Pregnancy with known syndrome of inappropriate antidiuretic hormone

A Nawathe1, A Govind

  • 1Department of Obstetrics and Gynaecology, North Middlesex University Hospital NHS Trust, UK. draamod@gmail.com

Syndrome of inappropriate antidiuretic hormone (SIADH) is rarely encountered in pregnancy. We report a case of severe hyponatraemia with idiopathic SIADH. A total of 18 cases of hyponatraemia in pregnancy have been reported; seven fit the criteria of SIADH. Unlike our case, none were diagnosed before pregnancy. Of the cases, 13 were associated with pre-eclampsia. Our patient developed intrauterine growth restriction (IUGR) but did not develop pre-eclampsia.

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