CEREBELLAR DISORDERSDr Bhupendra ShahAssistant ProfessorB.P.koirala institute of health sciences

Why you need it?

Medical emergency

Frequent drug toxicity

Distressing to your patient

Objectives

Cerebellar anatomy

Cerebellar funtions

Cerebellar disorder

Clinical features

summary

Cerebellar anatomy

Cerebellar vascular supply

Cerebellar homuncolus

Similarity ???and difference???

Archicerebellum(floculonodular lobe-balance)

Paleocerebellum(anterior lobe-tone,posture )

Neocerebellum(posterior lobe-coordination)

Cerebellar homunculus

Etiology of cerebellar disorders

Symmetrical Asymmetrical Acute-alcohol,lithium, phenytoin, viral encephalitis

Subacute-mercury poisoining,

-nutritional

Chronic-drugs, -hypothyroidism, - paraneoplastic

Acute-vascular ,abscess

Subacute:neoplasm, demylinating

disease

Chonic:congenital :vascular -

gliosis

Clinical features

Imbalance

Fall

Abnormal ocular movement

Slurred speech

tremor

Cerrebellar signs

Dyssynergia Dysmetria-over or undershooting Dysdiadochokinesia Rebound phenomenon Hypotonia Ataxic gait Scanning speech Nystagmus Pendular knee jerk Intention tremor titubation