View clinical trials related to Preterm Birth.
Filter by:To investigate the incidence of preterm birth in IVF fresh embryo transplantation cycle patients after prolonged vaginal progesterone treatment
Occupational physical activity during pregnancy may decrease blood supply to the uterus and be connected to negative pregnancy outcomes. Every year, this notion prompts many pregnant women to be absent from their workplace in order to protect themselves and their unborn children. However, little is known about the actual extent and impact of physical workloads among expecting mothers in Denmark and whether this high rate of pregnancy related absence is necessary. In consequence, current guidelines from the Danish Working Environment Agency have omitted former limits on lifting during pregnancy due to lack of evidence. (1) Former studies have mainly been based on self-reported data with no measurements of exposures. A comprehensive evaluation of physical exposures in Danish workplaces and potential consequences for pregnant women will provide a rational basis for organization of work with improved options for prevention of adverse health effects. By use of measurements, observations and real-time self-report, the overall aim of the project is to attain precise data on physical workloads (lifting, standing/walking and forward bending) among pregnant employees in the Danish workforce, and investigate how these relate to discomforts, complications and negative pregnancy outcomes.
The goal of this Phase I clinical trial is to generate proof-of-concept data to demonstrate that a cervical cup in combination with vacuum application will create negative pressure on uterine cervical tissue, thereby creating immediate cervical stiffness in order to prevent cervical ripening that is associated with spontaneous preterm birth. Aim #1: Conduct a Phase I clinical study. 1A: Evaluate the ability of a cervical cup to improve cervical tissue physiology of uterine cervices in vivo for nonpregnant women. 1B: Evaluate the ability of a cervical cup to be safely placed and removed on uterine cervices in vivo for nonpregnant women.
A Longitudinal Study of Function, ADL, and Quality of life of Patients with Developmental Disabilities
Preterm birth (PTB) is a major challenge to perinatal health. It accounts for 75% of perinatal deaths and more than 50% of long-term neurological disabilities. Neonates born preterm are also at risk of significant comorbidities, for example respiratory distress syndrome, chronic lung disease, retinopathy of prematurity, necrotizing enterocolitis, intraventricular haemorrhage and sepsis in the short term, as well as cerebral palsy, motor and sensory impairment, learning difficulties, and increased risk of chronic disease in long run. Twin pregnancy is associated with a higher risk of PTB when compared to singleton pregnancy. The National Vital Statistics reveals the PTB rate is 8.2% and 60.3% in singleton and twin pregnancy respectively in 2018. The mechanism of PTB in twin pregnancy is not completely understood and may be different from that of singleton pregnancy. At present, there are no good strategies to prevent PTB in twin pregnancy. In singleton pregnancy, metformin has been used for the treatment of gestational diabetes in pregnant women with obesity/ overweight or polycystic ovarian syndrome (PCOS). The rate of PTB of pregnant women with PCOS is significantly lower after using metformin. A decreasing trend of PTB is also noted after metformin use in obese pregnant women without PCOS. There is no study to investigate the effect of metformin in twin pregnancy. Premature uterine and amnion stretching in twin pregnancy can trigger preterm labour by increased prostaglandin synthesis and interleukin-1, activation of activator protein-1, expression of connexin-43 and stimulation of stretch dependent focal adhesion signaling. Inflammation is another risk factor for PTB. Metformin is an anti-inflammatory agent which can suppress inflammatory cytokines production and downregulate AMP-activated protein kinase medicated connexin-43 and nuclear factor κB activation. Anti-inflammatory actions of metformin can also reduce production of nitric oxide, prostaglandin E2 and pro-inflammatory cytokines through inhibition of NFκB activation in macrophages. Another possible mechanism to prevent PTB is the inhibition of mammalian target of rapamycin complex 1,which has a role in the timing of birth, by AMP-activated protein kinase. Therefore, metformin can be potentially used to prevent PTB in twin pregnancy. However, its effect in twin pregnancy has not been studied. The objective of the study is to determine if the use of metformin in twin pregnancy can prevent PTB.
Use of continuous positive airway pressure (CPAP) in preterm neonates has traditionally been limited to between 5-8 cmH2O. In recent years, use of CPAP pressures ≥9 cmH2O is becoming more common in neonates with evolving chronic lung disease, in lieu of other non-invasive modes or invasive mechanical ventilation. A particular knowledge gap in the current literature is the choice of the level of pressure level when using High CPAP as a post-extubation support mode. In this study, we will comparatively evaluate the short-term impact of two different high CPAP pressures when used as a post-extubation support mode in preterm neonates.
Lung immaturity is a major issue in neonatal unit.The surfactant administration improves the pulmonary prognosis in premature infants with hyaline membrane disease who escape continuous positive airway pressure (CPAP). This surfactant had been administered at 5h25min of life in Saint Etienne from 2016 to 2019. Studies suggest that the earlier the surfactant is administered, the more it can reduce the rate of bronchodysplasia and mortality. And some studies show a pulmonary ultrasound could help to administrate the surfactant earlier This is why a new faster strategy for diagnosing preterms needing surfactant will be usefulness and have been done in Saint-Etienne since 2021 thanks to a ultrasound score (LUS).
The investigators will test a new medical grade swaddling system for optimal and more appropriate positioning for preterm infants. This is a trial focused on sleep state, state regulation and long-term neurodevelopment. The central hypothesis is that this novel swaddling method will promote sleep and an optimal sleep-wake cycle, while also improving the neurodevelopment of preterm infants. It is proposed that adequate positioning and secondary feedback of natural movement of arms and legs stimulates and fosters normal brain development.
Preterm labor is one of the problems of obstetrics, and is one of the leading cause of neonatal morbidity and mortality. The incidence of preterm birth is around 7 to 9 %. The preterm baby is prone to respiratory, renal, neurologic and gastrointestinal problems. The correct diagnosis should be followed by the early administration of the most effective tocolytic agent with least side effects for both mother and fetus. Nifedipine, a calcium channel blocker, has gained a world-wide popularity recently since it has the least side-effects on both mother and fetus. In the present study, we aimed to evaluate the success rate of tocolytic agent 'nifedipine' on the spontaneous preterm labor of singeton pregnant women with intact amnionic membrane.
Breastfeeding has well-established immunity and developmental benefits for newborns, yet mothers of preterm infants often struggle to provide sufficient breast milk. The investigators hypothesize that supplementing mothers of preterm infants with nicotinamide riboside (NR) during early postpartum will result in increased milk production. NR is a unique precursor to NAD+, which functions in whole-body metabolism, including that which supports the elevated energy demands of lactation. In lactating rats, NR supplementation improved milk quantity and quality, with metabolic benefits for the mother and lasting protective advantages for the offspring. No studies have been conducted to date that explore the short- or long-term use of NR for increasing milk supply in lactating women. This study will follow a small cohort of women and very preterm infants in the NICU throughout two intervention phases-- one in which each mother will randomly receive either NR or a placebo, then the opposite treatment-- to determine the effect of maternal NR supplementation on expressed milk volume and other markers of metabolism.