View clinical trials related to Pregnancy.
Filter by:It has been well accepted that maternal thyroid dysfunction has adverse affects on both mothers and fetuses. However, the dramatical changes during pregnancy make the interpretation of thyroid function test (TFT, i.e. free triiodothyronine [FT3], free thyroxine [FT4] and thyrotropin [TSH]) very difficult. Previous studies have shown that the level of thyroid hormones differs from non-pregnant population and varies from gestational ages. Moreover, studies have shown the agreement among different instrument platforms was quite low. This study is aimed to determine gestational age specific TFT reference ranges of the local pregnant population for all available platforms currently used under Hospital Authority and Department of Health.
In vitro fertilization (IVF) is associated with an increased risk of venous thromboembolism and in particular pulmonary embolism during the first trimester. It is not known whether this increased risk of pulmonary embolism is present both after fresh and frozen embryo transfer. Objective: To assess whether the risk of pulmonary embolism and venous thromboembolism during the first trimester of IVF pregnancies is associated with both fresh and frozen embryo transfer. A population-based cohort study with linked data from nationwide registries on women in Sweden giving birth to their first child 1992-2012
The purpose of this study is to collect whole blood samples from women with viable pregnancies of at least 10 weeks gestation (at any risk for fetal chromosomal anomaly) for future testing with an investigational noninvasive prenatal test(s) (NIPTs), and to establish clinical truth compared to a clinical reference standard.
The investigators are studying strategies and tools that women can use to manage stress and wellness during pregnancy. The purpose of this project is to test a technology-enhanced version of a wellness intervention for women during their pregnancy (the Mothers and Babies course; MB). The technology that the investigators will test includes wearable heart rate sensors, smartphone text message surveys, and intervention materials delivered through text message.
Melatonin is well known for its role in the sleep-wake cycle and is synthesised in response to low light levels from the pineal gland. In our previous study it was found that serum melatonin levels increased dramatically during pregnancy, such that levels were up to 100 fold higher in the third trimester compared to healthy non-pregnant women. The placenta contains the enzymes which are involved in synthesising melatonin but it is unclear if this is the source of the high levels in pregnancy. Severe pre-eclampsia has been reported to be associated with low levels of melatonin. In this study its is proposed to measure serum melatonin immediately before and after delivery and in cord blood and relate the levels to those in the placenta itself. This will contribute to the potential role for melatonin as a biomarker for obstetric disease and potentially as a therapeutic agent in future. This observational pilot study aims to measure serum and placental melatonin levels (as the major metabolite 6-hydroxymelatonin sulphate) in pregnant women undergoing elective Caesarean section.
This study is investigating whether use of postpartum family planning (PPFP) increases if messages on PPFP and, if desired, PPFP services are integrated into as many contacts as possible between women/couples and the health system during pregnancy and the first year after birth. Health system contacts may be at health facilities (including antenatal, labor and delivery, postnatal, and child immunization visits) or, with Ethiopia's Health Extension Program, at households or health posts in the community.
It is observed that pregnant women using psychoactive substance (s) have a more random and more accidental pregnancy follow-up than women with no addictive problems. The consumption approach can be either omitted during the pregnancy monitoring, or entrusted to the course or more often in late pregnancy or occurs more brutally during delivery at the time of complications (neonatal or obstetric). In this context, health professionals are looking for levers that allow women to take appropriate care quickly. This difficulty of access to care questions us and all the more because the time of the pregnancy is a moment of important psychic reorganization conducive to modify its habits, to change its glance on its consumptions and thus to start a care concerning addiction. Invesigators hypothesize that this population has less access to medical care during pregnancy for fear of stigmatization by the health care provider. Invesigators propose a multicenter qualitative study based on individual clinical interviews to collect the testimony of women who used psychoactive substance (s) during their pregnancy. The purpose of this work is to identify ways to improve the multidisciplinary medical management of these women by focusing on the representations they can make care of.
To investigate the association of maternal serum concentrations of pentraxin 3 in early pregnancy with gestational diabetes mellitus and to explore its potential value in the prediction of GDM.
The impact of chronic HIV infection and pregnancy on different aspects of the humoral response to pertussis immunization with the TDaP vaccine will be studied. The parameters will be measured in 3 groups (HIV-infected pregnant, HIV-uninfected pregnant and HIV-uninfected non pregnant) at different time points before and after immunization (7-10 days, 30 days and at delivery). The transfer ratio and the quality of maternal antibodies will be studied in cord blood.
The aim of this study was to investigate salivary and gingival crevicular fluid (GCF) levels of MMP-8, MMP-9 and TIMP-1 during 2/3 trimester of pregnancy and after delivery