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Cervical dystonia

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https://www.readbyqxmd.com/read/28323682/relationship-of-cognitive-function-to-motor-symptoms-and-mood-disorders-in-patients-with-isolated-dystonia
#1
Jennifer A Foley, R Saman Vinke, Patricia Limousin, Lisa Cipolotti
OBJECTIVE: To investigate the relationship of dystonia symptoms to cognitive function by comparing cognitive performance in patients with focal (cervical) and generalized dystonia subtypes and examining the differential contributions of severity of symptoms and mood disorders to cognition. BACKGROUND: Studies of the nonmotor syndrome in isolated dystonia have reported evidence of cognitive dysfunction, but the cause of this impairment remains unclear. Several studies have suggested that poor cognitive performance reflects the distracting effects of the motor symptoms and/or a mood disorder...
March 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28316586/spatial-and-temporal-high-processing-of-visual-and-auditory-stimuli-in-cervical-dystonia
#2
Gaetana Chillemi, Alessandro Calamuneri, Francesca Morgante, Carmen Terranova, Vincenzo Rizzo, Paolo Girlanda, Maria Felice Ghilardi, Angelo Quartarone
OBJECTIVE: Investigation of spatial and temporal cognitive processing in idiopathic cervical dystonia (CD) by means of specific tasks based on perception in time and space domains of visual and auditory stimuli. BACKGROUND: Previous psychophysiological studies have investigated temporal and spatial characteristics of neural processing of sensory stimuli (mainly somatosensorial and visual), whereas the definition of such processing at higher cognitive level has not been sufficiently addressed...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28314910/the-relationship-between-the-dopaminergic-system-and-depressive-symptoms-in-cervical-dystonia
#3
E Zoons, M A J Tijssen, Y E M Dreissen, J D Speelman, M Smit, J Booij
PURPOSE: Cervical dystonia (CD) is associated with tremor/jerks (50%) and psychiatric complaints (17-70%). The dopaminergic system has been implicated in the pathophysiology of CD in animal and imaging studies. Dopamine may be related to the motor as well as non-motor symptoms of CD. CD is associated with reduced striatal dopamine D2/3 (D2/3) receptor and increased dopamine transporter (DAT) binding. There are differences in the dopamine system between CD patients with and without jerks/tremor and psychiatric symptoms...
March 17, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28297686/-early-experience-with-the-vercise-sup-tm-sup-dbs-system-in-the-treatment-of-dystonic-tremor
#4
Yasushi Miyagi
Six cases of dystonic tremor were treated with the Vercise<sup>TM</sup> deep brain stimulation(DBS)system, which has the multiple independent current control(MICC)technology. The mean preoperative score of Burke-Fahn-Marsden dystonia rating scale was 16.2±9.4, which was reduced to 6.1±4.6 at 5 months postoperatively. A 65-year-old male presented an intractable dystonic tremor of the jaw, neck, and shoulders due to tardive syndrome. He experienced the successful tremor relief after unipolar DBS in the globus pallidus internus(GPi)with Vercise<sup>TM</sup> but complained of dysarthria...
March 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28286494/clinical-practice-evidence-based-recommendations-for-the-treatment-of-cervical-dystonia-with-botulinum-toxin
#5
REVIEW
Maria Fiorella Contarino, Joost Van Den Dool, Yacov Balash, Kailash Bhatia, Nir Giladi, Johannes H Koelman, Annemette Lokkegaard, Maria J Marti, Miranda Postma, Maja Relja, Matej Skorvanek, Johannes D Speelman, Evelien Zoons, Joaquim J Ferreira, Marie Vidailhet, Alberto Albanese, Marina A J Tijssen
Cervical dystonia (CD) is the most frequent form of focal dystonia. Symptoms often result in pain and functional disability. Local injections of botulinum neurotoxin are currently the treatment of choice for CD. Although this treatment has proven effective and is widely applied worldwide, many issues still remain open in the clinical practice. We performed a systematic review of the literature on botulinum toxin treatment for CD based on a question-oriented approach, with the aim to provide practical recommendations for the treating clinicians...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28239516/nonmotor-symptoms-in-primary-adult-onset-cervical-dystonia-and-blepharospasm
#6
Jing Yang, Na Shao, Wei Song, Qianqian Wei, Ruwei Ou, Ying Wu, Hui-Fang Shang
BACKGROUND: The nature and frequency of nonmotor symptoms in primary adult-onset cervical dystonia (CD) and blepharospasm (BSP) patients in Chinese populations remain unknown. METHODS: Hamilton's Depression Scale (HAMD), Hamilton's Anxiety Scale (HAMA), Addenbrooke's Cognitive Examination Revised (ACE-R), Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale were used to evaluate NMS in 120 patients with primary focal adult-onset dystonia (60 with BSP and 60 with CD) and 60 age-, sex-, and education level- matched healthy controls (HCs)...
February 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28223858/the-therapeutic-usage-of-botulinum-toxin-botox-in-non-cosmetic-head-and-neck-conditions-an-evidence-based-review
#7
REVIEW
Kamran Habib Awan
Botulinum toxin (Botox) is an exotoxin produced from Clostridium botulinum. It blocks the release of acetylcholine from the cholinergic nerve end plates resulting in inactivity of the muscles or glands innervated. The efficacy of Botox in facial aesthetics is well established; however, recent literature has highlighted its utilization in multiple non-cosmetic medical and surgical conditions. The present article reviews the current evidence pertaining to Botox use in the non-cosmetic head and neck conditions...
January 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28218416/physiology-of-midbrain-head-movement-neurons-in-cervical-dystonia
#8
Alexey Sedov, Valentin Popov, Vladimir Shabalov, Svetlana Raeva, H A Jinnah, Aasef G Shaikh
BACKGROUND: Early theories for cervical dystonia, as promoted by Hassler, emphasized the role of the midbrain interstitial nucleus of Cajal. Focus then shifted to the basal ganglia, and it was further supported with the success of deep brain stimulation. Contemporary theories suggested the role of the cerebellum, but even more recent hypotheses renewed interest in the midbrain. Although the pretectum was visited on several occasions, we still do not know about the physiology of midbrain neurons in cervical dystonia...
February 20, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28215037/the-italian-dystonia-registry-rationale-design-and-preliminary-findings
#9
Giovanni Defazio, M Esposito, G Abbruzzese, C L Scaglione, G Fabbrini, G Ferrazzano, S Peluso, R Pellicciari, A F Gigante, G Cossu, R Arca, L Avanzino, F Bono, M R Mazza, L Bertolasi, R Bacchin, R Eleopra, C Lettieri, F Morgante, M C Altavista, L Polidori, R Liguori, S Misceo, G Squintani, M Tinazzi, R Ceravolo, E Unti, L Magistrelli, M Coletti Moja, N Modugno, M Petracca, N Tambasco, M S Cotelli, M Aguggia, A Pisani, M Romano, M Zibetti, A R Bentivoglio, A Albanese, P Girlanda, A Berardelli
The Italian Dystonia Registry is a multicenter data collection system that will prospectively assess the phenomenology and natural history of adult-onset dystonia and will serve as a basis for future etiological, pathophysiological and therapeutic studies. In the first 6 months of activity, 20 movement disorders Italian centres have adhered to the registry and 664 patients have been recruited. Baseline historical information from this cohort provides the first general overview of adult-onset dystonia in Italy...
February 18, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28195407/a-pilot-trial-of-square-biphasic-pulse-deep-brain-stimulation-for-dystonia-the-bip-dystonia-study
#10
Leonardo Almeida, Daniel Martinez-Ramirez, Bilal Ahmed, Wissam Deeb, Sol De Jesus, Jared Skinner, Matthew J Terza, Umer Akbar, Robert S Raike, Chris J Hass, Michael S Okun
BACKGROUND: Dystonia often has inconsistent benefits and requires more energy-demanding DBS settings. Studies suggest that squared biphasic pulses could provide significant clinical benefit; however, dystonia patients have not been explored. OBJECTIVES: To assess safety and tolerability of square biphasic DBS in dystonia patients. METHODS: This study included primary generalized or cervical dystonia patients with bilateral GPi DBS. Square biphasic pulses were implemented and patients were assessed at baseline, immediately postwashout, post-30-minute washout, 1 hour post- and 2 hours postinitiation of investigational settings...
February 13, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28192488/does-dystonic-muscle-activity-affect-sense-of-effort-in-cervical-dystonia
#11
Loïc Carment, Marc A Maier, Sophie Sangla, Vincent Guiraud, Serge Mesure, Marie Vidailhet, Påvel G Lindberg, Jean-Pierre Bleton
BACKGROUND: Focal dystonia has been associated with deficient processing of sense of effort cues. However, corresponding studies are lacking in cervical dystonia (CD). We hypothesized that dystonic muscle activity would perturb neck force control based on sense of effort cues. METHODS: Neck extension force control was investigated in 18 CD patients with different clinical features (7 with and 11 without retrocollis) and in 19 control subjects. Subjects performed force-matching and force-maintaining tasks at 5% and 20% of maximum voluntary contraction (MVC)...
2017: PloS One
https://www.readbyqxmd.com/read/28186664/disruption-in-cerebellar-and-basal-ganglia-networks-during-a-visuospatial-task-in-cervical-dystonia
#12
Pavel Filip, Cécile Gallea, Stéphane Lehéricy, Eric Bertasi, Traian Popa, Radek Mareček, Ovidiu V Lungu, Tomáš Kašpárek, Jiří Vaníček, Martin Bareš
BACKGROUND: Although dystonia is traditionally conceptualized as a basal ganglia disorder, increasing interest has been directed at a different neural network node, the cerebellum, which may play a significant role in the pathophysiology of dystonia. Abnormal sensorimotor processing and disturbed motor schemes, possibly attributable to cerebellar changes, remain unclear. METHODS: We sought to characterize the extent of cerebellar dysfunction within the motor network using functional MRI activation analysis, connectivity analysis, and voxel-based morphometry in cervical dystonia patients (n = 25, 15 women, mean age 45...
February 10, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28159584/botulinum-toxin-in-the-management-of-head-and-neck-disorders
#13
REVIEW
Ravleen Nagi, Deepa Jatti Patil, Shashikant Sahu, Supreet Jain, Giridhar S Naidu
Botulinum toxin is a polypeptide protoxin synthesized by Clostridium botulinum that results in localized reduction of muscle activity by inhibiting acetylcholine release at the neuromuscular junction. In 2004, the US Food and Drug Administration approved its application in the treatment of various medical conditions, such as facial wrinkles, strabismus, cervical dystonia, blepharospasm, and hyperhidrosis. Later, its application extended to improving dental esthetics and gummy smile. It was found to be a safe and effective alternative to medical therapy to treat various head and neck disorders that have a neurologic component...
December 7, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28157620/dynamic-head-neck-stabilization-in-cervical-dystonia
#14
Patrick A Forbes, Edo de Bruijn, Sebastiaan W R Nijmeijer, Johannes H T M Koelman, Frans C T van der Helm, Alfred C Schouten, Marina A J Tijssen, Riender Happee
BACKGROUND: Effective sensorimotor integration is essential to modulate (adapt) neck stabilization strategies in response to varying tasks and disturbances. This study evaluates the hypothesis that relative to healthy controls cervical dystonia patients have an impaired ability to modulate afferent feedback for neck stabilization with changes in the frequency content of mechanical perturbations. METHODS: We applied anterior-posterior displacement perturbations (110s) on the torso of seated subjects, while recording head-neck kinematics and muscular activity...
January 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28156208/image-guided-intrathecal-baclofen-pump-catheter-implantation-a-technical-note-and-case-series
#15
Shenandoah Robinson, Faith C Robertson, Hormuzdiyar H Dasenbrock, Cormac P O'Brien, Charles Berde, Horacio Padua
OBJECTIVE Medically refractory spasticity and dystonia are often alleviated with intrathecal baclofen (ITB) administration through an indwelling catheter inserted in the lumbar spine. In patients with cerebral palsy, however, there is a high incidence of concomitant neuromuscular scoliosis. ITB placement may be technically challenging in those who have severe spinal deformity or who have undergone prior instrumented thoracolumbar fusion. Although prior reports have described drilling through the lumbar fusion mass with a high-speed bur, as well as IT catheter implantation at the foramen magnum or cervical spine, these approaches have notable limitations...
February 3, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28138245/quality-of-life-in-cervical-dystonia-after-treatment-with-botulinum-toxin-a-a-24-week-prospective-study
#16
Subsai Kongsaengdao, Benchalak Maneeton, Narong Maneeton
OBJECTIVE: This study aimed to identify possible improvements in disease-specific health-related quality of life (HRQoL) after multiple injections of botulinum toxin A over 24 weeks in Thai cervical dystonia (CD) patients. MATERIALS AND METHODS: A 24-week prospective study comparing HRQoL of Thai CD patients before and after multiple injections of botulinum toxin A at 3-month intervals was performed. Disease-specific HRQoL was assessed by using the Cervical Dystonia Impact Profile-58 questionnaire (CDIP-58) and the Craniocervical Dystonia Questionnaire-24 (CDQ-24)...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28131194/plasticity-of-static-graviceptive-function-in-patients-with-cervical-dystonia
#17
Kirsten Platho-Elwischger, Gottfried Kranz, Thomas Sycha, Daniela Dunkler, Paulus Rommer, Christian Mueller, Eduard Auff, Gerald Wiest
No abstract text is available yet for this article.
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28119789/integration-of-osteopathic-manual-treatments-in-management-of-cervical-dystonia-with-tremor-a-case-series
#18
Miriam Halimi, Adena Leder, Jayme D Mancini
BACKGROUND: Cervical dystonia, also known as spasmodic torticollis, is a chronic disorder in which patients exhibit involuntary repetitive contractions of neck muscles resulting in abnormal postures or movements. Occasionally, there is also a dystonic head tremor. The underlying mechanisms for cervical dystonia and dystonic tremor are not clear, and treatments are limited. CASE REPORT: In the present cases, two females with head tremor starting in adolescence developed worsening symptoms of cervical dystonia with dystonic tremor in their 60s...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/28054172/the-occurrence-of-lateral-shift-in-cervical-dystonia
#19
Marcello Esposito, Silvio Peluso, Raffaele Dubbioso, Roberto Allocca, Filippo Iorillo, Antonietta Coppola, Lucio Santoro
Aim of this study is to identify factors contributing the occurrence of neck lateral shift (LS) in patients with cervical dystonia (CD). A retrospective analysis focused on the treatment with botulinum toxin (BTX) was conducted on 38 consecutive idiopathic CD patients comparing subjects with and without LS. The main result was the evidence of a significantly higher BTX inter-side dose difference in patients with LS suggesting that this uncommon phenotype may be an artifact of chronic therapy with BTX.
January 4, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28017556/bilateral-globus-pallidus-internus-deep-brain-stimulation-for-dyskinetic-cerebral-palsy-supports-success-of-cochlear-implantation-in-a-5-year-old-ex-24%C3%A2-week-preterm-twin-with-absent-cerebellar-hemispheres
#20
Jean-Pierre Lin, Margaret Kaminska, Sarah Perides, Hortensia Gimeno, Lesley Baker, Daniel E Lumsden, Anzell Britz, Sandra Driver, Alec Fitzgerald-O'Connor, Richard Selway
BACKGROUND: Early onset dystonia (dyskinesia) and deafness in childhood pose significant challenges for children and carers and are the cause of multiple disability. It is particularly tragic when the child cannot make use of early cochlear implantation (CI) technology to relieve deafness and improve language and communication, because severe cervical and truncal dystonia brushes off the magnetic amplifier behind the ears. Bilateral globus pallidus internus (GPi) deep brain stimulation (DBS) neuromodulation can reduce dyskinesia, thus supporting CI neuromodulation success...
January 2017: European Journal of Paediatric Neurology: EJPN
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