Seven great achievements in pediatric research in the past 40 y

Surfactant delivery by aerosol inhalation - past, present, and future

Surfactant replacement therapy (SRT) by nebulization to spontaneously breathing patients has been regarded as the Holy Grail since surfactant deficiency was first identified as the cause for neonatal respiratory distress syndrome. It avoids neonatal endotracheal intubation, a procedure that is often difficult and occasionally harmful. Unapproved alternatives to endotracheal tube placement for liquid surfactant instillation, such as LISA (thin catheter intubation) and SALSA (supraglottic airway insertion) have significant merit but are still invasive, leaving nebulized SRT as the only truly non-invasive method. In the past 60 years, we have learned much about the potential - and limitations - of nebulized SRT. In this review, we examine the promises and pitfalls of nebulized SRT, discuss what we know about neonatal aerosol drug delivery and recap some of the most recent randomized clinical trials of nebulized SRT. We conclude with a discussion of what is known and the next steps needed if this type of SRT is to become a regular part of clinical care.

Translating the Biology of Adversity and Resilience Into New Measures for Pediatric Practice

As the science of adversity and resilience advances, and public awareness of the health consequences of stress grows, primary care providers are being increasingly asked to address the effects of adverse experiences on child wellbeing. Given limited tools for assessing these effects early in life, the authors explore how enhanced capacity to measure stress activation directly in young children could transform the role and scope of pediatric practice. When employed within a trusted relationship between caregivers and clinicians, selective use of biological measures of stress responses would help address the documented limitations of rating scales of adverse childhood experiences as a primary indicator of individual risk and strengthen the ability to focus on variation in intervention needs, assess their effectiveness, and guide ongoing management. The authors provide an overview of the potential benefits and risks of such expanded measurement capacity, as well as an introduction to candidate indicators that might be employed in an office setting. The ultimate value of such measures for both pediatricians and parents will require vigilant attention to the ethical responsibilities of assuring their correct interpretation and minimizing the harm of inappropriate labeling, especially for children and families experiencing the hardships and threats of racism, poverty, and other structural inequities. Whereas much work remains to be done to advance measurement development and ensure its equitable use, the potential of validated markers of stress activation and resilience to strengthen the impact of primary health care on the lives of young children facing significant adversity demands increased attention.

Leveraging the Biology of Adversity and Resilience to Transform Pediatric Practice

Advances in science are fundamentally changing the way we understand how inextricable interactions among genetic predispositions, physical and social environments, and developmental timing influence early childhood development and the foundations of health and how significant early adversity can lead to a lifetime of chronic health impairments. This article and companion article illustrate the extent to which differential outcomes are shaped by ongoing interactive adaptations to context that begin at or even before conception and continue throughout life, with increasing evidence pointing to the importance of the prenatal period and early infancy for the developing brain, the immune system, and metabolic regulation. Although new discoveries in the basic sciences are transforming tertiary medical care and producing breakthrough outcomes in treating disease, this knowledge is not being leveraged effectively to inform new approaches to promoting whole-child development and preventing illness. The opportunity for pediatrics to serve as the leading edge of science-based innovation across the early childhood ecosystem has never been more compelling. In this article, we present a framework for leveraging the frontiers of scientific discovery to inform new strategies in pediatric practice and advocacy to protect all developing biological systems from the disruptive effects of excessive early adversity beyond providing information on child development for parents and enriched learning experiences for young children.

Maternal intentions towards infant sleeping practices in Ireland

AIM

Mortality from Sudden Infant Death Syndrome (SIDS) has reduced by 50%-85% globally. Despite improvements from 1990 to 2009, the Irish SIDS rate has plateaued. Reasons for this are unclear, but may be related to a reduced parental SIDS awareness. Our study aimed to assess intentions regarding infant sleeping practices in mothers in Ireland.

METHODS

A cross-sectional survey of post-partum mothers was performed in the Rotunda Hospital over a four month period. Mothers with a history of SIDS, miscarriage or neonatal admissions were excluded.

RESULTS

Of 451 participants, unsafe sleeping positions were intended by 15.4%, reduced by Irish ethnicity [AOR = 0.52, 95% CI = 0.277-0.959, P = .036]. Safe sleep locations were intended by 66%, increased by Irish ethnicity [AOR = 2.6, 95% CI = 1.617-4.191, P < .001], and reduced by young maternal age [AOR = 0.15, 95% CI = 0.03-0.713, P = .02]. Maternal smoking was more likely in mothers with lower educational level [AOR = 3.51, 95% CI = 1.169-10.56, P = .03]. Soft bedding use was intended by 34.8%, increased in younger mothers [AOR = 2.28, 95% CI = 1.04-4.98, P = .04]. Breastfeeding was intended by 72.2%, decreased by Irish ethnicity [AOR = 0.14, 95% CI = 0.067-0.271, P < .001], and low maternal education [AOR = 0.22, 95% CI = 0.117-0.406, P < .001].

CONCLUSION

Educational campaigns on safe sleep for infants in Ireland need to address modifiable SIDS risks factors, focusing on younger, non-Irish mothers, with lower educational attainment.

Child Car Safety: A Parental Survey at a Tertiary Care Emergency Treatment Center in Greece

OBJECTIVES

This study aimed to assess parental behavior in terms of child restraint systems (CRS) use under emergency conditions while driving to the hospital's outpatient settings as well as their routine child car safety (CCS) practices.

METHODS

A cross-sectional survey of parents/caregivers transporting children 13 years or younger was conducted at the Emergency Treatment Center of a pediatric tertiary care center in Athens, Greece. Participants completed a questionnaire inquiring about the possession of CRS, and type and use of appropriate CRS while driving to the Emergency Treatment Center and under routine conditions. In addition, presence and type of parental education with regard to CCS and the use of seat belts among drivers were assessed.

RESULTS

Of 444 participants, 51.4% children were carried restrained, although 48.6% were fastened in an improper seat for their age, in contrast with 23.7% who travel unrestrained on a daily basis. Forward-facing restraint seats were most popular, with 53.9% total use even in children younger than 2 years or older than 4 years, whereas booster seats (9.4%) and rear-facing restraint seats (18.2%) were inappropriately disfavored. Children younger than 4 years, male drivers, and drivers who had received information on CCS had higher odds of using CRS. The proportion of those had never been provided any CCS education was 38.5%.

CONCLUSIONS

Child restraint systems use was inappropriately low under routine conditions and declined even further under emergency circumstances. Most children younger than 2 years and older than 4 years traveled inappropriately restrained in a forward-facing restraint seat. Parents should be more intensively educated on child car safety seat and the proper CRS use.

The multiagency approach to Sudden Unexpected Infant Deaths (SUID): eleven years' experience in the Tuscany Region

Background

The Sudden Unexpected Infant Death Syndrome (SUID) is one of the leading causes of mortality in the first year of life. The aim of this work was the retrospective evaluation of the incidence of SUID and the effectiveness of the multiagency approach to this phenomenon in the Tuscany Region.

Methods

Data were obtained from the regional registry of SUID cases in the period 2009–2019. The registry contains both sudden unexpected deaths in the first week of life (Sudden Unexpected Early Neonatal Deaths - SUEND), and those occurring after the first week up to 1 year of age (SUID).

Results

In this timeframe a total of 73 sudden unexpected deaths occurred in our region; 32 were Unexplained (i.e. Sudden Infant Death Syndrome - SIDS), 24 Explained, 10 Undetermined, and 7 SUEND. Autopsies were performed in 91% of cases, and in 95% of these by three groups of selected pathologists according to our protocol.

We found a low incidence of SUID (0.21 ‰), and SIDS deaths accounted for 0.1‰ of live births (48% of cases) with a high prevalence of infants of non-Italian ethnicity (38% of cases). Bereaved families were able to receive psychological support from mental health professionals and have contact with the family association, Seeds for SIDS. Audits were organized when post-mortem examinations were not carried out or carried out incorrectly in procedural terms, and when the diagnosis was particularly uncertain.

Conclusions

This paper first provides data on SUID mortality based on complete post-mortems in an Italian region. According to these findings we can state that our approach is effective both in terms of correctly performed autopsies and support for bereaved families. Future efforts are necessary to further reduce the incidence of SUID especially among non- Italian infants. An improvement action is also recommended for ensuring a more accurate and consistent picture of the circumstances of death.

The final approval of the National Protocol for the management of SUID cases is therefore strongly advocated in order to improve surveillance in this specific field and abolish disparities among the Italian regions.

Strategies for Prevention of Mother-to-Child Transmission Adopted in the "Real-World" Setting: Data From the Italian Register for HIV-1 Infection in Children

BACKGROUND

Strategies for prevention of HIV-1 mother-to-child transmission (PMTCT) have been continuously optimized. However, cases of vertical transmission continue to occur in high-income countries.

OBJECTIVES

To investigate changes in PMTCT strategies adopted by Italian clinicians over time and to evaluate risk factors for transmission.

METHODS

Data from mother-child pairs prospectively collected by the Italian Register, born in Italy in 1996-2016, were analyzed. Risk factors for MTCT were explored by logistic regression analyses.

RESULTS

Six thousand five hundred three children (348 infections) were included. In our cohort, the proportion of children born to foreign mothers increased from 18.3% (563/3078) in 1996%-2003% to 66.2% (559/857) in 2011-2016 (P < 0.0001). Combination neonatal prophylaxis use significantly (P < 0.0001) increased over time, reaching 6.3% (56/857) after 2010, and it was largely (4.2%) adopted in early preterm infants. The proportion of vaginal deliveries in women with undetectable viral load (VL) increased over time and was 9.9% (85/857) in 2011-2016; no infection occurred among them. In children followed up since birth MTCT, rate was 3.5% (96/2783) in 1996-2003; 1.4% (36/2480) in 2004-2010; and 1.1% (9/835) in 2011-2016. At a multivariate analysis, factors associated with MTCT were vaginal delivery with detectable or missing VL or nonelective caesarean delivery, prematurity, breastfeeding, lack of maternal or neonatal antiretroviral therapy, detectable maternal VL, and age at first observation. Previously described increased risk of offspring of immigrant women was not confirmed.

CONCLUSIONS

Risk of MTCT in Italy is ongoing, even in recent years, underling the need for implementation of the current screening program in pregnancy. Large combination neonatal prophylaxis use in preterm infants was observed, even if data on safety and efficacy in prematures are poor.

The Uniqueness and Importance of Children in Addressing Health Disparities Across the Life Course: Implications for Research

As the Eunice Kennedy Shriver National Institute of Child Health and Human Development's Division of Intramural Population Health Research celebrates its 50th Anniversary, it is appropriate to recognize great achievements in reducing child morbidity and mortality and increasing life expectancy. Unfortunately large racial/ethnic and socioeconomic health and healthcare disparities persist. This commentary suggests a framework to clarify the research and interventions needed to eliminate health disparities starting early in the life course.

Industry Perspective on Using MIDD for Pediatric Studies Requiring Integration of Ontogeny

Joining the Food and Drug Administration/University of Maryland Center of Excellence in Regulatory Science and Innovation Workshop to discuss and identify solutions to optimize pediatric drug development and, in particular, to address the question as to whether we are ready to incorporate pediatric ontogeny into modeling was the opportunity to share learnings, confront ideas, and present examples of studies performed in industry and academia. This was not only the opportunity to reflect on the experience and the knowledge so far within the current regulatory framework but also to look at the future and explore new and future approaches as well as best practices with the use of modeling and simulation and extrapolation as part of pediatric development.

Paediatric HIV-1 infection: updated strategies of prevention mother-to-child transmission

INTRODUCTION

HIV-1 epidemiology is changing and prevention of mother-to-child transmission (PMTCT) strategies have been continuously optimized over time. However, the correct management of infected women during pregnancy is crucial for PMTCT and cases of vertical transmission continue to occur.

OBJECTIVE

To review the most recent evidence regarding the prevention of MTCT in resource-rich and resource-limited settings, focalizing on new possible approaches.

RESULTS

New issues regard the optimal antiretroviral therapy regimen for pregnant women with good immunological control, the use of intrapartum zidovudine (ZDV) in pregnant women with low viral load, the optimization of prophylaxis in the settings where breastfeeding is recommended and use of combined neonatal prophylaxis (CNP) in infants at high-risk for MTCT. Complete viral control, in recent years, has been achieved in most infected pregnant women, has led to change the recommended mode of delivery, since vaginal birth has become a safe option and is now largely recommended. Recent data reported a large use of CNP in preterm infants: this practice may be dangerous, due to the lack of safety data, and its efficacy and effectiveness is unproven.

CONCLUSION

Data are accumulating on efficacy, effectiveness and safety of different PMTCT strategies in various possible clinical scenarios, however further researches are needed in order to optimize the management of infants at extremely low risk for MTCT as well as in those presenting with high risk for infection.

Evolutionary scalpels for dissecting tumor ecosystems

Amidst the growing literature on cancer genomics and intratumor heterogeneity, essential principles in evolutionary biology recur time and time again. Here we use these principles to guide the reader through major advances in cancer research, highlighting issues of "hit hard, hit early" treatment strategies, drug resistance, and metastasis. We distinguish between two frameworks for understanding heterogeneous tumors, both of which can inform treatment strategies: (1) The tumor as diverse ecosystem, a Darwinian population of sometimes-competing, sometimes-cooperating cells; (2) The tumor as tightly integrated, self-regulating organ, which may hijack developmental signals to restore functional heterogeneity after treatment. While the first framework dominates literature on cancer evolution, the second framework enjoys support as well. Throughout this review, we illustrate how mathematical models inform understanding of tumor progression and treatment outcomes. Connecting models to genomic data faces computational and technical hurdles, but high-throughput single-cell technologies show promise to clear these hurdles. This article is part of a Special Issue entitled: Evolutionary principles - heterogeneity in cancer?, edited by Dr. Robert A. Gatenby.