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Intention Tremor

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https://www.readbyqxmd.com/read/28772275/deep-brain-stimulation-for-tremor-is-there-a-common-structure
#1
Michael Fiechter, Andreas Nowacki, Markus F Oertel, Jens Fichtner, Ines Debove, M Lenard Lachenmayer, Roland Wiest, Claudio L Bassetti, Andreas Raabe, Alain Kaelin-Lang, Michael W Schüpbach, Claudio Pollo
BACKGROUND: Subthalamic nucleus (STN) stimulation has been recognized to control resting tremor in Parkinson disease. Similarly, thalamic stimulation (ventral intermediate nucleus; VIM) has shown tremor control in Parkinson disease, essential, and intention tremors. Recently, stimulation of the posterior subthalamic area (PSA) has been associated with excellent tremor control. Thus, the optimal site of stimulation may be located in the surrounding white matter. AIMS: The objective of this work was to investigate the area of stimulation by determining the contact location correlated with the best tremor control in STN/VIM patients...
August 4, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28750785/cerebellar-cortical-abiotrophy-in-young-labrador-retrievers
#2
Chandreyee Sen, Ashwani Kumar Sharma, Charanjit Singh Randhawa, Kuldip Gupta
Cerebellar abiotrophy is a hereditary degenerative disorder of the central nervous system in humans and animals. Four male and one female Labrador-retriever pups were presented with clinical signs of head swaying with intention tremor, loss of target oriented movement, wide base stance, forelimb hypermetria, and hindlimb ataxia leading to falling off during ambulation. On histopathologic examination of cerebellum, cerebellar cortical abiotrophy was confirmed with extensive loss of Purkinje cells, diminution of granular layer, relative thickening and foliar gliosis in white matter...
March 2017: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28737365/vim-thalamotomy-in-the-treatment-of-holmes-tremor-secondary-to-hiv-associated-midbrain-lesion-a-case-report
#3
José O Oliveira, Soraya A Jorge Cecilio, Matheus Fernandes Oliveira, Leonardo R Takahashi, Alexandro R Galassi, Vanessa M Holanda, José M Rotta
Holmes' tremor (rubral tremor, cerebellar outflow tremor) is characterized by rest, intention and postural tremor, often localized to one upper extremity, associated with ipsilateral dysmetria and dysdiadochokinesia. We describe a case of successful treatment of Holmes' tremor with unilateral nucleus ventralis intermedius (VIM) thalamotomy. The subject is a 43-year-old woman with unremarkable previous medical history. She presented with complete left hemiparesis in the context of human immunodeficiency syndrome and the magnetic resonance image disclosed a contrast-enhancing lesion in right brain peduncle, in topography of red nucleus...
October 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28705742/an-acute-oral-intoxication-with-haloperidol-decanoate-a-case-report
#4
Bart G J Dekkers, Ruben J Eck, Jan C Ter Maaten, Daniël J Touw
Haloperidol decanoate is a typical antipsychotic drug used as maintenance therapy for schizophrenia and mood disorders formulated as an ester for intramuscular injection. Cases of oral haloperidol decanoate intoxications have not been described in literature. In this report, we present for the first time a case of an oral ingestion of haloperidol decanoate of a young woman who presented to the emergency department following an intentional oral ingestion of 1 ampoule of haloperidol decanoate 100mg. At presentation, she had a bilateral rest tremor of both hands and mild hypothermia...
July 5, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28673510/eye-movements-in-essential-tremor-patients-with-parkinsonian-and-cerebellar-signs
#5
Magdalena Wójcik-Pędziwiatr, Elżbieta Mirek, Monika Rudzińska-Bar, Andrzej Szczudlik
Apart from intention tremor essential tremor (ET) patients may display other cerebellar signs, like dysmetria or tandem gait disturbances as well as parkinsonian signs like resting tremor, cogwheel sign, subtle bradykinesia. Previous reports claimed the occurrence of the eye movement abnormalities characteristic for dysfunction of cerebellar dorsal vermis in ET patients with concomitant cerebellar signs. There are no previous reports evaluating the eye movement abnormalities in ET patients with concomitant parkinsonian signs...
May 17, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28665251/stereotactic-radiosurgery-for-medically-refractory-multiple-sclerosis-related-tremor
#6
Sudesh S Raju, Ajay Niranjan, Edward A Monaco, John C Flickinger, L Dade Lunsford
OBJECTIVE Multiple sclerosis (MS) is a neurodegenerative disease that can lead to severe intention tremor in some patients. In several case reports, conventional radiotherapy has been reported to possibly exacerbate MS. Radiosurgery dramatically limits normal tissue irradiation to potentially avoid such a problem. Gamma Knife thalamotomy (GKT) has been established as a minimally invasive technique that is effective in treating essential tremor and Parkinson's disease-related tremor. The goal in this study was to analyze the outcomes of GKT in patients suffering from medically refractory MS-related tremor...
June 30, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28644257/holmes-tremor-secondary-to-cerebellopontine-angle-epidermoid-cyst
#7
Sanjay Pandey
Holmes' tremor is characterized by a combination of rest, postural, and intention tremor. Tremor is predominantly proximal and more severe during posture; however, the tremor frequency is usually <4 Hz on surface electromyography. We report Holmes' tremor in a patient secondary to cerebellopontine angle epidermoid cyst.
July 2017: Neurologist
https://www.readbyqxmd.com/read/28642125/safety-and-efficacy-of-dual-lead-thalamic-deep-brain-stimulation-for-patients-with-treatment-refractory-multiple-sclerosis-tremor-a-single-centre-randomised-single-blind-pilot-trial
#8
Seth F Oliveria, Ramon L Rodriguez, Dawn Bowers, Daniel Kantor, Justin D Hilliard, Erin H Monari, Bonnie M Scott, Michael S Okun, Kelly D Foote
BACKGROUND: Efficacy in previous studies of surgical treatments of refractory multiple sclerosis tremor using lesioning or deep brain stimulation (DBS) has been variable. The aim of this study was to investigate the safety and efficacy of dual-lead thalamic DBS (one targeting the ventralis intermedius-ventralis oralis posterior nucleus border [the VIM lead] and one targeting the ventralis oralis anterior-ventralis oralis posterior border [the VO lead]) for the treatment of multiple sclerosis tremor...
September 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28599949/quetiapine-extended-release-versus-aripiprazole-in-children-and-adolescents-with-first-episode-psychosis-the-multicentre-double-blind-randomised-tolerability-and-efficacy-of-antipsychotics-tea-trial
#9
Anne Katrine Pagsberg, Pia Jeppesen, Dea Gowers Klauber, Karsten Gjessing Jensen, Ditte Rudå, Marie Stentebjerg-Olesen, Peter Jantzen, Simone Rasmussen, Eva Ann-Sofie Saldeen, Maj-Britt Glenn Lauritsen, Niels Bilenberg, Anne Dorte Stenstrøm, Louise Nyvang, Sarah Madsen, Thomas M Werge, Theis Lange, Christian Gluud, Maria Skoog, Per Winkel, Jens Richardt M Jepsen, Birgitte Fagerlund, Christoph U Correll, Anders Fink-Jensen
BACKGROUND: Head-to-head trials to guide antipsychotic treatment choices for paediatric psychosis are urgently needed because extrapolations from adult studies might not be implementable. In this superiority trial with two-sided significance testing, we aimed to compare the efficacy and safety of quetiapine-extended release (quetiapine-ER) versus aripiprazole in children and adolescents with first-episode psychosis, to determine whether differences between the two treatments were sufficient to guide clinicians in their choice of one drug over the other...
August 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28415166/holmes-tremor-with-shoulder-pain-treated-by-deep-brain-stimulation-of-unilateral-ventral-intermediate-thalamic-nucleus-and-globus-pallidus-internus
#10
Sabri Aydın, Huseyin Canaz, Ezgi Tuna Erdogan, Nazlı Durmaz, Barıs Topcular
A 21-year-old male was admitted with severe right arm and hand tremors after a thalamic hemorrhage caused by a traffic accident. He was also suffering from agonizing pain in his right shoulder that manifested after the tremor. Neurologic examination revealed a disabling, severe, and irregular kinetic and postural tremor in the right arm during target-directed movements. There was also an irregular ipsilateral rest tremor and dystonic movements in the distal part of the right arm. The amplitude was moderate at rest and extremely high during kinetic and intentional movements...
May 2017: Journal of Movement Disorders
https://www.readbyqxmd.com/read/28382853/primary-cerebellar-lymphoma-with-hodgkin-lymphoma-like-morphology-in-a-cat
#11
Yuka Yoshino, James K Chambers, Taichi Nakamori, Yuko Goto-Koshino, Kazuo Nishigaki, Hajime Tsujimoto, Naoaki Matsuki, Hiroyuki Nakayama, Kazuyuki Uchida
A 4-y-old cat exhibited neurologic signs such as wobbling, right head tilt, and intention tremor, and MRI revealed a mass in the cerebellum. The cat died 5 mo after initial presentation, and no neoplastic lesions, other than the cerebellar mass, were observed at autopsy. Histologically, large atypical cells resembling Hodgkin cells, with single large inclusion-like nucleoli, and those resembling Reed-Sternberg cells, with symmetrically arranged nuclei, had infiltrated the left side of the cerebellum and were admixed with small lymphocytes...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28269439/graphical-user-interface-for-a-robotic-workstation-in-a-surgical-environment
#12
A Bielski, C P Lohmann, M Maier, D Zapp, M A Nasseri
Surgery using a robotic system has proven to have significant potential but is still a highly challenging task for the surgeon. An eye surgery assistant has been developed to eliminate the problem of tremor caused by human motions endangering the outcome of ophthalmic surgery. In order to exploit the full potential of the robot and improve the workflow of the surgeon, providing the ability to change control parameters live in the system as well as the ability to connect additional ancillary systems is necessary...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28256785/deep-brain-stimulation-of-the-dentato-rubro-thalamic-tract-outcomes-of-direct-targeting-for-tremor
#13
Albert J Fenoy, Mya C Schiess
OBJECTIVES: Targeting the dentato-rubro-thalamic tract (DRTt) has been suggested to be efficacious in deep brain stimulation (DBS) for tremor suppression, both in case reports and post-hoc analyses. This prospective observational study sought to analyze outcomes after directly targeting the DRTt in tremor patients. METHODS: 20 consecutively enrolled intention tremor patients obtained pre-operative MRI with diffusion tensor (dTi) sequences. Mean baseline tremor amplitude based on The Essential Tremor Rating Assessment Scale was recorded...
March 3, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28251007/a-pediatric-case-of-cowden-syndrome-with-graves-disease
#14
Cláudia Patraquim, Vera Fernandes, Sofia Martins, Ana Antunes, Olinda Marques, José Luís Carvalho, Jorge Correia-Pinto, Carla Meireles, Ana Margarida Ferreira
Cowden syndrome (CS) is a rare dominantly inherited multisystem disorder, characterized by an extraordinary malignant potential. In 80% of cases, the human tumor suppressor gene phosphatase and tensin homolog (PTEN) is mutated. We present a case of a 17-year-old boy with genetically confirmed CS and Graves' disease (GD). At the age of 15, he presented with intention tremor, palpitations, and marked anxiety. On examination, he had macrocephaly, coarse facies, slight prognathism, facial trichilemmomas, abdominal keratoses, leg hemangioma, and a diffusely enlarged thyroid gland...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28227685/graphical-user-interface-for-a-robotic-workstation-in-a-surgical-environment
#15
A Bielski, C P Lohmann, M Maier, D Zapp, M A Nasseri, A Bielski, C P Lohmann, M Maier, D Zapp, M A Nasseri, M A Nasseri, M Maier, D Zapp, C P Lohmann, A Bielski
Surgery using a robotic system has proven to have significant potential but is still a highly challenging task for the surgeon. An eye surgery assistant has been developed to eliminate the problem of tremor caused by human motions endangering the outcome of ophthalmic surgery. In order to exploit the full potential of the robot and improve the workflow of the surgeon, providing the ability to change control parameters live in the system as well as the ability to connect additional ancillary systems is necessary...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28216232/safety-and-efficacy-of-a-nav1-7-selective-sodium-channel-blocker-in-patients-with-trigeminal-neuralgia-a-double-blind-placebo-controlled-randomised-withdrawal-phase-2a-trial
#16
RANDOMIZED CONTROLLED TRIAL
Joanna M Zakrzewska, Joanne Palmer, Valerie Morisset, Gerard Mp Giblin, Mark Obermann, Dominik A Ettlin, Giorgio Cruccu, Lars Bendtsen, Mark Estacion, Dominique Derjean, Stephen G Waxman, Gary Layton, Kevin Gunn, Simon Tate
BACKGROUND: Current standard of care for trigeminal neuralgia is treatment with the sodium channel blockers carbamazepine and oxcarbazepine, which although effective are associated with poor tolerability and the need for titration. BIIB074, a Nav1.7-selective, state-dependent sodium-channel blocker, can be administered at therapeutic doses without titration, and has shown good tolerability in healthy individuals in phase 1 studies. We therefore assessed the safety and efficacy of BIIB074 in patients with trigeminal neuralgia in a phase 2a study...
April 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28176975/familial-aggregation-of-the-cerebellar-signs-in-familial-essential-tremor
#17
Elan D Louis, Nora Hernandez, Karen P Chen, Kelly V Naranjo, Jemin Park, Lorraine N Clark, Ruth Ottman
BACKGROUND: Although the hallmark feature of essential tremor (ET) is kinetic tremor, patients may exhibit additional motor features (e.g., intention tremor and mild gait ataxia) that are markers of an underlying abnormality of cerebellar function. ET is also a highly familial disorder, but we do not know whether the presence and expression of cerebellar signs are similar across family members. There are simply no published data. The alternative possibility is that these features are not heritable...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28166936/cerebellar-disease-of-ruminants
#18
REVIEW
Philippa Gibbons
Cerebellar disease can be congenital or acquired. Clinical signs of cerebellar disease include hypermetric gait in all limbs, normal to increased muscle tone, wide-based stance, swaying, intention tremor, and convulsions. Vestibular signs may be observed. Differential diagnoses for etiology include congenital (hypoplasia, abiotrophy, and lysosomal storage diseases), viral, bacterial, and toxic plants. Animals may present aborted as fetuses or stillborn, be affected at birth, develop disease at a few months old, or acquire the disease later in life...
March 2017: Veterinary Clinics of North America. Food Animal Practice
https://www.readbyqxmd.com/read/28120053/restoring-neurological-physiology-the-innovative-role-of-high-energy-mr-guided-focused-ultrasound-himrgfus-preliminary-data-from-a-new-method-of-lesioning-surgery
#19
Antonella Giugno, Rosario Maugeri, Francesca Graziano, Cesare Gagliardo, Angelo Franzini, Carlo Catalano, Massimo Midiri, Domenico Gerardo Iacopino
BACKGROUND: Tremor is a disabling condition, common to several neurodegenerative diseases. Lesioning procedures and deep brain stimulation, respectively, of the ventralis intermedius nucleus for intentional tremor, and of the subthalamic nucleus for parkinsonian resting tremor, have been introduced in clinical practice for patients refractory to medical treatment. The combination of high-energy focused ultrasound (HIFUS) with sophisticated magnetic resonance (MR) instrumentation, together with accurate knowledge of the stereotactic brain coordinates, represents a revolution in neuromodulation...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28095027/severe-and-extensive-traumatic-axonal-injury-following-minor-and-indirect-head-trauma
#20
Sung Ho Jang, Han Do Lee
OBJECTIVES: This study reports on a patient with mild traumatic brain injury (TBI) who showed severe and extensive traumatic axonal injury (TAI) of various neural tracts following minor and indirect head trauma, which was demonstrated by diffusion tensor tractography (DTT). CASE DESCRIPTION: A 26-year-old female patient suffered from indirect head trauma resulting from flexion-hyperextension injury after being hit from behind by a slowly moving car. At the time of head trauma, she felt tingling sensation on her four extremities; however, she did not experience loss of consciousness...
2017: Brain Injury: [BI]
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