Chapter: Medicine and surgery: Nervous system

Benign essential tremor

An action tremor without features of parkinsonism. - Definition, Incidence, Aetiology, Pathophysiology, Clinical features, Complications, Investigations, Management, Prognosis.

Benign essential tremor

 

Definition

 

An action tremor without features of parkinsonism.

 

Aetiology/pathophysiology

 

Often inherited as an autosomal dominant trait. It tends to present in the teens or in the elderly and affects males and females equally.

 

Clinical features

 

A symmetrical, flexion-extension tremor, affecting the hands and head in particular, and sometimes the voice. Oscillations are not usually present at rest, but occur posturally, e.g. holding a newspaper, and are increased by anxiety and movement.

 

Management

 

Treatment is often unnecessary, small doses of a β adrenergic blocker such as propranolol or primidone often reduce the tremor. The condition is slowly progressive and may cause some disability.

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Medicine and surgery: Nervous system : Benign essential tremor |

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Medicine and surgery: Nervous system


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