Medicine and Health Sciences Commons^™

Variation In Thiopurine Metabolism In Hispanic Children, Kayeleigh Higgerson Do

Research Days

Background: Acute lymphoblastic leukemia (ALL) is the most common childhood cancer. Overall survival rate is > 90% in the United States. However, ethnic and racial disparities remain. Hispanic patients have an inferior overall survival compared to non-Hispanics. The reasons for these differences remain unclear. Mercaptopurine (6MP) is a crucial drug in ALL treatment. Variations in the TMPT and NUDT15 genes lead to altered 6MP metabolism and accumulation of toxic metabolites (6TGN or 6MMPN). Each metabolite is associated with specific dose-limiting toxicities. The accumulation of 6TGN causes myelosuppression, and increased 6MMPN causes GI toxicity. While variants in these genes have been identified …

Potassium Status In Pediatric Chronic Kidney Disease, Katherine L. Kurzinski

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Background: Potassium trends are well described in adult chronic kidney disease (CKD) and hyperkalemia is known to be associated with increased disease progression, morbidity, and mortality. Large scale studies assessing potassium trends and the prevalence of hyperkalemia in pediatric CKD have not been performed.

Objectives/Goal: We aimed to characterize median serum potassium levels and the prevalence of hyperkalemia for each CKD stage using the CKiD cohort. The relationship of serum potassium and hyperkalemia with patient demographics, CKD etiology (glomerular or non-glomerular), presence of acidosis, and degree of proteinuria was also evaluated.

Methods/Design: Median serum potassium …

Association Of Rare Variants In Kidney Developmental Genes With Hypertension And Ckd: A Uk Biobank Study, Benjamin L. Spector

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Background: Prior studies show chronic kidney disease (CKD) is heritable but only a few common variants have been associated with CKD and kidney dysfunction. Much of CKD heritability remains unknown and limited studies have explored the role of rare genetic variants in this missing heritability.

Objectives/Goal: Identify rare genetic variants in renal developmental genes associated with hypertension and CKD.

Methods/Design: We examined the association between rare variants in 58 candidate genes from five renal developmental compartments and presence of CKD and elevated blood pressure (BP) in 49,989 individuals using whole exome sequencing and phenotypic data …

Type 2 Diabetes Mellitus During The Covid-19 Pandemic, Erica Wee

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Background The prevalence of type 2 diabetes mellitus (T2D) in youth has increased significantly over the past decades secondary to the increased prevalence of obesity. Epidemiologic data estimates that the incidence of youth-onset T2D increased 5% per year between 2002 and 2012. Recent studies have shown that childhood obesity increased with the COVID-19 pandemic. However, if this resulted in increased incidence of T2D has not been well-reported.

Objectives: This study seeks to evaluate new-onset T2D in youth during the COVID-19 pandemic (March 2020 to February 2021). We examined the frequency of new-onset T2D and proportion …

Wilms Tumor Presenting With Spontaneous Necrosis And Clostridium Perfringens Co-Infection, Ronald Palmen, Abbey Elsbernd, Kristin Palmen

Research Days

Background: Wilm’s Tumor (WT) is the most common renal malignancy of childhood. The initial presentation of WT may mimic infection or other malignancies with nonspecific symptoms including fever, abdominal/flank pain, or hematuria. This poses a diagnostic challenge for providers, particularly when both infection and malignancy are observed. We describe a case of WT with spontaneous necrosis initially obscured by overlying Clostridium perfringens infection, making diagnosis of the cancer difficult.

Case Description: A previously healthy 5-year-old girl presented to the emergency department with a two-day history of left flank pain and fevers. In the emergency department, she was tachycardic (130 bpm), …

Case Series: Bone Marrow Failure In Teen Siblings With Unique Rps19 Variant, Alexandra Prosser

Research Days

Background: Upon diagnosis of aplastic anemia, inherited bone marrow failure syndromes and acquired etiologies must be considered. Investigating causality is particularly important when multiple family members are affected. It is also essential to identify novel causative genetic variants of bone marrow failure to direct treatment in these patients.

Objectives: To describe the diagnosis and management of siblings who presented two weeks apart with severe pancytopenia and were diagnosed with severe aplastic anemia.

Methods: The first patient is a 13-year-old non-binary female who presented with severe pancytopenia on routine labs. Bone marrow biopsy revealed marked hypocellularity (0-10%) with hypoplasia. The second …

Increasing Incentive Spirometry Use In Patients With Sickle Cell Disease Admitted To Children’S Mercy Hospital, Thomas Cochran, Alexandra Prosser

Research Days

Background: Acute chest syndrome is one of the leading causes of morbidity and mortality in patients with sickle cell disease. The National Heart, Lung, and Blood Institute (NHLBI) provides specific recommendations for providing ten breaths of incentive spirometry (IS) every two hours while awake for patients with sickle cell disease to help prevent development of acute chest syndrome.

Problem Statement: We reviewed provision of incentive spirometry at Children’s Mercy between 08/01/2021 and 11/01/2021. Data was collected and the target population was identified via a report generated from the electronic medical records with specific criteria. Of those patients admitted with sickle …

Acute Kidney Injury In Youth With Diabetes Admitted With Isolated Diabetic Ketoacidosis, Isolated Hyperglycemic Hyperosmolar State, And Hyperosmolar Diabetic Ketoacidosis: A Single Center Experience, Erica Zarse

Research Days

Background: Diabetic ketoacidosis (DKA) and hyperglycemic hyperosmolar state (HHS) are hyperglycemic emergencies for which children are admitted to the hospital.

Objectives/Goal: Our objective was to compare acute kidney injury (AKI) between youth with isolated DKA to those with hyperosmolarity and explore associations to risk of AKI.

Methods/Design: Charts were reviewed from 01/2019 through 12/2020 for youth admitted with DKA (serum bicarbonate ≤16 mEq/L) and/or HHS (blood glucose ≥600 mg/dL and osmolality ≥320 mOsm/kg). Isolated HHS youth were combined with hyperosmolar DKA for analysis. AKI was defined as elevated creatinine level for age. The total amount of isotonic fluids administered was …

Quality Improvement Project To Improve Provider-To-Nursing Communication During Daily Rounds, Kayeleigh Higgerson Do, Sara Mcelroy Md

Research Days

Problem Statement/Question: We aim that by June 2021, our Heme/Onc resident service daily table rounds will include 80% of bedside nurses to improve communication between the provider team and bedside nurse.

Background/Project Intent (Aim Statement): Daily rounds on our Heme/Onc resident service include table rounds (discussion of overnight events and daily plan) and bedside rounds (team goes to see patients and relay daily plan). These rounds infrequently include the bedside nurse caring for the patient, leading to poor communication of the plan from the provider team. This is a problem, because it has the potential to lead to medical errors …

Treatment Of Recurrent Wilms Tumor With Irinotecan/Temozolomide, Meagan Vacek

Research Days

Background: Despite improvement in relapse free survival (RFS) in recurrent Wilms tumor, the 4- year RFS rate for patients treated with vincristine/dactinomycin/doxorubicin is approximately 40%. Ifosfamide, carboplatin and etoposide are commonly used in relapsed solid tumors but have significant toxicities and require hospital admission for administration. Our patient focused on quality of life, and this led to exploration of other treatment options.

Objectives/Goal: Describe a case of multiply relapsed Wilms tumor with management on oral chemotherapy for improved quality of life and remission for almost 1 year.

Methods/Design: Case Report

Results: The patient is an 11-year-old female diagnosed with Wilms …

Acute Complications In Pediatric Patients With Diabetes Admitted With Isolated Diabetic Ketoacidosis, Isolated Hyperglycemic Hyperosmolar State, And Mixed Hyperosmolar Diabetic Ketoacidosis, Erica Zarse

Research Days

Background: Diabetic ketoacidosis (DKA), hyperglycemic hyperosmolar state (HHS), and mixed DKA and HHS (hyperosmolar DKA) are hyperglycemic emergencies for which children with diabetes mellitus (DM) are admitted to the hospital. To date, there is little evidence to guide the management of pediatric diabetic patients with hyperosmolarity.

Objectives: The objective of this study is to compare the in-hospital complications at our institution in patients who have isolated DKA to those with a component of hyperosmolarity.

Methods: We reviewed medical records of patients from 01/2019 through 12/2020 admitted with DKA (serum bicarbonate ≤16 mEq/L) and/or HHS (blood glucose ≥600 mg/dL and osmolality …

Memory T Cell Populations In Human Leukemia, Sara Mcelroy

Research Days

Background: Incorporating the immune system into cancer management is an area of robust research. Treatment modalities aimed at activating cytotoxic T cells against malignancies include immune checkpoint inhibitors, bispecific T-cell engagers, and chimeric antigen receptor (CAR) tumor-specific T cells. Most anti-cancer T cell research is narrowly focused, but knowledge about the nature of diverse sub-populations of T cells in cancer, particularly memory T cells, is vital prior to potential incorporation into therapies. T memory stem cells (Tscm) are of interest due to their longevity and powerful abilities of self-renewal and creating the full spectrum of memory CD8+ T cells, including …

The Racial And Ethnic Makeup Of The Asthma Clinical Trials Informing The 2020 Nhlbi Asthma Guidelines Update, Esosa Adah

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Rationale: Black/African American and Hispanic people in the United States are disproportionately impacted by asthma with increased prevalence, morbidity, and mortality. However, these groups are often under-represented in asthma clinical and translational research studies which is a barrier to achieving health equity. We describe the racial/ethnic makeup of participants included in clinical trials which informed the recent 2020 National Heart, Lung, and Blood Institute(NHLBI) asthma management guidelines focused update.

Methods: We identified clinical trials included within the 2020 NHLBI asthma management guidelines focused update. We determined the frequency (%) of studies reporting study participant racial/ethnic …

Variation In Laboratory & Radiographic Workup And Outcome In Children Hospitalized With Common Musculoskeletal Infections, Emily Bonanni

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Background: Common pediatric musculoskeletal infections (MSKIs) require prompt recognition & treatment to prevent significant morbidity and mortality. Variation in initial workup of these infections & associations with clinical outcomes is not well studied and could aid development of evidence-based guidelines to provide high-value care for all MSKIs.

Objectives/Goal: Examine variation in initial lab testing & imaging obtained in patients hospitalized for common MSKIs and explore association with clinical outcomes (length of stay (LOS), cost, 30-day readmission).

Methods/Design: We performed a retrospective, multicenter cohort study of hospitalized children aged 6 months to 18 years with a …

Financial Outcomes By Severity Across Children's Hospitals, Jonathan Hartley

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Background: Hospitalizations represent a significant driver of healthcare costs for children. Little is known about how payor type and the severity of children cared for on the pediatric medical inpatient floor impact a hospital’s financial outcomes.

Objectives/Goal: The primary objective of this study is to compare financial outcomes of pediatric hospitalizations to the medical inpatient floor across patient severity quartiles. Secondary objectives included financial outcomes stratified by payor type across severity quartiles.

Methods/Design: Retrospective cohort study included children aged 0-18 years discharged during calendar year 2019 from hospitals that reported clinical information to the Pediatric …

Spending On Public Benefit Programs And Exposure To Adverse Childhood Experiences, Megan Collins

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Background: Adverse childhood experiences (ACEs) have been shown to be associated with poor health outcomes, and children living in poverty are more likely to experience ACEs. Our objective was to estimate the association between spending on benefit programs and cumulative exposure to ACEs among children.

Methods: This cross-sectional study examined state and federal spending, at the state-level, on 5 categories of public benefit programs: cash, housing, and in-kind assistance; housing infrastructure; childcare assistance; refundable Earned Income Tax Credit; and Medical Assistance Programs (e.g., Medicaid). The primary exposure was median annual spending per person living below …

Timing Of Testing For Ige-Mediated Food Allergy After Systemic Reaction, Jordan Pitt

Research Days

Background: A refractory period of falsely negative testing can occur following a systemic allergic reaction to Hymenoptera sting. As a result, blood specific IgE and/or skin prick tests (SPT) for other allergens are often delayed.

Objectives/Goal: This study aims to identify the proportion of patients with falsely negative test results in the 6 weeks following an allergic reaction to food, and factors that may affect it.

Methods/Design: This is a retrospective chart review study. One hundred fourteen pediatric subjects met inclusion criteria. Each had a convincing history of food allergy with a systemic allergic reaction and was tested to the …

Who Is My Child’S Main Doctor? Assessing Caregiver Perceptions Of Teaching Teams At A Pediatric Tertiary Care Center., Jonathan Ermer

Research Days

Background: The size and structure of large academic teaching teams can create a barrier to communication and relationship-building with caregivers. Studies have shown that from a patient perspective, being able to name their doctor and identify their role is important. Benefits include increased patient satisfaction, improved relationships in line with the family-centered care movement, and improved patient safety. Although important, studies in both adults and pediatrics have shown that patients and caregivers do not know who their doctors are. Acknowledging the hierarchy present on family-centered rounds is not only burdensome and confusing to patients and caregivers, but it can also …

Improving Advanced Therapeutic Endoscopy Performance At An Academic Children's Hospital, Julia Snodgrass, Thomas M. Attard, Donna Ditsch, John Colgan, Amanda Weston, Jessica Koch, Nadia Ibrahimi, Pang Krasaelap, Voytek Slowick, Laura Shroyer

Research Days

Problem Statement/Question: Advanced therapeutic endoscopy is infrequently needed but critical in the management of children with complex gastroenterology disorders. Hands-on experience in specific advanced techniques, set up of endoscopy equipment and familiarity with new ancillary equipment for use during endoscopy have been intra-departmentally identified as potential areas for improvement.

Background/Project Intent: Our aim is to improve provider scoring on an endoscopy practice test based on technical aspects of therapeutic techniques, indications and set up of standard and new endoscopic equipment by 20% over pre-practice session testing.

Methods: The Model for Improvement framework was utilized. A multidisciplinary team was created including …

Everyday Ethics And Equity At The Bedside, Shika Kalevor, Angie Knackstedt

Research Days

Background: Traditional bioethics training, although important, may not be completely suited to the nursing role. In contrast to traditional clinical ethics, which focuses on healthcare dilemmas, everyday ethics focuses on routine clinical encounters between clinicians, patients, and families and may be better suited to help nurses address issues such as bias and racism at the bedside.

Objectives/Goal: This study aims to provide a data-backed approach to ethics education for nurses as it pertains to improvements in the understanding of Diversity, Equity, & Inclusion (DEI) efforts in healthcare. This study also provides an opportunity for the field of bioethics to provide …

A Case Of An Elevated Tryptase, Sonya Parashar

Research Days

Introduction: Hereditary Alpha Tryptasemia (HαT) is an autosomal dominant disorder characterized by an elevated baseline tryptase that occurs up to 3% of the population and clinically resembles mast cell activation syndrome.

Case description: A full-term, 13-month-old female patient presented to Allergy and Immunology clinic for persistently elevated tryptase. Her initial symptom was non-bloody loose stools, but she later developed recurrent flushing, joint pain, constipation, and frequent nighttime awakenings. Her past medical history included gastroesophageal reflux disease. Family history was significant for an older sibling with history of flushing. At all visits, physical examination was normal. Tryptase ranged between 11.7 - …

Barriers And Facilitators To Precision Medicine For Black Children With Autism Spectrum Disorder, Rachel Goodson

Research Days

Background: The field of pharmacogenomics (identification of biomarkers regarding drug metabolism and activity to inform precision prescribing) is rapidly advancing for individuals on the autism spectrum, but these advancements are not equitably benefiting all communities. Specifically, utilization data suggests that Black families may be less likely to have access to clinical precision medicine supports. Moreover, historic underrepresentation of African-descended populations in genetic reference samples means that emerging research on precision medicine will retain these biases and perpetuate disparities in downstream clinical benefit. These issues are especially relevant to the autism community, who are more likely to receive psychotropic medications that …

Factors Leading To Reduced Unscheduled Pediatric Asthma Visits During Covid-19, Sean Stout

Research Days

Background: Emergency Department (ED) and inpatient (IP) asthma visits were reduced during 2020 at a tertiary pediatric hospital. This was likely due to measures used to avoid exposure to the SARS-CoV2 virus which led to fewer viral upper respiratory infections (URIs). Other known asthma triggers include allergens, air pollution, and weather changes.

Objectives/Goal: To determine whether other factors could explain this reduction, we looked for changes in other asthma triggers such as pollen, air pollution, and weather.

Methods/Design: Monthly ED and IP asthma visits from 2010 to 2019 were compared to 2020 by time series analysis (TSA), controlling for total …

Recurrent Primary Spontaneous Pneumothorax Masquerading As A Congenital Pulmonary Airway Malformation In A Young Female, Chandra Swanson

Research Days

Background: Spontaneous pneumothoraxes in children are uncommon, may be idiopathic or associated with underlying pulmonary disease, and can present management challenges.

Objectives/Goal: We present a 12-year-old female with recurrent right sided spontaneous pneumothorax in the setting of an asymptomatic SARS-Co-V2 (COVID) infection and imaging concerning for congenital lobar overinflation (CLO) versus congenital pulmonary airway malformation (CPAM), prompting surgical intervention.

Methods/Design: A literature review and chart review were completed for this case report.

Results: A 12-year-old pre-menstrual female with remote history of eczema, asthma, and environmental allergies presented from an outside facility with four-days of progressive chest pain and dyspnea on …

Ultrasound Guided Peripheral Iv Access Curriculum For The Pediatric Emergency Department: A Pilot Study., Samuel Dillman

Research Days

Background: Up to 50% of children have difficult venous access. Studies in the Pediatric Emergency department (PED) have shown that ultrasound guided peripheral IV (USGPIV) access has decreased IV access time and ED length of stay.  Barriers for use include lack of training and comfort with the procedure.

Objectives/Goal: Our objectives are to pilot and evaluate USGPIV training for Pediatric Emergency Medicine (PEM) physicians and nurses.

Methods/Design: The course included a 4-hour, hands-on session with US IV training using a blue phantom task trainer in conjunction with the Vascular Access Team (VAT) for PEM physicians and nurses.  Participants’ skills were …

Likelihood Ratios For Reactions To Egg Based On Specific Ige And Oral Challenges, Melissa Anderson

Research Days

Background: Specific IgE (sIgE) to foods has been used to predict the risk of a systemic reaction (SR) when the food is ingested. An arbitrary cutoff of 0.35 is often used to separate a positive likelihood ratio (LR+) from a negative one (LR-), yet there is little evidence supporting the use of this value.

Objectives/Goal: The objective of this project was to establish a more accurate method for estimating the probability of food allergy to egg.

Methods/Design: Egg-sIgEs were measured and open oral egg challenges were performed on 155 children with a clinical history of egg allergy. Logistic regression (LR) …

Evaluating Caretaker Satisfaction With Same-Day Discharge After Gastrostomy Tube Placement, James A. Fraser Md, Shai Stewart Md, Kayla B. Briggs Md, Shawn D. St. Peter Md, Tolulope A. Oyetunji Md Mph

Research Days

Background: Same-day discharge (SDD) after outpatient laparoscopic gastrostomy tube (G-tube) placement has been our standard institutional practice since 2017, following written and video-based preoperative education regarding G-tube use, maintenance, and exchange at the time of consultation.

Objectives/Goal: We aim to evaluate caretaker satisfaction with our same day discharge protocol following laparoscopic gastrostomy tube placement.

Methods/Design: Following IRB approval, all patients planned for SDD after G-tube placement from FebruarySeptember 2021 at a tertiary care academic center were identified. Retrospective chart review was performed to identify demographic information, successful same-day discharge or reason for postoperative admission, time to first postoperative feed, length …

Feeding And Swallowing Disorders In 100 Children With 22q11.2 Syndrome, Jana Ghulmiyyah

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Background: 22q11.2 deletion syndrome (22q11DS) is the most common microdeletion syndrome. The syndrome includes a wide range of variable features including congenital heart disease, palatal abnormalities, immune deficiency and learning difficulties. Otolaryngologic manifestations include hearing loss, characteristic facial features and laryngotracheal abnormalities. A few studies have reported dysphagia as a common feature of this syndrome however little is known about the specific feeding and swallowing difficulties that occur in children with 22q11DS.

Objectives/Goal: The aim of the study is to identify the frequency of feeding and swallowing disorders in a large cohort of pediatric patients …

Evaluation Of A Modified Pre-Medication Algorithm For Non-Emergent Intubation In A Neonatal Intensive Care Unit, Lilah Melzer

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Background: The use of pre-medication for elective non-emergent intubation in neonates and infants has been suggested to minimize physiologic instability, decrease oral/pharyngeal trauma and decrease time and attempts to successful intubation. A pre-medication algorithm including the use of Fentanyl + Atropine was modified to include a higher dose of fentanyl with addition of muscle relaxant and benzodiazepine in a level IV neonatal intensive care unit.

Objective: The objective of this study was to compare first attempt success of intubation pre- vs post-modification of the pre-medication algorithm.

Methods: This is a single site retrospective chart review. …

Inpatient Outcomes For Children Receiving Empiric Methicillin-Resistant Staphylococcus Aureus Coverage For Complicated Pneumonia, Sophia Hackman

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Background: Pediatric community acquired pneumonia is responsible for an estimated 124,000 hospitalizations annually in the United States, with up to 40% of hospitalized children subsequently developing a complicated pneumonia (i.e., effusion/empyema). Children with complicated pneumonia commonly require increased numbers of procedures, have exposure to broad-spectrum antibiotics, and have prolonged hospitalizations. While the prevalence of pneumonia has overall declined with childhood vaccination, the number of children with complicated pneumonia has remained stable. Current guidelines do not adequately address antibiotic management of pediatric complicated pneumonia specifically when to utilize methicillin-resistant Staphylococcus aureus (MRSA) coverage, likely contributing to …