Bradykinesia in dystonic hand tremor: kinematic analysis and clinical rating

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F24%3A00081041" target="_blank" >RIV/00159816:_____/24:00081041 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14110/24:00136820

Result on the web

<a href="https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2024.1395827/full" target="_blank" >https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2024.1395827/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fnhum.2024.1395827" target="_blank" >10.3389/fnhum.2024.1395827</a>

Result language

angličtina

Original language name

Bradykinesia in dystonic hand tremor: kinematic analysis and clinical rating

Original language description

Introduction Bradykinesia is an essential diagnostic criterion for Parkinson&apos;s disease (PD) but is frequently observed in many non-parkinsonian movement disorders, complicating differential diagnosis, particularly in disorders featuring tremors. The presence of bradykinetic features in the subset of dystonic tremors (DT), either &quot;pure&quot; dystonic tremors or tremors associated with dystonia, remains currently unexplored. The aim of the current study was to evaluate upper limb bradykinesia in DT patients, comparing them with healthy controls (HC) and patients with PD by observing repetitive finger tapping (FT).Methods The protocol consisted of two main parts. Initially, the kinematic recording of repetitive FT was performed using optical hand tracking system (Leap Motion Controller). The values of amplitude, amplitude decrement, frequency, frequency decrement, speed, acceleration and number of halts of FT were calculated. Subsequently, three independent movement disorder specialists from different movement disorders centres, blinded to the diagnosis, rated the presence of FT bradykinesia based on video recordings.Results Thirty-six subjects participated in the study (12 DT, 12 HC and 12 early-stage PD). Kinematic analysis revealed no significant difference in the selected parameters of FT bradykinesia between DT patients and HC. In comparisons between DT and PD patients, PD patients exhibited bigger amplitude decrement and slower FT performance. In the blinded clinical assessment, bradykinesia was rated, on average, as being present in 41.6% of DT patients, 27.7% of HC, and 91.7% of PD patients. While overall inter-rater agreement was moderate, weak agreement was noted within the DT group.Discussion Clinical ratings indicated signs of bradykinesia in almost half of DT patients. The objective kinematic analysis confirmed comparable parameters between DT and HC individuals, with more pronounced abnormalities in PD across various kinematic parameters. Interpretation of bradykinesia signs in tremor patients with DT should be approached cautiously and objective motion analysis might complement the diagnostic process and serve as a decision support system in the choice of clinical entities.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in Human Neuroscience

ISSN

1662-5161

e-ISSN

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Volume of the periodical

18

Issue of the periodical within the volume

JUN 2024

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

1395827

UT code for WoS article

001255206600001

EID of the result in the Scopus database

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