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Safety, efficacy and dosing of enteral L‐citrulline supplementation in preterm infants. A randomized controlled trial.

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Primary Author: Mohammad Qasim Mehdi, MD Mentor: Sunil Jain, MD Background Citrulline (CIT) is a semi-essential amino acid in preterm infants (PI). Through enzymatic reactions in the urea cycle, CIT is converted to arginine (ARG) and serves as a precursor for endogenous synthesis of nitric oxide (NO), a known potent vasodilator that regulates blood supply to the lungs, intestines and other organs. Lower levels of ARG and CIT have been reported in infants with NEC, bronchopulmonary dysplasia associated pulmonary hypertension (BPD-PH) and sepsis. We hypothesized that that enteral CIT supplementation is safe in PI and increases plasma CIT and ARG levels in PI. We speculate that the higher plasma ARG levels in turn will result in increased endogenous NO production, conferring potential benefits in BPD-PH and NEC. Methods A pilot, double blinded, randomized controlled trial (NCT03649932) of 42 PI (< 33 weeks) was conducted. Subjects were randomized to receive low, medium and high dose C...

Maternal Mastitis as a Risk Factor for Neonatal Parotitis

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Primary author: Kyle Shelton, DO Mentors: Natalie Royer, DO and Elizabeth Rodriguez‐Lien, MD Acute neonatal parotitis is a rare disease, with approximately 75 cases reported between 1970 and 2022. The disease is characterized by swelling of the parotid gland, often unilateral, with associated erythema and tenderness to the area. Fever, agitation, and dehydration are often associated with parotitis. Prompt recognition of the condition allows for the initiation of antibiotic treatment and the avoidance of complications. This case‐study describes a full‐term infant who presented with neonatal parotitis. The history of present illness revealed that the patient’s mother had mastitis of one breast and was actively breastfeeding. Mastitis of breastfeeding mothers has been implicated as a route for the transmission of contaminated breastmilk to the infant and as a risk factor for the development of neonatal parotitis.

Utilizing Risk Stratification to Optimize Outcomes for Neonates Admitted with Hyperbilirubinemia for Phototherapy.

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Primary Author: Stranberg, Adam DO Mentor: Gonzalez, Amy MD Objective: The aim of this quality improvement project was to implement a hyperbilirubinemia protocol on the UTMB Pediatric Inpatient floor based on a clinical calculator for determining risk of rebound hyperbilirubinemia in infants admitted for first time phototherapy to reduce phlebotomies while hospitalized and decrease need for bilirubin clinic follow-ups. Abstract: The American Academy of Pediatrics has standardized guidelines for initiation of phototherapy in infants, but no guidelines on discontinuation and risk stratification after phototherapy. Rebound hyperbilirubinemia is defined as the return of hyperbilirubinemia to phototherapy threshold within 72 hours of phototherapy discontinuation.  Current practice at UTMB is to assess the risk of rebound hyperbilirubinemia based on obtaining a rebound serum bilirubin result 6 hours after discontinuation of phototherapy. Chang et. al. developed a clinical calcu...

The Predictors of Readmission or Death in Children with Cerebral Malaria and Severe Malaria Anemia.

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  Rasaq Olaosebikan1 MD, MPH, Lamuel Aigbivbalu1 MD,Chandy John2 1Department of Pediatric, The University of Texas Medical Branch, Galveston, TX 2 Indiana University School of Medicine, Indianapolis Background Malaria accounts for the highest cause of mortality and morbidity in sub-Saharan Africa. The highest burden of malaria is bore by children under five and pregnant women. It is estimated that 228 million malaria occurred worldwide in 2018, with Sub Saharan African accounting for 93%. Malaria can manifest in different forms, but the most devastating manifestations of malaria is Cerebral malaria (CM) and severe malaria anemia(SMA). Previous studies in western Kenya and southern Malawi indicate that not only are young children admitted to hospital for severe anemia at high risk of in-hospital mortality, but also an additional 10–16% of patients die or are readmitted in the first 3–6 months after discharge. In patients who have received blood transfusion for SMA, new episode of ma...

Impulse Oscillometry as Predictor of Asthma exacerbation resulting in Emergency Room/Urgent Care visits or Hospitalization: A Retrospective Study

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Gauri Kulkarni MBBS Abstract The Impulse Oscillometry System is a technique that generates pressure oscillations with low (5Hz) frequency and high (20Hz) frequency signals and delivers it to the respiratory tract1. Low frequency sound waves reach the peripheral airways with diameter less than 2 mm, while the high frequency sound waves reach the central airways1 Peripheral airways are major sites of obstruction and inflammation, which are not well evaluated by spirometry. IOS which measures airway impedance can differentiate between central and distal obstruction. IOS could detect distal airway impairment even before clinical manifestations and spirometry abnormalities develop. We analyzed clinical and IOS parameters predicting asthma exacerbation within 1 year of IOS measurement

A Rare Case of Bladder Exstrophy in a Neonate

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Primary author: Chacko, Ann DO Mentor: Huff, Monica MD Abstract: CHARGE syndrome is a rare disorder which occurs in 1 in 10,000 births. It manifests in multiple organ systems. Among cases exhibiting typical CHARGE or a milder phenotyle, CHD7 analysis detected pathogenic variants in 65% to 70% of cases. CHD7 is thought to play a role in activating transcription factors that are responsible for neural crest cell migration. We report the case of an infant who met clinical and genetic criteria for a diagnosis of CHARGE syndrome. This patient’s particular pathogenic variant has not previously been reported and is suspected to be a de novo mutation, however low level mosaicism cannot be excluded. Our patient’s genetic p.V1021g change has been reported once in a female CHARGE patient with isolated gonadotropin releasing hormone deficiency. Furthermore, while genitourinary malformations have been reported in 61% of cases, they are less common in females and there have not been previous assoc...

Rare Case of Syndromic Multi-suture Craniosynostosis

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Primary Author: Alexandra Halloran DO Mentor: Rafael Fonseca MD Abstract: Craniosynostosis is a condition in which the cranial sutures fuse prematurely affecting skull and brain growth, neurodevelopment, and proper respiratory and sensory functioning. Most recent data shows that the prevalence of this condition is between 1 in 2100 to 2500 live births per year worldwide. Craniosynostosis may involve only one suture or multiple sutures, and the resultant skull deformity depends on where the premature fusion occurs. About 13% of cases involve multiple sutures and 20% of cases are caused by specific chromosomal abnormalities or gene mutations. Multi-suture craniosynostosis tends to be much more severe and a multi-disciplinary approach is required when managing these patients. The following is a case report of a 2 year old female with multiple suture craniosynostosis, clover-leaf skull syndrome, FGFR2 mutation, ventriculomegaly, hydrocephalus, hypoplasia of maxilla and mandible, craniovert...