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Neck dystonia

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https://www.readbyqxmd.com/read/27895619/a-functional-magnetic-resonance-imaging-study-of-head-movements-in-cervical-dystonia
#1
Cecília N Prudente, Randall Stilla, Shivangi Singh, Cathrin Buetefisch, Marian Evatt, Stewart A Factor, Alan Freeman, Xiaoping Philip Hu, Ellen J Hess, K Sathian, H A Jinnah
Cervical dystonia (CD) is a neurological disorder characterized by abnormal movements and postures of the head. The brain regions responsible for these abnormal movements are not well understood, because most imaging techniques for assessing regional brain activity cannot be used when the head is moving. Recently, we mapped brain activation in healthy individuals using functional magnetic resonance imaging during isometric head rotation, when muscle contractions occur without actual head movements. In the current study, we used the same methods to explore the neural substrates for head movements in subjects with CD who had predominantly rotational abnormalities (torticollis)...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27886079/cerebellar-intermittent-theta-burst-stimulation-and-motor-control-training-in-individuals-with-cervical-dystonia
#2
Lynley V Bradnam, Michelle N McDonnell, Michael C Ridding
BACKGROUND: There is emerging evidence that cervical dystonia is a neural network disorder with the cerebellum as a key node. The cerebellum may provide a target for neuromodulation as a therapeutic intervention in cervical dystonia. OBJECTIVE: This study aimed to assess effects of intermittent theta-burst stimulation of the cerebellum on dystonia symptoms, quality of life, hand motor dexterity and cortical neurophysiology using transcranial magnetic stimulation...
November 23, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27833231/acute-dystonia-after-single-dose-of-bupropion
#3
Forouzan Elyasi, Elham Mahtiyan
Bupropion is an antidepressant that is effective in the treatment of major depressive disorders, smoking cessation, and sexual side effects of selective serotonin reuptake inhibitors. Acute dystonia is characterized by prolonged muscle contraction often represented by spasms of the head and neck muscles as well as occasional jaw clenching and temporomandibular joint syndrome. Although it is believed that dystonia is the result of an abnormality of the basal ganglia, its pathophysiology is still unclear. A few cases of dystonia resulting from bupropion have been reported in prior research papers...
September 2016: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/27831867/real-time-ultrasound-segmentation-analysis-and-visualisation-of-deep-cervical-muscle-structure
#4
Ryan Cunningham, Peter Harding, Ian Loram
Despite widespread availability of ultrasound and a need for personalised muscle diagnosis (neck/back pain-injury, work related disorder, myopathies, neuropathies), robust, online segmentation of muscles within complex groups remains unsolved by existing methods. For example, Cervical Dystonia (CD) is a prevalent neurological condition causing painful spasticity in one or multiple muscles in the cervical muscle system. Clinicians currently have no method for targeting/monitoring treatment of deep muscles. Automated methods of muscle segmentation would enable clinicians to study, target, and monitor the deep cervical muscles via ultrasound...
November 1, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/27822381/clinical-pearls-how-my-patients-taught-me-the-fainting-lark-symptom
#5
A Kuiper, M E van Egmond, M P M Harms, M D Oosterhoff, B van Harten, D A Sival, T J de Koning, M A J Tijssen
BACKGROUND: Compulsive movements, complex tics and stereotypies are frequent, especially among patients with autism or psychomotor retardation. These movements can be difficult to characterize and can mimic other conditions like epileptic seizures or paroxysmal dystonia, particularly when abnormal breathing and cerebral hypoxia are induced. CASE PRESENTATION: We describe an 18-year-old patient with Asperger syndrome who presented with attacks of tonic posturing of the trunk and neck...
2016: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/27821134/asphyxia-due-to-laryngeal-spasm-as-a-severe-complication-of-awake-deep-brain-stimulation-for-parkinson-s-disease-a-case-report
#6
Kajetan L von Eckardstein, Friederike Sixel-Döring, Stephan Kazmaier, Claudia Trenkwalder, Jason M Hoover, Veit Rohde
BACKGROUND: In accordance with German neurosurgical and neurological consensus recommendations, lead placements for deep brain stimulation (DBS) in patients with Parkinson's disease (PD) are usually performed with the patient awake and in "medication off" state. This allows for optimal lead position adjustment according to the clinical response to intraoperative test stimulation. However, exacerbation of Parkinsonian symptoms after withdrawal of dopaminergic medication may endanger the patient by inducing severe "off" state motor phenomena...
November 8, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27753188/clinical-and-demographic-characteristics-related-to-onset-site-and-spread-of-cervical-dystonia
#7
Scott A Norris, H A Jinnah, Alberto J Espay, Christine Klein, Norbert Brüggemann, Richard L Barbano, Irene Andonia C Malaty, Ramon L Rodriguez, Marie Vidailhet, Emmanuel Roze, Stephen G Reich, Brian D Berman, Mark S LeDoux, Sarah Pirio Richardson, Pinky Agarwal, Zoltan Mari, William G Ondo, Ludy C Shih, Susan H Fox, Alfredo Berardelli, Claudia M Testa, Florence Ching-Fen Cheng, Daniel Truong, Fatta B Nahab, Tao Xie, Mark Hallett, Ami R Rosen, Laura J Wright, Joel S Perlmutter
BACKGROUND: Clinical characteristics of isolated idiopathic cervical dystonia such as onset site and spread to and from additional body regions have been addressed in single-site studies with limited data and incomplete or variable dissociation of focal and segmental subtypes. The objectives of this study were to characterize the clinical characteristics and demographics of isolated idiopathic cervical dystonia in the largest standardized multicenter cohort. METHODS: The Dystonia Coalition, through a consortium of 37 recruiting sites in North America, Europe, and Australia, recruited 1477 participants with focal (60...
October 18, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27721106/effects-of-cerebellar-theta-burst-stimulation-on-arm-and-neck-movement-kinematics-in-patients-with-focal-dystonia
#8
Matteo Bologna, Giulia Paparella, Andrea Fabbrini, Giorgio Leodori, Lorenzo Rocchi, Mark Hallett, Alfredo Berardelli
OBJECTIVE: To investigate the cerebellar inhibitory influence on the primary motor cortex in patients with focal dystonia using a cerebellar continuous theta-burst stimulation protocol (cTBS) and to evaluate any relationship with movement abnormalities. METHODS: Thirteen patients with focal hand dystonia, 13 patients with cervical dystonia and 13 healthy subjects underwent two sessions: (i) cTBS over the cerebellar hemisphere (real cTBS) and (ii) cTBS over the neck muscles (sham cTBS)...
November 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27664338/an-unusual-cause-of-cervical-kyphosis
#9
Mamtha S Raj, Joseph H Schwab
BACKGROUND CONTEXT: Acute fixed cervical kyphosis may be a rare presentation of conversion disorder, psychogenic dystonia, and potentially as a side effect from typical antipsychotic drugs. Haldol has been associated with acute dystonic reactions. In some cases, rigid deformities ensue. We are reporting a case of a fixed cervical kyphosis after the use of Haldol. PURPOSE: To present a case of a potential acute dystonic reaction temporally associated with Haldol ingestion leading to fixed cervical kyphosis...
September 21, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27624726/anatomy-and-cervical-dystonia-dysfunction-follows-form
#10
L Tatu, W H Jost
At first glance, cervical dystonia might be an illustration of the well-known proposition "function follows form". Nevertheless, cervical dystonia is a highly non-physiological condition, which cannot be reproduced by healthy subjects and does not respond to the usual physiological rules. "Dysfunction follows form" might be the most accurate aphorism to define cervical dystonia. Taking into account this situation and recent insights, the anatomic approach needs to be adapted to allow a better understanding of semiology and to improve botulinum toxin therapy...
September 13, 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27600559/botulinum-toxin-injection-in-laryngeal-dyspnea
#11
Virginie Woisard, Xuelai Liu, Marie Christine Arné Bes, Marion Simonetta-Moreau
Data, regarding the use of botulinum toxin (BT-A) in laryngeal dyspnea, are scarce, coming from some cases reports in the literature, including Vocal fold paralysis, laryngeal dystonia, vocal cord dysfunction also called paradoxical motion of the vocal fold (PMVF), and post-neuroleptic laryngeal dyskinesia. There is no consensus regarding the muscles and the doses to inject. The aim of this study is to present a retrospective review of patients treated in our ENT Department by BT-A injection in this indication...
September 6, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27591450/-cervical-dystonia-treatment-with-botulin-toxin
#12
REVIEW
Kazimierz Tomczykiewicz
Cervical dystonia is the most common form of dystonia in adult age. It is characterized by involuntary muscle contractions that cause abnormal movements and positioning of the head and neck. Symptoms of it are often associated with pain. This distinguishes this form from other dystonia. The drug of choice is botulinum toxin. It effectively reduces both pain and abnormal excessive muscle activity. In some cases, particularly where there is not obtained the full recovery after treatment botulinum toxin we used drugs for systemic effect...
August 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27590655/-cervical-dystonia-treatment-with-botulin-toxin
#13
REVIEW
Kazimierz Cervical Dystonia Treatment With Botulin Toxin
Cervical dystonia is the most common form of dystonia in adult age. It is characterized by involuntary muscle contractions that cause abnormal movements and positioning of the head and neck. Symptoms of it are often associated with pain. This distinguishes this form from other dystonia. The drug of choice is botulinum toxin. It effectively reduces both pain and abnormal excessive muscle activity. In some cases, particularly where there is not obtained the full recovery after treatment botulinum toxin we used drugs for systemic effect...
July 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27553512/determinants-of-disability-in-cervical-dystonia
#14
J van den Dool, M A J Tijssen, J H T M Koelman, R H H Engelbert, B Visser
BACKGROUND: Cervical dystonia (CD) is characterized by involuntary muscle contractions causing abnormal postures and/or twisting movements of the head and neck. These motor symptoms can have a major impact on disability. Treatment with botulinum toxin injections aims to reduce motor symptoms, and therefore disability. Despite motor improvements, many patients still experience difficulties with performing daily life activities. To optimize treatment, other factors that determine disability should be identified...
August 15, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27293342/sporadic-and-familial-myoclonic-dystonia-report-of-three-cases-and-review-of-literature
#15
Kalyan B Bhattacharyya, Arijit Roy, Atanu Biswas, Ashutosh Pal
Myoclonic dystonia refers to a clinical syndrome characterized by rapid jerky movements along with dystonic posturing of the limbs. Clinically, it is characterized by sudden, brief, electric shock-like movements, mostly involving the upper extremities, shoulders, neck and trunk. Characteristically, the movements wane with consumption of small dose of alcohol in about 50% of cases. Additionally, dystonic contractions are observed in most of the patients in the affected body parts and some patients may exhibit cervical dystonia or graphospasm as well...
April 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27258955/myasthenia-gravis-presentation-after-a-cervical-laminectomy-with-fusion
#16
Darlene Deters, Stephanie L Fowler, Raymundo Orozco, Patrick R Smith, Shelby Spurlock, Darlene Blackmon, Samantha Thomas
Myasthenia gravis is a chronic neuromuscular disorder that causes skeletal muscle weakness. Typically, myasthenia gravis affects the ocular, bulbar, neck, proximal limbs, and respiratory muscles. Although the presentation is typically observed with complaints of vision and bulbar symptoms such as diplopia, dystonia, and dysphagia, this article presents a case study of an elderly man with a history of increasing upper extremity weakness with complaints of worsening hand dexterity and intermittent episodes of expressive aphasia...
July 2016: Dimensions of Critical Care Nursing: DCCN
https://www.readbyqxmd.com/read/27242657/distribution-and-coexistence-of-myoclonus-and-dystonia-as-clinical-predictors-of-sgce-mutation-status-a-pilot-study
#17
Rodi Zutt, Joke M Dijk, Kathryn J Peall, Hans Speelman, Yasmine E M Dreissen, Maria Fiorella Contarino, Marina A J Tijssen
INTRODUCTION: Myoclonus-dystonia (M-D) is a young onset movement disorder typically involving myoclonus and dystonia of the upper body. A proportion of the cases are caused by mutations to the autosomal dominantly inherited, maternally imprinted, epsilon-sarcoglycan gene (SGCE). Despite several sets of diagnostic criteria, identification of patients most likely to have an SGCE mutation remains difficult. METHODS: Forty consecutive patients meeting pre-existing diagnostic clinical criteria for M-D underwent a standardized clinical examination (20 SGCE mutation positive and 20 negative)...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27138215/cervical-dystonia-and-quality-of-life
#18
Svetlana Tomic, Ivana Petkovic, Tomislav Pucic, Bojan Resan, Stjepan Juric, Tatjana Rotim
Cervical dystonia is focal dystonia characterized by involuntary movement of the neck muscle, which leads to abnormal head posture. It can be accompanied with pain and tremor. In this study, we evaluated the presence of depression and anxiety in patients with cervical dystonia and the influence of dystonia symptoms on the quality of life. Psychiatric symptoms were evaluated by use of the Beck Depression Inventory (BDI-II) and Beck Anxiety Inventory. Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) was used to evaluate the cervical dystonia symptoms...
May 2, 2016: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/27126370/participation-of-the-thalamic-cm-pf-complex-in-movement-performance-in-patients-with-dystonia
#19
Ulia Semenova, Svetlana Raeva, Alexey Sedov
INTRODUCTION: The centrum medianum- parafascicular complex of the human thalamus has a critical influence on cortical activity and significantly influences somatosensory function, arousal, and attention. In addition to its cortical connections, this region of the intralaminar thalamic nuclei is also connected to motor areas of the basal ganglia and the brain stem. OBJECTIVE: The goal of this study was to identify movement-related neurons in the centrum medianum-parafascicular complex and analyze the changes in their activity during voluntary movements in patients with cervical dystonia...
September 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27123488/clinical-and-genetic-features-of-cervical-dystonia-in-a-large-multicenter-cohort
#20
Mark S LeDoux, Satya R Vemula, Jianfeng Xiao, Misty M Thompson, Joel S Perlmutter, Laura J Wright, H A Jinnah, Ami R Rosen, Peter Hedera, Cynthia L Comella, Anne Weissbach, Johanna Junker, Joseph Jankovic, Richard L Barbano, Stephen G Reich, Ramon L Rodriguez, Brian D Berman, Sylvain Chouinard, Lawrence Severt, Pinky Agarwal, Natividad P Stover
OBJECTIVE: To characterize the clinical and genetic features of cervical dystonia (CD). METHODS: Participants enrolled in the Dystonia Coalition biorepository (NCT01373424) with initial manifestation as CD were included in this study (n = 1,000). Data intake included demographics, family history, and the Global Dystonia Rating Scale. Participants were screened for sequence variants (SVs) in GNAL, THAP1, and Exon 5 of TOR1A. RESULTS: The majority of participants were Caucasian (95%) and female (75%)...
June 2016: Neurology. Genetics
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