View clinical trials related to Obstetric Labor, Premature.
Filter by:The objective of this study was to investigate the effect of the use of sonographic cervical length (CL) on the hospital stay in women admitted because of preterm labor.
The present study will be undertaken to establish whether genetic variations of PAR1 could be involved in the occurrence of any of the "placental syndromes" of preterm delivery, preeclampsia, and/or small for gestational age babies and recurrent pregnancy loss.
Pre-Term Labor (prior to 37 weeks gestation) is the largest single cause of infant morbidity and mortality and is frequently associated with long-term disability. Oxytocin is a hormone produced by the body during labor. GSK221149A is an experimental drug that will be used to block the effects of oxytocin, and therefore pause or prevent contractions. In this study, patients with preterm labor will be given an intravenous infusion of GSK221149A over approximately 12 hours followed by an oral tablet in Parts A and B. In part C of this study, patients with preterm labor will be give an intravenous infusion of GSK221149A over approximately 48 hours. The use of a rescue tocolytic is allowed in the study.
The aim of the study is to determine if N-acetylcysteine (a potent free radical scavenger) prevents the occurrence of adverse neonatal outcomes in preterm deliveries complicated by infection associated with preterm labor or preterm premature rupture of membranes (PPROM). The working hypothesis is that in pregnancies complicated by intra-amniotic infection or inflammation, N-acetylcysteine protects the fetus by preventing the development, or decreasing the intensity and/or progression of the fetal inflammatory syndrome.
The objective of this study is to investigate the effect of the use of both sonographic cervical length (CL) and fetal fibronectin (FFN) on the length of outpatient triage and preterm labor interventions in symptomatic women with intact membranes. We performed a randomized trial of the use of transvaginal ultrasound cervical length and fetal fibronectin in women being evaluated for suspected PTL at a gestational age between 24 and 33 weeks 6 days. Women are randomized to either a standard (blinded) or a protocol arm. Women in the standard arm are evaluated without the results of the CL and FFN while women in the protocol arm are evaluated using the results of the CL and FFN and managing physicians are asked to follow a specific PTL algorithm to determine a women’s eligibility for treatment. The primary outcome is length of stay in the triage area before discharge.
A major goal of modern perinatal and neonatal medicine is to reduce the rate of developmental disabilities, especially mental retardation. Cerebral palsy is frequently associated with neurologic abnormalities and mental retardation. Improvements in neonatal intensive care have resulted in improved survival of very low birthweight infants but also in an increased frequency of cerebral palsy. Prematurity is a leading risk factor for cerebral palsy. Two thirds of preterm neonates are born to mothers with preterm labor with intact membranes or preterm premature rupture of membranes. A growing body of evidence suggests that these conditions are heterogeneous. This is an observational cohort study designed to identify the mechanisms of disease in patients with preterm labor/contractions and preterm premature rupture of membranes and to describe the relationship between clinical, biochemical, histological, biophysical parameters and the development of infant neurological disorders.
The aim of this project is to establish a clinical database and a bank of biological materials which will be used to improve the pathophysiologic understanding of the mechanisms underlying various pregnancy diseases. The US-Mexico Reproductive Health Research Development Workshop, sponsored by the NIH, recommended that the setting up of "tissue, blood, and placental banks from human and relevant animal models should be developed to aid in understanding how prenatal conditions relate to pathological consequences in adult life". A large observational study in the United States of America, the National Collaborative Perinatal Project (NCPP), was conducted over 30 years ago (1959-1966) and has yielded a large amount of useful information. However standards of obstetrical and neonatal care have changed significantly over the last 30 years. Thus the setting up of a contemporary clinical perinatal database and bank of biological materials is required. In order to obtain sufficient data for statistical analysis a large sample size is necessary. We propose to carry out this project at Sotero del Rio Hospital, Santiago Chile as this hospital has a delivery rate of approximately 14,000 women per year. Previous research collaborative efforts between the Sotero del Rio Hospital and the PRB have been carried out in compliance with NIH research regulations. Sotero del Rio Hospital has had previous successful negotiations of Single Project Assurances (SPA) with the NIH. Information will be collected from clinical history taking, physical examination, sonographic examination and standard laboratory procedures. The bank of biological fluids and tissues will include maternal blood, umbilical cord plasma, amniotic fluid, maternal urine and placental tissue. No procedures will be carried out on patients that are not part of standard of care at Sotero del Rio Hospital.
Primary Hypothesis: Acute tocolysis (48 hours) using oral nifedipine is more effective than intravenous magnesium sulfate in prolonging pregnancy in women with preterm labor with intact membranes between 24 and 32 6/7 weeks' gestation.
Transvaginal ultrasound of the cervix has become a common tool to evaluate patients who are at risk for preterm delivery. A shortened cervical length has been associated with an increased risk of preterm delivery. Dynamic cervical change is visible shortening(>6mm) of the cervix seen during the ultrasound examination. Prior studies have shown that the presence of dynamic change in patients with a shortened cervical length(<3cm) is not independently predictive of preterm delivery. However, a subset of patients with normal initial cervical length(>3cm) and dynamic change did demonstrate an increased rate of preterm delivery. Because this was a small sub-group, the present study was designed to obtain a larger sample size for further evaluation. The second focus of this study involves patients with a dilated cervix and whether cervical length adds predictive value to gestational age at delivery. Patients presenting to with symptomatic preterm labor(vaginal pressure or uterine contractions), who consent to the study, will undergo the standard evaluation for preterm labor(described in detail below.) The only additional evaluation is a prolonged transvaginal ultrasound of approximately 10 minutes to evaluate for the presence of dynamic change during a contraction. Null hypothesis: Symptomatic preterm labor patients, with normal initial cervical length(>3cm), who exhibit dynamic cervical change deliver at a gestational age equal to those without dynamic change. Alternative hypothesis: Symptomatic preterm labor patients, with normal initial cervical length(>3cm), who exhibit dynamic cervical change deliver at an earlier gestational age than those without dynamic change.
This is a trial comparing the efficacy of oral ritodrine in the form of sustained release capsules for the maintenance of uterine quiescence after successfully treated episode of threatened preterm labor.