open access

Vol 47, No 6 (2013)
ARTYKUŁ ORYGINALNY
Submitted: 2012-10-02
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Tremor in neuropathies of different origin

Anna Wasielewska, Monika Rudzińska, Tomasz Tomaszewski, Krzysztof Banaszkiewicz, Magdalena Wójcik-Pędziwiatr, Małgorzata Dec-Cwiek, Anna Zajączkowska, Andrzej Izworski, Andrzej Szczudlik
DOI: 10.5114/ninp.2013.34695
·
Neurol Neurochir Pol 2013;47(6):525-533.

open access

Vol 47, No 6 (2013)
ARTYKUŁ ORYGINALNY
Submitted: 2012-10-02

Abstract

Background and purpose

Tremor accompanies some polyneuropathies, but its prevalence and its clinical and electrophysiological manifestations are not well known. The aim of the study was to assess the occurrence and characteristics of hand tremor in patients with polyneuropathy of different origins, as well as relations between the occurrence of tremors and clinical and neurographic findings of polyneuropathy.

Material and methods

Eighty-nine patients diagnosed with polyneuropathy of known aetiology, and 50 age- and sex-matched healthy volunteers were included in the study. All subjects were interviewed regarding the occurrence of tremor. Tremor was assessed clinically and objectively using a triaxial accelerometer and electromyographic (EMG) recordings. A load test with a weight of 500 g was performed in order to differentiate between enhanced physiological tremor (EPT) and essential tremor-like (ET-L) tremor.

Results

Tremor was found in 59.5% of patients in clinical assessment and in 74% of patients in objective evaluation, significantly more often than in controls (12%). Tremor was detected in all types of polyneuropathy apart from paraproteinaemic IgM polyneuropathy. Tremor was postural (70%), but resting (51%) or kinetic (32%) tremor was also present. In the majority of cases, the severity of the tremor was mild. Essential tremor-like tremor prevailed in the study group. The occurrence of hand tremor was not related to the axonal or demyelinating type of polyneuropathy, nor to the conduction velocity or other electrophysiological findings of the investigated upper limb nerves.

Conclusion

Tremor accompanies 60–70% of patients with polyneuropathy; it is mostly postural, ET-L type with mild severity, and unrelated to other typical clinical and electrophysiological findings of neuropathy.

Abstract

Background and purpose

Tremor accompanies some polyneuropathies, but its prevalence and its clinical and electrophysiological manifestations are not well known. The aim of the study was to assess the occurrence and characteristics of hand tremor in patients with polyneuropathy of different origins, as well as relations between the occurrence of tremors and clinical and neurographic findings of polyneuropathy.

Material and methods

Eighty-nine patients diagnosed with polyneuropathy of known aetiology, and 50 age- and sex-matched healthy volunteers were included in the study. All subjects were interviewed regarding the occurrence of tremor. Tremor was assessed clinically and objectively using a triaxial accelerometer and electromyographic (EMG) recordings. A load test with a weight of 500 g was performed in order to differentiate between enhanced physiological tremor (EPT) and essential tremor-like (ET-L) tremor.

Results

Tremor was found in 59.5% of patients in clinical assessment and in 74% of patients in objective evaluation, significantly more often than in controls (12%). Tremor was detected in all types of polyneuropathy apart from paraproteinaemic IgM polyneuropathy. Tremor was postural (70%), but resting (51%) or kinetic (32%) tremor was also present. In the majority of cases, the severity of the tremor was mild. Essential tremor-like tremor prevailed in the study group. The occurrence of hand tremor was not related to the axonal or demyelinating type of polyneuropathy, nor to the conduction velocity or other electrophysiological findings of the investigated upper limb nerves.

Conclusion

Tremor accompanies 60–70% of patients with polyneuropathy; it is mostly postural, ET-L type with mild severity, and unrelated to other typical clinical and electrophysiological findings of neuropathy.

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Keywords

neuropathy, polyneuropathy, tremor, essential tremor

About this article
Title

Tremor in neuropathies of different origin

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 47, No 6 (2013)

Pages

525-533

DOI

10.5114/ninp.2013.34695

Bibliographic record

Neurol Neurochir Pol 2013;47(6):525-533.

Keywords

neuropathy
polyneuropathy
tremor
essential tremor

Authors

Anna Wasielewska
Monika Rudzińska
Tomasz Tomaszewski
Krzysztof Banaszkiewicz
Magdalena Wójcik-Pędziwiatr
Małgorzata Dec-Cwiek
Anna Zajączkowska
Andrzej Izworski
Andrzej Szczudlik

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