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Essential (hereditary or senile) tremor.

J M Sutherland, V E Edwards, M J Eadie

The Medical Journal of Australia

|July 12, 1975

Summary

Essential tremor, a hereditary or senile condition, often affects upper limbs and worsens with emotion. Propranolol may help reduce tremor severity in some patients requiring treatment.

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Area of Science:

Neurology
Movement Disorders

Background:

Essential tremor is a common neurological disorder.
It is characterized by involuntary rhythmic shaking, often in the hands.
The condition can be hereditary or develop later in life (senile tremor).

Purpose of the Study:

To describe the clinical characteristics of essential tremor.
To investigate the familial occurrence and presentation of essential tremor.
To explore potential therapeutic options for essential tremor.

Main Methods:

A series of sixteen cases of essential tremor were collected over two years.
Patient history, tremor characteristics, and familial links were documented.
Clinical observations included tremor presentation, affected body parts, and response to stimuli.

Main Results:

Ten out of sixteen patients had a family history of essential tremor.
The tremor primarily affected the upper limbs, appearing during movement and exacerbated by emotion.
Head, neck, and leg tremors were observed in a subset of patients.
Alcohol temporarily reduced tremor severity in some individuals.
One patient exhibited neurological abnormalities possibly linked to cerebral arteriosclerosis.

Conclusions:

Essential tremor frequently has a hereditary component.
The tremor's kinetic nature and emotional exacerbation are key features.
While many cases do not require treatment, propranolol shows potential therapeutic benefit for some patients.

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