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Essential tremor: beyond the motor features.

Essential tremor: beyond the motor features.

Authors :
Chandran V
Pal PK
Source :
Parkinsonism & related disorders [Parkinsonism Relat Disord] 2012 Jun; Vol. 18 (5), pp. 407-13. Date of Electronic Publication: 2012 Jan 02.
Publication Year :
2012

Abstract

There is a growing evidence to suggest that apart from motor features, patients with Essential Tremor (ET) may have significant non-motor features. This review critically analyzes the available evidence of the various non-motor symptoms in patients with ET. Apart from tremor, patients with ET have been reported to have: (i) cognitive abnormalities characterized by mild frontal dysfunction that may have a functional impact, (ii) an association with dementia (both prevalent and incident) among those with late onset of tremor (>65 years), (iii) a higher prevalence of anxiety and an anxious and worrisome personality type, (iv) depressive symptomatology and may even have depression as a premotor symptom, (v) poor sleep quality and (vi) subjective hearing impairment. It is controversial whether olfactory dysfunction occurs in ET and its utility as a diagnostic aid. The biological basis for each of these observations requires further clarification and some findings need confirmation in population-based studies. However the available evidence is sufficient to support the notion that ET can no longer be considered as a pure motor disorder and further studies of these non-motor aspects will go a long way in understanding and comprehensively treating ET.<br /> (Copyright © 2011 Elsevier Ltd. All rights reserved.)

Details

Language :
English
ISSN :
1873-5126
Volume :
18
Issue :
5
Database :
MEDLINE
Journal :
Parkinsonism & related disorders
Publication Type :
Academic Journal
Accession number :
22217558
Full Text :
https://doi.org/10.1016/j.parkreldis.2011.12.003