Essential tremor (ET): clinical features
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Essential tremor (ET): clinical features. The median onset age is 15 years, It has an equal sex distribution. Fully referenced neurology checklist.
Epidemiological features
- The median onset age is 15 years
- It has an equal sex distribution
- A family history is absent in >50% of cases
- Family history is less likely in childhood and late-onset ET
Postural limb tremor features
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Head tremor features
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Other tremor features
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Alcohol sensitivity
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Parkinsonian features
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Cognitive impairment
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Psychiatric features
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Other non-tremor features
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Predictors of fast progression
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References
- Bain P, Brin M, Deuschl G, et al. Criteria for the diagnosis of essential tremor. Neurology 2000; 54(Suppl 4):S7.
- Bain PG, Findley LJ, Thompson PD, et al. A study of hereditary essential tremor. Brain 1994; 117:805-824.
- Louis ED, Ford B, Barnes LF. Clinical subtypes of essential tremor. Arch Neurol 2000; 57:1194-1198.
- Nahab FB, Peckham E, Hallett M. Essential tremor, deceptively simple...Pract Neurol 2007; 7:222-233.
- Hopfner F, Ahlf A, Lorenz D, et al. Early- and late-onset essential tremor patients represent clinically distinct subgroups. Mov Disord 2016; 31:1560-1566.
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