Effects of statins on preeclampsia: A systematic review.

Background: Preeclampsia is a serious complication of pregnancy which increases the morbidity and mortality of both the fetus and pregnant woman. It is characterized by imbalances in angiogenesis, inflammation and endothelial dysfunction which cause the development of hypertension and proteinuria, sometimes progressing into a multisystem disorder. The aim of this systematic review was to analyze all the available data on statins and preeclampsia.
Method: MEDLINE/PubMed, OVID, EMBASE, Web of Sciences, and SCOPUS were searched from inception to May 5, 2020. Any study evaluating the effects of statins on women with preeclampsia or HELLP syndrome or who were at risk for it has been included as well as the studies on the placenta of preeclamptic women.
Results: 12 articles which included 136 pregnant women and 35 placental samples from hypertensive and normotensive women were analyzed. They showed contradictory effects of statins on blood pressure in preeclampsia, on soluble FMS-like tyrosine kinase-1 (sFlt-1) as well as soluble endoglin (sEng). However, statins caused a significant dose-dependent reduction of sFlt-1 secretion from isolated cytotrophoblasts and an increased secretion of sEng (at least in some studies) in primary HUVECs and placental explants obtained from patients with preeclampsia. Statins also increased eNOS in preeclamptic placentas. Statins were beneficial for patients with antiphospholipid syndrome (APS) preventing preeclampsia and it seems that they might prevent complications of HELLP.
Conclusion: It seems that statins might be beneficial for preventing or treating preeclampsia. Nevertheless, further studies are needed to provide definitive conclusions regarding these effects of statins.
(Copyright © 2020 International Society for the Study of Hypertension in Pregnancy. Published by Elsevier B.V. All rights reserved.)