Resting Tremor
April 18th, 2019
Overview
Look For
- Tremor while at rest, that decreases with target-directed movement.
The tremor of Parkinsonism is classically pill-rolling, meaning that the thumb and forefinger and rubbed together, at a rate of 3-6hz.
Significance
- Resting tremor is associated with Parkinsonism, either in the setting of Parkinson's disease or secondary causes.
Causes of Parkinsonism
- Parkinson's disease - Parkinsonism, anosmia, REM sleep behavioural disturbance, frontal executive dysfunction, depression
- Parkinson's plus syndromes - progressive supranuclear palsy (PSP), multiple systems atrophy (MSA), dementia with Lewy bodies (DLB), corticobasal degeneration (CBD)
- Drugs - antipsychotics, metoclopramide, lithium
- Normal pressure hydrocephalus
- Hypoxic brain injury
- Wilson's disease
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