View clinical trials related to Placental Insufficiency.
Filter by: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.
To investigate the effect of umbilical cord milking (UCM) on peripheral hematologic parameters including hematopoietic progenitor cells in premature infants ≤ 34 weeks gestational age with placental insufficiency. We hypothesize that UCM would enhance peripheral CD34 concentration, hemoglobin and reduce prematurity complications like NEC and IVH in preterm infant ≤ 34 week gestational age with placental insufficiency.
To investigate the effect of delayed cord clamping (DCC) on hematopoietic progenitor cells (HPCs), hematological parameters including haemoglobin concentration and hematocrit value in premature infants (34 weeks gestational age or less) with placental insufficiency.We hypothesized that preterm infants with placental insufficiency underwent DDC could have better hematologic parameters and hematopoietic progenitor cells compared to immediate cord clamping.
Assessment of the effectiveness of Enoxaparin, at a preventive dose, combined with Aspirin treatment versus Aspirin only treatment in reducing placental insufficiency in pregnant women.
Antenatal absent or reversed end-diastolic flow (AREDF) velocity through the umbilical arteries places preterm infants at significant risk for developing gastrointestinal complications, such as feeding intolerance, necrotizing enterocolitis or spontaneous intestinal perforation. Due to the fear of the aforementioned conditions, the establishment of adequate enteral feeds is frequently hampered in this population. Previous postnatal Doppler studies have shown that AREDF preterm infants who later developed feeding intolerance have a decreased blood flow velocity in the superior mesenteric artery in response to the first enteral feed; to date, however, it is not known whether this hemodynamic impairment persists over time, or if it is associated with reduced splanchnic oxygenation and perfusion, monitored by Near-infrared spectroscopy (NIRS). This observational prospective study aims: - to assess the patterns of abdominal oxygenation and perfusion in response to enteral feeds in AREDF preterm infants at different phases of enteral feeding establishment; - to evaluate a possible correlation with the development of gastrointestinal complications.
The primary objective of this study is to demonstrate that plasma concentrations of nucleosomes and free DNA differ between three groups: 1. pregnant patients with complications typical of placental insufficiency or venous thrombosis (group P), 2. healthy women (Group T1) and 3. healthy pregnant women (Group T2).
To establish wether a prophylactic intervention from first trimester with low-dose of aspirin improves trophoblastic invasion evaluated at third trimester in women defined as high-risk by abnormal uterine artery Doppler at first trimester
This is a Multicenter, randomized, open‐label, parallel groups study to test the hypothesis that prophylactic low molecular weight heparin (LMWH) (enoxaparin) initiated before 14 weeks of gestation could improve maternal and perinatal outcome in women at high risk for developing placental‐mediated pregnancy complications.
Placental insufficiency is the source of preeclampsia (PE) and intrauterine growth retardation (IUGR). Current data demonstrate a significant beneficial effect of prophylactic use of aspirin on the recurrence of placental insufficiency and its complications, mainly preeclampsia, when started early in pregnancy. However, there is a significant heterogeneity in medical practice in Canada and around the world in terms of the dose of aspirin used. The objectives of this study are: 1) Evaluate whether a dose of 160 mg of aspirin is associated with greater improvement in placental function assessed by biochemistry (sFlt-1 and endoglin) and ultrasound (uterine artery Doppler) than a dose of 80 mg in women with a history of PE, 2) Assess whether the change is dependent on platelet aggregation measured by a test used in several Canadian centers (PFA-100).
To evaluate the feasibility of functional MRI method developed in an animal model and to construct normal reference ranges for in vivo placental perfusion using functional MRI. This will be based on imaging studies in patients undergoing termination of pregnancy (TOP) at 16 to 32 weeks' for fetal reason in a tertiary referral center.