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Movement Disorders Clinical Practice

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https://www.readbyqxmd.com/read/29226177/color-discrimination-errors-associate-with-axial-motor-impairments-in-parkinson-s-disease
#1
Nicolaas I Bohnen, Jacob Haugen, Andrew Ridder, Vikas Kotagal, Roger L Albin, Kirk A Frey, Martijn L T M Müller
Background: Visual function deficits are more common in imbalance-predominant compared to tremor-predominant PD suggesting a pathophysiological role of impaired visual functions in axial motor impairments. Objective: To investigate the relationship between changes in color discrimination and motor impairments in PD while accounting for cognitive or other confounder factors. Methods: PD subjects (n=49, age 66.7±8.3 years; Hoehn & Yahr stage 2...
November 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/29082270/increased-blinking-may-be-a-precursor-of-blepharospasm-a-longitudinal-study
#2
Antonella Conte, Gina Ferrazzano, Giovanni Defazio, Giovanni Fabbrini, Mark Hallett, Alfredo Berardelli
OBJECTIVE: The aim of this five-year longitudinal study was to investigate whether patients with increased blinking develop orbicularis oculi muscle spasms. METHODS: Eleven patients who initially manifested increased blinking alone were clinically and neurophysiologically re-evaluated five years later. RESULTS: By the five-year follow-up assessment, nine of the 11 patients had developed orbicularis oculi muscle spasms. The blink reflex recovery cycle became abnormal whereas somatosensory temporal discrimination, already abnormal at the first evaluation, did not significantly change...
September 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/29057292/positional-tremor-and-its-treatment
#3
Sara M Schaefer, Mark Hallett, Barbara P Karp, Daniel B DiCapua, Sule Tinaz
BACKGROUND: Positional tremors arise when a patient's tremor is brought on during specific positioning of the involved body part. They can be distinguished from postural tremor, wherein a patient's tremor is elicited in any posture, and from task-specific tremor, wherein a patient's tremor occurs only during a certain task. CASES: We describe two cases of positional tremor that are markedly improved with botulinum toxin injection. DISCUSSION: The term "positional" is a valuable descriptor for tremors...
September 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28435846/psychometric-properties-and-characteristics-of-the-north-east-visual-hallucinations-interview-in-parkinson-s-disease
#4
Kelsey A Holiday, Eva Pirogovsky-Turk, Vanessa L Malcarne, J Vincent Filoteo, Irene Litvan, Stephanie L Lessig, David Song, Dawn M Schiehser
BACKGROUND: Visual Hallucinations (VH) are a common symptom experienced by individuals with Parkinson's disease (PD); however, a validated measure of VH has yet to be established for this population. The North-East Visual Hallucinations Interview (NEVHI), a promising VH measure, has not been well validated in PD. The aim of this study was to evaluate the convergent and discriminant validity of the NEVHI as well as the proportional identification and characteristics of VH in PD. METHODS: One hundred seventeen individuals with PD completed the NEVHI as well as evaluations of psychological, cognitive, motor, and visual functioning as measures of convergent and divergent validity...
September 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28966932/frequency-of-gba-variants-in-autopsy-proven-multiple-system-atrophy
#5
Miriam Sklerov, Un Jung Kang, Christopher Liong, Lorraine Clark, Karen Marder, Michael Pauciulo, William C Nichols, Wendy K Chung, Lawrence S Honig, Etty Cortes, Jean Paul Vonsattel, Roy N Alcalay
BACKGROUND: Multiple system atrophy (MSA) is marked by abnormal inclusions of alpha-synuclein in oligodendrogliocytes. Etiology remains unknown. Variants in the glucocerebrosidase gene have been associated with other synucleinopathies, dementia with Lewy bodies and Parkinson disease. It is unclear whether glucocerebrosidase variants are associated with MSA. OBJECTIVES: To analyze the frequency of glucocerebrosidase gene variants among autopsy-proven cases of MSA at a brain bank in New York City...
July 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28920068/tetrabenazine-versus-deutetrabenazine-for-huntington-s-disease-twins-or-distant-cousins
#6
Filipe B Rodrigues, Gonçalo S Duarte, João Costa, Joaquim J Ferreira, Edward J Wild
BACKGROUND: Tetrabenazine is the only US Food and Drug Administration-approved drug for Huntington's disease, and deutetrabenazine was recently tested against placebo. A switching-trial from tetrabenazine to deutetrabenazine is underway, but no head-to-head, blinded, randomized controlled trial is planned. Using meta-analytical methodology, the authors compared these molecules. METHODS: RCTs comparing tetrabenazine or deutetrabenazine with placebo in Huntington's disease were searched...
July 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28920067/a-history-of-dystonia-ancient-to-modern
#7
REVIEW
Rachel E Newby, Deborah E Thorpe, Peter A Kempster, Jane E Alty
Before 1911, when Hermann Oppenheim introduced the term dystonia, this movement disorder lacked a unifying descriptor. While words like epilepsy, apoplexy, and palsy have had their meanings since antiquity, references to dystonia are much harder to identify in historical documents. Torticollis is an exception, although there is difficulty distinguishing dystonic torticollis from congenital muscular torticollis. There are, nevertheless, possible representations of dystonia in literature and visual art from the pre-modern world...
July 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28713844/epidemiology-diagnosis-and-management-of-neurogenic-orthostatic-hypotension
#8
Jose-Alberto Palma, Horacio Kaufmann
BACKGROUND: Orthostatic hypotension (OH) is a sustained fall in blood pressure on standing which can cause symptoms of organ hypoperfusion. OH is associated with increased morbidity and mortality and leads to a significant number of hospital admissions particularly in the elderly (233 per 100,000 patients over 75 years of age in the US). OH can be due to volume depletion, blood loss, large varicose veins, medications, or due to defective activation of sympathetic nerves and reduced norepinephrine release upon standing (i...
May 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28944257/affective-correlates-of-psychosis-in-parkinson-s-disease
#9
Stewart A Factor, Michael K Scullin, Alan Freeman, Donald L Bliwise, William M McDonald, Felicia C Goldstein
OBJECTIVE: To examine the nature of the association between affective disorders and psychosis in Parkinson's disease (PD). BACKGROUND: In PD, psychosis and affective disorders are common and independently impact quality of life and mortality. Both depression and psychosis are correlated with the occurrence of cognitive dysfunction, suggesting that they may share neurobiological substrates. Anxiety has not been examined as a correlate of psychosis. METHODS: 144 PD subjects were evaluated with the Schedule for Assessment of Positive Symptoms to assess psychotic features, while depression and anxiety were examined by the Structured Clinical Interview for DSM-IV-TR (SCID) and self-assessment scales Beck Depression Inventory II (BDI-II) and Beck Anxiety Inventory (BAI)...
March 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28944256/depressive-symptoms-are-frequent-in-atypical-parkinsonian-disorders
#10
Leonardo Almeida, Bilal Ahmed, Roger Walz, Sol De Jesus, Addie Patterson, Daniel Martinez-Ramirez, David Vaillancourt, Dawn Bowers, Herbert Ward, Michael S Okun, Nikolaus R McFarland
OBJECTIVE: To compare the incidence and prevalence of depressive symptoms in atypical parkinsonian (APD) syndromes versus Parkinson disease (PD). METHODS: In a large retrospective patient cohort we analyzed the incidence and prevalence of depressive symptoms using the Beck Depression Inventory (BDI) and evaluated subjects longitudinally on subsequent visits. For individuals who followed in subsequent visits we calculated incidence rates in person-years as a measure of incidence...
March 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28924578/effects-of-subthalamic-nucleus-deep-brain-stimulation-on-objective-sleep-outcomes-in-parkinson-s-disease
#11
Amy W Amara, Harrison C Walker, Allen Joop, Gary Cutter, Jennifer L DeWolfe, Susan M Harding, David G Standaert
BACKGROUND: Sleep dysfunction is a common and disabling non-motor symptom in Parkinson's disease. Deep brain stimulation (DBS) of the subthalamic nucleus (STN) improves motor symptoms and subjective sleep in PD, but alternative stimulation parameters to optimize sleep have not been explored. We hypothesized that low frequency STN DBS would improve objective sleep more than conventional settings. METHODS: Twenty PD subjects with STN DBS (18 unilateral, 2 bilateral) underwent 3 non-consecutive nights of polysomnography: DBS off; DBS high frequency (≥130 Hz); and DBS low frequency (60 Hz)...
March 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28451624/tics-in-the-pediatric-population-pragmatic-management
#12
REVIEW
Christos Ganos, Davide Martino, Tamara Pringsheim
BACKGROUND: Primary tic disorders, notably Tourette syndrome, are very common movement disorders in childhood. However, the management of such patients still poses great therapeutic challenges to medical professionals. METHODS: Based on a synthesis of the available guidelines published in Europe, Canada, and the United States, coupled with more recent therapeutic developments, the authors provide a pragmatic guide to aid clinicians in deciding when and how to treat patients who have primary tic disorders...
March 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28367478/central-hypoventilation-in-progressive-supranuclear-palsy
#13
Kory S Herrick, Randy Woltjer, Thao Pham, Megan Chalupsky, Amie L Hiller
Central hypoventilation, also known as Ondine's curse, results from an impairment of the autonomic respiratory drive. It is characterized by an attenuated or absent respiratory response to hypoxemia and hypercapnia with preservation of volitional respiratory function. RJ was a 75-year-old woman with a diagnosis of probably PSP who developed central hypoventilation approximately four years after her initial onset of symptoms. Brain MRI showed no evidence of medullary lesions, one of the more common causes of adult onset central hypoventilation...
January 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28345011/cross-cultural-differences-of-the-non-motor-symptoms-studied-by-the-traditional-chinese-version-of-the-international-parkinson-and-movement-disorder-society-unified-parkinson-s-disease-rating-scale
#14
Rwei-Ling Yu, Ruey-Meei Wu, Anne Y Y Chan, Vincent Mok, Yih-Ru Wu, Barbara C Tilley, Sheng Luo, Lu Wang, Nancy R LaPelle, Glenn T Stebbins, Christopher G Goetz
BACKGROUND: Given the importance of ethnic differences in the evaluation of various aspects of symptoms in patients with Parkinson's disease (PD), we present the formal procedure for completing the traditional Chinese translation of the International and Parkinson and Movement Disorder Society/UPDRS (MDS-UPDRS) and highlight the discrepancy in nonmotor symptoms (NMS) between patients in Eastern and Western countries. METHODS: A total of 350 native Chinese-speaking PD patients were recruited from multiple hospitals in Eastern countries; they completed the MDS-UPDRS...
January 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28239615/apomorphine-subcutaneous-injection-for-the-management-of-morning-akinesia-in-parkinson-s-disease
#15
Stuart Isaacson, Mark Lew, William Ondo, Jean Hubble, Thomas Clinch, Fernando Pagan
BACKGROUND: In patients with motor fluctuations complicating Parkinson's disease (PD), delays in time-to-ON with levodopa are common. This open-label study aimed to assess the effect of apomorphine on time-to-ON in PD patients with morning akinesia. METHODS: The safety population included 127 enrolled patients, and the full analysis set (FAS) included 88 patients. Patients completed a 7-day levodopa baseline period recording their time-to-ON following each morning dose of levodopa...
January 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28164144/pure-autonomic-failure-versus-prodromal-dysautonomia-in-parkinson%C3%A2-s-disease-insights-from-the-bedside
#16
Aristide Merola, Alberto J Espay, Maurizio Zibetti, Alberto Romagnolo, Michela Rosso, Simona Maule, Leonardo Lopiano
No abstract text is available yet for this article.
January 2017: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28042592/paroxysmal-nonepileptic-events-in-glut1-deficiency
#17
Joerg Klepper, Baerbel Leiendecker, Christin Eltze, Nicole Heussinger
View Supplementary Video Movement disorders are a major feature of Glut1 deficiency. As recently identified in adults with paroxysmal exercise-induced dystonia, similar events were reported in pediatric Glut1 deficiency. In a case series, parent videos of regular motor state and paroxysmal events were requested from children with Glut1 deficiency on clinical follow-up. A questionnaire was sent out to 60 families. Videos of nonparoxysmal/paroxysmal states in 3 children illustrated the ataxic-dystonic, choreatiform, and dyskinetic-dystonic nature of paroxysmal events...
November 2016: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/28239614/leg-movements-during-general-anesthesia
#18
Nora Vanegas, Kareem Zaghloul, Mark Hallett, Codrin Lungu
No abstract text is available yet for this article.
September 2016: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/27774496/parkinson-s-impulse-control-scale-for-the-severity-rating-of-impulse-control-behaviors-in-parkinson-s-disease-a-semistructured-clinical-assessment-tool
#19
David Okai, Sally Askey-Jones, Joel Mack, Anne Martin, Kallol Ray Chaudhuri, Michael Samuel, Anthony S David, Richard G Brown
BACKGROUND: Impulse-control behaviors (ICBs) are increasingly recognized in Parkinson's disease (PD) as drug-related effects of dopaminergic mediation that occur in 15% to 35% of patients with PD. The authors describe the design and evaluation of a new, clinician-rated severity scale for the assessment of syndromal and subsyndromal forms of impulse-control disorders (ICDs), simple (punding) and complex (hobbyism) repetitive behaviors, and compulsive overuse of medication (dopamine dysregulation syndrome)...
September 2016: Movement Disorders Clinical Practice
https://www.readbyqxmd.com/read/27713907/utility-of-electronic-medical-record-for-recruitment-in-clinical-research-from-rare-to-common-disease
#20
Tapan Thacker, Ashley R Wegele, Sarah Pirio Richardson
BACKGROUND: Recruitment for clinical trials is a major challenge. Movement disorders, which do not have associated diagnostic laboratory tests, may be especially prone to inaccuracy in coding. Our objective was to evaluate the accuracy of diagnostic codes such as cervical dystonia (CD) and PD in an electronic medical record. METHODS: Retrospective chart review was performed to confirm the ICD-9 diagnoses of PD, CD and diabetes mellitus type 2 (DM-2), using published clinical diagnostic criteria (PD, CD) and hemoglobin A1c ≥ 6...
September 2016: Movement Disorders Clinical Practice
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