Tremor HY
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Essential tremor presents as a bilateral action tremor of the hands and head that improves with alcohol. Parkinson's disease features a resting tremor of the hands and legs with a "pill-rolling" motion and other parkinsonian signs. Cerebellar tremor presents as an action tremor that increases in amplitude as the hand reaches its target, along with ataxia, dysmetria, or a gait disorder.
Tremor HY
- 1. Tremor Tremor Clinical features Essential • Action tremor • Bilateral hands &/or head • Improves with alcohol Parkinson disease • Resting tremor (decreases with movement) • Hands & legs • "Pill-rolling" • Associated parkinsonian features (eg, rigidity, masked faces, wide-based gait) Cerebellar • Action tremor (increases as hand reaches target) • Associated ataxia, dysmetria, or gait disorder Physiologic • Action & rest tremor • Low amplitude, high frequency (ie, "fine" tremor) • Not visible under normal circumstances • Enhanced with sympathetic activation (eg, anxiety, caffeine, hyperthyroidism)