View clinical trials related to Pregnancy.
Filter by:The purpose of this study is to study longitudinal changes in maternal metabolism and pregnancy outcomes in obese pregnant women.
Since normal pregnancies are associated with dilutional anemia, due to a greater increase in plasma volume with a smaller increase in RBC mass, it is important to properly diagnose IDA according to the levels of serum ferritin. Previous studies examining the optimal iron dose have shown that adjustment of iron supplementation according to serum ferritin levels in early pregnancy could be beneficial. Nonetheless, there is no consensus regarding the appropriate dose of iron during pregnancy, its dose-response curve and its effect on serum ferritin levels. In this trial the investigators sought to assess the efficacy of doubling the daily iron supplement dose in pregnant women with IDA.
The use of bariatric surgery has risen subsequently over the last decade, especially in women of reproductive age. (Unplanned) pregnancies in this subgroup are not rare because of e.g. an increased fertility (because of the weight loss) and a possible ineffectiveness of contraceptives (because of a malabsorption in the intestine). Although a pregnancy after bariatric surgery is generally known as safe, there are a few studies that indicate that a pregnancy after a bariatric surgery is not always without complications, and that it should be considered as a high risk pregnancy. The research on pregnancy outcomes after this type of surgery is rather limited to a few small, mainly retrospective, observational case-control and cohort studies and a limited amount of case studies. For risk- and prognose related issues, e.g. the effect of bariatric surgery on fertility, timing of the pregnancy, development of complications during the pregnancy and pregnancy outcomes, large prospective cohort studies are needed. Besides, breast feeding practices and breast milk composition have scarcely been investigated in this population. The energy content of breast milk could possibly be influenced by a state of malabsorption after the procedure. Low amounts of vitamin B12 have also been noticed in the breast milk of women the surgery. The overall objective of this study is to establish a group of women at reproductive age (age 18-45) with a history of bariatric surgery and to generate an extensive database for future analysis. The final goal of the researchers is to develop guidelines or recommendations on how to manage pregnancies after bariatric surgery, based on large-scale prospective research. The study design is a multicentric observational and prospective cohort study. Participants will be followed from the moment of surgery until 6 months postpartum and they can be included on several time points (before surgery, after surgery (<12 months); after surgery (>12 months) or during the pregnancy). Both retrospective and prospective data concerning the medical background, fertility (menstrual cycle), lifestyle (e.a. food, physical activities, smoking, sleeping), blood samples, psychological factors (fear and depression), sexuality, quality of life and pregnancy outcomes will be collected. Data collection by the investigators will happen in a web-based database and by direct online registration by the subjects.
This is prospective cohort study in pregnant women who present with signs and symptoms of possible deep vein thrombosis (DVT). All patients will have the same method of assessment of their DVT symptoms (the LEFt clinical decision rule will be applied and D-dimer test will be done) to determine if a compression ultrasound is required. All patients will be followed for a period of 3 months.
The focus of this research is to create a repository of ultrasonographic images and their corresponding medical data from pregnant women (the mothers of the fetuses that are imaged), focusing on fetal anomalies. These women will visit the obstetrical clinics at Regional One Health and the Le Bonheur Fetal Center.
The investigators will try to assess the effect of endometrial injury preceding the intrauterine insemination cycle on the pregnancy rates compared to cycles with luteal phase support and the control group.
Examination of iron supplements routinely used in pregnancy to compare these with one another regarding effectiveness in the prevention of iron deficiency. Determination of ferritin / hemoglobin every pregnant woman under the first routine check. Classification into one of three subgroups (group 1: iron sulfate, Group 2: iron polymaltose, Group 3: multivitamin- multimineral) depending on the measured values. Repetition of hemoglobin every 8 weeks, at the entrance to birth and postpartum day 1, additional provision of ferritin at the entrance to birth. In addition, registration of each child's birth weight and gestational age.
The aim of this prospective longitudinal study was to investigate the relationship between placental thickness during the second and third trimesters and placental and birth weights.
The study examines the association between the amount of physical activity of the patient, ie the number of steps daily / weekly, and the pregnancy rate after embryo transfer.
The investigators aim to integrate the outcomes in physiology-based pharmacokinetic (PBPK) models to put the generated data into context with medical conditions that require maternal or fetal drug therapy (e.g. HIV). These models will be validated with available 'real-life' maternal and fetal PK data, such as data from the PANNA network. PBPK models of drug therapy during pregnancy will provide a powerful tool to 1.) assist in designing rational dosing adjustments, 2.) prevent intervention-based research in pregnant women in the future, and 3.) guide future development of new molecular entities (e.g. preventing heavy investment in drugs with high predicted fetal exposure and potentially toxic effects in utero).