The objective of our study was to evaluate the prevalence and clinical factors associated with hyponatremia in patients with preeclampsia.This is a descriptive study of all patients who delivered at our institution from 2013 to 2014. Patients with preeclampsia were identified from electronic medical records. Preeclampsia with and without severe features was defined using the criteria outlined in the American Congress of Obstetricians and Gynecologists Hypertension in Pregnancy guidelines. As sodium levels have been shown to be approximately 5 mEq/L lower in pregnancy, hyponatremia was defined as a sodium level <130 mEq/L.We identified 332 pregnancies complicated by preeclampsia, including 277 singletons and 55 twins. Hyponatremia was noted in 32 (9.7

作者：Armin S, Razavi；Stephen T, Chasen；Ritu, Gyawali；Robin B, Kalish

来源：Journal of perinatal medicine 2016 年