View clinical trials related to Pre-eclampsia.
Filter by:Preeclampsia is a common disease state occurring in the third trimester of pregnancy, with an incidence of approximately 5-10% in the US. Hypertension (high blood pressure), a primary symptom of pre-eclampsia, may be present in women who were hypertensive prior to becoming pregnant.B-type (also known as brain) natriuretic peptide (BNP) is known to be made and released from the heart ventricles when the heart is strained. There is also evidence that BNP is secreted in the placenta, and may increase in preeclampsia and chronic hypertension in pregnancy.The purpose of the study is to determine if a maternal blood sample analyzed for the quantity of BNP is helpful in differentiating between pre-eclampsia and chronic high blood pressure.
This is a prospective multicentric study including four clinical units of Gynecology and Obstetrics (3 public health hospitals and one private team), one research team in Hematology and one Center of Clinical investigation (CIC). The objective is to identify, beside the pregnancy, in a population of patients with a preeclampsia (PE), with fetus presenting with growth restriction (IUGR) and a fetal demise (FD) a modification of circulating endothelial biomarkers compared with normal pregnancy. We want to understand better the physiopathology of preeclampsia and propose to patients with an endothelial dysfunction a early prevention of preeclampsia. Patients will be tested 3 times : At the pregnancy events; then 8 weeks and 12 months after the birth. Four groups will be constituted among patients: PE, IUGR, FD and normal pregnancy. Normal pregnancy will be tested as controls. The next pregnancy presenting in the unit to medical pregnancy follow up will be invited to participate. The main judgment criteria will be the levels of endothelial microparticles 8 weeks after the event. The study will last 3 years. The number of patient to include is 280.
This study is intended to assess the efficacy of L-arginine supplementation with antioxidant vitamins delivered in a medical food in reducing the incidence of preeclampsia in a high-risk population.
An epidemiologic study of pregnant women in western Washington to measure the relationships between exposure to air pollutants and risks of preeclampsia and preterm delivery.
To assess the role of uterine artery and maternal serum leptin and lipids and their combination in screening for pre-eclampsia and small-for-gestational-age (SGA) fetuses at 20-24 weeks of gestation
Severe preeclampsia often presents with uncontrolled hypertension and therefore requires close monitoring of blood pressure and cardiac performance. The purpose of the study is to compare two methods of measuring the performance of the heart in pregnant women: one by ultrasound of the heart, the other by assessing the pulse generated in the blood vessel of the wrist. We hope that the method using pulse analysis will be as effective as ultrasound, which is labour intensive and operator dependant.
Hypotension remains a common clinical problem after induction of spinal anesthesia for cesarean delivery. Maternal hypotension has been associated with considerable morbidity (maternal nausea and vomiting and fetal/neonatal acidemia). Traditionally, ephedrine has been the vasopressor of choice because of concerns about phenylephrine's potential adverse effect on uterine blood flow. This practice was based on animal studies which showed that ephedrine maintained cardiac output and uterine blood flow, while direct acting vasoconstrictors, e.g., phenylephrine, decreased uteroplacental perfusion. However, several recent studies have demonstrated that phenylephrine has similar efficacy to ephedrine for preventing and treating hypotension and may be associated with a lower incidence of fetal acidosis. All of these studies have been performed in healthy patients undergoing elective cesarean delivery. Preeclampsia complicates 5-6% of all pregnancies and is a significant contributor to maternal and fetal morbidity and mortality. Many preeclamptic patients require cesarean delivery of the infant. These patients often have uteroplacental insufficiency. Given the potential for significant hypotension after spinal anesthesia and its effect on an already compromised fetus, prevention of (relative) hypotension in preeclamptic patients is important. Spinal anesthesia in preeclamptic patients has been shown to have no adverse neonatal outcomes as compared to epidural anesthesia when hypotension is treated adequately. Due to problems related to management of the difficult airway and coagulopathy, both of which are more common in preeclamptic women, spinal anesthesia may be the preferred regional anesthesia technique. Recent studies have demonstrated that preeclamptic patients may experience less hypotension after spinal anesthesia than their healthy counterparts. To our knowledge, phenylephrine for the treatment of spinal anesthesia-induced hypotension has not been studied in women with preeclampsia. The aim of our study is to compare intravenous infusion regimens of phenylephrine versus ephedrine for the treatment of spinal anesthesia induced hypotension in preeclamptic patients undergoing cesarean delivery. The primary outcome variable is umbilical artery pH.
Justification: We have recently demonstrated that maternofetal alloimmunization was not limited to blood cells: maternal alloimmunization against a glomerular podocyte antigen expressed by the placenta can induce neonatal membranous glomerulonephritis. Early recurrent pregnancy losses, preeclampsia and intervillositis are obstetrical pathologies which share an anomaly of placentation. Pathophysiology of these diseases is not yet fully understood; nevertheless the hypothesis of an incompatibility between mother and child is often mentioned. The aim of this project is to detect and study the cases of recurrent pregnancy losses, preeclamspia and intervillositis which could be induced by tissular maternofetal alloimmunization. Materials and methods: Patients suffering from recurrent pregnancy losses of unknown origin, preeclamspia or intervillositis will be included in this project. Mothers' sera will be studied by indirect immunofluorescence and Western Blot on placental biopsies from different origins and gestational ages. This stage will enable us to detect possible maternal allo-antibodies. After detecting and revealing antibodies, nature of the target antigen will be identified by immunoprecipitation of placental extracts, using the positive sera. Immunoprecipitation will be followed by a mass spectrometry analysis of detected proteins. Expected results: This study will enable us: - to detect new cases of tissular maternofetal alloimmunization - to improve our knowledge of mechanisms leading to anomalies of placentation - to carry out a specific, preventive therapeutic approach for cases induced by tissular alloimmunization. Key words: Recurrent pregnancy losses, Preeclampsia, Intervillositis, maternofetal alloimmunization.
Preeclampsia is a hypertensive disorder of pregnancy and a leading cause of fetal and maternal morbidity and mortality. Recent findings indicate preeclampsia is an inflammatory disorder associated with increased expression of COX-2. This study will test the hypothesis that treatment of women with a COX-2 inhibitor, celecoxib, will stop the inflammatory process and reverse symptoms of preeclampsia.
Cross sectional, hospital-based study dealing with adiponectin levels in newborns to mothers with pre-eclampsia. Venus cord blood samples were collected immediately after birth; 30 cases and 62 controls were enrolled into the study. The study was approved by the local ethics committee and all participants gave written consent.