View clinical trials related to Pre-eclampsia.
Filter by:This will be a randomized, open-label, controlled trial of patients at high risk of developing preeclampsia examining 81 mg/day vs 162mg/day daily acetylsalicylic acid (ASA) use. Based on screening results, patients will be randomized as outlined below into one of four groups. The proposed study is a pilot to determine if the higher dose of ASA has positive impacts on measures that predict preeclampsia, compared to the lower dose. If positive findings, data from this study could be used to develop a larger trial powered to determine if the higher ASA dose can improve clinical outcomes.
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.
A total of eight quadrants of standard lung US examination was performed to all pregnant women with preeclampsia within the scope of the study by the same anesthesiologist, dividing each hemithorax into four regions through the parasternal, anterior axillary, posterior axillary vertical lines, and the horizontal line assumed to pass under the nipple. The resulting images were stored in digital media. A Lung US examination was performed once for an average of 5-10 minutes. The presence of B lines was investigated in the examination. The case was defined as interstitial edema when the B lines, which are defined as vertical linear hyperechoic reverberation artifacts representing the edematous interlobular septa/alveoli, extend posteriorly from below the pleural line and moving in sync with lung movements, are found in two or more lung areas. B-lines were determined for each case and reported in standard form in terms of number and morphology. The diagnostic accuracy of B lines was determined with the artificial intelligence supported SmartAlpha Rievi 1300 software program. B-lines validated by artificial intelligence assisted algorithm in all stored digital images were reported blindly by another anesthesiologist experienced in lung US. The clinical features, laboratory parameters, and intraoperative hemodynamic data of the cases were recorded to be evaluated in terms of relationship with lung US data. We predict that the application of lung US with artificial intelligence software will provide an opportunity to quickly evaluate the clinic of preeclamptic pregnant women who are frequently operated on in emergency conditions.
Formation of neutrophil extracellular traps (NETs) is a process of activation of neutrophils, which then generate filaments containing DNA, enzymes and extracellular histones. Two mechanisms of formation of NETs are described in the literature: vital mechanism via Toll Like Receptors (TLRs) and suicidal mechanism, dependent on the reactive oxygen species (ROS) pathway. The description of these two mechanisms of formation of NETs is recent and no data exist in the context of pregnancy.
Title: A prospective multicentric interventional randomized controlled trial to assess the effect of low dose acetylsalicylic acid as a preventive treatment of pre-eclampsia in pregnant women who underwent frozen embryo transfer
Cardiovascular disease and hypertensive disorders of pregnancy (HDP) are the leading causes of maternal morbidity and mortality in the United States. Postpartum, in office care has demonstrated to be an insufficient model of hypertensive management postpartum, largely due to barriers that women face in accessing in office care, with stark racial disparities in access. The care of postpartum patients with HDP following delivery is made up of either a single postpartum visit at 6 weeks postpartum or a fragmented and non-standardized series of in-person appointments depending on the patients' medical complications and the clinicians' experience. Further, current society guidelines outline inpatient thresholds for initiation of antihypertensive medication but do not provide recommendations for titration thereafter. The proposed study will investigate the acceptability and effectiveness of an algorithm-based, outpatient treatment model for the management of postpartum hypertension utilizing an asynchronous text-based platform as compared to the standard of care for postpartum women with a diagnosis of Hypertensive disorder of pregnancy at Massachusetts General Hospital.
major objective This multicenter, prospective cohort study aims at evaluating the predictive value of microbiome ,proteomics and serum markers in preeclampsia. secondary objective to evaluate the value of microbiome,proteomics and serum markers in assessing pregnancy outcome (complications during pregnancy and delivery, delivery) and neonatal prognosis.
Preterm birth (PTB) rates in the US are among the highest in wealthy nations across the globe, and they are particularly high in our most socio-economically disadvantaged populations. PTB increases lifelong morbidity and mortality at significant economic cost. In addition to neonates born too early, small for gestational infants predict the greatest risk for chronic disease in the neonate (F1 generation) through adulthood. Single lifestyle, nutrient, or medical interventions intended to reduce PTB have produced mixed results, but combined micronutrient interventions appear more successful. The investigators experienced a reduced preterm birth rate and combined preeclampsia, gestational diabetes and small for gestational age rate in a 50% Medicaid population by providing targeted micro/macronutrient, genomic and lifestyle evaluation with personalized intervention in a trimester-by-trimester group educational setting (1). The model requires validation in more diverse populations. This study will be applied in a 100% Medicaid population with greater ethnic diversity. Participation will be voluntary, offered to all pregnant participants enrolling at 18 weeks gestation or earlier with the comparator group being those participants who decline the intervention. The study population will receive targeted biomarker evaluation including serum 25-OH D, zinc and carnitine levels, dried blood spot omega 3 fatty acids and select gene variant analysis. Virtual group nutrition and lifestyle education visits conducted by the nutritionist cluster participants in the same trimester allowing for personalization of the nutrition and lifestyle plan based on the data collected and adapted to the specific needs of the trimester. Each study participant will receive individualized nutrient supplementation and probiotic supplementation. Anticipated performance improvement endpoints are significant reduction of preterm birth and combined incidence of preeclampsia, gestational diabetes, small for gestational age, neonatal morbidities and related health care expenses. The investigators will explore gene variants' role in directing nutrition, lifestyle and toxic exposure interventions and in predicting adverse maternal and neonatal outcomes.
Study background High blood pressure during pregnancy is a worldwide health problem that can be dangerous to mothers and commonly causes premature birth and small babies. There is also growing evidence that mothers who suffer from high blood pressure in pregnancy, and their babies, have a higher risk of high blood pressure and cardiovascular disease later in life. Previous studies have revealed detrimental changes in the structure and function of the heart and blood vessels of mothers, and their babies, who experience this common complication. These changes may explain their increased risk of later disease. The investigators have also learned through previous studies that tetrahydrobiopterin (BH4), a molecule that has a role in blood vessel health, plays an important role in stabilising blood vessel function. Lower levels of BH4 are evident in both the placenta and the umbilical cord from mothers with high blood pressure. We, therefore, want to investigate how closely BH4 levels are related to clinical features of pre-eclampsia and whether altering levels of BH4, using a nutritional supplement, improves features of the disease such as blood vessel function. To do this, the investigators need to compare the levels of BH4 between mothers with pre-eclampsia, those taking the supplement and those without pre-eclampsia. The investigators also compare how the heart and blood vessels look and function in these groups using ultrasound methods, including echocardiography and fetal sonography. Study objectives CAREFOL-HT will assess how levels of BH4 differ in pregnant women with high blood pressure and if this is reflected in functional changes in the heart and blood vessels of these women. The investigators will also determine whether changing levels of BH4, using a tetrahydrofolate supplement (5-MTHF), changes blood vessel function.
Maternal hypotension after subarachnoid block is a frequent and deleterious complication during lower segment caesarean section (LSCS). Prophylaxis against hypotension using vasopressors had become a standard recommendation. In mothers with preeclampsia, post-spinal hypotension is less frequent compared to healthy mothers; thus, the latest guidelines do not recommend using vasopressors in preeclampsia patients unless there is a hypotensive episode . The incidence of post-spinal hypotension in mother with preeclampsia is nearly 25%. The commonly used vasopressors during CS are ephedrine, phenylephrine, and recently norepinephrine. The use of ephedrine is usually accompanied with maternal tachycardia and foetal acidosis. Phenylephrine (PE) had been the first line for prevention and management of maternal hypotension; however, its use in mothers with preeclampsia had not been adequately investigated. Thus, the best vasopressor for management of hypotension in mothers with preeclampsia is unknown. Norepinephrine (NE) is an alpha adrenergic agonist with weak beta adrenergic agonistic activity; thus, it does not cause significant cardiac depression as phenylephrine does. NE was introduced for use during CS with promising results when used as infusion and as boluses in healthy mothers . The use of NE boluses in management of hypotension in preeclamptic mothers was not adequately investigated. A dose 4 mcg NE was recently evaluated in preeclamptic mothers. In this study, we will compare 3 NE bolus doses (3 mcg, 4 mcg, and 5 mcg) in management of maternal hypotension after spinal block during CS in preeclamptic mothers.