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Summary of spinal muscular atrophy

Spinal muscular atrophy may be summarised as it is a disease of anterior horn cells it is progressive in nature and is inherited as autosomal recessive trait

There is generalized weakness of skeletal muscle which may or may not involve respiratory muscles the baby is flaccid and at some stage of the disease there is involvement of respiratory muscles and or diaphragm

There are three types of spinal muscular atrophy

Type 1 is early infantile form which presents before 6 months of age it is a very severe form search dead survival beyond 3 years is uncommon

Type 2 of spinal muscular atrophy is a late infantile form

Type 3 spinal muscular atrophy is juvenile onset form

Type 1 Is also called werdnig Hoffman disease

Type 3 is also called kugelberg velander disease

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