Human rhinovirus infections are common in children. Although historically associated with upper respiratory tract illness, rhinoviruses are increasingly recognized for their role in the exacerbation of asthma. Their role in bronchiolitis and severe lung disease in premature infants is unclear.

The authors of this study prospectively explore the role of rhinoviruses in premature infants using molecular techniques and identify these agents as the most frequent cause of hospitalization in this population. (Read the full article)

Several studies have focused on birth weight heritability, reporting results that range between 40% and 80%. Few studies have focused on the process of weight gain and were mainly based on heterogeneous samples of infants.

The present work looks at a uniform set of healthy preterm newborn twins. The resulting high heritability estimate could suggest using the inclusion criteria to identify genes that regulate postnatal weight gain or failure. (Read the full article)

Recommendations in pediatrics call for general developmental screening of young children; however, research suggests social-emotional development, in particular, is important as an initial indicator of general well-being versus risk, and may warrant inclusion in screening protocols.

Via a social-emotional screening program, significant percentages of children can be identified as being at risk for social-emotional problems, and colocation of an early childhood psychologist promotes the ability to effectively address young children’s social-emotional development within their medical home. (Read the full article)

Necrotizing enterocolitis (NEC) can present within the first week of life in term infants. In preterm infants, NEC usually appears after commencement of feeds and can occur between 2 and 3 weeks of life.

Among infants <33 weeks’ gestation, NEC appears to occur at mean age of 7 days in more mature infants, whereas onset of NEC is delayed to 32 days of age in smaller, lower gestational age infants. (Read the full article)

Nasal continuous positive airway pressure (NCPAP) is a noninvasive ventilatory support that may reduce the need for mechanical ventilation in preterm infants with respiratory distress syndrome. Heliox, a helium-oxygen mixture, has shown positive effects, especially in obstructive diseases.

NCPAP with heliox reduces the need for mechanical ventilation in preterm infants with respiratory distress syndrome in comparison with NCPAP with medical air. (Read the full article)

Previous observational studies and randomized trials have reported an association between the use of epidural analgesia for pain relief in labor and intrapartum maternal fever. Studies have also reported an increase in adverse neonatal outcomes with intrapartum maternal fever.

Among low-risk women receiving epidural analgesia, intrapartum maternal temperature >99.5°F was associated with adverse neonatal outcomes, with the rate of adverse outcomes increasing directly with maximum maternal temperature. Without temperature elevation, epidural use was not associated with adverse neonatal outcomes. (Read the full article)

Pulmonary hypertension is associated with bronchopulmonary dysplasia in extremely low birth weight infants and contributes to morbidity and mortality.

Pulmonary hypertension affects at least 1 in 6 extremely low birth weight infants and persists to discharge in most survivors. Routine screening of these infants with echocardiography at 4 weeks of age identifies only one-third of those affected. (Read the full article)

Although China has the largest birth population in the world and a number of multicenter studies of neonatal respiratory failure are reported, there is a paucity of data regarding outcome measurement of very premature neonates requiring respiratory care and surfactant therapy.

This study is the largest survey, to date, in a Chinese network of 55 NICUs that presents the incidence, morbidity, and mortality rates, with risk factors of neonatal respiratory failure, with special emphasis on surfactant-treated very immature infants. (Read the full article)

Delayed umbilical cord clamping in premature infants has been associated with decreased rates of intraventricular hemorrhage; however, the mechanisms that explain this finding have not been described.

Premature infants with delayed umbilical cord clamping have improved superior vena cava blood flow over the first days of life. This may provide one of the mechanism(s) by which this technique reduces the incidence in intraventricular hemorrhage in this at-risk population. (Read the full article)

The demographics of trials that use antenatal consent may not be representative of the populations that they are intended to study.

This study analyzes the difference in clinical outcomes between the enrolled and eligible but not enrolled populations of a trial that required antenatal consent. (Read the full article)

Approximately 1.1% to 5.9% of febrile infants aged <90 days have bacteremia, but the incidence of bacteremia in this age is unknown. Escherichia coli, group B Streptococcus, and Staphylococcus aureus are the leading causes of bacteremia.

Bacteremia occurs in 2.2% of infants who have a blood culture drawn. The incidence rate of true bacteremia was 0.57 in 1000 full-term births. The most common pathogens were Escherichia coli (56%), group B Streptococcus (21%), and Staphylococcus aureus (8%). (Read the full article)

Breastfeeding and oral sucrose have shown an analgesic effect in premature newborn infants for minor painful procedures. Studies suggest that the analgesic properties of breast milk are superior to oral sucrose in term neonates.

For premature infants from 32 to 37 weeks, there is no significant difference in analgesic effect between breast milk and oral sucrose. Breast milk is a safe and natural method for pain relief in late preterm infants. (Read the full article)

Numerous late preterm infants undergo repetitive heel lancing procedures during their first hours of life to evaluate glycemic control. Heel lances are painful and 25% glucose solution is effective on reducing procedural neonatal pain scores and crying behavior.

This noninferiority randomized controlled trial demonstrated that compared with breast milk, 25% glucose provided lower pain scores and reduced duration of cry. Further research is necessary to clarify breast milk’s mechanisms and efficacy on neonatal pain relief. (Read the full article)

Preterm infants are at increased risk of behavioral problems, which has been associated with maternal distress. Paternal psychological well-being is less studied. Parents’ concerns may affect their perceptions or attitudes and have negative effects on the behavior of the child.

Parents report more behavior problems in VLBW children at age 3 if they themselves have had symptoms of depression, parenting stress, or weak sense of coherence. Also, the paternal psychological well-being contributes to the behavioral development of a preterm child. (Read the full article)

Inhaled nitric oxide for premature infants has been evaluated in multiple studies; however, these trials differed in treatment initiation, duration of therapy, and inclusion criteria. Furthermore, these trials reached differing conclusions regarding the benefit of inhaled nitric oxide.

We used a large sample of infants from children’s hospitals and found that the use of inhaled nitric oxide in premature infants was variable even when controlling for demographic characteristics and disease. (Read the full article)

There is a perception among clinicians that methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and/or meningitis result in a greater burden of disease than invasive infections attributed to methicillin-susceptible Staphylococcus aureus (MSSA) among very low birth weight (VLBW) infants.

VLBW infants with MRSA and MSSA bacteremia and/or meningitis have equivalent morbidity and mortality. These findings suggest that allocation of resources for prevention and treatment of both MRSA and MSSA infections among VLBW infants should be comparable. (Read the full article)

The survival of extremely low birth weight infants in resource-limited situations is dismal due to limited neonatal intensive care facilities. Nasal continuous positive airway pressure resulted in an increased survival of these infants, but many still require back-up ventilation.

Nasal continuous positive airway pressure and intubation, surfactant, and extubation practiced in a neonatal high care ward with limited resources and limited back-up ventilatory facilities can improve the survival of extremely low birth weight infants. (Read the full article)

Although developmental care in NICUs reduces the stress experienced by preterm infants, the actual level of developmental care may vary and little is known about how the level of developmental care relates to preterm infants’ neurobehavioral performance.

The study demonstrates the relationship between variations in developmental care in NICUs and the neurobehavior of preterm infants. Infants from NICUs with high-quality developmental care compared with infants from units with low quality of care evidenced a better neurobehavioral profile. (Read the full article)

Preterm, growth-restricted infants are at high risk of necrotizing enterocolitis (NEC). NEC occurs most frequently in infants who have received enteral feeds. It is common practice to delay introduction of enteral feeds in these infants.

Early introduction of enteral feeds results in earlier achievement of full enteral feeding. Early feeding is not associated with a higher risk of NEC. Delayed feeding is associated with a higher risk of cholestasis. (Read the full article)

Infants weighing 501 to 1500 g are at high risk for mortality and for neonatal morbidities associated with both short- and long-term adverse consequences.

Mortality and major neonatal morbidity in survivors decreased for infants 501 to 1500 g between 2000 and 2009. However, in 2009, a high proportion of these infants still either died or survived after experiencing ≥1 major neonatal morbidity. (Read the full article)

Neonatal follow-up programs are designed in part to identify developmental delays among high-risk infants after NICU hospitalization and make referrals to state-funded early intervention. Early intervention has been shown to benefit children with developmental delays.

Many high-risk infants demonstrating developmental delays at neonatal follow-up programs are not referred to early intervention. Subspecialty clinics share responsibility with the medical home in referring children from birth through three years with developmental problems to early intervention services. (Read the full article)

Although soy protein–based infant formula is known to support physical growth equal to that of infants fed cow's milk–based formula, data are lacking on developmental status of infants fed soy formula compared with breast milk or milk formula.

Infants fed soy protein–based formula scored within normal limits on standardized developmental testing and did not differ from infants fed cow’s milk–based formula. Breastfed infants have a slight advantage on cognitive development compared with formula-fed infants. (Read the full article)

Although morbidity-free survival for preterm infants has remained constant in US NICUs when assessed collectively, morbidity-free survival differs among centers. Center-specific practices before, at, or after delivery might affect outcomes of the most premature infants.

Our findings suggest that the approach taken to infants at the limits of viability is associated with outcomes of more-mature infants. Identifying centers with higher survival and lower morbidity might lead to identification of key practices to improve morbidity-free survival. (Read the full article)

Preterm children born between 29 and 36 gestational weeks are at higher risk of developmental delay. The Ages and Stages Questionnaires (ASQ) have been recommended as a developmental screening tool.

At 12 months’ corrected age (CA), the ASQ was insufficient in identifying delays on both mental and psychomotor scales of the Bayley Scales of Infant Development but was accurate in detecting mental delay at CA of 24 months. (Read the full article)

Previous studies show beneficial effects of cycled lighting in neonatal care on infant day–night activity, sleep behavior, and postnatal growth. The American Academy of Pediatrics and the American College of Obstetricians and Gynecologists recommend neonatal care under cycled lighting conditions.

This study found that cycled lighting during neonatal care reduces infant’s fussing and crying behavior at 5 and 11 weeks’ corrected age and improves growth during neonatal period. These findings support the introduction of cycled lighting in neonatal care practice. (Read the full article)

Death or neurodevelopmental impairment in extremely premature neonates can be predicted at birth by considering gender, antenatal steroids, multiple birth, birth weight, and gestational age.

Prediction of death or neurodevelopmental impairment in extremely premature infants is improved by using information available later during the clinical course. The importance of birth weight declines, whereas that of respiratory illness severity increases with advancing postnatal age. (Read the full article)

Febrile infants in the first 90 days may have life-threatening serious bacterial infection. Well-appearing febrile infants with serious bacterial infections cannot be distinguished from those without by examination alone. Variation in care resulting in both undertreatment and overtreatment is common.

The systemwide implementation of an evidence-based care process model for the care of febrile infants in Intermountain Healthcare was associated with increased delivery of evidence-based care, improved infant outcomes, and lower costs. This model adopted nationally can improve value. (Read the full article)

There is no literature on the concentrations of vitamin B₆ vitamers in cerebrospinal fluid of preterm and term newborn infants. This knowledge, however, is highly important, because vitamin B₆ plays a pivotal role in brain development and functioning.

In cerebrospinal fluid of newborn infants, B₆ vitamer concentrations are strongly dependent on postmenstrual age, indicating that vitamin B₆ homeostasis in brain differs between preterm and term newborns. This has implications for the evaluation of epilepsy and vitamin B₆ deficiency. (Read the full article)

Data suggest that delivery at high-volume, high-technology hospitals reduces neonatal mortality. No study has examined other complications or compared the effects in multiple states by using a study design to control for unmeasured differences in case mix.

The survival benefit to delivering at a high-level NICU between 1995 and 2005 is larger than previously reported and varies between states. The survival benefits affect both extremely and moderately preterm infants. Complication rates were similar between hospital types. (Read the full article)

Sudden infant death syndrome remains the major cause of postneonatal death in developed countries. Although infant-parent bed-sharing following antenatal smoking or maternal consumption of alcohol on the bed-sharing night increases the risk of death, the mechanism is not known.

Bed-sharing infants experienced more oxygen desaturations and episodes of carbon dioxide rebreathing than cot-sleeping infants but showed appropriate behavioral and physiologic responses. A deficit in these responses in vulnerable infants could link to increased risk of sudden infant death syndrome. (Read the full article)

Cholestasis predisposes to the development of fat-soluble vitamin (FSV) deficiency. D-α tocopheryl polyethylene glycol-1000 succinate and coadministered FSVs are absorbed in spite of cholestasis.

Infants with biliary atresia with total bilirubin >2 mg/dL are at risk for fat-soluble vitamin (FSV) deficiency. A multivitamin preparation containing d-α tocopheryl polyethylene glycol-1000 succinate alone is not effective in treating biochemical FSV insufficiency in cholestatic infants. (Read the full article)

Previous studies suggest that abnormal findings on conventional EEG during the neonatal period are associated with death or severe brain injury in preterm infants. However, large cohort studies on preterm EEG for predicting later neurodevelopmental outcome remain scarce.

This study demonstrates precise prognostic values of conventional EEG for predicting neurodevelopmental outcome in the current perinatal care setting. Additionally, its prognostic values are independent of severe injury on neuroimaging and clinical risk factors. (Read the full article)

Declining dietary omega 3 polyunsaturated fatty acids has been associated with rising allergy prevalence and fish oil is therefore of interest in allergy prevention. Supplementation during pregnancy, but not after the age of 6 months, has achieved some allergy reductions.

We assessed the effect of fish oil supplementation from birth to 6 months, which has not been investigated previously. Our results, together with previous findings, will likely help define a "window of opportunity" for allergy intervention using fish oil supplements. (Read the full article)

Mortality of very low birth weight infants varies widely between regions and countries; however, the variation in morbidities after adjusting for confounders has not been adequately studied.

Composite outcome of mortality or short-term morbidity for very low birth weight infants was lower in Japan than in Canada. However, marked variations in mortality and individual morbidity exist, revealing areas for improvement in each country. (Read the full article)

Current human milk fortifiers fail to provide the higher protein intake that is now recommended for feeding human milk–fed infants. There is a desire to avoid the use of powdered products when feeding these infants.

A new ultraconcentrated liquid human milk fortifier that provides more protein than current powdered fortifiers is safe and supports better growth in human milk–fed infants than a powdered fortifier. (Read the full article)

The Apgar score is a convenient method to rapidly assess the clinical status of the newborn infant. Recent literature suggests Apgar scores vary widely in preterm infants.

The Apgar signs for respiratory effort, grimace, and muscle tone demonstrated considerable disagreement in preterm infants ≤28 weeks’ gestation. Disagreement exists despite the level of respiratory intervention, continuous positive airway pressure, or intubation, and is likely independent of gestational age. (Read the full article)

Most studies on corticoid treatment of respiratory syncytial virus (RSV) respiratory diseases have revealed no beneficial effect. The mechanism by which RSV respiratory-infected patients are insensitive to the antiinflammatory effect of corticosteroids is unknown.

This study helps to understand how a respiratory syncytial viral infection may alter the normal antiinflammatory response to cortisol and the insensitivity to glucocorticoid treatment. The increase expression of β glucocorticoid receptor could be a marker of disease severity. (Read the full article)

Despite numerous preventive strategies including prophylaxis with 400 IU/day of vitamin D in recent years, the deficiency of vitamin D in infants is still a global health problem.

This study reveals that the risk of vitamin D deficiency is high in exclusively breastfed infants, especially in winter, despite vitamin D supplementation. Therefore, it is suggested that an adjustment of vitamin D dosage for seasonal variation might be necessary. (Read the full article)

Children born late preterm (34–36 weeks’ gestation) are at increased risk of adverse early childhood outcomes compared with term-born children. The impact of the neonatal experience on longer-term outcomes of these infants has not yet been well considered.

This study provides information regarding the development of late preterm infants at 3 years. Late preterm infants who received neonatal intensive or high-dependency care had similar developmental outcomes to children born late preterm who did not receive this care. (Read the full article)

Retinal hemorrhages occur in accidental and inflicted traumatic brain injury (ITBI) and some medical encephalopathies. Large numbers and peripherally located retinal hemorrhages are frequently cited as distinguishing features of ITBI in infants, but the predictive value has not been established.

This prospective retinal imaging study found that a diagnosis of ITBI in infants and children can be distinguished from other traumatic and nontraumatic causes by the presence of >25 dot-blot (intraretinal layer) hemorrhages (positive predictive value = 93%). (Read the full article)

Invasive Cronobacter infection is a rare but devastating disease known to affect hospitalized premature or immunocompromised infants fed powdered infant formulas (PIFs). PIF labels imply that powdered formulas are safe for healthy, term infants if the label instructions are followed.

Cronobacter can also infect healthy, term infants in the first months of life, even if PIF label instructions are followed. Invasive Cronobacter infection is extremely rare in exclusively breastfed infants or those fed commercially sterile, ready-to-feed formulas. (Read the full article)

Several meta-analyses evaluating probiotics in preterm infants suggest a beneficial effect for the prevention of necrotizing enterocolitis and death, but less for nosocomial infection. Lactobacillus reuteri may reduce these outcomes because of its immunomodulation and bactericidal properties.

Although L reuteri did not appear to decrease the rate of death or nosocomial infection, the trends suggest a protective role consistent with the literature. Feeding intolerance and duration of hospitalization were significantly decreased in premature infants ≤1500 g. (Read the full article)

Nasal continuous positive airway pressure (NCPAP) is commonly given to premature infants with nasal prongs and nasal masks. Prongs and masks appear to injure the nose of preterm infants with equal frequency.

Nasal masks are more effective than nasal prongs for preventing intubation and mechanical ventilation in premature infants within 72 hours of starting NCPAP. (Read the full article)

Postnatal growth restriction of preterm infants is a universal problem. Early "catch-up growth" has been associated with development of metabolic syndrome. In addition, preterm infants appear to be at major risk for developing increased adiposity and insulin resistance.

The consumption of a nutrient-enriched formula after hospital discharge may be beneficial in adequate for gestational age infants both in terms of head circumference growth and fat-free mass gain. (Read the full article)

Randomized controlled trials of early developmental interventions for very preterm infants demonstrate short-term benefits for infant neurobehavioral functioning. The longer-term benefits of these interventions for children and their families are not yet clear.

This randomized trial shows that home-based preventive care over the first year of life for very preterm infants has selective long-term benefits. Caregivers report less anxiety and fewer were at risk for an anxiety disorder. Preschoolers show fewer internalizing behaviors. (Read the full article)

Patients living in rural versus urban counties encounter different health care environments. Whether these differences result in different health care utilization for rural versus urban infants is not known.

In this study, infants living in rural California counties were hospitalized less often than infants living in urban counties. Among those hospitalized, infants living in rural counties were hospitalized for fewer cumulative days than infants residing in urban counties. (Read the full article)

It has been widely thought for the past 20 years that recurrent low blood glucose levels ≤2.5 mmol/L (45 mg/dL), even in the absence of any suggestive clinical signs, can harm a preterm infant’s long-term development.

This prospective study showed the outcome at 2 and 15 years later for the preterm infants who had a blood glucose level this low in the first 10 days of life did not differ from that of matched controls. (Read the full article)

Stressful events adversely affect the immune system, particularly the natural killer (NK) cells. Infants in the NICUs are exposed to stressful stimuli. The effect of massage therapy on the immune system of preterm infants has not been investigated.

This randomized placebo-controlled study found daily massage performed in stable preterm infants for a minimum of 5 days was associated with an increase in NK cell cytotoxicity despite lower absolute NK cell numbers compared with controls. (Read the full article)

Osteopathy of prematurity continues to occur in preterm infants. Osteopathy of prematurity can cause rib fractures in ex-preterm infants.

Rib fractures in ex-preterm infants are often posterior and multiple. Posterior rib fractures may not be diagnostic of nonaccidental injury in ex-preterm infants. (Read the full article)

Delayed meconium passage impairs gastrointestinal function in premature infants. No intervention has been identified that accelerates meconium passage sufficiently. Gastrografin is an osmotic contrast agent used for radiologic examination of the bowel or for conservative treatment of uncomplicated meconium ileus.

Gastrografin did not accelerate complete meconium evacuation but stimulated gastrointestinal motility in a randomized, placebo-controlled trial in premature infants. Application shortened the time to full enteral feedings and hospital stay but was associated with necrotizing enterocolitis as a possible adverse event. (Read the full article)