Pneumonia is still a significant problem in young children from developing countries where zinc deficiency is prevalent. Although zinc supplementation reduces the risk of childhood pneumonia, the effect of adjunct zinc on severe pneumonia is unclear with conflicting results.

The overall effect, if any, of zinc as adjuvant therapy for World Health Organization–defined severe pneumonia in young children is small. (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)

Infants born to women who are hepatitis B surface antigen–positive have a 90% risk of chronic hepatitis B virus infection, which may cause premature death from liver failure or cancer. Postexposure prophylaxis in infancy prevents 85% to 95% of perinatal infections.

The Perinatal Hepatitis B Prevention Program was created to identify and manage infants born to women who are hepatitis B surface antigen–positive. We provide, for the first time since 1996, national-level data on the outcomes of the Perinatal Hepatitis B Prevention Program. (Read the full article)

Healthcare Effectiveness Data and Information Set (HEDIS) measures are widely used to assess the reliability of pediatric immunization delivery. The extent to which these measures provide accurate ("is this child up-to-date on immunizations?") and useful ("is this child due for catch-up immunizations?") information is unclear.

Overall, HEDIS childhood immunization measures are accurate and useful. Users of HEDIS data should be aware, however, that certain immunizations (eg, hepatitis B, pneumococcal conjugate) and children (eg, those with a single overdue immunization) are more prone to HEDIS misclassification. (Read the full article)

Emergency contraception is a safe and effective method of pregnancy prevention after unprotected intercourse.

Pharmacies commonly communicate misinformation, both to adolescents and to physicians, concerning who is able to access emergency contraception and through what means. (Read the full article)

Although all residents progressively assume responsibility for clinical skills under the teaching and supervision of attending physicians, senior residents also assume responsibility for teaching and supervising. This leads to a dynamic negotiation of responsibilities, particularly on clinical work rounds.

A better understanding of how attending physicians and senior residents negotiate shared responsibilities for teaching and supervising, and the context in which this negotiation occurs, may clarify assumptions and set expectations for resident training. (Read the full article)

Trisomy 13 and trisomy 18, common chromosomal abnormalities, are generally considered fatal within the first year after birth, although some children live longer. Little is known, however, about the inpatient medical courses of these infants and children.

Evaluation of nationally representative hospitalization data demonstrates that a significant number of children with trisomy 13 and trisomy 18 live beyond 1 year of age and that the care they receive includes both medical and surgical treatments. (Read the full article)

Diabetes during pregnancy has been associated with general development impairments in offspring; however, associations between autism and maternal diabetes have been inconsistent. Few studies have examined related conditions accompanied by underlying increased insulin resistance and their association with developmental outcomes.

This population-based study in young children provides evidence that maternal metabolic conditions are a risk factor for autism, developmental delay without autistic symptoms, and impairments in several domains of development, particularly expressive language, after adjusting for sociodemographic and other characteristics. (Read the full article)

Estimates of youth participation in strangulation activity, commonly referred to as the "choking game," range from 5% to 11%. Previous studies have documented correlations between youth choking game participation and health risks such as substance use and mental health issues.

Among Oregon eighth-graders surveyed, >6% had ever participated in the choking game. Participation was linked to poor nutrition and gambling among females, exposure to violence among males, and sexual activity and substance use among both genders. (Read the full article)

We know that many evidence-based treatments for acute asthma are underused, and adherence with treatment guidelines is poor; however, studies have focused on β₂ agonists and corticosteroids, but little is known about intravenous magnesium, which has substantial evidence of benefit.

Magnesium is used infrequently in Canadian pediatric emergency departments in hospitalized children with acute asthma, with variation across sites. More than half of this population does not receive frequent bronchodilators and timely corticosteroids. (Read the full article)

Batteries, especially button batteries, are an important source of pediatric injury. Recent reports suggest that fatal and severe button battery ingestions are increasing.

An estimated 3289 battery-related ED visits occurred annually among US children <18 years of age, averaging 1 visit approximately every 3 hours. The number and rate of visits increased significantly during the 20-year study period, driven by increases during the last 8 study years. (Read the full article)

Some researchers have suggested that individuals with Down syndrome (DS) are protected from atherosclerotic disease; however, recent data from 2 large cohort studies of individuals with DS are significant for increased mortality from ischemic heart disease and cerebrovascular disease.

This study compares lipid profiles among children with DS and their siblings, highlighting the presence of a less favorable lipid profile in this high-risk population. (Read the full article)

Previous research on injuries related to bottle, pacifier, and sippy cup use has largely focused on case reports of infant injuries or fatalities attributed to pacifiers or pacifier parts causing asphyxiation or to bottle warming causing burns.

This study is the first to use a nationally representative sample to investigate the range of injuries requiring emergency department visits associated with bottles, pacifiers, and sippy cups among children aged <3 years. (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)

New, effective approaches to obesity prevention are urgently needed. Social network interventions warrant our attention. Social networks play a significant role in adult and adolescent obesity. The role of social networks in pediatric obesity has not been examined.

Afterschool friendship ties play a critical role in setting physical activity patterns in children as young as 5 to 12 years. Children’s activity levels can be changed by the activity level of their social network during a 12-week afterschool program. (Read the full article)

Numerous studies report disparate use of dental services among poor children. National estimates vary based on the data source, and little is known about how age, race, and health plan affect use of dental services among Medicaid-enrolled children.

Based on of Medicaid claims, dental services improved since 2002 but varied substantially by state, age, and type of insurance. Children entering school had the highest prevalence of care as did children in primary care case management and health maintenance organizations. (Read the full article)

Although obesity is correlated with levels of systolic and diastolic blood pressure, there is little evidence if the increases in obesity over the last 40 years have resulted in increased blood pressure levels.

Despite increases in obesity in Bogalusa, Louisiana between 1974 and 1993, there was no increase in systolic or diastolic blood pressure levels. It should not be assumed that trends in high blood pressure have paralleled those for obesity. (Read the full article)

The causes of Perthes disease are unknown. There is considerable evidence that the disease has a vascular mechanism, although the nature of this is unknown. There is some suggestion that affected individuals may have a heightened cardiovascular risk in adulthood.

Children with Perthes disease have reduced vascular caliber, which is independent of body height, and abnormal functional vascular measures. These findings may be important in the mechanism of disease and may have implications on long-term vascular morbidity. (Read the full article)

In 2011, the Accreditation Council on Graduate Medical Education increased restrictions on resident duty-hours. Further changes have been considered, including greater work-hour restrictions and lengthening residency. Residents’ views about these policies are unclear.

This is the first systematic, national inquiry into resident opinions on reduced work-hours and longer residency. More pediatric residents support than oppose reduced hours, and a minority would add a year to residency to achieve them. (Read the full article)

Fetal factors that predispose infants to necrotizing enterocolitis (NEC) have been extensively studied. Maternal factors that may affect future risk for NEC are less clear.

We hypothesized that maternal factors were the primary cause of NEC. Through a case-control design we determined that maternal smoking predisposes infants to the development of NEC. Our results highlight the importance of smoking cessation in pregnancy. (Read the full article)

Infant malnutrition is known to be associated with behavioral and cognitive impairment throughout childhood, adolescence, and young adulthood. However, controlled studies addressing adult outcomes in middle life, including earning potential, educational attainment, and standard of living, are limited.

A discrete episode of moderate to severe malnutrition in infancy, with good rehabilitation thereafter, is associated with lower adult social status and a widening income gap relative to healthy controls, partially attributable to cognitive impairment in the previously malnourished. (Read the full article)

Preterm infants from 33 gestational weeks can detect specific shape features (prism and cylinder) by touch (without visual control), and remember them; however, nothing is known about such abilities earlier in development.

The preterm infant, even when very immature (from 28 gestational weeks), is endowed with tactile sensory abilities: the exploration and memorization of an object by touch, the discrimination of a novel object, and the recognition of a familiar object after interference. (Read the full article)

Childhood abuse has been associated with obesity risk in adulthood. Little is known regarding the impact of abuse severity on risk, potential mechanisms are poorly understood, and few studies have been conducted among minority populations.

Severity of child/teenager physical and sexual abuse is associated with increased risk for adult obesity and/or central adiposity in adulthood. These are the first such findings in a large cohort of US black women. (Read the full article)

Respiratory infectious symptoms are common during the first year of life. Day care attendance, older siblings, and lack of breastfeeding have been considered as possible factors influencing early respiratory tract infections.

Children with early dog contacts seem to have fewer infectious respiratory symptoms and diseases, especially otitis, during the first year of life. (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)

A dose-response relationship exists between light irradiance and decrease of total serum bilirubin concentration (TsB) at relatively low irradiances. It has been questioned whether by increasing irradiance a "saturation point" exists, above which no further decrease of TsB is seen.

We found a linear relation between light irradiance in the range of 20 to 55 μW/cm²/nm and decrease in TsB after 24 hours of therapy, with no evidence of a saturation point. (Read the full article)

Macromastia is associated with severe physical and emotional symptoms and negatively impacts health-related quality of life in adult women. Reduction mammaplasty is the most effective treatment for adults. Little is known regarding the impact of macromastia during adolescence.

Adolescents with macromastia have impaired health-related quality of life, lower self-esteem, more breast-related symptoms, and are at higher risk for disordered eating in comparison with their peers. These negative health outcomes have implications for early intervention in this patient population. (Read the full article)

Children without any underlying medical condition who walk on their toes are referred to as idiopathic toe-walkers. The prevalence and early course of idiopathic toe-walking are unknown.

This study establishes the prevalence and early spontaneous course of idiopathic toe-walking in a large, well-defined cohort of 5.5-year-old children. (Read the full article)

Trisomy 13 and 18 are conditions with 1-year survival rates of less than 10% and have traditionally been treated with palliative care. There are increasing reports of ethical dilemmas caused by parental requests for clinical interventions.

Parents who belong to social networks report an enriching family experience and describe surviving children as happy. Many of these parents describe challenging encounters with health care providers. (Read the full article)

Because most childhood tuberculosis cases are sputum smear-negative, diagnosis relies largely upon clinical presentation, tuberculin skin testing, and chest radiograph. Diagnostic limitations contribute to treatment delays and high mortality. However, childhood tuberculosis (TB) mortality risk factors are not well documented.

This study demonstrates that false-negative TST is common in children with active TB and is associated with increased risk of death. A negative TST should not delay anti-TB therapy. Improved diagnostic modalities are urgently needed in resource-limited settings. (Read the full article)

The American Academy of Pediatrics prioritized detection of mental illness in children presenting to emergency departments (ED) by using standardized clinical tools. Only a minority of ED physicians indicate that they use evidence-based screening methods to assess mental health concerns.

This study presents the psychometrics of the HEADS ED (home, education, activities/peers, drugs/alcohol, suicidality, emotions/behavior, discharge resources), a brief, standardized screening tool for pediatric EDs. This tool ensures key information is obtained for decision-making, determining acuity level, and areas of need. (Read the full article)

To date, 4 small to moderate sized studies have revealed conflicting results on the clinically important question whether thrombocytopenia contributes to persistent patent ductus arteriosus (PDA) in very immature, preterm infants.

Thrombocytopenia in the first 24 hours after birth was not associated with the incidence of PDA at postnatal day of life 4 to 5 in a large cohort of preterm infants with <1500 g birth weight. Platelet dysfunction, rather than platelet number, might play a role in ductus arteriosus patency. (Read the full article)

Vitamin D is a pleiotropic hormone important for proper functioning of multiple organs. Adult critical care studies have suggested vitamin D as a modifiable risk factor. No studies have investigated the prevalence, risk factors, or role in pediatric critical illness.

This study provides evidence that the majority of critically ill children have vitamin D deficiency at the time of PICU admission, and that lower levels are associated with hypocalcemia, catecholamine administration, significant fluid bolus requirements, and longer PICU admissions. (Read the full article)

Although observational studies have consistently reported an association between media use and child sleep problems, it is unclear whether the relationship is causal or if an intervention targeting healthy media use can improve sleep in preschool-aged children.

This study demonstrates that a healthy media use intervention can improve child sleep outcomes and adds evidence that the relationship between media and sleep in preschool-aged children is indeed causal in nature. (Read the full article)

Childhood obesity occurs in 20% of children before they enter kindergarten. Treatment is difficult, making prevention desirable, but little is known about effective methods using anticipatory guidance to prevent obesity in pediatric primary care.

This study provides a comparison of 2 approaches versus usual care using anticipatory guidance to improve infant feeding during the first year of life, and demonstrates positive specific feeding behavior differences at 1 year in the intervention groups. (Read the full article)

There is evidence from both developed and developing countries that antiretroviral treatment significantly reduces mortality in HIV-infected children. However, in sub-Saharan Africa, numerous health system, financial, and human resource obstacles make delivering quality pediatric HIV care a challenge.

We describe the experience of the Baylor International Pediatrics AIDS Initiative in Malawi, Lesotho, and Swaziland. Despite challenges delivering pediatric treatment in these countries, mortality and clinical outcomes approaching those from developed countries are feasible. (Read the full article)

3,4-Methylenedioxymetham-phetamine (MDMA, ecstasy) is a widely used recreational drug affecting the serotonergic system. Preclinical studies indicate learning/memory problems with fetal exposure. Human infant prenatal exposure was related to alterations in gender ratio and poorer motor development at 4 months.

This is the first study documenting that heavier prenatal 3,4-methylenedioxymethamphetamine exposure predicts poorer infant mental and motor development at 12 months with significant, persistent neurotoxic effects. Language and emotional regulation were unaffected. (Read the full article)

The outcome of status epilepticus in children depends on the etiology. In otherwise normal children who have ≥1 episodes of unprovoked status epilepticus as part of the evolution of their epilepsy, the seizure and intellectual outcome is unclear.

Based on population-based data and 20 to 30 years’ follow-up of normal children with focal epilepsy, one-third with status epilepticus had recurrence of status. Reassuringly, intelligence, seizure control, and rate of remission were not altered compared with those without status epilepticus. (Read the full article)

Immature animals exposed to anesthetics display apoptotic neurodegeneration and long-term cognitive deficiencies. In children, studies of cognitive deficits associated with anesthesia exposure have yielded mixed results. No studies to date have used directly administered neuropsychological assessments as outcome measures.

This study examines the association between exposure to anesthesia in children under age 3 and deficits at age 10 by using a battery of directly administered neuropsychological assessments, with deficits found in language and abstract reasoning associated with exposure. (Read the full article)

Asthma is a major reason for pediatric hospital admission. The Joint Commission requires freestanding children’s hospitals to report compliance with 3 Children’s Asthma Care quality measures. High compliance with these measures should result in decreased admissions and emergency department visits.

Implementation of a standardized care process model for hospitalized asthmatic children resulted in high compliance with all 3 measures. Measures 1 and 2 did not provide an opportunity for improvement. Compliance with measure 3 resulted in significant decreases in readmission. (Read the full article)

The higher the predischarge bilirubin percentile reading on the hour of life–specific nomogram, the higher becomes that infant's risk of developing significant hyperbilirubinemia. Neonates in the low-risk zones (≤75th percentile) have a low risk of developing hyperbilirubinemia.

Thirty-two percent of newborns readmitted for hyperbilirubinemia had low-risk zone predischarge bilirubin percentile values, predominantly in the intermediate low-risk zone (41st–75th percentile). The intermediate low-risk zone may not be as low risk as previously thought. (Read the full article)

The 2009 influenza A (H1N1) pandemic caused illness in all age groups, but children were disproportionately affected. Children with underlying neurologic disorders were at high risk of influenza-related complications, including death.

This study provides the first detailed description of underlying neurologic disorders among children who died of influenza A (H1N1)pdm09 virus infection. (Read the full article)

Pyloric stenosis is the most common condition requiring surgery in infants. It is typically not present at birth but develops within the first weeks after birth. The etiology is largely unknown, but bottle-feeding has been suggested as a risk factor.

This study demonstrated that bottle-fed infants had a 4.6-fold increased risk of developing pyloric stenosis compared with infants who were not bottle-fed. The result adds to the evidence supporting the advantage of exclusive breastfeeding in the first months after birth. (Read the full article)

Critics argue that pediatric research without the potential for clinical benefit treats children as mere means to benefit others. Yet, there are no data to assess whether adolescents who participate in research, or their parents, agree with this view.

Respondents felt that by participating in research the adolescents were making important contributions to help others, and the adolescents felt proud to be doing so. These findings support the view that nonbeneficial pediatric research involves a type of charitable activity. (Read the full article)

Pediatric osteoarticular infections can be treated with successful microbiologic and clinical outcomes with a transition from parenteral to oral therapy. The best way to determine the timing of this transition is neither well studied nor standardized.

A total of 193 (99.5%) of 194 pediatric patients with acute bacterial osteoarticular infections were successfully transitioned to oral therapy, determined by using a combination of clinical findings and C-reactive protein levels, representing the largest single-center data set analyzed. (Read the full article)

The American Academy of Pediatrics and National Heart, Lung, and Blood Institute recommend routine blood pressure measurement in children. Little is known about the frequency with which blood pressure is currently measured in ambulatory pediatric settings in the United States.

Between 2000 and 2009, providers measured blood pressure during only one-third of ambulatory pediatric visits and two-thirds of pediatric preventive visits. The current rate of screening is especially low for children aged 3 to 7 years. (Read the full article)

Expedited partner therapy (EPT) is an effective method of partner treatment of sexually transmitted infections but is not used frequently. There are limited data on provider knowledge, practices, and comfort with EPT use in adolescents.

California pediatric residents have knowledge gaps and discomfort providing EPT and presence of an adolescent medicine fellowship is associated with increased EPT knowledge, use, and comfort among residents. Our findings support the need to improve EPT education in pediatric residencies. (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)

National data from child protective services agencies have shown a 55% decrease in the incidence of substantiated cases of physical abuse from 1992 to 2009, but no study has tracked the occurrence of serious injuries due to physical abuse.

Using national data from hospitalized children, we found a statistically significant increase in the incidence of serious injuries due to physical abuse from 1997 to 2009. These results are in sharp contrast to data from child protective services. (Read the full article)

There are limited data regarding the current status of the pediatric clinical trial enterprise.

Evaluation of the ClinicalTrials.gov data set allows description of the overall portfolio of clinical trials relevant to US children, which was previously not possible. (Read the full article)