Maria E. Barnes-Davis

Objective: To evaluate the association between hypertensive disorders of pregnancy (HDP) and neurodevelopmental outcomes in extremely preterm (EPT) infants and determine whether fetal growth mediates this relationship. Study Design: Retrospective multicenter cohort study of infants born at 22 0⁄7–26 6⁄7 weeks’ gestation within the NICHD Neonatal Research Network (2012–2019). HDP was defined as maternal hypertension before/during pregnancy. Primary outcome was Bayley-3 cognitive composite score at 22–26 months corrected age; secondary outcomes included language, motor, and composite death/neurodevelopmental impairment (NDI). Multivariable regression adjusted for maternal, perinatal, and socioeconomic confounders. Mediation analyses evaluated mediating role of birth weight Z-scores and gestational age. Results: Among 4,712 infants, 1,178 (25%) were HDP-exposed. HDP exposure was associated with lower cognitive, language, and motor scores, and higher odds of death/NDI. Birth weight Z-scores mediated ~65% of this relationship. Conclusions: HDP exposure was associated with adverse neurodevelopment in EPT infants, largely mediated through impaired fetal growth.

Preterm birth is associated with increased risk for communication difficulties, yet early neural markers of later outcomes remain poorly understood. This study examined associations between structural and functional brain connectivity in infancy and communication skills at 24to 30 months in children born very preterm (≤32 weeks gestation). Participants (n = 180) MRI at term-equivalent age during natural sleep. Resting-state functional and diffusion data were used to derive structural and functional connectivity across regions implicated in communication. At follow-up, communication outcomes were assessed using Communication and Symbolic Behavior Scales (CSBS), which captures verbal, gestural, social-affective, and symbolic communication skills. We analyzed 22×22 functional and structural connectomes among selected ROIs, using a LASSO regression approach to identify connectivity associated with CSBS scores adjusting for demographic and medical covariates. Significant relationships were observed between both functional and structural connectivity and communication skills, differing by domain. Functional connectivity between left and right temporal regions was positively associated with overall communication scores, whereas several structural connections involving cortical, cerebellar, and subcortical regions showed negative associations. Distinct connectivity patterns were also associated with gestural, verbal, social-affective, and symbolic communication skills. These findings demonstrate that variability in early brain connectivity is associated with later communication outcomes in children born very preterm. We found both significant positive and negative associations after adjusting for relevant covariates; these patterns potentially reflect compensatory or atypical network organization. These results highlight the value of multimodal neuroimaging in identifying early neural correlates of communication in this high-risk population. Highlights: Early structural and functional brain connectivity is associated with communication outcomes at 2–3 years in children born very preterm. Distinct patterns of connectivity relate differently to verbal, gestural, social-affective, and symbolic communication skills. Both positive and negative connectivity–behavior relationships suggest complex and potentially compensatory neural developmental pathways. Multimodal neuroimaging may provide early biomarkers to support identification and intervention for communication risk in preterm populations.

We previously reported interhemispheric structural hyperconnectivity bypassing the corpus callosum in children born extremely preterm (n = 95). We use higher-order diffusion modelling to assess the degree to which extracallosal pathways are present in extremely preterm infants and predictive of later language scores at 22–26 months corrected age. We compare results obtained from two higher-order diffusion models: generalized q-sampling imaging and constrained spherical deconvolution. Advanced MRI was obtained at term equivalent age (39–44 weeks post-menstrual age). For structural connectometry analysis, we assessed the level of correlation between white matter connectivity at the whole-brain level at term equivalent age and language scores at 2 years corrected age, controlling for post-menstrual age, sex, brain abnormality score and social risk. For our constrained spherical deconvolution analyses, we performed connectivity-based fixel enhancement, using probabilistic tractography to inform statistical testing of the hypothesis that fibre metrics at term equivalent age relate to language scores at 2 years corrected age after adjusting for covariates. Ninety-five infants were extremely preterm with no significant brain injury. Of these, 53 had complete neurodevelopmental and imaging data sets that passed quality control. In the connectometry analyses adjusted for covariates and multiple comparisons (P < 0.05), the following tracks were inversely correlated with language: bilateral cerebellar white matter and middle cerebellar peduncles, bilateral corticospinal tracks, posterior commissure and the posterior inferior fronto-occipital fasciculus. No tracks from the constrained spherical deconvolution/connectivity-based fixel enhancement analyses remained significant after correction for multiple comparisons. Our findings provide critical information about the ontogeny of structural brain networks supporting language in extremely preterm children. Greater connectivity in more posterior tracks that include the cerebellum and connections to the regions of the temporal lobes at term equivalent age appears to be disadvantageous for language development.

Objective To increase compliance with standardized safe sleep recommendations for patients in a cohort of regional level III/IV neonatal intensive care units (NICUs) in accordance with recently revised guidelines issued by the American Academy of Pediatrics (AAP). Study design A regional quality improvement (QI) initiative led by a multidisciplinary task force standardized safe sleep criteria across participating NICU sites. Universal and unit-specific interventions were implemented via Plan-Do-Study-Act (PDSA) cycles with evaluation of compliance through routine crib audits, run chart completion, and Pareto chart analysis. Results Following QI implementation, compliance with safe sleep guidelines for eligible NICU infants improved from 34% to 90% from October 2019 through September 2022. Conclusion Compliance with early, consistent modeling of safe sleep practices nearly tripled in this cohort of regional NICUs. A standardized, timely approach to safe sleep transition demonstrated dramatic and sustained improvement in the practice and modeling of safe sleep behaviors in the NICU.

Growth in preterm infants in the neonatal intensive care unit (NICU) is associated with increased global and regional brain volumes at term, and increased postnatal linear growth is associated with higher language scores at age 2. It is unknown whether these relationships persist to school age or if an association between growth and cortical metrics exists. Using regression analyses, we investigated relationships between the growth of 42 children born extremely preterm (< 28 weeks gestation) from their NICU hospitalization, standardized neurodevelopmental/language assessments at 2 and 4–6 years, and multiple neuroimaging biomarkers obtained from T1-weighted images at 4–6 years. We found length at birth and 36 weeks post-menstrual age had positive associations with language scores at 2 years in multivariable linear regression. No growth metric correlated with 4–6 year assessments. Weight and head circumference at 36 weeks post-menstrual age positively correlated with total brain volume and negatively with global cortical thickness at 4–6 years of age. Head circumference relationships remained significant after adjusting for age, sex, and socioeconomic status. Right temporal cortical thickness was related to receptive language at 4–6 years in the multivariable model. Results suggest growth in the NICU may have lasting effects on brain development in extremely preterm children.

The Supreme Court ruling in Dobbs v. Jackson Women’s Health Organization has far-reaching implications that go beyond the practice of obstetrics and gynecology. The ruling and subsequent laws and bills impact many specialties and have implications for healthcare as a whole. The rapidly changing medicolegal landscape has significant bearings on and implications for the fields of neonatology and pediatrics. These rulings have an impact on the patient-physician relationship and a shared decision-making approach to care. Furthermore, there are significant sequelae of forced birth and resuscitation. This review provides a clinically relevant update of the current medicolegal landscape and applications to the practice of neonatology.

Children born extremely preterm (n = 16) vs. term comparisons (TC, n = 28) and also compare this to structural connectivity in a group of extremely preterm children with a history of language delay or disorder (EPT-HLD, n = 8). All participants are 4–6 years of age. We perform q-space diffeomorphic reconstruction and functionally-constrained structural connectometry (based on fMRI activation), including a novel extension enabling between-groups comparisons with non-parametric ANOVA. There were no significant differences between groups in age, sex, race, ethnicity, parental education, family income, or language scores. For EPT, tracks positively associated with language scores included the bilateral posterior inferior fronto-occipital fasciculi and bilateral cerebellar peduncles and additional cerebellar white matter. Quantitative anisotropy in these pathways accounted for 55% of the variance in standardized language scores for the EPT group specifically. Future work will expand this cohort and follow longitudinally to investigate the impact of environmental factors on developing language networks and resiliency in the preterm brain.

Diprosopus is an extremely rare congenital anomaly involving craniofacial duplication. The etiology and pathophysiology remain unknown, and no genetic mutations have been definitively associated with the condition. This case describes an infant born at 27‐weeks completed gestation with multiple congenital anomalies including diprosopus and discusses the implications of prenatal diagnosis.

Extreme prematurity (EPT, <28 weeks gestation) is associated with language problems. We previously reported hyperconnectivity in EPT children versus term children (TC) using magnetoencephalography (MEG). Here, we aim to ascertain whether functional hyperconnectivity is a marker of language resiliency for EPT children, validating our earlier work with a distinct sample of contemporary well-performing EPT and preterm children with history of language delay (EPT-HLD). A total of 58 children (17 EPT, 9 EPT-HLD, and 32 TC) participated in stories listening during MEG and functional magnetic resonance imaging (fMRI) at 4–6 years. We compared connectivity in EPT and EPT-HLD, investigating relationships with language over time. We measured fMRI activation during stories listening and parcellated the activation map to obtain “nodes” for MEG connectivity analysis. There were no significant group differences in age, sex, race, ethnicity, parental education, income, language scores, or language representation on fMRI. MEG functional connectivity (weighted phase lag index) was significantly different between groups. Preterm children had increased connectivity, replicating our earlier work. EPT and EPT-HLD had hyperconnectivity versus TC at 24–26 Hz, with EPT-HLD exhibiting greatest connectivity. Network strength correlated with change in standardized scores from 2 years to 4–6 years of age, suggesting hyperconnectivity is a marker of advancing language development.