View clinical trials related to Very Preterm Infants.
Filter by:The goal of this randomized clinical trial is to compare the effect of higher (10 mg per day) versus standard (1 mg per day) doses of zinc supplementation The main questions it aims to answer are: - Growth velocities and delta z-scores during the date of start intervention until the end of the time interval (at least 2 weeks of intervention on date of 44 weeks of postmenstrual age or discharge whichever came first) in very preterm infants with a birthweight less than1800 grams. - Growth and neurodevelopment at 24 months postnatal age
Preterm infants are especially vulnerable to gut microbiota disruption and dysbiosis since their early gut microbiota is less abundant and diverse. Several factors may influence infants' microbiota such as mother's diet, mode of delivery, antibiotic exposure and type of feeding. The main goal of this observational study is to evaluate the impact of different types of feeding (breast milk, donor human milk and preterm formulas) on the intestinal microbiota of preterm infants hospitalized in the neonatal intensive care unit (NICU) of Maternidade Alfredo da Costa (MAC). Furthermore, the influence of mode of delivery and the mother's diet, among others factors, on vertical microbiota transmission will be evaluated. After delivery, mothers will be asked to collect their own fecal samples and will be invited to complete a semi-quantitative food frequency questionnaire. Stool samples will be collected from premature infants every 7 days. DNA will be extracted from fecal samples and different bacterial genus and species will be analyzed.
The primary aim of this study is to investigate the relationship between early plasma protein levels and hemodynamics in very preterm infants during postnatal transition. Secondary aims are the following: i) to evaluate maternal and neonatal factors affecting plasma protein level at birth; ii) to evaluate the relationship between plasma protein level and albumin level on the first day of life; iii) to evaluate the association between early hypoproteinemia and neonatal mortality and morbidity in very preterm infants.