Journal ArticleDOI
Consensus statement of the Movement Disorder Society on tremor
TLDR
The classification of tremor is based on the distinction between rest, postural, simple kinetic, and intention tremor (tremor during target-directed movements) as mentioned in this paper.Abstract:
This is a proposal of the Movement Disorder Society for a clinical classification of tremors. The classification is based on the distinction between rest, postural, simple kinetic, and intention tremor (tremor during target-directed movements). Additional data from a medical history and the results of a neurologic examination can be combined into one of the following clinical syndromes defined in this statement: enhanced physiologic tremor, classical essential tremor (ET), primary orthostatic tremor, task- and position-specific tremors, dystonic tremor, tremor in Parkinson's disease (PD), cerebellar tremor, Holmes' tremor, palatal tremor, drug-induced and toxic tremor, tremor in peripheral neuropathies, or psychogenic tremor. Conditions such as asterixis, epilepsia partialis continua, clonus, and rhythmic myoclonus can be misinterpreted as tremor. The features distinguishing these conditions from tremor are described. Controversial issues are outlined in a comment section for each item and thus reflect the open questions that at present cannot be answered on a scientific basis. We hope that this statement provides a basis for better communication among clinicians working in the field and stimulates tremor research.read more
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Journal ArticleDOI
Consensus Statement on the classification of tremors. from the task force on tremor of the International Parkinson and Movement Disorder Society
Kailash P. Bhatia,Peter G. Bain,Nin Bajaj,Rodger J. Elble,Mark Hallett,Elan D. Louis,Jan Raethjen,Maria Stamelou,Claudia M. Testa,Guenther Deuschl +9 more
TL;DR: Consensus criteria for classifying tremor disorders were published by the International Parkinson and Movement Disorder Society in 1998 but subsequent advances with regard to essential tremor, tremor associated with dystonia, and other monosymptomatic and indeterminate tremors make a significant revision necessary.
Journal ArticleDOI
Dependence of subthalamic nucleus oscillations on movement and dopamine in Parkinson's disease.
Ron Levy,Peter Ashby,William D. Hutchison,Anthony E. Lang,Andres M. Lozano,Jonathan O. Dostrovsky +5 more
TL;DR: It is suggested that the firing of STN neurones can be synchronized by 15-30 Hz cortical beta oscillatory activity, particularly when dopamine deficiency results in a higher background firing rate of STn neurones, and that this synchronization contributes to parkinsonian pathophysiology.
Journal ArticleDOI
A randomized trial of focused ultrasound thalamotomy for essential tremor
W. Jeffrey Elias,Nir Lipsman,William G. Ondo,Pejman Ghanouni,Young Gee Kim,Wonhee Lee,Michael L. Schwartz,Kullervo Hynynen,Andres M. Lozano,Binit B. Shah,Diane S. Huss,Robert F. Dallapiazza,Ryder P. Gwinn,Jennifer Witt,Susie Ro,Howard M. Eisenberg,Paul S. Fishman,Dheeraj Gandhi,Casey H. Halpern,Rosalind Chuang,Kim Butts Pauly,Travis S. Tierney,Michael T. Hayes,G. Rees Cosgrove,Toshio Yamaguchi,Keiichi Abe,Takaomi Taira,Jin Woo Chang +27 more
TL;DR: MRI-guided focused ultrasound thalamotomy reduced hand tremor in patients with essential tremor and secondary outcome measures assessing disability and quality of life improved with active treatment as compared with the sham procedure.
Journal ArticleDOI
The diagnosis of Parkinson's disease
TL;DR: Investigations of the diagnostic accuracy for Parkinson's disease in community-based samples of patients taking antiparkinsonian medication confirmed a diagnosis of parkinsonism in only 74% of patients, while clinicopathological studies based on brain bank material from the UK and Canada have shown that clinicians diagnose the disease incorrectly.
Journal ArticleDOI
Firing patterns and correlations of spontaneous discharge of pallidal neurons in the normal and the tremulous 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine vervet model of parkinsonism.
TL;DR: The results illustrate that MPTP treatment changes the pattern of activity and synchronization in the GPe and GPi, related to the symptoms of Parkinson's disease and especially to the parkinsonian tremor.
References
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