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Background Continuous kidney replacement therapy (CKRT) is a mainstay of therapy for management of severe acute kidney injury (AKI) in critically ill pediatric patients. There is limited data on the risk of chronic kidney disease (CKD) after discharge in this population. Methods This is a single-center, retrospective cohort study of all pediatric patients ages 0-17 years who received CKRT from 2013 to 2017. The study excluded patients with pre-existing CKD, those who died prior to discharge, and those who had insufficient follow-up data. Patients were followed after hospital discharge and electronic health record data was collected and analyzed to assess for incidence of and risk factors for kidney sequelae. Results A total of 42 patients were followed at a median time of 27 months (IQR 17.2, 39.8). Of these, 26.2% had evidence of CKD and 19% were at risk for CKD. Lower eGFR at hospital discharge was associated with increased odds of kidney sequelae (aOR 0.985; 95% CI 0.972, 0.996). Ages 0- < 1 and 12-17 were not significantly different (aOR 0.235, 95% CI 0.024, 1.718) and had the highest incidence of kidney sequelae (50% and 77%, respectively). Ages 1-5 and 6-11 had a decreased odds of kidney sequelae compared to the 12-17 year age group (aOR 0.098; 95% CI 0.009, 0.703 and aOR 0.035; 95% CI 0.001, 0.39, respectively). Only 54.8% of patients (n = 23) were seen in the nephrology clinic after discharge. Conclusions Patients who receive CKRT for AKI have a significant risk of CKD, while follow-up with a pediatric nephrologist in these high-risk patients is sub-optimal. Graphical abstract A higher resolution version of the Graphical abstract is available as Supplementary information, Author(s): Jeanne Frisby-Zedan [sup.1] [sup.2] , Matthew F. Barhight [sup.1] [sup.2] , Mahima Keswani [sup.1] [sup.2] , Jennifer Arzu [sup.2] , Delphine Nelson [sup.1] [sup.2] Author Affiliations: (1) grid.413808.6, 0000 [...]

Background: Chronic graft failure (CGF) in pediatric heart transplant (PHT) is multifactorial and may present with findings of fibrosis and microvessel disease (MVD) on endomyocardial biopsy (EMB). There is no optimal CGF surveillance method. We evaluated associations between cardiac magnetic resonance imaging (CMR) and historical/EMB correlates of CGF to assess CMR's utility as a surveillance method. Methods: Retrospective analysis of PHT undergoing comprehensive CMR between September 2015 and January 2022 was performed. EMB within 6 months was graded for fibrosis (scale 0–5) and MVD (number of capillaries with stenotic wall thickening per field of view). Correlation analysis and logistic regression were performed. Results: Forty‐seven PHT with median age at CMR of 15.7 years (11.6, 19.3) and time from transplant of 6.4 years (4.1, 11.0) were studied. Cardiac allograft vasculopathy (CAV) was present in 11/44 (22.0%) and historical rejection in 14/41 (34.2%). CAV was associated with higher global T2 (49.0 vs. 47.0 ms; p = 0.038) and peak T2 (57.0 vs. 53.0 ms; p = 0.013) on CMR. Historical rejection was associated with higher global T2 (49.0 vs. 47.0 ms; p = 0.007) and peak T2 (57.0 vs. 53.0 ms; p = 0.03) as well as global extracellular volume (31.0 vs. 26.3%; p = 0.03). Higher fibrosis score on EMB correlated with smaller indexed left ventricular mass (rho = −0.34; p = 0.019) and greater degree of MVD with lower indexed left ventricular end‐diastolic volume (rho = −0.35; p = 0.017). Conclusion: Adverse ventricular remodeling and abnormal myocardial characteristics on CMR are present in PHT with CAV, historical rejection, as well as greater fibrosis and MVD on EMB. CMR has the potential use for screening of CGF. [ABSTRACT FROM AUTHOR]

Summary: Background: Cord blood (CB) leptin is positively associated with adiposity at birth, but the association with child adiposity is unclear. Objectives: We hypothesized that CB leptin is positively associated with adiposity in peripubertal children and with childhood leptin. Methods: Leptin was measured in 986 CB and 931 childhood stored samples from a prospective birth cohort. Adiposity measures were collected at birth and mean age 11.5 years. Linear and logistic regression analyses were used to evaluate associations between log‐transformed CB leptin and neonatal and childhood adiposity measures as continuous and categorical variables, respectively. Results: CB leptin was positively associated with neonatal and childhood adiposity. Childhood associations were attenuated when adjusted for maternal body mass index (BMI) and glucose, but remained statistically significant for childhood body fat percentage (β = 1.15%, confidence interval [CI] = 0.46–1.84), body fat mass (β = 0.69 kg, 95% CI = 0.16–1.23), sum of skin‐folds (β = 1.77 mm, 95% CI = 0.31–3.24), log‐transformed child serum leptin (β = 0.13, 95% CI = 0.06–0.20), overweight/obesity (OR = 1.21, 95% CI = 1.03–1.42), obesity (OR = 1.31, 95% CI = 1.04–1.66) and body fat percentage >85th percentile (OR = 1.38, 95% CI = 1.12–1.73). Positive associations between newborn adiposity measures and CB leptin confirmed previous reports. Conclusion: CB leptin is positively associated with neonatal and childhood adiposity and child leptin levels, independent of maternal BMI and maternal hyperglycemia. CB leptin may be a biomarker of future adiposity risk. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to establish the degree of variability in thresholds for discussing withdrawal of life-sustaining therapies (WLST) in periviable infants among neonatal intensive care unit (NICU) personnel., Study Design: A vignette-style survey was administered to NICU personnel at two urban NICUs assessing likelihood of discussing WLST or support for discussing WLST (on a scale from 1, not at all likely/supportive to 10, extremely likely/supportive) in 10 clinical scenarios., Results: Response rates ranged by clinical role from 26 to 89%. Participant responses ranged from 1 to 10 in 5 out of 10 vignettes for NICU attendings, and 9 out of 10 vignettes for bedside nurses. Lower gestational age (22-23 vs. 24-25 weeks) was associated with increased likelihood to discuss WLST in some but not all scenarios., Conclusion: NICU personnel have widely variable criteria for discussing WLST which threatens the informed consent process surrounding resuscitation decisions in a "trial of therapy" framework., Key Points: · NICU personnel have variable criteria for WLST.. · Parents have little say in whether WLST is offered.. · Disclosure of variable criteria is not routine.., Competing Interests: None declared. This study was determined to be exempt by the Ann and Robert H. Lurie Children's Hospital and Northwestern University Institutional Review Board., (Thieme. All rights reserved.)