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The Shy Drager syndrome(multiple system atrophy with autonomic failure)is now recognised as a rare cause of respiratory stridor due to paralysis of the abductors of the vocal cords.Characteristically,this occurs late in the disease,after patients have developed features of autonomic failure, parkinsonism,and cerebellar ataxia.We report a case of Shy-Drager syndrome in which paralysis of the abductors of the vocal cords preceded the development of other features of the disease by 20 months. |
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