cerebellar tremor
An action tremor that occurs during voluntary movement and is associated with cerebellar dysfunction.
Full Definition
Cerebellar tremor is a type of kinetic tremor that occurs during voluntary movements and is caused by lesions in the cerebellum or its connections. It is characterized by oscillatory movements that typically worsen as the limb approaches the target, known as terminal tremor. Unlike parkinsonian tremor which occurs at rest, cerebellar tremor is most prominent during purposeful movement and can significantly impact functional activities. The tremor may affect the limbs, trunk, head, or voice, and is often accompanied by other cerebellar signs such as dysmetria and dysdiadochokinesia. Treatment focuses on addressing the underlying cause and may include medications, adaptive equipment, or surgical interventions in severe cases.
Usage
Usage note: Distinguish from essential tremor and parkinsonian tremor; specify as 'cerebellar' rather than generic 'tremor' in clinical documentation.
In Context
- "The patient's cerebellar tremor became more pronounced when reaching for objects, requiring adaptive utensils for feeding." — Treatment planning note