ParkinsonCanadaV1, France, Analysis, bibRecord, 000259

Characterization of subclinical tremor in Parkinson's disease

Identifieur interne : 000259 ( France/Analysis ); précédent : 000258; suivant : 000260

Characterization of subclinical tremor in Parkinson's disease

Auteurs : Anne Beuter [France] ; Emilie Barbo [Canada] ; Robert Rigal [Canada] ; Pierre J. Blanchet [Canada]

Source :

Movement disorders [ 0885-3185 ] ; 2005.

RBID : Pascal:05-0443834

Descripteurs français

Pascal (Inist)
- Système nerveux pathologie, Tremblement, Parkinson maladie, Asymptomatique, Laser.

English descriptors

KwdEn :
- Asymptomatic, Laser, Nervous system diseases, Parkinson disease, Tremor.

Abstract

The physiological or pathological nature of subclinical tremor amplitude in Parkinson's disease (PD) is not well established. We analyzed characteristics of resting and postural tremors of subclinical amplitude in 17 patients with idiopathic PD without visible resting tremor, having a postural tremor in their least-affected hand rated 0 (12 subjects) or 1 (5 subjects) on Item 21 of the Unified Parkinson's Disease Rating Scale, compared to 17 control subjects matched for age, sex, and handedness. Tremor was recorded at the tip of the index finger using a displacement laser transducer. Overall results show that subclinical resting tremor in PD is significantly different from physiological tremor in terms of amplitude fluctuation, frequency dispersion, harmonic index, and proportional power in 4 to 6 Hz. No significant differences were found for postural tremor. These differences appear to originate mainly from patients with the mixed form of the disease. This study also confirms the preservation of physiological tremor likely originating from a distinct central oscillator in PD. The use of this method in the early and detailed characterization of PD tremors when amplitude is still within normal limits is proposed.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000884
to stream PascalFrancis, to step Curation: 000439
to stream PascalFrancis, to step Checkpoint: 000813
to stream Main, to step Merge: 002E81
to stream Main, to step Curation: 002B41
to stream Main, to step Exploration: 002B41
to stream France, to step Extraction: 000259

Links to Exploration step

Pascal:05-0443834

Le document en format XML

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<front><div type="abstract" xml:lang="en">The physiological or pathological nature of subclinical tremor amplitude in Parkinson's disease (PD) is not well established. We analyzed characteristics of resting and postural tremors of subclinical amplitude in 17 patients with idiopathic PD without visible resting tremor, having a postural tremor in their least-affected hand rated 0 (12 subjects) or 1 (5 subjects) on Item 21 of the Unified Parkinson's Disease Rating Scale, compared to 17 control subjects matched for age, sex, and handedness. Tremor was recorded at the tip of the index finger using a displacement laser transducer. Overall results show that subclinical resting tremor in PD is significantly different from physiological tremor in terms of amplitude fluctuation, frequency dispersion, harmonic index, and proportional power in 4 to 6 Hz. No significant differences were found for postural tremor. These differences appear to originate mainly from patients with the mixed form of the disease. This study also confirms the preservation of physiological tremor likely originating from a distinct central oscillator in PD. The use of this method in the early and detailed characterization of PD tremors when amplitude is still within normal limits is proposed.</div>
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   |texte=   Characterization of subclinical tremor in Parkinson's disease
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	La maladie de Parkinson au Canada (serveur d'exploration)
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La maladie de Parkinson au Canada (serveur d'exploration)

Characterization of subclinical tremor in Parkinson's disease

Characterization of subclinical tremor in Parkinson's disease

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri