Comparison of skin-to-skin (kangaroo) and traditional care: parenting outcomes and preterm infant development

Optimal presence: enhancing parent integration to maximize neurodevelopmental outcomes in preterm infants

Preterm birth disrupts the natural progression of events in the parent-infant relationship and bestows many of the typical parent responsibilities to the clinical care team. In turn, the neonatal intensive care environment (NICU) introduces obstacles to parents that would not otherwise be encountered and forces parents to adapt to this artificial environment as they seek to bond with and care for their newborn. Facilitating parent presence at the bedside and incorporating them into the care of their preterm infant is critical for lessening the immediate burden to both the parent and offspring while also ensuring the best possible outcome for preterm infants. In this review, we explore the impact that parents exert on the neurodevelopmental outcome of preterm infants and identify several barriers and facilitators to parent presence.

Parenting style in the NICU is stable, measurable, and predictive of 2-year parenting style

Objective

To establish psychometric properties of Baby Care Questionnaire (BCQ) in preterm infants, individual level stability of BCQ scores from NICU to 2 years corrected gestational age (CGA), and to determine whether early BCQ scores predict 2-year parenting styles.

Study design

In this prospective study, the BCQ assessed early parental structure and attunement at 4 time points between NICU and 2-years CGA. The Parenting Styles and Dimensions Questionnaire (PSDQ) at 2-years evaluated authoritative, authoritarian, and permissive parenting styles. Intraclass correlations analyzed reliability and Reliable Change Index (RCI) studied individual-level stability. Multivariate regression examined predictive properties.

Results

n=162 parent/preterm infant dyads were followed sequentially. Cronbach's α BCQ structure and attunement were 0.9 and 0.8. RCI showed high individual level stability of both constructs. Higher early structure scores were associated higher 2-year authoritative scores.

Conclusions

Early parenting characteristics beginning in the NICU are stable in infancy, measurable, reliable, and predictive of 2-year parenting styles. Early parental structure correlates with 2-year authoritative parenting style.

Congenital absence of touch does not preclude normal cognitive and socioemotional development

Attachment theory holds that development of normal affective and social behavior requires physical contact between infant and caregiver. The elevation of touch to paramount importance has gone unchallenged because, prior to the present study, no individual with a congenital lack of somatosensation has been reported, much less studied for psychosocial development. Here we describe Kim, who since birth, has been unable to perceive touch, temperature changes, or pain on the body surface. Despite her inability to sense physical contact, Kim has above-average intelligence. She functions normally in social situations with a variety of people, recognizing emotions in herself and others and demonstrating appropriate affect. Kim experiences anxiety that appears grounded in realistic fears and uncertainties particular to her somatic insensitivity, thus serving as adaptive vigilance in reaction to an abnormal sensorium. Her normal socioemotional development, evident from an early age, likely resulted from Kim being able to appreciate her parents' loving care through gaze, movement, and hearing. In sum, Kim upends the idea of touch as critical to developing a sense of self, secure attachment, and family bonds.

Insecure Attachment, Oxytocinergic System and C-Tactile Fibers: An Integrative and Translational Pathophysiological Model of Fibromyalgia and Central Sensitivity Syndromes

Although the pathophysiology of fibromyalgia syndrome has been better understood in recent decades, a unified model of its pathogenesis and an effective therapeutic approach are still far from being realized. The main aim of this article will be to delve into the fundamental mechanisms of the pathophysiology of fibromyalgia conceptualized as stress intolerance syndrome. Using the biopsychosocial model of chronic pain syndromes, we will describe the potential role of the attachment system, C-tactile fibers, and oxytocinergic system dysfunction in the pathophysiology of fibromyalgia syndrome and other central sensitivity syndromes. At the end of the article, the therapeutic implications of this new global and translational pathophysiological model will be briefly discussed.

A systematic review and multivariate meta-analysis of the physical and mental health benefits of touch interventions

Receiving touch is of critical importance, as many studies have shown that touch promotes mental and physical well-being. We conducted a pre-registered (PROSPERO: CRD42022304281) systematic review and multilevel meta-analysis encompassing 137 studies in the meta-analysis and 75 additional studies in the systematic review (n = 12,966 individuals, search via Google Scholar, PubMed and Web of Science until 1 October 2022) to identify critical factors moderating touch intervention efficacy. Included studies always featured a touch versus no touch control intervention with diverse health outcomes as dependent variables. Risk of bias was assessed via small study, randomization, sequencing, performance and attrition bias. Touch interventions were especially effective in regulating cortisol levels (Hedges' g = 0.78, 95% confidence interval (CI) 0.24 to 1.31) and increasing weight (0.65, 95% CI 0.37 to 0.94) in newborns as well as in reducing pain (0.69, 95% CI 0.48 to 0.89), feelings of depression (0.59, 95% CI 0.40 to 0.78) and state (0.64, 95% CI 0.44 to 0.84) or trait anxiety (0.59, 95% CI 0.40 to 0.77) for adults. Comparing touch interventions involving objects or robots resulted in similar physical (0.56, 95% CI 0.24 to 0.88 versus 0.51, 95% CI 0.38 to 0.64) but lower mental health benefits (0.34, 95% CI 0.19 to 0.49 versus 0.58, 95% CI 0.43 to 0.73). Adult clinical cohorts profited more strongly in mental health domains compared with healthy individuals (0.63, 95% CI 0.46 to 0.80 versus 0.37, 95% CI 0.20 to 0.55). We found no difference in health benefits in adults when comparing touch applied by a familiar person or a health care professional (0.51, 95% CI 0.29 to 0.73 versus 0.50, 95% CI 0.38 to 0.61), but parental touch was more beneficial in newborns (0.69, 95% CI 0.50 to 0.88 versus 0.39, 95% CI 0.18 to 0.61). Small but significant small study bias and the impossibility to blind experimental conditions need to be considered. Leveraging factors that influence touch intervention efficacy will help maximize the benefits of future interventions and focus research in this field.

Enhancing NICU Care and Communication: Perspectives of Moderately Preterm Infant Parents

BACKGROUND

Moderately preterm infants (MPTI) comprise a large proportion of NICU admissions and are an understudied population. The unique experience of families with MPTIs has yet to be examined in the literature. Describing MPTI parent needs and preferences may inform interventions to improve care and outcomes for this population.

METHODS

Semistructured qualitative interviews were performed with English-speaking birth parents of infants born between 32 and 34 weeks gestation to describe their NICU experience and identify areas for improvement specifically surrounding care team inclusion, education, discharge, and communication. Interviews were recorded, transcribed, and analyzed using directed content analysis. Enrollment ceased when the data reached thematic saturation.

RESULTS

Sixteen birth parents participated. Four themes emerged around parent-medical team connectedness, parental confusion, discharge readiness, and the desire for a use of a mix of in-person and electronic communication methods (e-mail, texting, apps, etc) for communication. MPTI parents valued a strong connection with the medical team; however, they described a lack of knowledge regarding the reasons for admission and ongoing management. Near discharge, parents desired more information regarding feeding, reflux, and breathing patterns. Parents preferred in-person discussions but described a role for electronic methods to improve their understanding of their infant and discharge readiness.

CONCLUSIONS

From the MPTI parent perspective, clinicians can focus improvement efforts on communication, specifically around reasons for admission, discharge planning, and anticipatory guidance. These results may serve as a foundation for initiatives to improve the MPTI parent experience and potentially parent and MPTI outcomes.

Skin-to-Skin Contact for Transferring Preterm Infants from the Delivery Room to the Neonatal Intensive Care Unit Is Promising Despite Moderate Heat Loss during the Procedure

OBJECTIVE

The principal aim of this prospective observational study was to assess the feasibility of skin-to-skin contact (SSC) with fathers during the transfer of preterm infants from the delivery room to the neonatal intensive care unit (NICU) in comparison with incubator transfers.

STUDY DESIGN

The study population comprised preterm singletons born between May and December 2019 in our maternity ward who did not require invasive ventilation. Physiological parameters (axillary temperature, heart rate, and fraction of inspired oxygen) of the newborns were recorded at prespecified steps during the transfers. The impact of the transfer mode on early blood glucose level, blood gas, and neonatal morbidities and mortality and the delay in the first SSC in the NICU and breastfeeding implementation and maintenance were also analyzed.

RESULTS

Twenty-eight preterm infants were transferred in incubators, and 29 infants were transferred using SSC. The SSC transfer induced heat loss (mean, -0.45°C; standard deviation [SD], 0.58). However, the decrease in temperature was similar to that observed during transfer in the incubator (mean, -0.30°C; SD, 0.49; p = 0.3). The transfer using SSC was not an independent factor associated with hypothermia at admission in the NICU (adjusted odds ratio, 2.6 [0.68-9.75]; p = 0.16). Neonatal morbidities and mortality were similar regardless of the transfer mode. The SSC transfer promoted early SSC in the neonatal unit (median hour [range], incubator 26 [2-126] vs SSC 13 [1-136], p = 0.03) and breastfeeding at discharge (incubator 35.7% vs SSC 69%, p = 0.01).

CONCLUSION

The SSC transfer of preterm infants was feasible and promoted earlier SSC and breastfeeding. Nevertheless, the SSC transfer, like the transfer in the incubator, induced moderate heat losses that exacerbated hypothermia at admission in the NICU. The improvement of thermal conservation during infant positioning and the continuation of SSC in the unit could help in preventing hypothermia.

KEY POINTS

· The SSC transfer was associated with heat loss during the transfer procedure.. · The SSC transfer promoted earlier SSC in the neonatal unit.. · The SSC transfer was likely to encourage breastfeeding..

Equity, inclusion and cultural humility: contemporizing the neonatal intensive care unit family-centered care model

Existing NICU family centered care models lack the key elements of equity, inclusion and cultural humility. These models were conceived to support families during the stressful life event of an infant's NICU admission. Their development, however, occurred prior to recognition of the medical field's systematic shortcomings in providing equitable care and their impact on outcome disparities for marginalized communities; thus, they do not include cultural or equitable healthcare considerations. Given the significant neonatal care inequities for marginalized groups, incorporating the experience of these patients in a targeted manner into family centered care frameworks is of critical importance to ensure culturally humble and thus more just and equitable treatment. Here, we review past approaches to NICU family centered care and propose a novel, updated framework which integrates culturally humble care into the NICU family centered care framework.

Parent-child interactive behavior in a German sample of parents with and without a mental illness: model replication and adaption of the Coding Interactive Behavior system

Studies using observational measures often fail to meet statistical standards for both reliability and validity. The present study examined the psychometric properties of the Coding Interactive Behavior (CIB) System within a German sample of parent-child dyads. The sample consisted of 149 parents with and without a mental illness and their children [n experimental group (EG) = 75, n control group (CG) = 74] who participated in the larger Children of Mentally Ill Parents at Risk Evaluation (COMPARE) study. The age of the children ranged from 3 to 12 years (M = 7.99, SD = 2.5). Exploratory factor analysis supported a five-factor model of the CIB with items describing 1) parental sensitivity/reciprocity, 2) parental intrusiveness, 3) child withdrawal, 4) child involvement, and 5) parent limit setting/child compliance. Compared to international samples, the model was reduced by two independent dyadic factors. Testing for predictive validity identified seven items with predictive power to differentiate parental group membership. The CIB factors did not seem to be sufficiently sensitive to illustrate differences in interaction within a sample of parents with various mental illnesses. To apply the CIB to the described sample or similar ones in the future, additional measurement instruments may be necessary.

Daily skin-to-skin contact alters microbiota development in healthy full-term infants

The gut microbiota is vital for human body development and function. Its development in early life is influenced by various environmental factors. In this randomized controlled trial, the gut microbiota was obtained as a secondary outcome measure in a study on the effects of one hour of daily skin-to-skin contact (SSC) for five weeks in healthy full-term infants. Specifically, we studied the effects on alpha/beta diversity, volatility, microbiota maturation, and bacterial and gut-brain-axis-related functional abundances in microbiota assessed thrice in the first year. Pregnant Dutch women (n = 116) were randomly assigned to the SSC or care-as-usual groups. The SSC group participants engaged in one hour of daily SSC from birth to five weeks of age. Stool samples were collected at two, five, and 52 weeks and the V4 region was sequenced. We observed significant differences in the microbiota composition, bacterial abundances, and predicted functional pathways between the groups. The SSC group exhibited lower microbiota volatility during early infancy. Microbiota maturation was slower in the SSC group during the first year and our results suggested that breastfeeding duration may have partially mediated this relation. Our findings provide evidence that postpartum SSC may influence microbiota development. Replication is necessary to validate and generalize these results. Future studies should include direct stress measurements and extend microbiota sampling beyond the first year to investigate stress as a mechanism and research SSC's impact on long-term microbiota maturation trajectories.

Evaluating the impact of sling provision and training upon maternal mental health, wellbeing and parenting: A randomised feasibility trial

BACKGROUND

Close body contact interventions such as Kangaroo Mother Care have been shown to improve maternal mental health following birth. Infant carriers ('slings') facilitate hands-free close body contact. No studies have specifically examined whether sling use improves maternal mental health. A full-scale efficacy study is needed to examine whether sling use is beneficial to maternal mental health. The current study is a feasibility study designed to gather information to support the design of a future RCT, such as acceptability and study parameters, including recruitment rates, consent rate and attrition.

METHOD

Mothers of infants aged 0-6 weeks were randomised to one of two conditions: intervention (n = 35) vs. waitlist control (n = 32). Intervention participants received sling training, support, and free sling hire for 12 weeks. Participants completed self-report measures of mood, wellbeing and parenting at baseline (Time 1), and 6- (Time 2) and 12- (Time 3) weeks post-baseline.

RESULTS

Eligibility and consent rates met feasibility objectives, though there were some difficulties with retention of participants in the study. Preliminary effectiveness analyses showed a non-significant improvement with a small effect size in postnatal depression from T1 to T3, and a significant improvement with a medium effect size in maternal self-efficacy from T1 to T3. Qualitative feedback indicated acceptability of the intervention and study participation. Intervention participants attributed greater autonomy, bonding with their baby, and parental self-confidence, to the intervention.

CONCLUSIONS

These findings indicate a randomised study of the impact of a sling and related support intervention upon maternal mental health is feasible. These findings should be interpreted within the context of sampling bias (due to the use of volunteer sampling methods), an absence of feedback from those who discontinued participation in the study, and the study not being adequately powered.

TRIAL REGISTRATION

Registration number ISRCTN88575352.

Biological and environmental factors may affect children's executive function through motor and sensorimotor development: Preterm birth and cerebral palsy

Disruptive biological and environmental factors may undermine the development of children's motor and sensorimotor skills. Since the development of cognitive skills, including executive function, is grounded in early motor and sensorimotor experiences, early delays or impairments in motor and sensorimotor processing often trigger dynamic developmental cascades that lead to suboptimal executive function outcomes. The purpose of this perspective paper is to link early differences in motor/sensorimotor processing to the development of executive function in children born preterm or with cerebral palsy. Uncovering such links in clinical populations would improve our understanding of developmental pathways and key motor and sensorimotor skills that are antecedent and foundational for the development of executive function. This knowledge will allow the refinement of early interventions targeting motor and sensorimotor skills with the goal of proactively improving executive function outcomes in at-risk populations.

The beneficial effect of early and prolonged kangaroo mother care on long-term neuro-developmental outcomes in low birth neonates - A cohort study

AIM

Kangaroo mother care (KMC) has immense short-term benefits, but data on long-term outcomes are scarce. Hence, this study aimed to compare the neurodevelopmental outcomes at 12 months of corrected age (CA) in infants <2000 g receiving early and prolonged KMC to a control group.

METHODS

This was a cohort study that was conducted from January 2017 to November 2018. All neonates<2000 g were eligible for the study. Neonates that received early initiation (<72 h of life) and prolonged KMC comprised the intervention group and were compared to neonates without the intervention. Bayley Scales of Infant and Toddler Development, Third edition (BSID-III) was done at 12 months of CA, and this was analysed using t-test and multi-linear regression analysis.

RESULTS

There were 75 neonates in the intervention and 69 in the control group. Baseline characteristics were comparable. We found higher composite scores for cognition (110.38 ± 9.89 vs. 105.44 ± 8.77, p value = 0.023), language (107.51 ± 10.72 vs. 101.05 ± 12.06, p value = 0.014) and adaptive behaviour (87.97 ± 9.97 vs. 80 ± 9.1, p value<0.001) in the early and prolonged KMC group in comparison to the control group.

CONCLUSION

Infants with early and prolonged KMC have better neurodevelopmental outcomes in terms of cognition, language and adaptive behaviour at 12 months of CA.

Identifying the common elements of psychological and psychosocial interventions for preventing postpartum depression: Application of the distillation and matching model to 37 winning protocols from 36 intervention studies

AIM

Postpartum depression is prevalent worldwide and seriously endangers maternal and child health. Previous studies have demonstrated the effectiveness of psychological and psychosocial intervention programmes in preventing postpartum depression. However, the literature offers limited practice guidance. Therefore, this study aimed to deeply analyse prior findings to gather rich evidence-based information on this topic.

METHODS

Using the distillation and matching model, we conducted a systematic review of psychological and psychosocial interventions used to effectively prevent postpartum depression. Four researchers trained in coding system independently read eligible studies and identified reliable (Cohen's kappa >0.40) and frequently occurring (frequency ≥3 winning study groups) practice elements.

RESULTS

Our review included 36 studies containing 37 winning study groups. Fourteen practice elements were identified and subsequently divided into six categories: postpartum practical problems-related, social support-related, interpersonal psychotherapy-related, cognitive behavioural therapy-related, labour trauma-related and non-specific techniques. The most common practice elements were baby care skills and mother-infant bonding/interaction enhancement. Inter-rater reliability averaged 0.86, ranging from 0.48 to 1.

CONCLUSION

The practice elements identified in this study provide rich evidence-based information that can guide clinical practitioners in selecting or developing effective, realistically available intervention programmes.

Lactation Support as a Proxy Measure of Family-Centered Care Quality in Neonates with Life-Limiting Conditions-A Comparative Study

BACKGROUND

Lactation support is an important measure of Family-Centered Care (FCC) in the Neonatal Intensive Care Unit (NICU). Life-limiting conditions (LLCs) raise complex ethical care issues for providers and parents in the NICU and represent a key and often overlooked population for whom FCC is particularly important. We investigated healthcare disparities in FCC lactation support quality in infants with LLCs.

METHODS

A retrospective cohort of inborn infants with or without LLCs admitted to the NICU between 2015-2023 included 395 infants with 219 LLC infants and 176 matched non-LLC infants and were compared on LLC supports.

RESULTS

The LLC cohort experienced greater skin-to-skin support, but less lactation specialist visits, breast pumps provided, and human milk oral care use. LLC infants also experienced less maternal visitation, use of donor milk (LLC: 15.5%, non-LLC: 33.5%), and breastfeeds (LLC: 24.2%, non-LLC: 43.2%), with lower mean human milk provision (LLC: 36.6%, non-LLC: 67.1%). LLC infants who survived to discharge had similar human milk use as non-LLC infants (LLC: 49.8%, non-LLC: 50.6%).

CONCLUSION

Lactation support was significantly absent for families and infants who presented with LLCs in the NICU, suggesting that policies can be altered to increase lactation support FCC quality for this population.

The integrative process promoted by EMDR in dissociative disorders: neurobiological mechanisms, psychometric tools, and intervention efficacy on the psychological impact of the COVID-19 pandemic

Dissociative disorders (DDs) are characterized by a discontinuity in the normal integration of consciousness, memory, identity, emotion, perception, bodily representation, motor control, and action. The life-threatening coronavirus disease 2019 (COVID-19) pandemic has been identified as a potentially traumatic event and may produce a wide range of mental health problems, such as depression, anxiety disorders, sleep disorders, and DD, stemming from pandemic-related events, such as sickness, isolation, losing loved ones, and fear for one's life. In our conceptual analysis, we introduce the contribution of the structural dissociation of personality (SDP) theory and polyvagal theory to the conceptualization of the COVID-19 pandemic-triggered DD and the importance of assessing perceived safety in DD through neurophysiologically informed psychometric tools. In addition, we analyzed the contribution of eye movement desensitization and reprocessing (EMDR) to the treatment of the COVID-19 pandemic-triggered DD and suggest possible neurobiological mechanisms of action of the EMDR. In particular, we propose that, through slow eye movements, the EMDR may promote an initial non-rapid-eye-movement sleep stage 1-like activity, a subsequent access to a slow-wave sleep activity, and an oxytocinergic neurotransmission that, in turn, may foster the functional coupling between paraventricular nucleus and both sympathetic and parasympathetic cardioinhibitory nuclei. Neurophysiologically informed psychometric tools for safety evaluation in DDs are discussed. Furthermore, clinical and public health implications are considered, combining the EMDR, SDP theory, and polyvagal conceptualizations in light of the potential dissociative symptomatology triggered by the COVID-19 pandemic.

Immediate skin-to-skin contact versus care under radiant warmer at birth in moderate to late preterm neonates - A randomized controlled trial

OBJECTIVE

To compare the effect of immediate care at birth in skin-to-skin contact (SSC) or under a radiant warmer on cardiorespiratory stability at 60 minutes of age in moderate-to-late preterm neonates.

METHODS

In this open-label, parallel-group, randomized controlled trial, neonates born at 330/7 to 366/7 weeks of gestation by vaginal delivery and breathing or crying were randomized to receive care at birth in SSC (n = 50) or under a radiant warmer (n = 50). In the SSC group, immediate care at birth including drying and clearing of the airway was provided in SSC over the mother's abdomen. SSC was maintained for an observational period of 60 minutes after birth. In the radiant warmer group, care at birth and post-birth observation was performed under an overhead radiant warmer. The primary outcome of the study was the stability of the cardio-respiratory system in late preterm infants (SCRIP) score at 60 minutes of age.

RESULTS

Baseline variables were similar in the two study groups. The SCRIP score at 60 minutes of age was similar in the two study groups (median: 5.0, IQR: 5-6 vs. 5.0, 5-6). The mean axillary temperature at 60 minutes of age was significantly lower in the SSC group (°C; 36.4 ± 0.4 vs. 36.6 ± 0.4, P = 0.004).

CONCLUSION

It was feasible to provide immediate care at birth in moderate and late preterm neonates while being positioned in SSC with the mother. However, in comparison to care under a radiant warmer, this did not lead to better cardiorespiratory stability at 60 minutes of age.

TRIAL REGISTRATION

Clinical Trial Registry of India (CTRI/2021/09/036730).

Maternal mental health and engagement in developmental care activities with preterm infants in the NICU

OBJECTIVE

To examine associations between maternal mental health and involvement in developmental care in the NICU.

STUDY DESIGN

Mothers of infants born <32 weeks gestation (n = 135) were approached to complete mental health screening questionnaires at two weeks after admission. Mothers who completed screening (n = 55) were further classified as with (n = 19) and without (n = 36) elevated scores. Mothers' frequency, rate, and duration of developmental care activities were documented in the electronic health record.

RESULTS

35% of screened mothers scored above the cutoff for clinical concern on ≥1 measure. No significant differences between the 3 groups were identified for rates, frequency, or amount of all developmental care, kangaroo care, and swaddled holding.

CONCLUSION

Elevated scores on maternal mental health questionnaires did not relate to developmental care. Maternal developmental care engagement may not indicate mental health status. Universal screening for psychological distress is required to accurately detect symptoms in mothers of hospitalized preterm infants.

NICU sensory experiences associated with positive outcomes: an integrative review of evidence from 2015-2020

To inform changes to the Supporting and Enhancing NICU Sensory Experiences (SENSE) program, studies investigating sensory-based interventions in the NICU with preterm infants born ≤32 weeks were identified. Studies published between October 2015 to December 2020, and with outcomes related to infant development or parent well-being, were included in this integrative review. The systematic search used databases including MEDLINE, Cumulative Index to Nursing and Allied Health Literature, the Cochrane Library, and Google Scholar. Fifty-seven articles (15 tactile, 9 auditory, 5 visual, 1 gustatory/olfactory, 5 kinesthetic, and 22 multimodal) were identified. The majority of the sensory interventions that were identified within the articles were reported in a previous integrative review (1995-2015) and already included in the SENSE program. New evidence has led to refinements of the SENSE program, notably the addition of position changes across postmenstrual age (PMA) and visual tracking starting at 34 weeks PMA.

Developmental Cascades Link Maternal-Newborn Skin-to-Skin Contact with Young Adults' Psychological Symptoms, Oxytocin, and Immunity; Charting Mechanisms of Developmental Continuity from Birth to Adulthood

Premature birth disrupts the continuity of maternal-newborn bodily contact, which underpins the development of physiological and behavioral support systems. Utilizing a unique cohort of mother-preterm dyads who received skin-to-skin contact (Kangaroo Care, KC) versus controls, and following them to adulthood, we examined how a touch-based neonatal intervention impacts three adult outcomes; anxiety/depressive symptoms, oxytocin, and secretory immunoglobulin A (s-IgA), a biomarker of the immune system. Consistent with dynamic systems' theory, we found that links from KC to adult outcomes were indirect, mediated by its effects on maternal mood, child attention and executive functions, and mother-child synchrony across development. These improvements shaped adult outcomes via three mechanisms; (a) "sensitive periods", where the infancy improvement directly links with an outcome, for instance, infant attention linked with higher oxytocin and lower s-IgA; (b) "step-by-step continuity", where the infancy improvement triggers iterative changes across development, gradually shaping an outcome; for instance, mother-infant synchrony was stable across development and predicted lower anxiety/depressive symptoms; and (c) "inclusive mutual-influences", describing cross-time associations between maternal, child, and dyadic factors; for instance, from maternal mood to child executive functions and back. Findings highlight the long-term impact of a birth intervention across development and provide valuable insights on the mechanisms of "developmental continuity", among the key topics in developmental research.

The effectiveness of kangaroo mother care in lowering postpartum depression in mothers of preterm and low birth weight babies: a systematic review and meta-analysis

Background

Kangaroo mother care (KMC) intervention involves skin-to-skin contact between mother and infant. Some studies have shown a decrease in postpartum depression (PPD) in mothers of preterm and low birth weight (LBW) infants. However, the literature is scattered and of variable quality.

Aims

To conduct a systematic review of available literature and provide a comprehensive picture of the effect of KMC on PPD among mothers of preterm and LBW infants.

Methods

The study was reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) Guidelines. After PROSPERO registration, a systematic search was conducted using PubMed, Cochrane Central Library, and Google Scholar from the inception of the databases till 14 June 2021. Of the 2944 studies assessed for titles and abstracts, nine studies with 2042 participants were included in the review. Included articles targeted mothers with LBW (<2500 g) or preterm infants (<37 weeks), used an authentic PPD tool, and had standard care or an incubator as the control group. Studies not published in English and in which mothers had a previous psychiatric illness were excluded. The risk of bias was assessed using the Cochrane Risk of Bias Tool for randomized control trials and the Newcastle-Ottawa Scale for observational studies. All the results were converted to standard mean deviation and pooled together using a random-effects model with a 95% CI. A P-value of less than 0.05 is considered significant.

Results

KMC Intervention was significantly associated with a lower depression score than control groups. The reduction in depression in the intervention (KMC) group was moderate: SMD=-0.38 (-0.68 to -0.08; 95% CI; I 2=86%; P=0.013). No significant difference was found between the PPD scores of both groups using the Edinburgh Postpartum Depression Scale score.

Conclusions

The authors conclude that the negative effects of LBW and preterm birth experience on maternal mental health can be avoided to a moderate degree by KMC. Due to a lack of methodological uniformity, different scales for outcome measurement, and discrepancies in intervention features, significantly high heterogeneity was detected. The authors need further larger-scale studies with a uniform study design to better predict the efficacy of KMC better.

What are C-tactile afferents and how do they relate to "affective touch"?

Since their initial discovery in cats, low-threshold C-fiber mechanoreceptors have become a central interest of scientists studying the affective aspects of touch. Their pursuit in humans, here termed C-tactile (CT) afferents, has led to the establishment of a research field referred to as "affective touch", which is differentiated from "discriminative touch". Presently, we review these developments based on an automated semantic analysis of more than 1000 published abstracts as well as empirical evidence and the solicited opinions of leading experts in the field. Our review provides a historical perspective and update of CT research, it reflects on the meaning of "affective touch", and discusses how current insights challenge established views on the relation between CTs and affective touch. We conclude that CTs support gentle, affective touch, but that not every affective touch experience relies on CTs or must necessarily be pleasant. Moreover, we speculate that currently underappreciated aspects of CT signaling will prove relevant for the manner in which these unique fibers support how humans connect both physically and emotionally.

Over-reaching with causality language in neurodevelopmental infant research: A methodological literature review

BACKGROUND

A methodological review of 78 empirical articles focusing on the neurodevelopmental outcomes of at-risk infants was conducted.

AIMS

To examine ways language and terminology are used to describe methods, present results, and/or state conclusions in studies published during 1994-2005, a decade reflecting major advances in neurodevelopmental research and in medical intervention. More specifically, to investigate to what extent the design of the study and the language in the results section aligned in regard to causality.

METHODS

A process of search and selection of studies published in pediatric journals was conducted through Google Scholar. Criteria of inclusion and exclusion, following PRISMA, were used. Selected studies reported neurodevelopmental outcomes of infants and young children considered at-risk, and were further categorized accordingly to their study designs. Language use in regard to whether the presentation and interpretation of results may convey causal relationships between birth risk factors and neurodevelopmental outcomes was examined following two analytical steps.

RESULTS

Forty out of 78 studies, (51.28 %) used causality-implying language (e.g., effect, predict, influence) notwithstanding that the study design was non-causal.

CONCLUSIONS

Anticipating the next generation of neurodevelopmental-outcomes research, a framework that aims to raise awareness of the importance of language use and the impact of causality-related terms often used in longitudinal studies is proposed. The objective is to avoid ambiguities and misunderstandings around causal or non-causal connections between birth risk factors and developmental outcomes across diverse audiences, including early intervention practitioners working directly with infants and their families.

Mothers' use of touch across infants' development and its implications for word learning: Evidence from Korean dyadic interactions

Caregivers' touches that occur alongside words and utterances could aid in the detection of word/utterance boundaries and the mapping of word forms to word meanings. We examined changes in caregivers' use of touches with their speech directed to infants using a multimodal cross-sectional corpus of 35 Korean mother-child dyads across three age groups of infants (8, 14, and 27 months). We tested the hypothesis that caregivers' frequency and use of touches with speech change with infants' development. Results revealed that the frequency of word/utterance-touch alignment as well as word + touch co-occurrence is highest in speech addressed to the youngest group of infants. Thus, this study provides support for the hypothesis that caregivers' use of touch during dyadic interactions is sensitive to infants' age in a way similar to caregivers' use of speech alone and could provide cues useful to infants' language learning at critical points in early development.

Breastfeeding at Any Cost? Adverse Effects of Breastfeeding Pain on Mother-Infant Behavior

Breast milk is considered the ideal infant nutrition, and medical organizations encourage breastfeeding worldwide. Moreover, breastfeeding is often perceived as a natural and spontaneous socio-biological process and one of the fundamental roles of new mothers. While breastfeeding is beneficial, little scientific consideration has been given to its potential psychological challenges. Here, we investigate the phenomenon of breastfeeding pain in mothers and its association with maternal and infant behavioral regulation. During the postpartum weeks, the mother-infant dyad can be considered one allostatic unit directed at infant regulation and development. We hypothesize that pain comprises an allostatic challenge for mothers and will thus impair the capacity for dyadic regulation. To test this, we recruited 71 mothers with varying levels of breastfeeding pain and videotaped them with their infants (2-35 weeks old) during spontaneous face-to-face interactions. We quantified the individual differences in dyadic regulation by behaviorally coding the second-by-second affective expressions for each mother and infant throughout their interactions. We tested the extent to which breastfeeding pain alters affect regulation during mother-infant interactions. We discovered that mothers with severe breastfeeding pain express less affective expressions and less infant-directed gaze during interactive moments of engagement and play than mothers with no or moderate pain. Moreover, infants of mothers experiencing pain during breastfeeding express less affective expressions and more mother-directed gaze while interacting with their mothers than infants of mothers who are not in pain. This demonstrates that the allostatic challenge of maternal pain interferes with the behavioral regulation of both mothers and infants. Since the mother-infant dyad is a codependent allostatic unit, the allostatic challenges of one partner can impact the dyad and thus potentially impact child development, bonding, and mother and infant well-being. The challenges of breastfeeding should be considered in addition to the nutritional advances.

Parenting Style Interventions in Parents of Preterm and High-Risk Infants: Controversies, Cost, and Future Directions

This review highlights the current state of evidence on interventions whose primary purpose is to change parenting style in parents of preterm, and other-high risk, infants. To date, interventions for parents of preterm infants are heterogeneous with variability in intervention timing, measured outcomes, program components, and cost. Most interventions target parental responsivity/sensitivity. Most reported outcomes are short-term, measured at age less than 2 years. The few studies that report later child outcomes in prekindergarten/school-aged children are encouraging, overall indicating improved cognition and behavior in the children of parents who received a parenting style intervention.

Instruments to measure interaction of mothers and newborns: A systematic review

Interactions between newborns and their parents/primary caregivers are characterized by asymmetric and dependent relationships. This systematic review mapped, identified, and described the psychometric parameters, categories, and items of instruments used to assess mother-newborn interaction. Seven electronic databases were accessed in this study. Furthermore, this research included neonatal interaction studies describing instruments' items, domains, and psychometric properties while excluding studies that focused on maternal interactions and lacked items for assessing newborns. Additionally, studies validated with older infants that did not have a newborn in the sample were used for test validation, which is a criterion used to decrease the risk of bias. Fourteen observational instruments from 1047 identified citations were included that addressed interactions using varying techniques, constructs, and settings. Particularly, we focused on observational settings that assessed interactions with communication-based constructs in the context of proximity or distance as influenced by physical, behavioral, or procedural barriers. These tools are also used to predict risk behaviors in a psychological context, mitigate feeding difficulties, and conduct neurobehavioral assessments of mother-newborn interactions. The elicited imitation was also an observational setting. This study found that the most described properties in the included citations were inter-rater reliability followed by criterion validity. However, only two instruments reported content, construct, and criterion validity, as well as a description of an internal consistency assessment and inter-rater reliability. Finally, the synthesis of the instruments reported in this study can guide clinicians and researchers in selecting the most appropriate one for their own application.

Protocol for a prospective multicenter longitudinal randomized controlled trial (CALIN) of sensory-tonic stimulation to foster parent child interactions and social cognition in very premature infants

Introduction

Premature birth is associated with long-term somatic and neurological disorders, including cognitive, social and behavioral impairments. Moreover, the mothers of infants born preterm exhibit a higher prevalence of anxiety and depressive symptoms after birth. Early rehabilitation, developmental care, and parenting support have already been shown to have a positive impact on neurological outcome. However, no randomized controlled study has so far assessed the effects on parenting and long-term neurological outcomes of proprioceptive stimulation to trigger positive brain plasticity in very preterm babies. The CALIN project will therefore investigate the impact of sensory-tonic stimulation (STS) of extremely preterm infants by their parents on child parent interactions, infants' morphological and functional brain development and subsequent cognition (including social cognition), and parents' anxiety and depressive symptoms in the postpartum period.

Methods and analysis

Infants born between 25 and 32 weeks of gestation will be randomly assigned to the "STS + Kangaroo care" or "Kangaroo care" group. The primary endpoint, child and parent interactions, will be rated at 12 months corrected age using the Coding Interactive Behavior system. Secondary endpoints include: 1/functional and anatomical brain maturation sequentially assessed during neonatal hospitalization using electroencephalogram (EEG), amplitude-integrated EEG (aEEG), cranial ultrasound and MRI performed at term-corrected age, 2/social and cognitive outcomes assessed at 15 months, 2, 4 and 6 years, and 3/parents' anxiety and depressive symptoms assessed at 7 ± 1 weeks after birth, using dedicated questionnaires.

Ethics and dissemination

This study was approved by the French Ethics Committee for the Protection of Persons on 18 October 2021. It is registered with the French National Agency for the Safety of Medicines and Health Products (ANSM; no. 2020-A00382-37). The registry number on ClinicalTrials.gov is NCT04380051.

Efficacy of a randomized controlled trial of a perinatal adaptation of COS-P in promoting maternal sensitivity and mental wellbeing among women with psychosocial vulnerabilities

Pregnant women with psychosocial vulnerabilities should be offered perinatal interventions that include a parenting component to ameliorate the potential negative effects of maternal mental health problems and/or poor social network on parenting. One such intervention program is the Circle of Security-Parenting intervention (COS-P). The COS-P is a manualized video-based intervention that based on attachment theory seek to enhance maternal sensitivity and decrease the risk on insecure and disorganized attachment. We carried out a randomized controlled trial examining the efficacy of a perinatal adapted version of COS-P for women with psychosocial vulnerabilities (e.g. histories of mental health problems and/or poor social networks). Eligible participants (N = 78) were recruited to the study by midwives during regular prenatal sessions. Interventions were delivered individually at home by trained health nurses both pre and post birth. The primary outcome was maternal sensitivity assessed with the Coding Interactive Behavior Manual by blinded coders from video-recordings of mother-infant free play interactions. Secondary outcomes were mother-reported depressive symptoms, parental reflective functioning, parental stress, infant socio-emotional functioning, and maternal wellbeing. All outcomes were assessed at nine months infant age. We did not find an effect of the intervention on the primary outcome of maternal sensitivity (β = -0.08; 95% CI [-0.41, 0.26], p = .66). Neither did we find intervention effects on the secondary outcomes of depressive symptoms, parental reflective functioning, maternal well-being, or infant socio-emotional functioning. We did however find that the intervention decreased parental stress (β = -8.51; 95% CI [-16.6;-0.41], p = .04). The results are discussed in light of existing findings on the effect of COS-P and sample heterogeneity. Furthermore, we discuss the challenges of adapting the COS-P for pregnant women, some without prior experiences with caregiving. Future research with larger at-risk samples examining moderation factors (e.g. adult attachment, depression maternal-fetal attachment) are recommended.

Clinical practice guideline for kangaroo mother care in preterm and low birth weight infants

Kangaroo mother care has reduced mortality and morbidity in preterm and low birth weight infants and has many benefits, such as promoting breastfeeding. Based on the current evidence in China and international, we developed a clinical practice guideline for kangaroo mother care in preterm and low birth weight infants using the Grading of Recommendations, Assessment, Development and Evaluation and proposed 34 recommendations for 20 key questions. Our goal is to promote the appropriate implementation of kangaroo mother care in clinical practice.

Affective touch in the context of development, oxytocin signaling, and autism

Touch represents one of our most important senses throughout life and particularly in the context of our social and emotional experiences. In this review, we draw on research on touch processing from both animal models and humans. Firstly, we briefly describe the cutaneous touch receptors and neural processing of both affective and discriminative touch. We then outline how our sense of touch develops and summarize increasing evidence demonstrating how essential early tactile stimulation is for the development of brain and behavior, with a particular focus on effects of tactile stimulation in infant animals and pediatric massage and Kangaroo care in human infants. Next, the potential mechanisms whereby early tactile stimulation influences both brain and behavioral development are discussed, focusing on its ability to promote neural plasticity changes and brain interhemispheric communication, development of social behavior and bonding, and reward sensitivity through modulation of growth factor, oxytocin, and opioid signaling. Finally, we consider the implications of evidence for atypical responses to touch in neurodevelopmental disorders such as autism spectrum disorder and discuss existing evidence and future priorities for establishing potential beneficial effects of interventions using massage or pharmacological treatments targeting oxytocin or other neurochemical systems.

Effects of skin-to-skin contact on full-term infants' stress reactivity and quality of mother-infant interactions

Skin-to-skin contact (SSC) between mothers and their infants has beneficial effects in both preterm and full-term infants. Underlying mechanisms are largely unknown. This randomized controlled trial assessed whether daily SSC in full-term mother-infant dyads: (1) decreases infants' cortisol and behavioral reactivity to a mild naturalistic stressor, and (2) facilitates interaction quality between infants and mothers (i.e., improved maternal caregiving behavior and mother-infant adrenocortical synchrony). Pregnant Dutch women (N = 116) were recruited and randomly allocated to an SSC or care-as-usual condition. The SSC condition performed 1 h of SSC daily, from birth until postnatal week 5. In week 5, mothers bathed the infant (known mild stressor). Infant and maternal cortisol was sampled at baseline, 25 and 40 min after bathing, and infant and maternal behavior was rated. Results did not indicate effects of SSC on infant behavioral and cortisol reactivity to the bathing session. Similarly, no effect of SSC was found on maternal caregiving behavior and mother-infant adrenocortical synchrony. In conclusion, the findings provide no evidence that daily mother-infant SSC is associated with full-term infants' behavioral and adrenocortical stress reactivity or mother-infant interaction quality. Future studies should replicate these findings and unveil other potential mechanisms underlying beneficial effects of SSC.

Skin-to-skin SDF positioning: The key to intersubjective intimacy between mother and very preterm newborn-A pilot matched-pair case-control study

Background

Skin-to-skin contact (SSC) has been widely studied in NICU and several meta-analyses have looked at its benefits, for both the baby and the parent. However, very few studies have investigated SSC' benefits for communication, in particular in the very-preterm newborn immediately after birth.

Aims

To investigate the immediate benefits of Supported Diagonal Flexion (SDF) positioning during SSC on the quality of mother-very-preterm newborn communication and to examine the coordination of the timing of communicative behaviors, just a few days after birth.

Subjects and study design

Monocentric prospective matched-pair case-control study. Thirty-four mothers and their very preterm infants (27 to 31 + 6 weeks GA, mean age at birth: 30 weeks GA) were assigned to one of the two SSC positioning, either the Vertical Control positioning (n = 17) or the SDF Intervention positioning (n = 17). Mother and newborn were filmed during the first 5 min of their first SSC.

Outcome measures

Infants' states of consciousness according to the Assessment of Preterm Infants' Behavior scale (APIB). Onset and duration of newborns' and mothers' vocalizations and their temporal proximity within a 1-s time-window.

Results

In comparison with the Vertical group, very preterm newborns in the SDF Intervention Group spent less time in a drowsy state and more in deep sleep. At 3.5 days of life, newborns' vocal production in SSC did not differ significantly between the two groups. Mothers offered a denser vocal envelope in the SDF group than in the Vertical group and their vocalizations were on average significantly longer. Moreover, in a one-second time-frame, temporal proximity of mother-very preterm newborn behaviors was greater in the SDF Intervention Group.

Conclusion

Although conducted on a limited number of dyads, our study shows that SDF positioning fosters mother-very preterm newborn intimate encounter during the very first skin to skin contact after delivery. Our pioneer data sheds light on the way a mother and her very preterm vocally meet, and constitutes a pilot step in the exploration of innate intersubjectivity in the context of very preterm birth.

Is maternal negative affectivity related to psychosocial behavior of preterm and term-born toddlers through mother–child interaction?

Introduction

Children born moderately to late preterm (MLP) are more prone to psychosocial difficulties than their term-born counterparts. Maternal negative affectivity (NA)–a relatively stable personality trait characterized by the tendency to experience negative thoughts, feelings and emotions–has been related to more psychosocial problems in their offspring, and to a lower quality of mother–child interactions. As MLP children seem more sensitive to their early caregiving environment, they might be more affected by maternal NA and interaction style than their term-born peers. The current study investigated whether maternal NA predicted child’s psychosocial outcomes through quality of mother–child interaction, and if these associations differed between MLP and term-born children.

Methods

The sample consisted of 108 MLP and 92 term-born children and their mothers. At 18 months corrected age, maternal NA was measured using a self-report questionnaire and mother–child interaction was observed during two structured tasks. Five subscales of mother–child interaction were assessed: negative interaction, reciprocal engagement, emotional support, maternal stimulation and mother-led interaction. At 24 months corrected age, social–emotional difficulties, internalizing, and externalizing problems were assessed using mother-report.

Results

For MLP children, maternal NA directly, positively, predicted social–emotional difficulties (b = 0.57) and internalizing problems (b = 0.45), but no mediation effect of mother–child interaction was found. For term-born children, no direct effect but a mediation effect of mother-led interaction was found. Higher levels of maternal NA predicted less mother-led interaction which in turn predicted more problems. Birth status did not moderate any of the relationships, showing that the differences in patterns of effects found within the MLP and term-born group did not reach statistical significance.

Discussion

Maternal NA was found to be a risk factor for psychosocial outcomes in toddlers, either directly for MLP children or indirectly through mother-led interaction for term-born children. These findings suggest that the process through which maternal NA affects psychosocial outcomes may be different for MLP and term-born children. However, as the examined moderation effects of birth status did not reach statistical significance, more research using larger sample sizes is needed to study mother–child interaction in greater detail.

An integrative perspective on the role of touch in the development of intersubjectivity

Touch concerns a fundamental component of sociality. In this review, we examine the hypothesis that somatomotor development constitutes a crucial psychophysiological element in the ontogeny of intersubjectivity. An interdisciplinary perspective is provided on how the communication channel of touch contributes to the sense of self and extends to the social self. During gestation, the transformation of random movements into organized sequences of actions with sensory consequences parallels the development of the brain's functional architecture. Brain subsystems shaped by the coordinated activity of somatomotor circuits to support these first body-environment interactions are the first brain functional arrangements to develop. We propose that tactile self-referring behaviour during gestation constitutes a prototypic mode of interpersonal exchange that supports the subsequent development of intersubjective exchange. The reviewed research suggests that touch constitutes a pivotal bodily experience that in early stages builds and later filters self-other interactions. This view is corroborated by the fact that aberrant social-affective touch experiences appear fundamentally associated with attachment anomalies, interpersonal trauma, and personality disorders. Given the centrality of touch for the development of intersubjectivity and for psychopathological conditions in the social domain, dedicated research is urged to elucidate the role of touch in the evolution of subjective self-other coding.

The nested hierarchy of self and its trauma: In search for a synchronic dynamic and topographical re-organization

The sense of self has always been a topic of high interest in both psychoanalysis and most recently in neuroscience. Nowadays, there is an agreement in psychoanalysis that the self emerges from the relationship with the other (e.g., the caregiver) in terms of his/her capacity to attune, regulate, and synchronize with the emergent self of the infant. The outcome of this relational/intersubjective synchronization is the development of the sense of self and its regulatory processes both in dynamic psychology and neuroscience. In this work, we propose that synchrony is a fundamental biobehavioral factor in these dialectical processes between self and others which shapes the brain-body-mind system of the individuals, including their sense of self. Recently in neuroscience, it has been proposed by the research group around Northoff that the self is constituted by a brain-based nested hierarchical three-layer structure, including interoceptive, proprio-exteroceptive, and mental layers of self. This may be disrupted, though, when traumatic experiences occur. Following the three levels of trauma theorized by Mucci, we here suggest how different levels of traumatic experiences might have an enduring effect in yielding a trauma-based topographic and dynamic re-organization of the nested model of self featured by dissociation. In conclusion, we propose that different levels and degrees of traumatic experience are related to corresponding disruptions in the topography and dynamic of the brain-based three-layer hierarchical structure of the self.

Sensory stimulation program improves developments of preterm infants in Southwest China: A randomized controlled trial

Preterm infants are prone to growth and developmental delay, especially social-emotional development. Sensory stimulation may benefit developmental outcomes for these vulnerable infants. This study aims to determine whether 5-integrated sensory stimulation (5-ISS) improves preterm infant social-emotional development. A randomized, parallel trial was conducted from November 2018 to January 2020 at three tertiary hospitals in Kunming, China. Preterm infants were eligible if gestational ages were from 28 to 36 weeks based on ultrasound results when discharged from neonatal wards. Two hundred preterm infants (male n = 110, female n = 90) were randomly allocated to the 5-ISS intervention group (n = 98) and the standard care group (n = 102). Social-emotional development was assessed with the Ages and Stages Questionnaires: Social-Emotional (ASQ:SE). Temperament was assessed with the Infant Behavior Questionnaire-Revised. Anthropometry, which included weight, length, and head circumference, was measured at corrected ages of 1, 3, and 6 months. Demographic and clinical characteristics were similar between the intervention and the standard care groups. At 1- and 3-month corrected age, no significant differences between the two groups were observed in terms of infant development and temperament. At 6 months, significant disparities were found in the social-emotional development scale (mean difference −0.29, 95% CI: −0.58, < -0.001, p = 0.01), infant length (mean difference 0.70, 95% CI: < 0.001, 1.4, p = 0.03), distress to limitation (p = 0.04), and sadness (p = 0.03). A mixed model revealed that the 5-ISS intervention positively affected social-emotional development, length, distress to limitation, and sadness for preterm infants. Integrated sensory stimulation has benefits on social-emotional development, temperament, and length for preterm infants. This program provides a feasible method to promote social-emotional development for preterm infants.

Use of a Quality Scorecard to Enhance Quality and Safety in Community Hospital Newborn Nurseries

OBJECTIVE

To implement a quality improvement (QI) scorecard as a tool for enhancing quality and safety efforts in level 1 and 2 community hospital nurseries affiliated with Nationwide Children's Hospital.

STUDY DESIGN

A QI scorecard was developed for data collection, analytics, and reporting of neonatal quality metrics and cross-sector collaboration. Newborn characteristics were included for risk stratification, as were clinical and process measures associated with neonatal morbidity and mortality. Quality and safety activities took place in community hospital newborn nurseries in Ohio, and education was provided in both online and in-person collaborations, followed by local team sessions at partner institutions. Baseline (first 12 months) and postbaseline comparisons of clinical and process measures were analyzed by logistic regression, adjusting for potential confounders.

RESULTS

In logistic regression models, at least 1 center documented improvements in each of the 4 process measures, and 3 of the 4 centers documented improvements in compliance with glucose checks obtained within 90 minutes of birth among at-risk infants.

CONCLUSION

Collaborative QI projects led to improvements in perinatal metrics associated with important outcomes. Formation of a center-driven QI scorecard is feasible and provides community hospitals with a framework for collecting, analyzing, and reporting neonatal QI metrics.

Daily mother-infant skin-to-skin contact and maternal mental health and postpartum healing: a randomized controlled trial

This randomized controlled trial examined the effects of a daily hour of mother-infant skin-to-skin contact (SSC) during the first five postnatal weeks, compared to care-as-usual, on maternal depressive (primary outcome), anxiety, stress, fatigue, pain, and delivery-related post-traumatic stress symptoms (PTSS). Prenatal symptom severity and touch discomfort were examined as moderators. Mothers and full-term infants were randomly allocated to SSC or care-as-usual conditions and followed during the first postnatal year. For the total group (intention-to-treat analyses), care-as-usual mothers showed an increase of anxiety symptoms from week 2 to 12, while SSC mothers displayed a stability of anxiety symptoms. Also, care-as-usual mothers showed an initial decrease in fatigue followed by an increase, while SSC mothers showed a decrease from week 2 to 12. In per-protocol analyses, including only the SSC dyads who adhered to SSC guidelines, findings on anxiety, but not fatigue, were replicated. No SSC effects were found for depressive, stress, and pain symptoms. No moderator, dose-response, or 52-week follow-up effects were found. PTSS were low with little variation; consequently, analyses were discontinued. Daily SSC in healthy mother-infant dyads may reduce anxiety and fatigue symptoms, but not depressive, stress, and pain symptoms, during the early postpartum period. Replication studies are recommended.

Exceeding expectations after perinatal risks for poor development: associations in term- and preterm-born preschoolers

OBJECTIVE

To define parenting/social characteristics associated with better-than-expected cognitive and motor outcomes in preschoolers at similar perinatal biological risk-level including various gestational ages at birth (GA) and perinatal complications.

STUDY DESIGN

Prospective cohort study (n = 87) of children at four years, median GA 29 weeks (IQR 26, 38). Assessments included Differential Ability Scales, Movement Assessment Battery, parenting styles, and social risk scores. Perinatal risk factors were weighted based on regression models for each outcome; individual calculated risk scores became predictors to extract standardized residuals from the mean (>1 SD above mean = better-than-expected). Mixed-effect regressions examined associations between positive adaptation and parenting/social factors.

RESULT

Perinatal risk scores explained 21-53% outcome variability. Children across all GA displayed positive adaptation. Children of parents with higher authoritarian scores had higher odds of better-than-expected outcomes (OR 1.17, p = 0.0002).

CONCLUSION

Parental structure may promote positive adaptation at preschool age in children with perinatal risk factors for poor development, including extreme prematurity.

Bio-behavioral synchrony is a potential mechanism for mate selection in humans

The decision with whom to form a romantic bond is of great importance, yet the biological or behavioral mechanisms underlying this selective process in humans are largely unknown. Classic evolutionary theories of mate selection emphasize immediate and static features such as physical appearance and fertility. However, they do not explain how initial attraction temporally unfolds during an interaction, nor account for mutual physiological or behavioral adaptations that take place when two people become attracted. Instead, recent theories on social bonding emphasize the importance of co-regulation during social interactions (i.e., the social coordination of physiology and behavior between partners), and predict that co-regulation plays a role in bonding with others. In a speed-date experiment of forty-six heterosexual dates, we recorded the naturally occurring patterns of electrodermal activity and behavioral motion in men and women, and calculated their co-regulation during the date. We demonstrate that co-regulation of behavior and physiology is associated with the date outcome: when a man and a woman synchronize their electrodermal activity and dynamically tune their behavior to one another, they are more likely to be romantically and sexually attracted to one another. This study supports the hypothesis that co-regulation of sympathetic and behavioral rhythms between a man and a woman serves as a mechanism that promotes attraction.

Association between early onset of skin-to-skin contact and mother-infant interaction at hospital discharge and six months of corrected age among preterm infants

OBJECTIVE

To compare mother-infant interaction between hospital discharge and at six months of corrected age of infants born ≤32 weeks and investigate the association between the onset of skin-to-skin contact and the difference in mother-infant interaction between discharge and six months of corrected age (CA) among preterm infants.

MATERIAL AND METHODS

Prospective observational study, in which 72 mother-infant dyads were evaluated. Preterm newborns (born with gestational age ≤ 32 weeks of gestational age) from two public maternity hospitals were assessed by means of video macro analysis of the mother-infant interaction according to the parameters adopted by the Mother-Baby Observation Protocol 0-6 (POIMB), at hospital discharge and at six months of corrected gestational age. Such variables as socioeconomic conditions, depression and maternal anxiety were controlled. Multivariate model was built.

RESULTS

Onset skin-to-skin contact within three days of life increased by 1.30 points for the best interactive infant behavior at discharge for the six months of CA. In addition, in relation to the tuning of the mother-infant dyad, the initiation of skin-to-skin contact at 20 days of life reduced 1.0 point significantly. Multiparous mothers or those exposed to cigarette smoke performed worse in the development of the dyad.

CONCLUSION

The preterm newborn should initiate skin-to-skin contact early and, whenever possible, by the third day of life to favor mother-infant interaction.

Spontaneous movements, motor milestones, and temperament of preterm-born infants: Associations with mother-infant attunement

Preterm-born infants and their mothers are at higher risk of showing less attuned interactions. We sought to identify characteristics of preterm-born infants associated with the attunement of mother-infant interactions at the corrected ages of 3-4 months, looking specifically at motor behaviors. We focused on infants' spontaneous movements, achievement of motor milestones, and temperament, which at this young age is often manifested via movement. Sixty preterm-born infants (Mdn_{gestation age in weeks}  = 33, 57.38% male, corrected age Mdn = 14 weeks, interquartile range = 13-16) and their mothers participated. Independent observers rated mother-infant attunement, infants' spontaneous movements, and infants' achievement of motor milestones. Mothers reported infant temperament. We found infants' smooth and fluent movement character and continual fidgety movements were associated with better attunement in terms of higher maternal sensitivity and non-intrusiveness and higher infant responsiveness and involvement. Unexpectedly, infants' achievement of motor milestones was not significantly associated with mother-infant attunement, and maternal reports of infants' higher soothability were associated with lower maternal sensitivity. The study illustrates the value of including the assessment of infants' spontaneous movements, designed for early detection of neurological deficiencies, in research and in clinical practice with parents and preterm-born infants.

Kangaroo mother care and skin-to-skin care in preterm infants in the neonatal intensive care unit: A bibliometric analysis

BACKGROUND

The desire to understand and the growing interest in research on the effects of kangaroo mother care in preterm infants in the neonatal intensive care unit have led to a significant increase in the number of manuscripts published in this field over the past decade. It is therefore necessary to regularly review the state of knowledge on this phenomenon in order to identify progress and constraints, to stimulate reflection, and to encourage progress in future research.

PURPOSE

The aim of this study was to determine the current state of scientific production in relation to kangaroo mother care in preterm infants in the neonatal intensive care unit through bibliometric analysis.

DATA SOURCES

This study presents a review of 212 published papers from the Scopus database (1990-2019).

DATA EXTRACTION

Two processing software applications were used: VOSviewer and SciMAT. In addition, through a keyword analysis, this study established the hot spot research trends to be developed in future work. The study adhered to the PRISMA-ScR guidelines for quality improvement studies as part of the EQUATOR network.

RESULTS

Our results show that research in this field is going through a time of high productivity and we could sort this growing body of work into different periods, highlighting the most important topics.The analysis shows that most research in this field is focused on five motor topics. These are: prematurity, male, psychology, intensive care neonatal, and major clinical study. The analysis also allowed us to identify four basic and cross-disciplinary topics that need to be developed and that emerge as future research directions: preterm infants, child-parent relations, child development, and skin-to-skin contact.

IMPLICATIONS FOR PRACTICE AND RESEARCH

The main contribution of this work is the creation of a knowledge map on the research in this field. This article provides information on how we can shape the future to provide optimal care for these infants and their parents.

Child maltreatment severity and sleep variability predict mother–infant RSA coregulation

Regulatory processes underlie mother-infant interactions and may be disrupted in adverse caregiving environments. Child maltreatment and sleep variability may reflect high-risk caregiving, but it is unknown whether they confer vulnerability for poorer mother–infant parasympathetic coordination. The aim of this study was to examine mother–infant coregulation of respiratory sinus arrhythmia (RSA) in relation to child maltreatment severity and night-to-night sleep variability in 47 low-income mother–infant dyads. Maternal and infant sleep was assessed with actigraphy and daily diaries for 7 nights followed by a mother–infant still-face procedure during which RSA was measured. Higher maltreatment severity was associated with weakened concordance in RSA coregulation related to the coupling of higher mother RSA with lower infant RSA, suggesting greater infant distress and lower maternal support. In addition, higher infant sleep variability was associated with infants’ lower mean RSA and concordance in lagged RSA coregulation such that lower maternal RSA predicted lower infant RSA across the still-face procedure, suggesting interrelated distress. The findings indicate that adverse caregiving environments differentially impact regulatory patterns in mother–infant dyads, which may inform modifiable health-risk behaviors as targets for future intervention.

Fears, Reassurance, and Milestones: A Twitter Analysis around World Prematurity Day during the COVID-19 Pandemic

Preterm birth (birth <37 completed weeks’ gestation) is common, affecting 10.6% of live births globally (nearly 15 million babies per year). Having a new baby admitted to a neonatal unit often triggers stress and anxiety for parents. This paper seeks to explore experiences of preterm birth via Twitter. The intermingling of COVID-19 restrictions and World Prematurity Day allows for an understanding of both the additional stresses incurred as a consequence of the pandemic and the more “everyday” experiences in the NICU and beyond. The content analysis of the data included 3161 tweets. Three themes were identified: 1. COVID-19 was not the only trauma; 2. Raising awareness, especially World Prematurity Day; and, 3. Baby milestones. These themes highlight the multi-level challenges faced by parents of premature babies and the healthcare professionals involved in their care. The COVID-19 pandemic and the consequent restrictions imposed on parents’ contact with their babies have resulted in immense emotional strain for families. The reported COVID-19 pandemic “baby blind spot” appears to particularly impact this group of babies. Improved understanding of the lived experiences of preterm babies and their families should inform greater awareness and improved support.

Multimodal Interaction between a Mother and Her Twin Preterm Infants (Male and Female) in Maternal Speech and Humming during Kangaroo Care: A Microanalytical Case Study

The literature reports the benefits of multimodal interaction with the maternal voice for preterm dyads in kangaroo care. Little is known about multimodal interaction and vocal modulation between preterm mother–twin dyads. This study aims to deepen the knowledge about multimodal interaction (maternal touch, mother’s and infants’ vocalizations and infants’ gaze) between a mother and her twin preterm infants (twin 1 [female] and twin 2 [male]) during speech and humming in kangaroo care. A microanalytical case study was carried out using ELAN, PRAAT, and MAXQDA software (Version R20.4.0). Descriptive and comparative analysis was performed using SPSS software (Version V27). We observed: (1) significantly longer humming phrases to twin 2 than to twin 1 (p = 0.002), (2) significantly longer instances of maternal touch in humming than in speech to twin 1 (p = 0.000), (3) a significant increase in the pitch of maternal speech after twin 2 gazed (p = 0.002), and (4) a significant increase of pitch in humming after twin 1 vocalized (p = 0.026). This exploratory study contributes to questioning the role of maternal touch during humming in kangaroo care, as well as the mediating role of the infant’s gender and visual and vocal behavior in the tonal change of humming or speech.