View clinical trials related to Pregnancy Complications.
Filter by:The present study is based on the hypothesis, that recurrent pregnancy loss (RPL) is associated with abnormal plasma mannose binding lectin (p-MBL) level. Secondarily, p-MBL level may affect the reproductive and the perinatal outcome in the first pregnancy following RPL. Thus, the present study aim to examine whether MBL should be a biomarker for women at risk for RPL and, secondarily, affect the reproductive and perinatal outcome, and thereby help clinicians identify fragile women who need intensified perinatal care.
Complicated pregnancies refer some special complications, including twin to twin transfusion syndrome(TTTS), twin reverse arterial perfusion(TRAP), selective intrauterine fetal growth restriction(sIUGR), twin anemia-polycythemia sequence(TAPS), one fetal death or structural abnormalities, etc. Complicated twins are often associated with high perinatal morbidity and mortality. Severe complicated twins can be treated with fetal-reduction surgery during pregnancy, which can improve the survival rate of retained fetuses and reduce the disability rate. The managements include mechanical umbilical cord ligation or thermal coagulation obliteration, such as bipolar coagulation (BCC), radiofrequency ablation (RFA), and laser coagulation.Nowadays radiofrequency ablation reduction is the most common, which processes a higher survival rate and fewer maternal and fetal complications compared with other ways.Latest experience suggests that microwave ablation(MWA) is also easy to be used and the therapeutic effect is similar with RFA, but there is no convincing evidence. Compared with radiofrequency ablation, MWA has the advantages of simple operation and time, and avoids the problems of tissue carbonization, drying and heat sink effect. For fetation reduction surgery, the main advantage is that the endothermic effect near the blood vessels is smaller, which enables microwave fetation reduction to have a larger ablation range and a higher thermal effect. This study is comparing Microwave Ablation(MWA) and radiofrequency ablation (RFA) methods for selective fetal reduction in the treatment of complicated monochorionic (MC) multifetal gestations. This is a pilot randomised controlled trial(RCT) of 60 patients who undergo selective fetal reduction. The subjects of this study were all pregnant women and their offspring who underwent reduction surgery in the third hospital of Beijing University, and patients are randomly assigned 1:1 to different intervention groups by parallel design. The outcome evaluators were blind. Collecting their surgery, clinical information and maternal and fetal complications at a week and a month after surgery, 42 days and 6 months after delivery, to verify the safety and efficacy of MWA, and find a better treatment plan for complicated monochorionic pregnancies .The primary outcome was neonatal survival rate.
Real-time continuous glucose monitoring (CGM) systems provide users with information about current glucose levels and alert the patient before the upper or lower glucose threshold is reached or when glucose levels change rapidly. Hence, glycaemic excursions can be early identified and accordingly adapted by behavioural change or pharmacologic intervention. Randomized controlled studies adequately powered to evaluate the impact of long-term application of real-time CGM systems on the risk reduction of adverse obstetric outcomes are missing.
As the global availability of vaccines increases, and reaches areas disproportionately affected by arsenic and malnutrition, resolving questions about potential environmental and biologic barriers to maternal immunization has become increasingly urgent. It is not known whether arsenic, a known developmental toxicant, can alter maternal immune responses to vaccination and whether exposure to arsenic during pregnancy can impair the transfer of maternal vaccine-induced antibody to the newborn. Moreover, factors known to affect arsenic metabolism and toxicity outcomes, particularly micronutrients critical in one-carbon metabolism, have not been evaluated in studies of arsenic immunotoxicity and vaccine-induced protection in mothers and their newborns. The objective in this study is to investigate whether maternal arsenic exposure and one-carbon metabolism micronutrient deficiencies alter maternal and newborn measures of vaccine-induced protection, respiratory morbidity, and systemic immune function following influenza vaccination during pregnancy.
The Huizhou mother-infant cohort was set up to investigate the effect of dietary factors and environmental exposures during pregnancy on health consequences of mothers and offsprings in Huizhou, China.
Purpose: The investigators hypothesize that exposure to chronic environmental stress is a risk factor for adverse pregnancy outcomes related to preterm birth and preeclampsia among high-risk pregnant women. Additionally, the investigators hypothesize that women can be screened for high levels of environmental stress through the perceived stress scale, and therapeutic writing can be used as a low-resource intervention to help decrease maternal perceived stress and inflammation - measured through analysis of maternal serum and placental samples. Participants: Pregnant women at high risk for adverse pregnancy outcomes, including pre-eclampsia and preterm birth, enrolled in prenatal care at UNC will be recruited for participation Procedures: Using results from the perceived stress scale, the investigators will identify women who screen positive for high environmental stress. Women meeting inclusion criteria will be contacted for possible participation at regularly scheduled prenatal visits. Women who are enrolled will be randomized to generalized writing prompts, therapeutic writing prompts, or no writing during their pregnancy to be administered at each prenatal visit. Maternal blood sample for biochemical markers of stress and gene expression will be obtained at the initial visit; a followup blood sample will be obtained later in pregnancy, and a small portion of the placenta saved at delivery. Delivery outcomes will be obtained through medical record review.
Carbetocin has been in clinical use in EU for some years and the efficacy is documented in several RCTs. Circulatory adverse events leading to death has been reported after intravenous injection of oxytocin. Some studies indicate that oxytocin may lead to dose dependent ischemic ECG changes, prolongation of QT time and liberation of biomarkers of myocardial cell death. Previously the investigators have demonstrated comparable vasodilatory effects of oxytocin and carbetocin. There is no clinical study comparing the specific myocardial effects of oxytocin with carbetocin. It may have great impact on the choice of standard medication if the cardiotoxicity of carbetocin is lower compared with oxytocin. The study of potential cardiotoxicity has to be performed in healthy women. Knowing that millions of laboring women have had uneventful injections of oxytocin and carbetocin after delivery, there is probably no reason to fear long lasting negative effects of either drug. If there are differences in cardiotoxicity, this new information should be taken into consideration when planning delivery in pregnant women with heart disease.
In twin pregnancies, the maternal iron demands are magnified, estimated at 1.8 times more than in singleton pregnancies due to greater maternal red blood cell mass and plasma volume expansion as well as increased fetal and placental requirements. With a lack of randomized controlled trials assessing the adequacy of iron supplements on twin pregnancy, various recommendations are based on level 3 clinical expert opinions at most.
The Shenzhen Birth Cohort Study was set up to investigate the effect of early life environmental exposures on short- and long-term health consequences in Shenzhen, China.
This proposed study is to test whether Health Check-up for Expectant Moms (HCEM), a computer-delivered screening and brief intervention (SBI) that simultaneously targets sexually transmitted infection (STI) risk and alcohol/drug use during pregnancy, reduces antenatal and postpartum risk more than an attention, time, and information matched control condition among pregnant women seeking prenatal care.