ataxia
Pronunciation: ah-TAK-see-ah
Loss of coordination and balance due to dysfunction of the cerebellum or its connections.
Full Definition
Ataxia encompasses a group of movement disorders characterized by incoordination, unsteadiness, and loss of balance. The condition can affect gait, limb movements, speech, and eye movements. Cerebellar ataxia results from damage to the cerebellum itself, while sensory ataxia stems from loss of proprioceptive input. In clinical practice, the term is often modified by anatomical location (truncal ataxia, limb ataxia) or underlying cause (spinocerebellar ataxia, toxic ataxia). Proper documentation should specify the type and distribution of ataxic symptoms observed.
Usage
Usage note: Specify type (cerebellar vs. sensory) and distribution (truncal, limb, gait) in clinical documentation.
In Context
- "Cerebellar ataxia was evident on finger-to-nose testing bilaterally." — Neurological examination note
- "Gait ataxia improved following alcohol cessation and thiamine supplementation." — Follow-up neurology visit