title: Thyrotoxicosis and paraparesis in a young woman: case report and review of the literature.
abstract: We describe a 23-year-old woman with a 3-week history of episodic leg weakness. The onset of weakness always occurred in the evening after dinner and the attacks resolved spontaneously by morning. Physical examination revealed a resting tachycardia and symmetrical, proximal weakness involving both arms and legs. Electrocardiogram (ECG) and electrolyte analysis showed a severe hypokalemia and thyroid function tests showed hyperthyroidism. The patient was diagnosed as having Graves' thyrotoxicosis and thyrotoxic periodic paralysis (TPP) and was initially treated with propranolol and subsequently carbimazole. No recurrence of the paralysis has been noted. TPP is most common in males of Asian extraction and is rare in women even in the Asian population. With increasing immigration, TPP is likely to occur more frequently in both Europe and North America and awareness of the condition is vital. Treatment of the underlying thyroid dysfunction cures the muscle symptoms.
authors.affiliation: Department of Internal Medicine, University of Bergen, Haukeland Hospital, Norway. gunnar.mellgren@med.uib.no
authors.forename: Gunnar
authors.initials: G
authors.lastname: Mellgren
authors.forename: Inger Hjørdis
authors.initials: IH
authors.lastname: Bleskestad
authors.forename: Sylvi
authors.initials: S
authors.lastname: Aanderud
authors.forename: Laurence
authors.initials: L
authors.lastname: Bindoff
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000328:Adult; D013956:Antithyroid Agents / Q000627:therapeutic use; D002231:Carbimazole / Q000627:therapeutic use; D005260:Female; D006111:Graves Disease / Q000150:complications / Q000188:drug therapy; D006801:Humans; D020335:Paraparesis / Q000209:etiology*; D011433:Propranolol / Q000627:therapeutic use; D013971:Thyrotoxicosis / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy
chemical_list: D000319:Adrenergic beta-Antagonists; D013956:Antithyroid Agents; D002231:Carbimazole; D011433:Propranolol