View clinical trials related to Premature Birth.
Filter by:The primary purpose of the protocol is to compare the diagnostic accuracy in terms of positive and negative predictive values of Premaquick © (combined detection of IL-6 / IGFBP-1 total / IGFBP-1 native) and Quikcheck fFN ™ (fibronectin detection) tests for prediction of spontaneous delivery within 7 days in women with threatened preterm labor. The study hypothesis is that combined detection of IL-6 / IGFBP-1 total / IGFBP-1 native dice the admission will improve the prediction of delivery compared to the detection of fetal fibronectin alone in women with threatened preterm labor.
Background: Preterm birth is the leading cause of perinatal morbidity and mortality in multiple pregnancies. The medical and educational expenditure and lost productivity associated with preterm birth is very high. Sonoelastography is a new ultrasound technology which has enabled the measurement of tissue stiffness and it has been widely applied in assessment of breast lump and liver cirrhosis. Sonoelastography is potentially useful for the objective assessment of cervical consistency which could be related to risk of preterm birth. Objective: To assess the cervical consistency by shear wave elastography in prediction of preterm birth in multiple pregnancies. Setting: This is a prospective non-interventional observational study. Subjects: Chinese women carrying multiple pregnancies attending antenatal visit are invited to join the study. Method: Demographic data and antenatal history will be obtained. Transvaginal scan for the cervix will be performed by a trained researcher or obstetrician for the assessment of cervical consistency, cervical length, posterior cervical angle and fetal viability. The measurements will be repeated during 5 antenatal visits or separate study visits at 11-15, 16-19, 20-23, 24-27 and 28-32 weeks of gestation. At the end of pregnancy, the delivery data and neonatal outcome will be collected. Sample Size: The risk of preterm birth <34 weeks in twin pregnancies is approximately 20%. A sample size of 120 was determined as being sufficient to test the diagnostic performance of cervical elasticity in mid trimester assuming that the risk of preterm delivery <34 weeks vs >34 weeks is 1:5 and that cervical elasticity area under curve (AUC) of the receiver operating characteristics (ROC) curve was 0.7, with 80% power and alpha of 5%. Data Analysis: Changes in the cervical elastography will be compared using the Student paired two-tailed t test, and in the case of unequal standard deviation (SD), using a Wilcoxon signed-rank paired two-tailed test. For comparison of frequencies, Chi-square test, or a two-sided Fisher exact test will be used where appropriate. Linear regression will be used to assess the correlations. The level of statistical significance is set at p<0.05 (two-sided).
Noninvasive respiratory supports (NRS), such as continuous positive airway pressure (CPAP), noninvasive ventilation, high flow nasal cannula (HFNC) or nasal oxygen (O2), are commonly used in preterm newborns hospitalized in neonatal intensive care unit. However, given the lack of validated criteria, clinicians usually choose the NRS according to clinical parameters and patients' comfort. Several studies have demonstrated the interest of the measurement of the work of breathing (WOB) to optimize the settings of NRS in children, but no study has already demonstrated the utility of WOB to optimize the settings of NRS in preterm infants. Therefore, the aim of this study is to measure the WOB during the utilisation of three different NRS (CPAP, HFNC, O2), in order to optimize the choice of the type and settings of NRS in a randomized group of 30 newborns born prematurely before 30 gestational weeks and still requiring NRS at 29 post conceptual weeks. Moreover, the investigators will compare in the newborns with the optimized NRS by WOB vs. a standard care control group (NRS type and settings determined as clinical routine): 1) the respiratory morbidity and mortality one month after the initial assessment, and at the time of hospital discharge (or transfer) or at 36 weeks of age corrected (whatever comes first), 2) the weaning time of the NRS, 3) the incidence and severity of broncho-pulmonary dysplasia (BPD) at 36 weeks of age corrected. Indeed, incidence of BPD is still around 40% in premature infants born before 28 gestational weeks. The hypothesis of the investigators' study is that the optimization of the type and settings of the NRS could reduce the weaning delay and contribute to reduce the incidence and severity of BPD in premature newborns.
This is a non-blinded randomized screening trial of asymptomatic singleton pregnancies without prior spontaneous preterm birth who are randomized to either transvaginal ultrasound cervical length screening program (i.e. intervention group) or no screening (i.e. control group). Women are consented and randomized at the time of their routine anatomy scan between 18 0/7 and 23 6/7 weeks. Women randomized in the transvaginal ultrasound cervical length screening will receive a single transvaginal ultrasound cervical length measurement after the anatomy scan. The cervical length will be measured by operators with certification of competence in the technique.
Carvedilol is known to be effective in reducing ventricular arrhythmias and mortality in patients with heart failure. It is suggested that one of the mechanisms is its ability to block store overload-induced Calcium release which activates spontaneous calcium release by Ryanodine receptors. Ventricular outflow tract tachyarrhythmia is known to be associated with calcium overload due to activation of Ryanodine receptors. The aim of this study is to evaluate the efficacy of Carvedilol on premature ventricular complex(PVC)/ventricular tachycardia(VT) originating from outflow tract.
Lifelong premature ejaculation (LPE) is a common male sexual dysfunction with a high prevalence in global. Up to now, the etiology of LPE remains unclear. In recent years, dapoxetine, a highly potent serotonin-transporter inhibitor, has been used for treating premature ejaculation. However, the underlying mechanism of dapoxetine was unknown. Recently, with widespread use of neuroimaging techniques, like positron emission tomography and magnetic resonance imaging (MRI) in basic science, researchers can acquire human data on cerebral base of human sexual behavior, not only in normal subjects but also in patients with sexual dysfunction. Therefore, in order to further understand the biological mechanism of LPE and the brain targets of dapoxetine, the present study would investigate the brain changes of LPE and the effect of dapoxetine on brain activation by using MRI technology.
Preterm birth is a common problem in obstetric care,with estimates ranging from 5% in several European countries to 18% in some African countries, Preterm labor defined as delivery before 37 completed weeks is the leading cause of perinatal and neonatal morbidity and mortality and strongly related to the developmental and neurological disabilities later in life.. There is still considerable uncertainty regarding the optimal progesterone type, route of administration, dosage and timing of start of therapy to prevent preterm labor in risky women
Concentrations of micronutrients (especially purine and pyrimidine) in cord blood, blood of mothers and infants and human milk is studied
Lungs of babies born early are not fully developed and they often need a machine to help them breathe. The traditional approach to provide this support is with a breathing tube passed into the windpipe. However, we know that breathing tubes can cause injury to the fragile lungs of premature babies. Providing breathing support through nose-masks instead of breathing tubes (called nasal breathing support) is becoming popular, as it is gentler on developing lungs. Doctors, in trying to limit the use of support with a breathing tube, are using many different forms of nasal breathing support. The most common form is nasal continuous positive airway pressure (CPAP) which delivers a constant pressure and the baby breathes on his on her own. However, when this strategy is no longer able to support a premature baby's breathing, the best way to provide breathing support is not known. Some doctors use a strategy called "nasal intermittent positive airway pressure" (NIPPV) which gives the baby artificial breaths through the nose-mask. Others simply increase the pressure on nasal CPAP to higher than traditional levels. In the first study of its kind, we will compare these two strategies of nasal breathing support given to premature babies.
to test the hypothesis that activity restriction in women with singleton gestations and with arrested PTL would reduce the rate of PTB.