View clinical trials related to Preterm Birth.
Filter by:In the proposed study the investigators will develop an early prenatal preventive intervention targeting anxiety and conduct a randomized controlled trial in Pakistan to test its efficacy in reducing generalized anxiety disorder and major depression in mothers in late pregnancy and the postnatal period. Investigators will evaluate the impact of the intervention on fetal and infant growth restriction as well as examine how the impact of the intervention is mediated (to elucidate mechanisms) and/or modified (to help optimize future adaptations of the program) by various social factors. A cost-effectiveness evaluation will shed light on the costs and benefits of intervention components in relation to outcomes, enabling policy-makers and public health planners to scale up this intervention according to resource budgeting requirements.
The objective of this study is to quantify the mechanical environment of pregnancies complicated by a short cervix and randomized in the Trial of Pessary in Singleton Pregnancies with a Short Cervix study with ultrasound imaging and aspiration. Aim 1: To determine the biomechanical properties of a prematurely remodeled cervix. Aim 2: To determine the impact of pessary placement on the biomechanical properties of a prematurely remodeled cervix and establish if the pessary reduces the mechanical load on the cervix through computer modeling informed by ultrasonographic measurement and cervical stiffness measurements. Aim 3: To determine if the differences in the cervical biomechanical properties after pessary placement lead to improved birth outcomes as compared to the progesterone only group.
This study compares the effectiveness of cervical pessary and cervical cerclage with or without vaginal progesterone for prevention of preterm birth in women with a twin pregnancy and a cervix ≤28 mm. Participants will be randomly assigned in a 1:1:1:1 ratio to receive cerclage, pessary, cerclage plus progesterone or pessary plus progesterone.
Preterm Birth is the number one cause of infant morbidity and mortality worldwide and represents an important health disparity in the United States, particularly across the state of Kentucky. The best biomarker for the prediction of preterm birth is transvaginal ultrasound (TVU). This study will attempt to identify and rectify provider and patient related barriers to TVU screening implementation.
Twin pregnancies are at an increased risk of early delivery. One of the reasons for this may be due to a weakened neck of the womb (cervix). There are 2 main ways to manage a weakened cervix in pregnancy. One option is to do nothing (conservative approach). The other is to strengthen the cervix with a stitch (cerclage) to provide extra support. There is no good quality convincing evidence to suggest which of these has better outcomes for mum and babies in twin pregnancies. This trial aims to determine whether securing the weakened cervix with a cerclage will help to prolong the pregnancy and prevent early delivery. Babies who are born early experience multiple complications including lung, brain and learning difficulties. Therefore, the study will also aim to determine whether prolonging the pregnancy by inserting the cerclage reduces the number of babies affected by these problems. In order to carry out a fair study we aim to perform what is known as a randomised controlled trial. We will include in the trial two major groups: (1) women pregnant with twins, who present with a weakened cervix and no signs of infection between 14 and 26 weeks of pregnancy. This will be diagnosed on an internal examination or ultrasound scan, and (2) women pregnant with identical twins complicated by twin-to-twin transfusion syndrome (TTTS) treated by Laser surgery between 16 and 26 weeks in whom a short cervix (<15mm) is identified. TTTS is rare but potentially devastating condition which occurs in about 10-15% of identical twin pregnancies. If left untreated, 80-90% of these babies will die. Overall, best first-line treatment of TTTS is laser surgery. Cervical length is a strong predictor of preterm delivery in these pregnancies. Participants will be allocated randomly into the intervention (cerclage) or control (conservative) group. The procedure to insert the cerclage will be performed under an anaesthetic to minimise discomfort and you will be admitted for 2-3 days following the operation to ensure there are no complications or signs of labour. Women in both groups will be followed up in the same manner until they deliver and the pregnancy outcomes will be compared between the 2 groups to determine which management option is best.
The PKUBC-T is a prospective cohort study carried out in Tongzhou district of Beijing, China. The primary aim of this study is to investigate the short-term and long-term effects of pre-pregnant and prenatal exposure on maternal and child health. Data are collected regarding environmental, nutritional and lifestyle exposures as well as short-term and long-term health outcomes of mothers and their children from birth to 6 years old. Biological samples including blood and tissue samples are also collected from mothers and their children.
Heparanase is an endo-β-glucuronidase that cleaves heparin-sulfate (HS) side chains of heparan sulfate proteoglycans, an integral constituent of the extra cellular matrix (ECM). This study aims to investigate the association between heparanase expression in the human placenta and preterm birth (PTB) . The investigators hypothesize that an abnormal placentation causes relative placental ischemia that induces higher rates of heparanase expression.
This study investigates immunological and clinical markers in threatened preterm birth aiming to create a prediction model for preterm birth.
The study is to evaluate the accuracy of a test device called "PAMG-1" to see if a pregnant women has ruptured membranes in comparison to standardly used testing methods.
Preterm birth (PB) continues to be the main cause of perinatal morbidity and mortality, with emotional and economic consequences. Despite improvements in health, PB prevalence remains stable, possibly due to complex causes such as maternal age, stress, multiparity, etc. Shortening of the uterine cervix in early stages of gestation is a risk factor for PB. The presence of abnormal vaginal microbiota in the early stages of pregnancy is als a risk factor for PB. However, no studies have analysed the impact of probiotics (live microorganisms which, in adequate amounts, confer a health benefit on the host) on the PB in high-risk PB patients (pregnant women with threatened preterm delivery, i.e., uterine contractions and cervical shortening, with a 30% PB risk before 34 weeks, and 50% PB prior to 37 weeks (> 6-10% PB). Similarly, the effect of probiotics on vaginal flora dominated by lactic acid-producing bacteria could be analysed.