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, 5 (1), 61-9

Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay

  • PMID: 647499

Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay

J P Bouchard et al. Can J Neurol Sci.


A new syndrome of autosomal recessive spastic ataxia has been isolated in the Charlevoix-Saguenay region of Quebec. This syndrome is remarkably homogeneous and includes: spasticity, dysarthria, distal muscle wasting, foot deformities, truncal ataxia, absence of sensory evoked potentials in the lower limbs, retinal striation reminiscent of early Leber's atrophy and the frequent presence (57%) of a prolapse of the mitral valve. Biochemically, many cases show impaired pyruvate oxidation, others have hyperbilirubinaemia and some have low serum beta-lipoproteins and HDL apoproteins. These features are similar to those found in typical Friedreich's ataxia.

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