How Do I Assess Tremor Using Novel Technology?

Longardner, Katherine; Undurraga, Felipe Vial; Nahab, Fatta B.; Hallett, Mark; Haubenberger, Dietrich

doi:10.1002/mdc3.12818

Cited by 8 publications

(5 citation statements)

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“…46 A decrease in tremor frequency after inertial loading is a specific finding 47 48 (see Longardner et al for an instructional video on how to conduct this test properly). 49 A higher frequency (>8 Hz) also points towards EPT. Finally, polymyography may be helpful when selecting appropriate muscles for botulinum toxin treatment in patients with (dystonic) tremor.…”

Section: Step 3: Is Polymyography Indicated?mentioning

confidence: 97%

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Systematic clinical approach for diagnosing upper limb tremor

Wardt

Stouwe

Dirkx

et al. 2020

J Neurol Neurosurg Psychiatry

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Tremor is the most common movement disorder worldwide, but diagnosis is challenging. In 2018, the task force on tremor of the International Parkinson and Movement Disorder Society published a consensus statement that proposes a tremor classification along two independent axes: a clinical tremor syndrome and its underlying aetiology. In line with this statement, we here propose a stepwise diagnostic approach that leads to the correct clinical and aetiological classification of upper limb tremor. We also describe the typical clinical signs of each clinical tremor syndrome. A key feature of our algorithm is the distinction between isolated and combined tremor syndromes, in which tremor is accompanied by bradykinesia, cerebellar signs, dystonia, peripheral neuropathy or brainstem signs. This distinction subsequently informs the selection of appropriate diagnostic tests, such as neurophysiology, laboratory testing, structural and dopaminergic imaging and genetic testing. We highlight treatable metabolic causes of tremor, as well as drugs and toxins that can provoke tremor. The stepwise approach facilitates appropriate diagnostic testing and avoids unnecessary investigations. We expect that the approach offered in this article will reduce diagnostic uncertainty and increase the diagnostic yield in patients with tremor.

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Section: Step 3: Is Polymyography Indicated?mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

Systematic clinical approach for diagnosing upper limb tremor

Wardt

Stouwe

Dirkx

et al. 2020

J Neurol Neurosurg Psychiatry

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show abstract

“…When performing this test, it is important to restrict motion to one joint to avoid confuscating wrist tremor with tremor from neighboring joints. A video of this method has been published [93].…”

Section: Electrophysiologic Diagnosis Of Pathologic Tremormentioning

confidence: 99%

Tremor rating scales and laboratory tools for assessing tremor

Elble

Ondo

2022

Journal of the Neurological Sciences

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“…Digitized amplitudes captured via inertial sensors correlate well with visual clinical rating scales of tremor severity, and are therefore inherently valid to quantify tremor severity [22]. Practical guidelines are available to the clinician how to deploy transducers in the assessment of tremor [23]. In addition to the objective quantification of tremor amplitudes as measure of severity, the neurophysiological assessment of tremor relies on transducers, and is a critical element in the differential diagnosis of tremor syndromes and hyperkinetic movement disorders that may mimic tremor [24].…”

Section: Device-based Remote Tremor Measurement and Monitoringmentioning

confidence: 99%