Active clinical trials for "Pre-Eclampsia"

To determine the role of the prorenin-renin-angiotensin-aldosterone system (RAAS) in normal and hypertensive pregnancy.

This study aims to evaluate the feasibility of implementing a clinical model for precision screening of early pre-eclampsia into the current prenatal screening service at Sunnybrook Health Sciences Center (SHSC).

Preeclampsia is a multifocal syndrome reported in 2-8 % of pregnancies. It is diagnosed in the second half of pregnancy by two separate measurements of systolic blood pressure ≥140 mmHg and/or a diastolic blood pressure ≥ 90 mmHg in the same arm and proteinuria >300 mg in 24 h urine collection. The risk for serious complications such as pulmonary edema, cerebrovascular accidents, coagulopathy, and hemorrhage is 10 to 30 fold higher among parturients with severe preeclampsia. Severe preeclampsia is defined by one or more of the following clinical features: severe hypertension (systolic arterial pressure 160 mmHg and/or diastolic arterial pressure 110 mmHg on more than one occasion at least 4 h apart while the patient is on bed rest, renal dysfunction (serum creatinine >1.1mg/dl or doubling of serum creatinine in the absence of another renal disease, platelet count less than <100,000 mm3, acute pulmonary edema, epigastric pain not responding to medical treatment, new-onset cerebral and visual manifestation, hemolysis, elevated liver enzymes and low platelet count syndrome (HELLP syndrome)

To identify fetuses small for their gestational-age who have reached their appropriate growth potential from growth-restricted fetuses due to placental insufficiency is uneasy. Intra Uterine Growth Restriction (IUGR) increases the risk for indicated preterm delivery, neonatal mortality and morbidity. Therefore, improving the knowledge of the placental perfusion is essential to better identify and manage fetal chronic oxygen deprivation associated with placental insufficiency. Thus, the investigators propose to study placental microcirculation with a more efficient Doppler than conventional Doppler use in clinical practice. The Ultrafast Doppler is being able to map placental blood flow and could have potential impact in placental insufficiency diagnosis and prevention. Moreover, this Doppler could discriminate maternal and fetal vascularization. The hypothesis is that Ultrafast Doppler could help clinician to diagnose and manage preeclampsia and IUGR during pregnancy.

the study aims to assess the reliability of ultrasound findings measured by hand held ultrasound probes used by operators with variable experience in a low resource hospital.

The main goal is to determine which risk factors develop preeclampsia in this specific group of oocyte recipients.

BACKGROUND: A cornerstone of treatment in preeclampsia is to correct the potential hypovolemia with intravascular optimisation, which is usually performed as a fluid challenge. The prediction of fluid responsiveness in these patients, secondary to anatomical and physiological changes associated with pregnancy has not been established. This study aims to evaluate if Passive Leg Raising (PLR) protocol can predict fluid responsiveness in pregnant patients with severe preeclampsia. MATERIALS AND METHODS: in 35 pregnant women diagnosed with preeclampsia with a clinical indication to optimise intravascular volume, . A PLR manoeuvre and a fluid challenge will be performed, and hemodynamic parameters were recorded using Bioreactance technology. Descriptive statistical analyses, Pearson chi-square test, and mean standard deviation (SD) will be calculated. Analysis of proportion was used to calculate probabilistic intersections of the interventions. The area under curve, sensitivity, specificity, positive predictive value and negative predictive value were calculated for a delta of 12. Objective: to evaluate the if passive leg rising protocol identifies fluid responsivness in pregnant patients with preeclampsia

Evaluation of neutrophil/lymphocyte ratio, Platelet /lymphocyte ratio and CRP as markers of severity of Pre-eclampsia

The purpose of this study is to compare the feasibility and accuracy of two methods of non-invasive hemodynamic assessments - bioreactance as assessed by non-invasive cardiac output monitoring (NICOM; Cheetah Medical) and pulse wave analysis as assessed by finger cuff arterial pressure (ClearSite, Edwards Life Sciences) - compared to hemodynamic assessments by intermittent echocardiography in early onset 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.