Active clinical trials for "Enterocolitis, Necrotizing"

The aims are to 1) compare two probiotic treatments (multi-strain synbiotic vs. multi-strain probiotic) on bifidobacteria fecal colonization counts at 1, 2, 3, and 4 weeks of life, 34 weeks corrected gestation age (CGA) ; 2) compare infants successfully colonized with probiotic organisms to infants not successfully colonized at 1, 2, 3, and 4 weeks of life, 34 weeks CGA on infant outcomes and on stress biomarker patterns at birth, day of life (DOL) 1, DOL 7; 3) determine long-term safety and outcomes of probiotic treatments at 6, 16, and 24 months CGA.

Premature birth is a major cause of neonatal death in addition to neonatal asphyxia and infections. Early in life, premature babies must get aggressive nutrition so that there is no extrauterine growth restriction (EUGR) in the Intrauterine Growth Restriction (IUGR) group compared to the non-IUGR group. Other factors that also play a role are long episodes of fasting, the fulfillment of nutrition (macro and micronutrients) from the start, time to start breastfeeding (ASI), duration of parenteral total administration, the incidence of respiratory distress syndrome and incidence of necrotizing enterocolitis. Zinc is one of the micronutrients which is very risky for deficiency in premature babies. Babies with zinc deficiency experience growth disorders as much as 67%. In India, infants who received zinc supplementation increased after being given 10 days of zinc supplementation and lower mortality rates in the group with supplementation. Very low birth weight babies and bronchopulmonary dysplasia who received zinc supplementation during the week showed good clinical progress and the growth rate also increased. The investigators believe this study has the potential for decreasing infant mortality from its current level and can be a growth indicator for preterm babies.

Circulating markers to diagnose complications (sepsis, necrotizing enterocolitis) in preterm infants are often inaccurate, partly due to the lack of comprehensive studies with temporal evaluation from birth until a disease onset. The investigators plan to collect weekly blood samples of preterm infants from birth until 4 weeks of age to comprehensively characterize differential protein and epigenetic markers in infants with and without complications (sepsis, necrotizing enterocolitis, chorioamnionitis).

Critically ill babies less than 1 month of age have deficient amounts of the antioxidant glutathione and a high incidence of disease associated with oxidative injury compared to healthy babies. These diseases include but are not limited to damage to the eyes, lungs, and intestines. Frequently becoming chronic and potentially life threatening, these diseases result in a significantly decreased quality of life to the infant along with increased costs to the infant's family and society. The amino acid cysteine comprises a third of the tripeptide glutathione and directly influences glutathione production. Older children ill with infection and stable, premature neonates administered cysteine supplementation to their diet have been previously shown to increase their glutathione production and concentrations. Furthermore, cysteine supplementation in the ill children resulted in a quicker resolution of their illness. Although most critically ill babies require IV nutrition (i.e., TPN) before and during their illness, commercially available TPN does not include cysteine as a significant nutrient. Cysteine has effectively become a safe and standard supplement to routine TPN in a few major hospitals in the U.S. The purpose of this study is to evaluate the ability of cysteine supplementation to increase glutathione production and concentrations in critically ill babies. Furthermore, the investigators want to evaluate whether cysteine supplementation results in less oxidative tissue injury and ultimately less severe illnesses. The study will enroll babies admitted to the UCLA Medical Center Neonatal Intensive Care Unit (NICU) and they will be chosen at random and in a blinded fashion to receive either cysteine or non-cysteine supplementation to their routine TPN. Small blood samples along with a single 6 hour infusion of a non-radioactive, stable isotope labeled amino acid will be used to measure the production of glutathione as well as other compounds in the blood to give a quantitative assessment to the severity of illness. Clinical information relevant to the babies' illness and subsequent recovery will be recorded. The results will be compared between cysteine vs. non-cysteine groups and before vs. after individual supplementation. By demonstrating the effect of cysteine supplementation on glutathione production, the incidence and/or severity of disease from oxidative injury in critically ill babies may be decreased if glutathione production is improved.

To evaluate the feasibility of performing a randomized pilot control trial of two diagnostic screening strategies for necrotizing enterocolitis in patients with congenital heart disease. Measures to evaluate will be the ability to obtain consent from patients, percentage of eligible patients that are able to be recruited, coordination of providers, estimation of degree of crossover and ability to perform the screening exams per protocol.

Pentoxifylline improves microcirculation and decreases TNF alpha levels associated with sepsis, rendering it of potential therapeutic value in necrotizing enterocolitis in premature neonates.

Since the first description of citrulline as a potential marker for intestinal function in 1998, its use has been investigated in a variety of disease processes including Short Bowel Syndrome, Celiac disease, chemotherapy and radiation induced intestinal injury, infections producing intestinal cytopathic effects like Adenovirus, and predicting rejection in intestinal transplantation. The use of citrulline levels as a diagnostic tool to predict gastrointestinal disease in the premature population has not been properly addressed. The introduction of enteral nutrition in the premature infant is a process of trial and error, knowing that the immaturity of the gastrointestinal system may lead to frequent episodes of feeding intolerance. This is augmented by the fear of the development of necrotizing enterocolitis (NEC) once feeds are commenced. NEC is a condition characterized by disruption of the intestinal epithelial barrier, a pathogenic process shared with some of the conditions mentioned above for which citrulline has proven clinically useful. A normal pattern of citrulline production has not been established in the premature population. Previous studies have shown decreased levels of glutamine and arginine in premature infants up to 10 days prior to the development of necrotizing enterocolitis. Glutamine and arginine are two amino acids closely involved in the synthesis and catabolism of citrulline. The investigators therefore hypothesize that defining a normal pattern of citrulline production in the premature population may prove to be a clinically useful diagnostic tool to screen for gastrointestinal disease.

The purpose of this study is to compare the additional use of gloves (with handwashing before and after gloving) for all patient contact while infants have intravenous (central or peripheral) access in a RCT. Preterm infants <1000 grams or less than 29 weeks gestational age will be randomized after birth to either a handwashing-gloving group or handwashing only group. The primary outcome will be the incidence of invasive infections (bacterial or fungal) or necrotizing enterocolitis. Secondary outcomes will include hospital days, preterm morbidities, mortality, and hospital costs.

The purpose of this study is to characterize the time to maturation of neutrophil extracellular trap(NET) formation capability in polymorphonuclear leukocytes(PMNs) isolated from newborn premature and term infants as well as infants <1 year of age undergoing elective surgery. This study will also determine whether NETs contribute to the pathogenesis of necrotizing enterocolitis (NEC). We hypothesize that NET formation contributes to the pathogenesis of NEC by inappropriately releasing degradative proteins and tissue destructive enzymes into the inflammatory milieu of the premature infant gastrointestinal tract following bacterial translocation. We also hypothesize that the delay in NEC development in premature infants (3rd - 4th week of life) as compared to at-risk term infants (1st week of life) results from a developmental delay in PMN ability to form NETs.

The purpose of this study is to determine whether antibiotics given immediately after birth alter the development of the developing preterm infant's microbiome, which may further alter overall clinical outcomes.