title: Thyrotoxic hyperemesis: a case report.
abstract: A male patient with hyperemesis as a result of hyperthyroidism was presented. Investigations for causes were negative except for hyperthyroxinaemia. Treatment with antithyroid drug relieved the symptom. Hyperemesis associated with hyperthyroidism occurs predominantly in females. A likely emetic factor oestrogen. Hyperthyroidism could have potentiated this effect. Levels of oestrogens are raised in thyrotoxicosis. The hyperthyroidism, the raised oestrogens and a low emetic threshold conspired to hyperemesis in this patient, a situation not unlike hyperemesis gravidarum. Thyrotoxic vomiting once recognised is readily by antithyroid treatment.
authors.forename: K W
authors.initials: KW
authors.lastname: Wang
authors.forename: K S
authors.initials: KS
authors.lastname: Mui
mesh_terms: D000328:Adult; D006111:Graves Disease / Q000150:complications*; D006801:Humans; D008297:Male; D014839:Vomiting / Q000209:etiology*