Ataxia: symptoms and causes

2021-01-26 12:00 AM

The cerebellum central structures (eg, the pupa and the villi) coordinate movement with the muscle through longitudinal motor pathways. Damage to these structures leads to ataxia and lurching.

Description

Ataxia refers to an imbalance of posture when the patient is standing upright, moving head and body (eg, staggering posture). The patient may ask for help to maintain an upright position.

Causes

Often met

Cerebellar infarction.

Cerebral haemorrhage.

Alcohol.

Medicines (eg: benzodiazepine, lithium, phenytoin).

Less common

Scattered stiff fibres.

Mass lesions (eg, tumour, abscess, AVM).

Arnold – Chiari malformation.

Near-tumor cerebellar degeneration

Cerebellar function anatomy

Figure. Cerebellar function anatomy

Mechanism

The cerebellum central structures (eg, the pupa and the villi) coordinate movement with the muscle through longitudinal motor pathways. Damage to these structures leads to ataxia and lurching.

Meaning

Ataxia is a sign of the cerebellar centre.

Board. Cerebellar function anatomy and related motor pathways

Cerebellar surgery

Function

Road-related movement

The pupa and the villi.

Coordination between the root chi and the body.

Vestibular - eye reflex.

Anterior medullary strip.

Strip grid marrow

Vestibular band.

The medullary roof strips.

Intermediate hemisphere.

Coordination in the limbs.

Lateral medullary strip.

The red band of marrow.

Hemisphere side.

Command apparatus, tops chi.

Lateral medullary strip.

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