Pregnancy with known syndrome of inappropriate antidiuretic hormone

Abstract

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.

Keywords::

• Hyponatraemia in pregnancy
• pre-eclampsia
• SIADH
• SIADH in pregnancy

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.