2. synopsis
Important concepts in Ataxia
ATAXIA MIMICKERS
Tests of Cerebellar dysfunction
Step-wise approach to Cerebellar Ataxias
Summary
ALGORITHM for cerebellar ataxias
3. Ataxia
• Ataxia = from Greek- a- [lack of]+ taxia [order]
• lack of order
• Of rate, rhythm and force of contraction of voluntary movements
• Disorganized, poorly coordinated, or clumsy movements
• Traditionally used specifically for lesions involving – Cerebellum or it’s
pathways – Proprioceptive sensory pathways
4. • Ataxia is the inability to make smooth, accurate and coordinated
movements
• Arises from disorders of:
––Cerebellum
––Sensory pathways (Sensory Ataxia)
––Posterior columns, dorsal root ganglia,
And peripheral nerves
––Frontal lobe lesions
––Extra pyramidal system
––Vestibular system
