Presence of Increased Mast Cells in Infants and Children with Volume and Variety Limited Intake

Background: Reports indicate patients with feeding difficulties demonstrate signs of inflammation on biopsies, notably eosinophilia, but it is unknown whether mast cell density contributes to variety or volume limitation symptoms. The aim of our study was to evaluate eosinophil and mast cell density of EGD biopsies in pediatric patients with symptoms of decreased volume or variety of ingested foods. Methods: We conducted a single-center, retrospective chart review of EMRs for all new feeding clinic patients between 0 and 17 years of age. Patients were categorized by symptoms at the initial visit as well as eosinophil and mast cell densities in those with EGD biopsies. Ten patients were identified as controls. Results: We identified 30 patients each with volume and variety limitation. Antral mast cell density was increased in 32.1% of variety-limited patients, 37.5% of volume limited patients, and in no controls; Duodenal mast cell density was increased in 32.1% of variety-limited patients, 40.6% of volume-limited patients, and in no controls. Conclusions: In both variety- and volume-limited patients, antral and duodenal mast cell densities were increased. These associations warrant further investigation of the mechanism between mast cells and development of feeding difficulties, allowing more targeted pediatric therapies.

Effect of Frenotomy on Maternal Breastfeeding Symptoms and the Relationship Between Maternal Symptoms and Problematic Infant Feeding

The relationship between maternal symptoms and problematic infant feeding in the context of tongue-tie is unknown. In a sample of infants with tongue-tie undergoing frenotomy and their mothers, the aims of this study were to: (1) describe changes in maternal symptoms pre- and post-frenotomy, and (2) evaluate the relationships between maternal symptoms and symptoms of problematic feeding pre- and post-frenotomy. Mother-infant dyads were recruited from 1 pediatric dental office between July and November 2020. The sample included 102 mother-infant dyads; 84 completed the follow-up survey. Maternal symptoms of painful and difficult latch, creased/cracked nipples, bleeding, or abraded nipples, chewing of the nipple, and feelings of depression were significantly less common after tongue-tie revision. Poor latch onto the breast was associated with feeding difficulties at both time points. Frenotomy resulted in a decrease of symptoms in breastfeeding mothers. Maternal symptoms and feeding problems persisting post-frenotomy warrant further evaluation.

Developing a Quality Improvement Feeding Program for NICU Patients

Practices in NICUs vary widely, particularly when clinical decisions involve complex tasks and multiple disciplines, which occurs with feeding preterm infants. Neonatal feeding difficulties in preterm infants often lead to prolonged tube feeding and therefore lengthened hospital stays. Education and compliance with evidence-based protocols and guidelines are needed on the initiation of feedings and feeding advancement to transform enteral and oral feeding practices and thus reduce practice variation and improve clinical outcomes.

Three novel mutations of the BCKDHA, BCKDHB and DBT genes in Chinese children with maple syrup urine disease

Background Maple syrup urine disease (MSUD) is a rare metabolic autosomal recessive disorder caused by deficiency of the branched-chain α-ketoacid dehydrogenase complex. Mutations in the BCKDHA, BCKDHB and DBT genes are responsible for MSUD. This study presents the clinical and molecular characterizations of four MSUD patients. Methods Clinical data of patients were retrospectively analyzed, and genetic mutations were identified by whole-exome sequencing. CLUSTALX was employed to analyzed cross-species conservation of the mutant amino acid. The impact of the mutations was analyzed with PolyPhen-2 software. The I-TASSER website and PyMOL software were used to predict the protein three-position structure of the novel mutations carried by the patients. Results Vomiting, irritability, feeding difficulties, seizures, dyspnoea, lethargy and coma were the main clinical presentations of MSUD. Cranial MRI showed abnormal symmetrical signals in accordance with the presentation of inherited metabolic encephalopathy. Seven mutations were detected in four patients, including three novel pathogenic mutations in the BCKDHA (c.656C>A), BCKDHB (deletion of a single-copy of BCKDHB) and DBT (c.1219dup) genes. Structural changes were compatible with the observed phenotypes. Conclusions Different types of MSUD can display heterogeneous clinical manifestations. Exhaustive molecular studies are necessary for a proper differential diagnosis. The newly identified mutation will play a key role in the prenatal diagnosis of MSUD in the future.

Trisomy 18 – When the Diagnosis Is Compatible With Life

Trisomy 18 is an autosomal chromosomal disorder characterized by the presence of an extra 18 chromosome. In the last decades, and as the therapeutic options have become more relevant, the medical community witnessed a paradigm shift on the offer of treatment to these children.This is a retrospective, cohort study that strives to characterize the clinical path and survival of the children with the diagnosis of trisomy 18, accompanied in a tertiary pediatric hospital between 1995 and 2020.Six children were identified with trisomy 18, two of them mosaic (33,3%) and four were females (66,7%). All had cardiovascular, cognitive and physical development anomalies or minor congenital anomalies (n=6, 100%) and most presented musculoskeletal anomalies (n=5, 83,3%) and feeding difficulties (n=4, 66,7%). Four children (66,7%) were reliant on devices or equipment and all needed chronic medication (n=6, 100%). Two children (33,3%) were submitted to surgical interventions. Four children (66,7%) were hospitalized in the last year of life. A decision of limitation of therapeutic effort was present in three cases (50%) with one child being referenced to pediatric palliative care (16,7%). One-month, one-year and ten-year survival were 66,7% (n=4), 33,3% (n=2, both mosaic), and 16,7% (n=1, mosaic) respectively.Conclusions: Knowledge on the clinical picture is of great importance regarding the neonatal care and the decisions about invasive treatments, which can involve ethical issues, highlighting, concurrently, the need for attempted referral of these children to pediatric palliative care teams.

Rethinking the Rule of 10s: Early Cleft Lip Repair Improves Weight Gain

Objective This study compares patients undergoing early cleft lip repair (ECLR) (<3-months) and traditional lip repair (TLR) (3-6 months) with/without nasoalveolar molding (NAM) to evaluate the effects of surgical timing on weight gain in hopes of guiding future treatment paradigms. Design Retrospective review. Setting Children's Hospital of Los Angeles, California. Patient, Participants A retrospective chart review evaluated patients who underwent ECLR or TLR ± NAM from November 2009 through January 2020. Interventions No intervention was performed. Main Outcome Measure(s) Patient demographics, birth and medical history, perioperative variables, and complications were collected. Infant weights and age-based percentiles were recorded at birth, surgery, 8-weeks, 6-months, 12-months, and 24-months postoperatively. The main outcomes were weight change and weight percentile amongst ECLR and TLR ± NAM groups. Results 107 patients met inclusion criteria: ECLR, n = 51 (47.6%); TLR + NAM, n = 35 (32.7%); and TLR-NAM, n = 21 (19.6%). ECLR patients had significantly greater changes in weight from surgery to 8-weeks and from surgery to 24-months postoperatively compared with both TLR ± NAM ( P < .05). Age-matched weights in the ECLR group were significantly greater than TLR ± NAM at multiple time points postoperatively ( P < .05). Conclusions ECLR significantly increased patient weights 24-months postoperatively when compared to TLR ± NAM. Specifically compared to TLR-NAM, ECLR weights were significantly greater at all time points past 6-months postoperatively. The results of this study demonstrate that ECLR can mitigate feeding difficulties and malnutrition traditionally seen in patients with cleft lip.

Case report : a novel ASXL3 gene variant in a Sudanese boy

Background Bainbridge-Ropers syndrome (BRPS) [OMIM#615485] is a neurodevelopmental disorder, characterized by delayed psychomotor development with generalized hypotonia, moderate to severe intellectual disability, poor or absent speech, feeding difficulties, growth failure, dysmorphic craniofacial features and minor skeletal features. The aim of this study was to investigate the genetic etiology of a Sudanese boy with severe developmental delay, intellectual disability, and craniofacial phenotype using trio-based whole-exome sequencing. To our knowledge, no patients with ASXL3 gene variant c.3043C>T have been reported detailedly in literature. Case presentation The patient (male, 3 years 6 months) was the first born of a healthy non-consanguineous couple originating from Sudan, treated for “psychomotor retardation” for more than 8 months in Yiwu. The patient exhibited severely delayed milestones in physiological and intellectual developmental stages, language impairment, poor eye-contact, lack of subtle motions of fingers, fear of claustrophobic space, hypotonia, clinodactyly, autistic features. Peripheral blood samples were collected from the patient and his parents. Trio-based whole-exome sequencing(Trio-WES) identified a de novo heterozygous ASXL3 gene variant c.3043C>T;p.Q1015X. Sanger sequencing verified variants of this family. Conclusion Trio-WES analysis identified a de novo nonsense variant (c.3043C>T) of ASXL3 gene in a Sudanese boy. To our knowledge, the patient with this variant has not been reported previously in literature. This study presents a new case for ASXL3 gene variants, which expanded the mutational and phenotypic spectrum.