Positional Variability in Upper Limb Tremor in Both Essential and Dystonic Tremor: A Case Series
Julis Anang*
St. Boniface Clinic, Winnipeg, Manitoba, Canada
*Corresponding Author: Julius Anang, St. Boniface Clinic, Winnipeg, Manitoba, Canada.
Received: April 13, 2022 Published: April 29, 2022
Abstract
The MDS tasks force on tremor defines tremor as an involuntary, rhythmic, oscillatory movement of a body part classified along two axes based on clinical characteristics and etiology. This system allows for classification into various tremor subtypes and good description of specific tremor disorders. However, there are no studies looking at the variability of the tremor in positions other than resting, postural kinetic features and the potential utility in tremor rehabilitation. A study concluded that variability in tremor magnitude with limb position was not consistent with essential tremor. A high intra-assessment variability in tremor amplitude has previously been demonstrated in high amplitude essential tremor.Variability in amplitude and intensity are often considered to support a functional tremor. We demonstrate this positionality in five clinical cases previously diagnosed as essential tremor and hypothesize that this is not an uncommon feature of dystonic or essential tremor.
Keywords: Dystonic tremor, Essential tremor (ET), positional variability
Citation: Anang J. “Positional Variability in Upper Limb Tremor in Both Essential and Dystonic Tremor: A Case Series”. SVOA Neurology 2022, 3:3, 102-105.
