Read by QxMD icon Read

Tremor and Other Hyperkinetic Movements

Juliana Gomez, Dongkwan Jin
Background: Anti-GAD-related cerebellar ataxia has rarely been described as an acute cause of autoimmune ataxia. Phenomenology Shown: A young female who acutely developed anti-GAD-associated ataxia with magnetic resonance imaging (MRI) showing cerebellar edema and follow-up MRI 6 months later showing cerebellar atrophy. Educational Value: Recognizing that anti-GAD-associated cerebellar ataxia can present in a young adult as an acute and severe cause of ataxia, with cerebellar changes evident on MRI...
2018: Tremor and Other Hyperkinetic Movements
Valentina Fioravanti, Igor Lamberti, Nicola Bottoni, Francesco Cavallieri, Franco Valzania, Matteo Pugnaghi
Background: Rarely, cardiac pacemaker implant can lead to the development of involuntary hyperkinetic movement disorders localized to the abdominal wall or the diaphragm. Phenomenology Shown: We report a case of a 79-year-old female who developed rhythmic continuous clonic right abdominal movements caused by cardiac pacemaker lead dislodgement. Educational Value: Our case highlights that, in the differential diagnosis of hyperkinetic abdominal movement disorder, the presence and the possible pathogenic role of a cardiac pacemaker should be kept in mind...
2018: Tremor and Other Hyperkinetic Movements
Sanjay Pandey, Priyanka Tater
Background: Lingual dystonia is extremely rare following stroke. We describe clinical features and neuroimaging findings in a series of 11 patients (seven acute and four chronic) with post-stroke lingual dystonia and review the literature. Methods: This was a case series using a preformed structured proforma and review of literature using a PubMed search. Results: In our case series, all patients had dysarthria as a presenting symptom. Seven patients had acute presentation (six had an ischemic infarct and one had thalamic hemorrhage) and four had chronic presentation (all had infarct)...
2018: Tremor and Other Hyperkinetic Movements
Farhan Augustine, Harvey S Singer
Background: Anatomically, cortical-basal ganglia-thalamo-cortical (CBGTC) circuits have an essential role in the expression of tics. At the biochemical level, the proper conveyance of messages through these circuits requires several functionally integrated neurotransmitter systems. In this manuscript, evidence supporting proposed pathophysiological abnormalities, both anatomical and chemical is reviewed. In addition, the results of standard and emerging tic-suppressing therapies affecting nine separate neurotransmitter systems are discussed...
2018: Tremor and Other Hyperkinetic Movements
Arjun Tarakad, Joseph Jankovic
Background: There is longstanding controversy surrounding the possible link between essential tremor (ET) and Parkinson's disease (PD). Inconsistent and unreliable diagnostic criteria may in part account for some of the difficulties in defining the relationship between these two common movement disorders. Methods: References for this systematic review were identified using PubMed with the search terms "essential tremor" AND "Parkinson's disease" with articles published in English between 1960 and September 2018 included...
2018: Tremor and Other Hyperkinetic Movements
Vasileios Siokas, Athina-Maria Aloizou, Zisis Tsouris, Amalia Michalopoulou, Alexios-Fotios A Mentis, Efthimios Dardiotis
Background: Dystonia is a movement disorder with high heterogeneity regarding phenotypic appearance and etiology that occurs in both sporadic and familial forms. The etiology of the disease remains unknown. However, there is increasing evidence suggesting that a small number of gene alterations may lead to dystonia. Although pathogenic variants to the familial type of dystonia have been extensively reviewed and discussed, relatively little is known about the contribution of single-nucleotide polymorphisms (SNPs) to dystonia...
2018: Tremor and Other Hyperkinetic Movements
Massimo Marano, Francesco Motolese, Federica Consoli, Alessandro De Luca, Vincenzo Di Lazzaro
Background: Paroxysmal movement disorders are rare and heterogeneous genetic conditions characterized by the recurrence of transient involuntary movements. Phenomenology Shown: The phenomenology of a paroxysmal kinesigenic dyskinesia in a young professional athlete. Educational Value: Providing basic clinical and genetic elements for the early recognition and diagnosis of a rare movement disorder.
2018: Tremor and Other Hyperkinetic Movements
Olwen C Murphy, Orna O'Toole, Collette K Hand, Aisling M Ryan
No abstract text is available yet for this article.
2018: Tremor and Other Hyperkinetic Movements
Christina Mousele, Paul Bentley, Yen F Tai
Background: Orthostatic tremor (OT) is a weight-bearing hyperkinetic disorder characterized by unsteadiness while standing that is relieved when sitting or walking. Case report: A 66-year-old male presented with a 5 year-history of tremor in his abdomen, but only when he stood in a stationary position. The tremor disappeared when he stood or walked. On examination, he had palpable tremor in his rectus abdominis and gastrocnemius virtually instantaneously after standing...
2018: Tremor and Other Hyperkinetic Movements
Paula Marrero-González, Berta Pascual-Sedano, Alejandro Martínez-Domeño, L Estefanía Díaz-Polo, Esther Granell, Rodrigo Rodríguez, Alexandre Gironell, Daniel Guisado-Alonso
Background: Propriospinal myoclonus is an infrequent type of hyperkinetic movement that can be commonly idiopathic but also may occur after spinal cord lesions. Phenomenology Shown: We describe an 8-year-old female showing repetitive flexor and extensor arrhythmic brief jerks of the trunk, compatible with propriospinal myoclonus secondary to cervical myelopathy. Educational Value: Isolated propriospinal myoclonus may be the clinical sign that leads to the diagnosis of incipient myelopathy...
2018: Tremor and Other Hyperkinetic Movements
Pedro Manzke, Talyta Grippe, Georgia L Tavares, Lucas C Leal, Emmanuel Roze, Emmanuelle Apartis, Ronaldo Maciel Dias, André G F Ferreira
Background: The clinical spectrum of anti-glutamic acid decarboxylase (GAD) antibody-associated neurologic syndromes is expanding, with focal, generalized, and atypical forms. Case Report: We describe a 59-year-old female showing continuous right lower limb myoclonus and mild encephalopathy. These symptoms started 2 weeks prior to evaluation. The patient had great improvement with intravenous steroids. An autoantibody panel was positive for anti-GAD. Discussion: Various clinical manifestations, including myoclonus, may relate to anti-GAD antibodies...
2018: Tremor and Other Hyperkinetic Movements
Ashutosh Gupta, Suman Kushwaha
Background: Drug-induced tremors after long-term administration of anti-epileptics have been described in the literature. Such tremors are usually postural or action in nature with infrequent resting nature. Case Report: A 23-year-old female presented in status epilepticus. Past and family histories were negative for seizures. She was managed per protocol with valproate. Within hours, she developed resting tremors. The tremors subsided on changing the anti-epileptic...
2018: Tremor and Other Hyperkinetic Movements
Christine Y Kim, Elan D Louis
Background: The diagnosis of dystonia can be clinically challenging due to its heterogeneous presentation; essential tremor (ET) is a more common neurological disorder, but may be mimicked by other movement disorders, including dystonia, leading to misdiagnosis. Phenomenology Shown: In three patients with hand tremor, two with prior diagnoses of ET, we present examples of "spooning" of the hands, characterized by wrist flexion and metacarpophalangeal hyperextension...
2018: Tremor and Other Hyperkinetic Movements
Laurent Bailly, Marie Mongin, Cecile Delorme, Emmanuelle Apartis, Samir Saheb, Karine Viala, Emmanuel Roze
Background: Tremor is an underrecognized feature in certain neuropathy subtypes. Phenomenology shown: We show a patient with a disabling neuropathic tremor and mild cerebellar syndrome associated with chronic inflammatory demyelinating polyneuropathy (CIDP) and anti-neurofascin-155 (NF155) antibodies. Educational value: Anti-NF155 testing should be considered in patients with CIDP and disabling tremor because of therapeutic implications.
2018: Tremor and Other Hyperkinetic Movements
Rebecca B Beck, Simone L Kneafsey, Shruti Narasimham, Sean O'Riordan, Tadashi Isa, Michael Hutchinson, Richard B Reilly
Background: Cervical dystonia is a hyperkinetic movement disorder of unknown cause. Symptoms of cervical dystonia have been induced in animals in which the integrity of the nigro-tectal pathway is disrupted, resulting in reduced inhibition of the deep layers of the superior colliculus. This same pathway is believed to play a critical role in saccade generation, particularly visually guided, express saccades. It was hypothesized that individuals with cervical dystonia would present with a higher frequency of express saccades and more directional errors...
2018: Tremor and Other Hyperkinetic Movements
Liam S Carroll, Thomas H Massey, Mark Wardle, Kathryn J Peall
Background: Dentatorubral-pallidoluysian atrophy (DRPLA) is a rare, autosomal dominantly inherited disorder characterized by myoclonus, epilepsy, ataxia, and dementia. Diagnosis is challenging due to the heterogeneous presentation and symptomatic overlap with other spinocerebellar ataxias. Symptoms vary according to age of onset, with a mean age at onset of 31 years. A CAG repeat expansion in the ATN1 gene results in neuronal intranuclear inclusions, variable neuronal loss, and astrocytosis in the globus pallidus, dentate and red nuclei...
2018: Tremor and Other Hyperkinetic Movements
Jannik Prasuhn, Georg Royl, Klaus P Wandinger, Norbert Brüggemann, Alexander Neumann, Thomas F Münte
Background: Influenza A infections are a rare cause of movement disorders. Previously described patients have suffered from acute-onset myoclonus and/or dystonia or post-viral parkinsonism. Case Report: We present the case of a 74-year-old female patient with transient generalized chorea due to influenza A-mediated encephalopathy. Discussion: We discuss whether the clinical presentation and the magnetic resonance imaging changes may be attributable to cytokine-mediated encephalopathy or to direct cytotoxic effects of the virus...
2018: Tremor and Other Hyperkinetic Movements
Ming-Kai Pan, Chun-Lun Ni, Yeuh-Chi Wu, Yong-Shi Li, Sheng-Han Kuo
Background: Tremor is the most common movement disorder; however, the pathophysiology of tremor remains elusive. While several neuropathological alterations in tremor disorders have been observed in post-mortem studies of human brains, a full understanding of the relationship between brain circuitry alterations and tremor requires testing in animal models. Additionally, tremor animal models are critical for our understanding of tremor pathophysiology, and/or to serve as a platform for therapy development...
2018: Tremor and Other Hyperkinetic Movements
Ana Vives-Rodriguez, Christine Y Kim, Elan D Louis
Background: Primary writing tremor (PWT) is a rare condition; tremor occurs primarily while writing rather than during other tasks. Phenomenology Shown: We illustrate the phenomenology of PWT and point out associated subtle dystonic posturing on neurological examination. Educational Value: PWT is a tremor disorder that shares clinical features with both dystonia and essential tremor.
2018: Tremor and Other Hyperkinetic Movements
Aparna Wagle Shukla, Wei Hu, Zakia Jabarkheel, Syed Shah, Joseph Legacy, Kamilia Nozile Firth, Pam Zeilman, Kelly Foote, Michael S Okun
No abstract text is available yet for this article.
2018: Tremor and Other Hyperkinetic Movements
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"