Pasteurization of Breastmilk Decreases the Rate of Postnatally Acquired Cytomegalovirus Infections, But Shows a Nonsignificant Trend to an Increased Rate of Necrotizing Enterocolitis in Very Preterm Infants—A Preliminary Study

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Abstract

This study assessed whether feeding preterm infants unpasteurized breastmilk (1) decreases the rate of late-onset sepsis and necrotizing enterocolitis and (2) increases the rate of postnatally acquired cytomegalovirus infections.

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Neurodevelopmental and growth impairment among extremely low-birth-weight infants with neonatal infection.

Barbara Stoll, Nellie I Hansen, Ira Adams-Chapman … (2004)

Neonatal infections are frequent complications of extremely low-birth-weight (ELBW) infants receiving intensive care. To determine if neonatal infections in ELBW infants are associated with increased risks of adverse neurodevelopmental and growth sequelae in early childhood. Infants weighing 401 to 1000 g at birth (born in 1993-2001) were enrolled in a prospectively collected very low-birth-weight registry at academic medical centers participating in the National Institute of Child Health and Human Development Neonatal Research Network. Neurodevelopmental and growth outcomes were assessed at a comprehensive follow-up visit at 18 to 22 months of corrected gestational age and compared by infection group. Eighty percent of survivors completed the follow-up visit and 6093 infants were studied. Registry data were used to classify infants by type of infection: uninfected (n = 2161), clinical infection alone (n = 1538), sepsis (n = 1922), sepsis and necrotizing enterocolitis (n = 279), or meningitis with or without sepsis (n = 193). Cognitive and neuromotor development, neurologic status, vision and hearing, and growth (weight, length, and head circumference) were assessed at follow-up. The majority of ELBW survivors (65%) had at least 1 infection during their hospitalization after birth. Compared with uninfected infants, those in each of the 4 infection groups were significantly more likely to have adverse neurodevelopmental outcomes at follow-up, including cerebral palsy (range of significant odds ratios [ORs], 1.4-1.7), low Bayley Scales of Infant Development II scores on the mental development index (ORs, 1.3-1.6) and psychomotor development index (ORs, 1.5-2.4), and vision impairment (ORs, 1.3-2.2). Infection in the neonatal period was also associated with impaired head growth, a known predictor of poor neurodevelopmental outcome. This large cohort study suggests that neonatal infections among ELBW infants are associated with poor neurodevelopmental and growth outcomes in early childhood. Additional studies are needed to elucidate the pathogenesis of brain injury in infants with infection so that novel interventions to improve these outcomes can be explored.

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Human milk for the premature infant.

Mark Underwood (2013)

Premature infants are at risk for growth failure, developmental delays, necrotizing enterocolitis, and late-onset sepsis. Human milk from women delivering prematurely has more protein and higher levels of bioactive molecules. Human milk must be fortified for premature infants to achieve adequate growth. Mother's own milk improves growth and neurodevelopment, decreases the risk of necrotizing enterocolitis and late-onset sepsis, and should be the primary enteral diet for premature infants. Donor milk is a resource for premature infants whose mothers are unable to provide an adequate supply of milk. Challenges include the need for pasteurization, nutritional and biochemical deficiencies, and limited supply. Copyright © 2013 Elsevier Inc. All rights reserved.

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Adverse neurodevelopment in preterm infants with postnatal sepsis or necrotizing enterocolitis is mediated by white matter abnormalities on magnetic resonance imaging at term.

Monica A. Daley, Terri E. Inder, Daniel M. Bear … (2008)

To test the hypothesis that the impact of postnatal sepsis/necrotizing enterocolitis (NEC) on neurodevelopment may be mediated by white matter abnormality (WMA), which can be demonstrated with magnetic resonance imaging (MRI). A prospective cohort of 192 unselected preterm infants (gestational age <30 weeks), who were evaluated for sepsis and NEC, underwent imaging at term-equivalent age and neurodevelopmental outcome at 2 years corrected age with the Bayley Scales of Infant Development. Sixty-eight preterm (35%) infants had 100 episodes of confirmed sepsis, and 9 (5%) infants had confirmed NEC. Coagulase-negative staphylococci accounted for 73% (73/100) of the episodes of confirmed sepsis. Infants with sepsis/NEC had significantly more WMA on MRI at term compared with infants in the no-sepsis/NEC group. They also had poorer psychomotor development that persisted after adjusting for potential confounders but which became nonsignificant after adjusting for WMA. Preterm infants with sepsis/NEC are at greater risk of motor impairment at 2 years, which appears to be mediated by WMA. These findings may assist in defining a neuroprotective target in preterm infants with sepsis/NEC.