On the relation of dystonic movements to serum thyroxine levels

Remillard, G.M.; Colle, E.; Andermann, F.

Canadian Medical Association Journal 110(1): 59-61

1974


ISSN/ISBN: 0008-4409
PMID: 4809448
Document Number: 76626
A patient with psychomotor retardation secondary to delayed treatment of cretinism developed abnormal dystonic movements in the absence of other signs of toxicity during levothyroxine replacement therapy at a serum thyroxine level of 16 mug./100 ml. The dystonic movements disappeared when the serum thyroxine level fell. The abnormal movements were considered to be related to high thyroxine levels in this patient with pre-existing central nervous system dysfunction.

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