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Thalamotomy

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https://www.readbyqxmd.com/read/28195357/one-step-backward-magnetic-resonance-guided-focused-ultrasound-thalamotomy-for-the-treatment-of-medically-refractory-tremor
#1
Ron L Alterman
No abstract text is available yet for this article.
February 13, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28175402/132%C3%A2-a-randomized-sham-controlled-trial-of-transcranial-magnetic-resonance-guided-focused-ultrasound-thalamotomy-trial-for-the-treatment-of-tremor-dominant-idiopathic-parkinson-disease
#2
Aaron E Bond, Robert Dallapiazza, Diane Huss, Amy L Warren, Scott Sperling, Ryder Gwinn, Binit B Shah, W Jeffrey Elias
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28124434/speech-and-language-adverse-effects-after-thalamotomy-and-deep-brain-stimulation-in-patients-with-movement-disorders-a-meta-analysis
#3
REVIEW
Soha Alomar, Nicolas K K King, Joseph Tam, Ausaf A Bari, Clement Hamani, Andres M Lozano
BACKGROUND: The thalamus has been a surgical target for the treatment of various movement disorders. Commonly used therapeutic modalities include ablative and nonablative procedures. A major clinical side effect of thalamic surgery is the appearance of speech problems. OBJECTIVE: This review summarizes the data on the development of speech problems after thalamic surgery. METHODS: A systematic review and meta-analysis was performed using nine databases, including Medline, Web of Science, and Cochrane Library...
January 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28063895/improvement-of-table%C3%A2-tennis-dystonia-by-stereotactic-ventro-oral-thalamotomy-a-case-report
#4
Takashi Asahi, Takaomi Taira, Kiyonobu Ikeda, Jiro Yamamoto, Shuji Sato
BACKGROUND: Task-specific focal dystonia, such as writer's cramp and musician's cramp, is a type of dystonia that affects performance of particular tasks. Such movement disorders have been treated with stereotactic ventro-oral (Vo) thalamotomy with excellent outcomes. However, there has been no previous report of treatment of sport-related or athlete's dystonia by means of stereotactic surgery. We treated a patient with table tennis-related dystonia with Vo thalamotomy, and evaluated the outcome...
January 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28044461/equivalence-of-cell-survival-data-for-radiation-dose-and-thermal-dose-in-ablative-treatments-analysis-applied-to-essential-tremor-thalamotomy-by-focussed-ultrasound-and-gamma-knife
#5
D Schlesinger, M Lee, G Ter Haar, B Sela, M Eames, J Snell, N Kassell, J Sheehan, J M Larner, J-F Aubry
Thermal dose and absorbed radiation dose have historically been difficult to compare because different biological mechanisms are at work. Thermal dose denatures proteins and the radiation dose causes DNA damage in order to achieve ablation. The purpose of this paper is to use the proportion of cell survival as a potential common unit by which to measure the biological effect of each procedure. Survival curves for both thermal and radiation doses have been extracted from previously published data for three different cell types...
January 31, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27959761/a-trial-of-focused-ultrasound-thalamotomy-for-essential-tremor
#6
LETTER
Eng-King Tan, Ling-Ling Chan
No abstract text is available yet for this article.
1, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27959760/a-trial-of-focused-ultrasound-thalamotomy-for-essential-tremor
#7
LETTER
Ron L Alterman
No abstract text is available yet for this article.
1, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27959759/a-trial-of-focused-ultrasound-thalamotomy-for-essential-tremor
#8
LETTER
W Jeff Elias
No abstract text is available yet for this article.
1, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27903196/the-impact-of-cobalt-60-source-age-on-biologically-effective-dose-in-high-dose-functional-gamma-knife-radiosurgery
#9
Benjamin H Kann, James B Yu, John M Stahl, James E Bond, Christopher Loiselle, Veronica L Chiang, Ranjit S Bindra, Jason L Gerrard, David J Carlson
OBJECTIVE Functional Gamma Knife radiosurgery (GKRS) procedures have been increasingly used for treating patients with tremor, trigeminal neuralgia (TN), and refractory obsessive-compulsive disorder. Although its rates of toxicity are low, GKRS has been associated with some, if low, risks for serious sequelae, including hemiparesis and even death. Anecdotal reports have suggested that even with a standardized prescription dose, rates of functional GKRS toxicity increase after replacement of an old cobalt-60 source with a new source...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27903188/the-role-of-diffusion-tensor-imaging-tractography-for-gamma-knife-thalamotomy-planning
#10
João Gabriel Ribeiro Gomes, Alessandra Augusta Gorgulho, Amanda de Oliveira López, Crystian Wilian Chagas Saraiva, Lucas Petri Damiani, Anderson Martins Pássaro, João Victor Salvajoli, Ludmila de Oliveira Siqueira, Bernardo Peres Salvajoli, Antônio Afonso Ferreira De Salles
OBJECTIVE The role of tractography in Gamma Knife thalamotomy (GK-T) planning is still unclear. Pyramidal tractography might reduce the risk of radiation injury to the pyramidal tract and reduce motor complications. METHODS In this study, the ventralis intermedius nucleus (VIM) targets of 20 patients were bilaterally defined using Iplannet Stereotaxy Software, according to the anterior commissure-posterior commissure (AC-PC) line and considering the localization of the pyramidal tract. The 40 targets and tractography were transferred as objects to the GammaPlan Treatment Planning System (GP-TPS)...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27874491/movement-disorders-in-multiple-sclerosis-and-their-treatment
#11
Günther Deuschl
Hyperkinetic movement disorders such as tremors are not uncommon in patients with multiple sclerosis (MS). The classical feature is intention tremor, whereas rest tremors appear not to occur. Treatment is mainly invasive, with options of Gamma Knife surgery, thalamotomy or deep brain stimulation depending on individual circumstances. Deep brain stimulation is the only option for patients who require a bilateral intervention. All treatment recommendations have only low evidence. Tremors can also be cured spontaneously by a subsequent strategic MS lesion...
December 2016: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/27833521/treatment-responsive-holmes-tremor-case-report-and-literature-review
#12
REVIEW
Mohammed Alqwaifly
Holmes tremor is a rare symptomatic movement disorder, characterized by a combination of resting, postural, and action tremors. It is usually caused by lesions involving the brainstem, thalamus, and cerebellum. It is often difficult to treat, many medications have been used with varying degrees of success. It may respond to stereotactic thalamotomy and deep brain stimulation in ventralis intermedius nucleus. Here I report a case of Holmes tremor secondary to multiple sclerosis that treated with L-dopa/carpidopa and showed marked improvement...
October 2016: International Journal of Health Sciences
https://www.readbyqxmd.com/read/27822200/immediate-and-longitudinal-alterations-of-functional-networks-after-thalamotomy-in-essential-tremor
#13
Changwon Jang, Hae-Jeong Park, Won Seok Chang, Chongwon Pae, Jin Woo Chang
Thalamotomy at the ventralis intermedius nucleus has been an effective treatment method for essential tremor, but how the brain network changes immediately responding to this deliberate lesion and then reorganizes afterwards are not clear. Taking advantage of a non-cranium-opening MRI-guided focused ultrasound ablation technique, we investigated functional network changes due to a focal lesion. To classify the diverse time courses of those network changes with respect to symptom-related long-lasting treatment effects and symptom-unrelated transient effects, we applied graph-theoretic analyses to longitudinal resting-state functional magnetic resonance imaging data before and 1 day, 7 days, and 3 months after thalamotomy with essential tremor...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27777349/teaching-neuroimages-stroke-mimicking-thalamotomy-cessation-of-tremor-following-ventrolateral-thalamic-ischemia
#14
Andreas Horn, Laura Kipp, Antonio Meola, Andrea A Kühn, Christoph Leithner
No abstract text is available yet for this article.
October 25, 2016: Neurology
https://www.readbyqxmd.com/read/27720703/margin-of-error-for-a-frameless-image-guided-radiosurgery-system-direct-confirmation-based-on-posttreatment-mri-scans
#15
Guozhen Luo, Joseph S Neimat, Anthony Cmelak, Austin N Kirschner, Albert Attia, Manuel Morales-Paliza, George X Ding
PURPOSE: To report on radiosurgery delivery positioning accuracy in the treatment of tremor patients with frameless image guided radiosurgery using the linear accelerator (LINAC) based ExacTrac system and to describe quality assurance (QA) procedures used. METHODS AND MATERIALS: Between 2010 and 2015, 20 patients underwent radiosurgical thalamotomy targeting the ventral intermediate nucleus for the treatment of severe tremor. The median prescription dose was 140 Gy (range, 120-145 Gy) in a single fraction...
August 20, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/27675024/the-impact-of-cobalt-60-source-age-on-biologically-effective-dose-in-stereotactic-radiosurgery-thalamotomy
#16
B H Kann, J B Yu, J Bond, C Loiselle, V L Chiang, R S Bindra, J L Gerrard, D J Carlson
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27561439/essential-tremor-update-of-therapeutic-strategies-medical-treatment-and-gamma-knife-thalamotomy
#17
T Witjas, R Carron, E Boutin, A Eusebio, J P Azulay, J Régis
Tremor is a highly prevalent movement disorder that markedly reduces quality of life. The management of severe tremor is particularly challenging. Pharmacological treatment is available, but no real breakthrough has emerged recently. Propranolol and primidone are still the two most recommended agents, followed by topiramate. However, surgical treatments for medically refractory tremors are expanding. Gamma knife (GK) thalamotomy is an option particularly suitable for patients who are not candidates for deep brain stimulation...
August 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27557301/a-randomized-trial-of-focused-ultrasound-thalamotomy-for-essential-tremor
#18
RANDOMIZED CONTROLLED TRIAL
W Jeffrey Elias, Nir Lipsman, William G Ondo, Pejman Ghanouni, Young G Kim, Wonhee Lee, Michael Schwartz, Kullervo Hynynen, Andres M Lozano, Binit B Shah, Diane Huss, Robert F Dallapiazza, Ryder Gwinn, Jennifer Witt, Susie Ro, Howard M Eisenberg, Paul S Fishman, Dheeraj Gandhi, Casey H Halpern, Rosalind Chuang, Kim Butts Pauly, Travis S Tierney, Michael T Hayes, G Rees Cosgrove, Toshio Yamaguchi, Keiichi Abe, Takaomi Taira, Jin W Chang
BACKGROUND: Uncontrolled pilot studies have suggested the efficacy of focused ultrasound thalamotomy with magnetic resonance imaging (MRI) guidance for the treatment of essential tremor. METHODS: We enrolled patients with moderate-to-severe essential tremor that had not responded to at least two trials of medical therapy and randomly assigned them in a 3:1 ratio to undergo unilateral focused ultrasound thalamotomy or a sham procedure. The Clinical Rating Scale for Tremor and the Quality of Life in Essential Tremor Questionnaire were administered at baseline and at 1, 3, 6, and 12 months...
August 25, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27440151/mri-guided-focused-ultrasound-thalamotomy-in-fragile-x-associated-tremor-ataxia-syndrome
#19
Alfonso Fasano, Francesco Sammartino, Maheleth Llinas, Andres M Lozano
No abstract text is available yet for this article.
August 16, 2016: Neurology
https://www.readbyqxmd.com/read/27434121/stereotactic-thalamotomy-for-hairdresser-s-dystonia-a-case-series
#20
Shiro Horisawa, Shinichi Goto, Takeshi Nakajima, Taku Ochiai, Takakazu Kawamata, Takaomi Taira
BACKGROUND: Hairdresser's dystonia is a rarely reported form of focal hand dystonia, and the clinical course and treatment remains poorly understood. OBJECTIVES: The aim of this report was to clarify the impact of thalamotomy on hairdresser's dystonia. METHODS: Four consecutive patients with hairdresser's task-specific dystonia evaluated at Tokyo Women's Medical University Hospital between 2008 and 2013 were treated with stereotactic thalamotomy, and were recruited for this case series...
July 20, 2016: Stereotactic and Functional Neurosurgery
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