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ObjectiveTo evaluate serum creatinine (SCr) patterns and the development of acute kidney injury (AKI), as potential biomarkers of necrotizing enterocolitis (NEC).Study designRetrospective chart review of preterm infants with and without NEC born 23–32 weeks gestation admitted to Nationwide Children’s Hospital NICU. Medical versus surgical NEC was determined by radiographic and clinical findings. Available inpatient SCr levels obtained on days 8 through 365 were included.ResultIn this cohort, 77 NEC and a randomly selected group of 82 non-NEC infants met inclusion criteria. Fifteen of the 70 (21.4%) with NEC met criteria for AKI versus 0 of 43 (0.0%) without NEC. One of the 13 with AKI had AKI within 7 days prior to NEC diagnosis (7.7%).ConclusionAKI is more prevalent in infants with NEC. The temporal association between AKI and NEC could not be evaluated due to inconsistent SCr surveillance and should be evaluated in future studies.

ObjectiveTo describe three different standardized approaches to improving neonatal acute kidney injury (AKI) identification and the impact on AKI identification, incidence, and nephrology consultation and referral.Study designA retrospective cohort study in three academic NICUs. We compared AKI identification, AKI incidence, nephrology consultation, and nephrology follow-up before and after implantation of local protocols to standardize neonatal AKI identification.ResultNeonatal AKI identification improved in all three NICUs following protocol implementation (26–85%, P < 0.0001). Each center also saw increases in nephrology consultation (15–83%, P < 0.0001) and nephrology follow-up (7–73%, P < 0.0001). AKI incidence decreased significantly (21–12%, P < 0.0001).ConclusionMultiple strategies can be successfully operationalized to improve neonatal AKI identification. While different in approach, each strategy resulted in increased AKI identification and nephrology involvement. This study emphasizes the importance of local standardized approaches to AKI to improve AKI identification and nephrology involvement in the NICU.

ObjectiveMeasure the effectiveness of and preference for a standardized, national curriculum utilizing flipped classrooms (FC) in neonatal-perinatal medicine (NPM) fellowships.Study designMulticentered equivalence, cluster randomized controlled trial of NPM fellowship programs randomized to receive standardized physiology education as in-class lectures (traditional didactic, TD arm) or as pre-class online videos followed by in-class discussions (FC arm). Four multiple-choice question quizzes and three surveys were administered to measure knowledge acquisition, retention, and educational preferences.Results530 fellows from 61 NPM fellowships participated. Quiz performance was comparable between groups at all time points (p = NS, TD vs FC at 4 time points). Post intervention, more fellows in both groups preferred group discussions (pre/post FC 42% vs. 58%, P = 0.002; pre/post TD 43% vs. 60%, P = < 0.001). FC fellows were more likely to rate classroom effectiveness positively (FC/TD, 70% vs. 36%, P < 0.001).ConclusionsFCs promote knowledge acquisition and retention equivalent to TD and FC modalities are preferred by fellows.

A recent shift in public attention to racism, racial disparities, and health equity have resulted in an abundance of calls for relevant papers and publications in academic journals. Peer-review for such articles may be susceptible to bias, as subject matter expertise in the evaluation of social constructs, like race, is variable. From the perspective of researchers focused on neonatal health equity, we share our positive and negative experiences in peer-review, provide relevant publicly available data regarding addressing bias in peer-review from 12 neonatology-focused journals, and give recommendations to address bias and knowledge gaps in the peer review process of health equity research.

ObjectiveTo explore interest, feasibility, perceived effectiveness, and acceptability of a standardized, national physiology curriculum for neonatal–perinatal medicine (NPM) fellows using online videos for knowledge acquisition paired with flipped classrooms (FCs) for knowledge application.Study designTwo educational programs pairing online videos with FCs were developed and peer-reviewed. These programs were piloted at five institutions. Fellows completed surveys, and fellows and educators participated in focus groups after their FC experiences.ResultsThirty-five fellows responded to the survey. Forty-one fellows and six educators participated in focus groups. Fellows and educators preferred online videos paired with FCs over didactic teaching and perceived them to be effective for knowledge acquisition and application.ConclusionFellows and educators preferred FC learning over traditional didactics and reported that FCs facilitated creation of a learning community, fostering active learning. The favorable response toward this pilot project and the feasibility of its use supports further development of a standardized NPM physiology curriculum for fellowship training.

ObjectiveDespite longstanding and recurrent calls for effective implicit bias (IB) education in health professions education as one mechanism to reduce ongoing racism and health disparities, such curricula for neonatal-perinatal medicine (NPM) are limited. We aim to determine the key curricular elements for educating NPM fellows, advanced practice providers, and attending physicians in the critical topics of IB and health disparities.Study designA modified Delphi study was performed with content experts in IB and health disparities who had educational relationships to those working and training in the neonatal intensive care unit.ResultThree Delphi rounds were conducted from May to November 2021. Experts reached consensus on a variety of items for inclusion in the curriculum, including educational goals, learning objectives, teaching strategies, and educator principles.ConclusionEssential curricular components of an IB and health disparities curriculum for neonatal medicine were defined using rigorous consensus building methodology.

Background Bicuspid aortic valve (BAV) is the most common type of congenital heart disease with a population prevalence of 1-2%. While BAV is known to be highly heritable, mutations in single genes (such as GATA5 and NOTCH1 ) have been reported in few human BAV cases. Traditional gene sequencing methods are time and labor intensive, while next-generation high throughput sequencing remains costly for large patient cohorts and requires extensive bioinformatics processing. Here we describe an approach to targeted multi-gene sequencing with combinatorial pooling of samples from BAV patients. Methods We studied a previously described cohort of 78 unrelated subjects with echocardiogram-identified BAV. Subjects were identified as having isolated BAV or BAV associated with coarctation of aorta (BAV-CoA). BAV cusp fusion morphology was defined as right-left cusp fusion, right non-coronary cusp fusion, or left non-coronary cusp fusion. Samples were combined into 19 pools using a uniquely overlapping combinatorial design; a given mutation could be attributed to a single individual on the basis of which pools contained the mutation. A custom gene capture of 97 candidate genes was sequenced on the Illumina HiSeq 2000. Multistep bioinformatics processing was performed for base calling, variant identification, and in-silico analysis of putative disease-causing variants. Results Targeted capture identified 42 rare, non-synonymous, exonic variants involving 35 of the 97 candidate genes. Among these variants, in-silico analysis classified 33 of these variants as putative disease-causing changes. Sanger sequencing confirmed thirty-one of these variants, found among 16 individuals. There were no significant differences in variant burden among BAV fusion phenotypes or isolated BAV versus BAV-CoA. Pathway analysis suggests a role for the WNT signaling pathway in human BAV. Conclusion We successfully developed a pooling and targeted capture strategy that enabled rapid and cost effective next generation sequencing of target genes in a large patient cohort. This approach identified a large number of putative disease-causing variants in a cohort of patients with BAV, including variants in 26 genes not previously associated with human BAV. The data suggest that BAV heritability is complex and polygenic. Our pooling approach saved over $39,350 compared to an unpooled, targeted capture sequencing strategy.

A successful Neonatal–Perinatal Medicine fellowship (NPM-F) program requires presence and insight of national and institutional supervisory organizations as well as effective program-specific leaders: program director (PD), associate program director (APD), program coordinator (PC), and core faculty. It is becoming more common for PDs and APDs to have advanced training in medical education and conduct medical education research. While NPM-F program leaders benefit from a strong national NPM educator community, they face challenges of increased regulatory burden and unclear national guidelines with variable local interpretation for protected time. National and local organizations can support program leaders and promote their academic success while reducing burnout and turnover by providing leadership training, academic mentoring, and adequate protected time for research and program-specific tasks.

BackgroundIn sick neonates admitted to the NICU, improper fluid balance can lead to fluid overload. We report the impact of fluid balance in the first postnatal week on outcomes in critically ill near-term/term neonates.MethodsThis analysis includes infants ≥36 weeks gestational age from the Assessment of Worldwide Acute Kidney injury Epidemiology in Neonates (AWAKEN) study (N = 645). Fluid balance: percent weight change from birthweight. Primary outcome: mechanical ventilation (MV) on postnatal day 7.ResultsThe median peak fluid balance was 1.0% (IQR: −0.5, 4.6) and occurred on postnatal day 3 (IQR: 1, 5). Nine percent required MV at postnatal day 7. Multivariable models showed the peak fluid balance (aOR 1.12, 95%CI 1.08–1.17), lowest fluid balance in 1st postnatal week (aOR 1.14, 95%CI 1.07–1.22), fluid balance on postnatal day 7 (aOR 1.12, 95%CI 1.07–1.17), and negative fluid balance at postnatal day 7 (aOR 0.3, 95%CI 0.16–0.67) were independently associated with MV on postnatal day 7.ConclusionsWe describe the impact of fluid balance in critically ill near-term/term neonates over the first postnatal week. Higher peak fluid balance during the first postnatal week and higher fluid balance on postnatal day 7 were independently associated with MV at postnatal day 7.

Physicians who identify as Black, Latinx, American Indian, Pacific Islander, and certain Asian subgroups represent racial and ethnic populations that are underrepresented in medicine (URM). While the proportion of URM pediatric trainees has remained unchanged, that of Neonatal-Perinatal Medicine (NPM) fellows has decreased. Informed by the medical literature and our lived experiences, we compiled and developed a list of recommendations to support NPM fellowship programs in the recruitment, retention, and promotion of URM trainees. We describe ten recommendations that address 1) creating a culture of inclusivity and psychological safety, 2) the critical appraisal of recruitment practices and climate, and 3) an inclusive and holistic fellowship application process. The first two themes lay the foundation, while the final theme spotlights our recommendations for URM recruitment. Each recommendation is a step towards improvement in recruitment and inclusion at a program.