Fonoff
BACKGROUND: Deep brain stimulation and levodopatherapy ameliorate motor manifestations in Parkinson's disease, but their effects on axial signs are not sustained in the long term. OBJECTIVES: The objective of this study was to investigate the safety and efficacy of spinal cord stimulation on gait disturbance in advanced Parkinson's disease. METHODS: A total of 4 Parkinson's disease patients who experienced significant postural instability and gait disturbance years after chronic subthalamic stimulation were treated with spinal cord stimulation at 300 Hz...
November 10, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27860038/-i-m-worried-about-getting-water-in-the-holes-in-my-head-a-phenomenological-psychology-case-study-of-the-experience-of-undergoing-deep-brain-stimulation-surgery-for-parkinson-s-disease
#18
Virginia Eatough, Karen Shaw
OBJECTIVES: Deep brain stimulation (DBS) is a form of biotechnological surgery which has had considerable success for the motor improvement of Parkinson's disease and related disorders. Paradoxically, this observed motor improvement is not matched with improved psychosocial adjustment. This study contributes to a small but growing body of research aiming to understand this paradox. We conclude by discussing these aspects from a phenomenological and health psychology understanding of decision-making, human affectivity, and embodiment...
November 17, 2016: British Journal of Health Psychology
https://www.readbyqxmd.com/read/27844097/the-effects-of-unilateral-versus-bilateral-subthalamic-nucleus-deep-brain-stimulation-on-prosaccades-and-antisaccades-in-parkinson-s-disease
#19
Lisa C Goelz, Fabian J David, John A Sweeney, David E Vaillancourt, Howard Poizner, Leonard Verhagen Metman, Daniel M Corcos
Unilateral deep brain stimulation (DBS) of the subthalamic nucleus (STN) in patients with Parkinson's disease improves skeletomotor function assessed clinically, and bilateral STN DBS improves motor function to a significantly greater extent. It is unknown whether unilateral STN DBS improves oculomotor function and whether bilateral STN DBS improves it to a greater extent. Further, it has also been shown that bilateral, but not unilateral, STN DBS is associated with some impaired cognitive-motor functions. The current study compared the effect of unilateral and bilateral STN DBS on sensorimotor and cognitive aspects of oculomotor control...
November 14, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27843765/t2-relaxometry-predicts-outcome-of-dbs-in-idiopathic-parkinson-s-disease
#20
Tarja Lönnfors-Weitzel, Thilo Weitzel, Johannes Slotboom, Claus Kiefer, Claudio Pollo, Michael Schüpbach, Markus Oertel, Alain Kaelin, Roland Wiest
INTRODUCTION: Deep brain stimulation (DBS) nowadays is a well-established treatment of motor symptoms in Parkinson's disease. The subthalamic nucleus (STN) is a common target for DBS, because motor improvements have been shown to be superior to best medical therapy, if DBS electrodes have been appropriately positioned. DBS target identification can be assisted by MRI beyond structural imaging by spatially resolved measurement of T2-relaxation times (T2r). AIM: We pose the question, whether T2r of the STN is linked to the severity of the disease and whether outcome of DBS may be correlated to an asymmetric manifestation of the disease...
2016: NeuroImage: Clinical
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