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Title

Brief overview of maternal triglycerides as a risk factor for pre-eclampsia.

Authors

Ray, J. G.; Diamond, P.; Singh, G.; Bell, C. M.

Abstract

Background Features of the metabolic syndrome--maternal obesity, diabetes mellitus and chronic hypertension--are risk factors for pre-eclampsia. Objectives To determine the risk of pre-eclampsia in the presence of maternal hypertriglyceridemia, another major element of the metabolic syndrome. Search strategy Two investigators independently searched PubMed and Embase databases from 1980 to December 2004 for relevant studies. The terms preeclampsia, eclampsia, pregnancy-induced hypertension or toxemia were combined with dyslipidemia, hyperlipidemia, hypertriglyceridemia, lipids, cholesterol, triglycerides (TG) or lipoprotein. Selection criteria We included case-control and cohort studies published in English that included at least 20 women with preeclampsia and that sampled serum or plasma TG at any time before, during or after pregnancy. Data collection and analysis Mean maternal TG concentrations were compared between cases and controls within each study. The odds ratio of pre-eclampsia was calculated by comparing the risk of pre-eclampsia among women in each higher TG concentration category with that in the lowest reference category. Main results A total of 19 case-control and 3 prospective cohort studies were included. In 14 studies, the mean TG concentration was significantly higher among pre-eclamptic cases than among unaffected controls; in seven other studies, there was a nonsignificant trend in the same direction. The risk of preeclampsia typically doubled with each increasing TG category. In the four studies that adjusted for potential confounders, such as maternal age, parity and body mass index, there was about a fourfold higher risk of pre-eclampsia in the highest relative to the lowest TG category. Author's conclusions There exists a consistent positive association between elevated maternal TG and the risk of pre-eclampsia. Given that maternal hypertriglyceridemia is a common feature of the metabolic syndrome, interventional studies are needed to determine whether pre-pregnancy weight reduction and dietary modification can lower the risk of pre-eclampsia.

Subjects

PREECLAMPSIA; HYPERTRIGLYCERIDEMIA; HYPERLIPIDEMIA; METABOLIC syndrome

Publication

BJOG: An International Journal of Obstetrics & Gynaecology, 2006, Vol 113, Issue 4, p379

ISSN

1470-0328

Publication type

Academic Journal

DOI

10.1111/j.1471-0528.2006.00889.x

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