View clinical trials related to Pre-eclampsia.
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Pregnancy is considered a cardiovascular (CV) stress test, and complicated pregnancies are associated with an increased risk for cardiovascular disease (CVD) later in life. Moreover, it is known that often the pregnancy induced CV adaptation does not resolve completely after a short postpartum (PP) period and it is not clear whether these induced changes will resolve over a longer period of time (i.e. in the upcoming months/years after delivery). Understanding the cardiac adaptation during pregnancy and the reversal process in the postpartum period, as well as the factors that influence this these processes, may provide us not only insight in this mechanism, but may help us in identifying factors that may be target points for modification.
Pre-eclampsia (PE) complicates 2-8 % of pregnancies and is associated with high maternal and fetal morbidity and mortality. The early clinical manifestations are the occurrence of a maternal blood pressure and proteinuria. Placental dysfunction impairs the nutrient supply to the fetus, and may be the cause of an intrauterine growth retardation (IUGR). This is a disease that causes prematurity and currently the only known cure is delivery of the placenta. Nitrogen monoxide (NO) regulates the placental blood flow. However, pre-eclampsia is directly related to a failure of placental NO production. In this context, several clinical trials have tested the effect of NO donors such as L- arginine. However, supplementation with L -Arginine in a randomized trial in Nantes, has proved to be ineffective in severe vascular IUGR. Citrulline is a natural aminoacid precursor to arginine and in contrast to L-arginine escapes uptake in the liver and appears directly in the peripheral blood converted by the kidney in arginine, released into the systemic circulation, Citrulline may therefore be more effective in the treatment of pre-eclampsia. This prospective, randomized, comparative and double-blinded study aims to prolong pregnancy for patients with pre-eclampsia before 36 weeks.
Preeclampsia is one of the three leading causes of maternal morbidity and mortality all over the world. The use of low dose aspirin has been mentioned in several studies with promising results. The investigators decided to evaluate the use of low dose aspirin in Chinese pregnant women, starting between 12+ and 20 weeks of pregnancy, based on clinical characteristics aiming to reduce the incidence of preeclampsia.
The purpose of the study is to develop advanced ultrasound (U/S) and Magnetic Resonance Imaging, known as MRI to study uteroplacental health. The goal of this study is to evaluate the blood and oxygen flow to the placenta using advanced U/S and MRI testing.
Randomized controlled trial to assess efficacy of Sildenafil in addition to expectant management for the treatment of preterm preeclampsia
Preeclampsia (Pre-E) is a hypertensive disease of pregnancy with multi-system involvement that usually occurs in the second half of pregnancy. Pre-E occurs in 5% to 7% of U.S. pregnancies, and is the third-leading cause of U.S. maternal death. Improvements to the current diagnostic paradigm have been evaluated. However, no stand-alone diagnostic method has emerged that more accurately identifies women at risk for preeclampsia, warranting improvements in diagnosing Pre-E. This sample collection study will obtain serum and urine samples from pregnant women who present with clinical signs, symptoms, or conditions contributing to the suspicion of Pre-E. Samples will be used to evaluate and validate the performance of an assay intended to aid in assessing the risk of Pre-E.
Preeclampsia is a life-threatening condition unique to pregnancy which occurs in 5-8% of all pregnancies. It contributes to a large proportion of maternal mortality worldwide and these deaths largely result from delayed diagnosis. A number of studies have shown that patient knowledge about preeclampsia is poor and that patient education can improve patient awareness. The investigators would like to find out what type of patient education is most effective. The investigators propose a three arm randomized controlled trial (RCT) where the first arm will receive a graphic card depicting signs and symptoms of preeclampsia, the second arm will watch an educational video on preeclampsia, and the third arm will have no visual form of patient education; they will be exposed only to the counseling they receive with their routine prenatal care. The card and video were both developed by the Preeclampsia Foundation and in a prior RCT the card was shown to be a useful educational intervention. This study would expand on this previous data by comparing the graphic card to an informational video available on the Preeclampsia Foundation's website (http://www.preeclampsia.org/component/allvideoshare/video/featured/7-symptoms-every-pregnant -woman-should-know?Itemid=479). The effectiveness of this video has not yet been tested as an educational tool. Patients in the arm receiving the graphic card for educational intervention will be allowed to keep this card. Primiparous patients seen in the ambulatory prenatal clinic and Maternal Fetal Medicine (MFM) clinic will be enrolled at 18w0d-24w6d gestation. At the time of enrollment baseline preeclampsia knowledge, demographics, and patient anxiety before and after initial exposure to the educational interventions will be assessed. A follow up assessment of knowledge of preeclampsia will be obtained at 32-36 weeks gestation to measure retention of knowledge. Patient medical records will be reviewed for delivery outcomes which will be recorded and compared.
Evaluation of practicability in survey and test procedures and of successful implementation of complex interventions - feasibility analysis based on a pilot study: Influence of conditional workout postpartum on arterial stiffness among women with status after preeclampsia, superimposed preeclampsia or HELLP-syndrome
The Biobank includes data and biological specimens of women from three original studies: 1) First-trimester Prediction of Preeclampsia (PREDICTION Study, NCT02189148), 2) Pre-Eclampsia And growth Retardation, an evaluative Longitudinal study (PEARL Study, NCT02379832), 3) Effect of Low Dose Aspirin on Birthweight in Twins: The GAP Trial (NCT02280031) and 4)PREDICTION2: Prediction of Preeclampsia and other Pregnancy Complications Following Combined Iterative Screening.