View clinical trials related to Necrotizing Enterocolitis.
Filter by:The study will assess the efficacy of Docosahexaenoic Acid in reducing the incidence of necrotizing enterocolitis in premature infants.
Since 1987, red blood cell (RBC) transfusions have been proposed as a potential risk factor for necrotizing enterocolitis (NEC), which is one of the most severe gastrointestinal complications of prematurity. Evidence from Doppler studies have shown a post-transfusion impairment of mesenteric blood flow in response to feeds, whereas NIRS studies have reported transient changes of splanchnic oxygenation after RBC transfusion; a possible role for these findings in increasing the risk for TANEC development has been hypothesized. The aim of this study is to evaluate SrSO2 patterns in response to enteral feeding before and after transfusion.
Optimizing enteral nutrition (EN) is challenging in extremely preterm infants due to feeding intolerance that relates to the functional gastrointestinal immaturity. Early feeding is a safe way to promote postnatal gastrointestinal maturation and, when compared with delayed enteral feeding, provide benefit, such as reduced time to full enteral feedings (TFF) and number of parenteral nutrition (PN) days. Failure to develop oral feeding competence often leads to growth failure, longer hospital stays, dependence on PN and its complications, and influences long-term growth and developmental outcomes. Feeding with human breast milk has a protective effect against necrotizing enterocolitis (NEC) compared with formula, whereas feeding intolerance is one of the early signs of NEC. Delayed passage of meconium is a risk factor for feeding intolerance in preterm very low birth weight neonates and specific meconium microbiota characteristics have been linked to increased risk of NEC. This randomized controlled trial (RCT) aims at evaluating the effect of regular intestinal lavage using normal saline on the TFF and severe complications such as NEC and sepsis, in extremely preterm infants. Investigators aim also to follow children´s neurological development until 5,5 years of age. The study will include one intervention group of 100 subjects that will receive regular rectal washout with normal saline and equal number of control subjects, treated according to current routine. The trial is preliminarily estimated to last between year 2018 and 2022. Investigators will monitor closely for possible adverse events. The results are going to be published in reviewed medical journal.
Infections after elective intestinal surgery remain a significant burden for patients and for the health care system. The cost of treating a single surgical site infection is estimated at approximately $27,000. In adult patients, there is good evidence that the combination of oral antibiotics and mechanical bowel preparation is effective at reducing infections after intestinal surgery. In children, the body of evidence is much weaker. In this population, little evidence exists for oral antibiotics reducing infections and no data exists as to the effect of combining antibiotics with mechanical bowel preparation (such as polyethylene glycol (PEG)). The goal of the proposed study is to examine the effects of oral antibiotics with and without the combined use of mechanical bowel preparation on the rate of post-operative infectious complications in children aged 6 months to 18 years. This will be compared to the institution's current standard of care, which is to abstain from any type of mechanical bowel preparations or oral antibiotic administration before intestinal surgery.
This is a cross-sectional study to evaluate the utilities of a panel of biomarkers (Procalcitonin, Interleukin-6, Serum Amyloid A and Apolipoprotein C2) versus the gold standard blood culture result diagnosing late-onset neonatal sepsis (LONS) and/or necrotizing enterocolitis (NEC). Neonates who meet the initial screening criteria for suspected LONS or NEC will be recruited into the study. A group of 50 neonates who are clinically well, admitted to the nursery or general ward for reasons other than neonatal sepsis or NEC will also be recruited into the study.
This study evaluates the relationship between anemia and stool microbiota in premature infants. It also evaluates the relationship between blood transfusion and stool microbiota.
Patent ductus arteriosus (PDA) is a common problem in the neonatal intensive care unit and can be secondary to prematurity or congenital heart disease (CHD). PDA is the most common cardiovascular abnormality in preterm infants, and is seen in 55% of infants born at 28 weeks, and 1000 grams or less. In addition to producing heart failure and prolonged respiratory distress or ventilator dependence, PDA has been implicated in development of broncho-pulmonary dysplasia, interventricular hemorrhage, cerebral ischemia, and necrotizing enterocolitis (NEC). In an Israeli population study 5.6% of all very low birth weight infants (VLBW) were diagnosed with NEC, and 9.4% of VLBW infants with PDA were found to have NEC. In a retrospective analysis of neonates with CHD exposed to Prostaglandin E found that the odds of developing NEC increased in infants with single ventricle physiology, especially hypoplastic left heart syndrome. The proposed pathophysiological explanation of NEC and PDA is a result of "diastolic steal" where blood flows in reverse from the mesenteric arteries back into the aorta leading to compromised diastolic blood flow and intestinal hypo-perfusion. Prior studies have demonstrated that infants with a hemodynamically significant PDA have decreased diastolic flow velocity of the mesenteric and renal arteries when measured by Doppler ultrasound, and an attenuated intestinal blood flow response to feedings in the post prandial period compared to infants without PDA. Near Infrared Spectroscopy (NIRS) has also been used to assess regional oxygen saturations (rSO2) in tissues such as the brain, kidney and mesentery in premature infants with PDA. These studies demonstrated lower baseline oxygenation of these tissues in infants with hemodynamically significant PDA. These prior NIRS studies evaluated babies with a median gestational age at the time of study of 10 days or less. It is unknown if this alteration in saturations will persist in extubated neonates with PDA at 12 or more days of life on full enteral feedings. In the present study the investigators hypothesize that infants with a PDA, whether secondary to prematurity or ductal dependent CHD, will have decreased splanchnic and renal perfusion and rSO2 renal/splanchnic measurements will be decreased during times of increased metabolic demand such as enteral gavage feeding. To test this hypothesis the investigators have designed a prospective observational study utilizing NIRS to record regional saturations at baseline, during feedings, and after feedings for 48 hours.
Very preterm infants (<32 weeks gestation) with very low birth weight (VLBW, <1500 g) show immaturity of organs and have high nutrient requirements forgrowth and development. In the first weeks, they have difficulties tolerating enteral nutrition (EN) and are often given supplemental parenteral nutrition (PN). A fast transition to full EN is important to improve gut maturation and reduce the high risk of late-onset sepsis (LOS), related to their immature immunity in gut and blood. Conversely, too fast increase of EN predisposes to feeding intolerance and necrotizing enterocolitis (NEC). Further, human milk feeding is not sufficient to support nutrient requirements for growth of VLBW infants. Thus, it remains a difficult task to optimize EN transition, achieve adequate nutrient intake and growth, and minimize NEC and LOS in the postnatal period of VLBW infants. Mother´s own milk (MM) is considered the best source of EN for VLBW infants and pasteurized human donor milk (DM) is the second choice, if MM is absent or not sufficient. The recommended protein intake is 4-4.5 g/kg/d for VLBW infants, when the target is a postnatal growth similar to intrauterine growth rates. This amount of protein cannot be met by feeding only MM or DM. Thus, it is common practice to enrich human milk with human milk fortifiers (HMFs, based on ingredients used in infant formulas) to increase growth, bone mineralization and neurodevelopment, starting from 7-14 d after birth and 80-160 ml/kg feeding volume per day. Bovine colostrum (BC) is the first milk from cows after parturition and is rich in protein (80-150 g/L) and bioactive components. These components may improve gut maturation, NEC protection and nutrient assimilation, even across species. Studies in preterm pigs show that feeding BC alone, or DM fortified with BC, improves growth, gut maturation and NEC resistance during the first 1-2 weeks, relative to DM, or DM fortified with conventional HMFs.On this background, we hypothesize that BC, used as a fortifier for MM or DM, can induce similar growth and better NEC and LOS resistance, than conventional fortifiers. A pilot trial is required 1) to test the feasibility and initial safety of BC as a fortifier (e.g. similar growth rates and clinical variables as conventional fortification), 2) to calculate the sample size for a later, larger RCT with NEC +LOS as the primary outcome, and 3) record paraclinical outcomes associated with type of fortifier.
Pakistan has the third highest number of neonatal deaths worldwide. During the last two decades (1990-2013), neonatal mortality rate in the country has declined by only 1.0% per year. Severe infection is the second most leading cause of neonatal mortality, account for 28% of all deaths in Pakistan. Majority of neonatal deaths occur in infants who LBW (birth weight <2500g) and LBW comprises of both preterm / small for gestational age newborns. Breastfeeding helps protect infants from infections by serving as a source of nutrition uncontaminated by environmental pathogens. The protection is due to the multiple anti-infective, anti-inflammatory, and immuno regulatory factors transmitted through milk including secretory antibodies, glycan's, Lactoferrin, leukocytes, cytokines & other components produced by the mother's immune system. Reduction in neonatal infections and deaths is the aim of this study. The study is being conducted at the Aga Khan University in collaboration with University of Sydney.
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).