sickle cell disease Archives

The best of 2023 from Innovation District

December 27, 2023

Advanced MRI visualization techniques to follow blood flow in the hearts of cardiac patients. Gene therapy for pediatric patients with Duchenne muscular dystrophy. 3D-printed casts for treating clubfoot. These were among the most popular articles we published on Innovation District in 2023. Read on for our full list.

1. Advanced MRI hopes to improve outcomes for Fontan cardiac patients

Cardiac imaging specialists and cardiac surgeons at Children’s National Hospital are applying advanced magnetic resonance imaging visualization techniques to understand the intricacies of blood flow within the heart chambers of children with single ventricle heart defects like hypoplastic left heart syndrome. The data allows surgeons to make critical corrections to the atrioventricular valve before a child undergoes the single ventricle procedure known as the Fontan.
(3 min. read)

2. Children’s National gives first commercial dose of new FDA-approved gene therapy for Duchenne muscular dystrophy

Children’s National Hospital became the first pediatric hospital to administer a commercial dose of Elevidys (delandistrogene moxeparvovec-rokl), the first gene therapy for the treatment of pediatric patients with Duchenne muscular dystrophy (DMD). Elevidys is a one-time intravenous gene therapy that aims to delay or halt the progression of DMD by delivering a modified, functional version of dystrophin to muscle cells.
(2 min. read)

3. New model to treat Becker Muscular Dystrophy

Researchers at Children’s National Hospital developed a pre-clinical model to test drugs and therapies for Becker Muscular Dystrophy (BMD), a debilitating neuromuscular disease that is growing in numbers and lacks treatment options. The work provides scientists with a much-needed method to identify, develop and de-risk drugs for patients with BMD.
(2 min. read)

4. First infants in the U.S. with specially modified pacemakers show excellent early outcomes

In 2022, five newborns with life-threatening congenital heart disease affecting their heart rhythms were the first in the United States to receive a novel modified pacemaker generator to stabilize their heart rhythms within days of birth. Two of the five cases were cared for at Children’s National Hospital. In a follow-up article, the team at Children’s National shared that “early post-operative performance of this device has been excellent.”
(2 min. read)

5. AI: The “single greatest tool” for improving access to pediatric healthcare

Experts from the Food and Drug Administration, Pfizer, Oracle Health, NVIDIA, AWS Health and elsewhere came together to discuss how pediatric specialties can use AI to provide medical care to kids more efficiently, more quickly and more effectively at the inaugural symposium on AI in Pediatric Health and Rare Diseases, hosted by Children’s National Hospital and the Fralin Biomedical Research Institute at Virginia Tech.
(3 min. read)

6. AAP names Children’s National gun violence study one of the most influential articles ever published

The American Academy of Pediatrics (AAP) named a 2019 study led by clinician-researchers at Children’s National Hospital one of the 12 most influential Pediatric Emergency Medicine articles ever published in the journal Pediatrics. The findings showed that states with stricter gun laws and laws requiring universal background checks for gun purchases had lower firearm-related pediatric mortality rates but that more investigation was needed to better understand the impact of firearm legislation on pediatric mortality.
(2 min. read)

7. Why a colorectal transition program matters

Children’s National Hospital recently welcomed pediatric and adult colorectal surgeon Erin Teeple, M.D., to the Division of Colorectal and Pelvic Reconstruction. Dr. Teeple is the only person in the United States who is board-certified as both a pediatric surgeon and adult colorectal surgeon, uniquely positioning her to care for people with both acquired and congenital colorectal disease and help them transition from pediatric care to adult caregivers.
(3 min. read)

8. First-of-its-kind holistic program for managing pain in sickle cell disease

The sickle cell team at Children’s National Hospital received a grant from the Founders Auxiliary Board to launch a first-of-its-kind, personalized holistic transformative program for the management of pain in sickle cell disease. The clinic uses an inter-disciplinary approach of hematology, psychology, psychiatry, anesthesiology/pain medicine, acupuncture, mindfulness, relaxation and aromatherapy services.
(3 min read)

9. Recommendations for management of positive monosomy X on cell-free DNA screening

Non-invasive prenatal testing using cell-free DNA (cfDNA) is currently offered to all pregnant women regardless of the fetal risk. In a study published in the American Journal of Obstetrics and Gynecology, researchers from Children’s National Hospital provided context and expert recommendations for maternal and fetal evaluation and management when cfDNA screening is positive for monosomy X or Turner Syndrome.
(2 min. read)

10. Innovation in clubfoot management using 3D anatomical mapping

While clubfoot is relatively common and the treatment is highly successful, the weekly visits required for Ponseti casting can be a significant burden on families. Researchers at Children’s National Hospital are looking for a way to relieve that burden with a new study that could eliminate the weekly visits with a series of 3D-printed casts that families can switch out at home.
(1 min. read)

11. Gender Self-Report seeks to capture the gender spectrum for broad research applications

A new validated self-report tool provides researchers with a way to characterize the gender of research participants beyond their binary designated sex at birth. The multi-dimensional Gender Self-Report, developed using a community-driven approach and then scientifically validated, was outlined in a peer-reviewed article in the American Psychologist, a journal of the American Psychological Association.
(2 min. read)

12. Cardiovascular and bone diseases in chronic kidney disease

In a study published by Advances in Chronic Kidney Disease, a team at Children’s National Hospital reviewed cardiovascular and bone diseases in chronic kidney disease and end-stage kidney disease patients with a focus on pediatric issues and concerns.
(1 min. read)

Neurocognitive and emotional factors predict hospital visits in children with SCD

April 10, 2023

Neurocognitive and emotional factors are predictors of visits children with SCD make to the hospital.

Many children with sickle cell disease (SCD) experience significant pain that often results in trips to the emergency department (ED) or hospitalization. Disease characteristics explain some – but not all – of the variability in pain-related healthcare utilization. In a new study published in Pediatric Blood & Cancer, experts examined the role of neurocognitive functioning and emotional factors in predicting future healthcare visits for pain up to three years later.

The big picture

In the 3-year study of 112 youth with SCD between ages 7-16, researchers found that poorer attentional control and greater emotional distress predicted more ED visits and hospitalizations for pain years later.

Past studies that have pointed to the importance of neurocognitive and emotional factors in the experience of pain have only looked at relationships at a single point in time.

“Those types of studies limit our ability to evaluate the directionality of relationships and consider the implications of neurocognitive functioning and emotional well-being for children’s health as they get older,” said lead author Steven Hardy, Ph.D., director of Psychology and Patient Care Services and psychologist in the Center for Cancer and Blood Disorders (CCBD) at Children’s National Hospital.

Why it matters

This study advances the understanding of the effects of neurocognitive functioning and emotions on the course of pain and disease morbidity in pediatric SCD.

Additionally, the findings will benefit patients by shedding light on potential intervention targets to support effective pain management.

“It also helps to reframe the conversation around pain and healthcare utilization in SCD by broadening our understanding of the factors that precipitate pain to include neurocognitive functioning and mental health,” Dr. Hardy added.

What’s unique

This work demonstrates that factors beyond disease characteristics are important to consider in a comprehensive approach to managing pain and improving quality of life for children with SCD.

“It shows that we also need to be thinking about how neurocognitive functioning and mental health affect one’s ability to manage their disease in terms of taking medications, avoiding pain triggers, coping with pain, communicating about symptoms and advocating for needs,” Dr. Hardy said. “Future work will look to see if we can preserve neurocognitive functioning and support mental health as a way to reduce pain impairment and improve quality of life.”

Children’s National is conducting several studies focused on better understanding the course of neurocognitive functioning and pain in pediatric SCD. Psychologists in the CCBD are also exploring novel interventions to preserve neurocognitive functioning and promote the development of effective strategies for coping with pain in SCD.

First-of-its-kind holistic program for managing pain in sickle cell disease

March 1, 2023

The new sickle cell clinic prioritizes looking at the whole person and considering multiple factors that promote health.

The sickle cell team at Children’s National Hospital received a grant from the Founders Auxiliary Board to launch a first-of-its-kind, personalized holistic transformative program for the management of pain in sickle cell disease (SCD). The clinic uses an inter-disciplinary approach of hematology, psychology, psychiatry, anesthesiology/pain medicine, acupuncture, mindfulness, relaxation and aromatherapy services.

Focusing on the “whole person health,” this clinic prioritizes looking at the whole person — not as individual organs or body systems — and considering multiple factors that promote health. Strategies taught in the clinic allow patients to manage their pain effectively by improving self-efficacy, coping mechanisms, and encouraging use of non-opioid and non-pharmacological modalities for pain management. Below, Deepika Darbari, M.D., hematologist and lead of the clinic, and Andrew Campbell, M.D., director of the Comprehensive Sickle Cell Disease Program, tell us more about this unique clinic.

Q: What’s been the hold-up in the field to implement a clinic like this?

A: There are many barriers at different levels in establishing a clinic like this. Most commonly it is the lack of provider expertise, which may not be available at many institutions. Furthermore, services may be available but may not be covered by health insurance. Sometimes, access to these services may be difficult because of the limited locations where they may be offered and not in conjunction with a patient’s hematology care – like in our clinic – which adds to the burden for patients and their families.

Q: How does this work move the field forward in the space of SCD?

A: This clinic is a unique concept where patients and their families actively contribute to and are at the center of the management plan. The goal of this clinic is to provide holistic care to our patients and families and positively impact all aspects of their wellbeing.

Instead of treating a specific disease, “whole person health” focuses on restoring health, promoting resilience and preventing diseases across the patient’s lifespan.

This clinic will continue to provide traditional treatment options for management of SCD along with non-opioids and nonpharmacologic therapies for management of pain, which is the most common complication of SCD.

We are not aware of any such multidisciplinary clinic for SCD like ours at Children’s National. Our team has been invited to national and international scientific conferences to share our experience and educate other programs about how to establish and sustain a clinic like ours.

Q: How will this clinic benefit patients?

A: In SCD, the symptom of pain can start as early as in the first 6 months of life and continue to occur through the lifespan of a patient, often turning into a chronic pain condition. This chronic pain is very refractory to traditional treatments including strong medications like opioids, which may not provide relief while contributing to many side effects. Our goal for patients attending this clinic is to improve their pain experience without increasing side effects.

We hope that the approach offered in this clinic will allow us to decrease the incidence and burden of chronic pain in individuals living with SCD. We would like to offer these treatment strategies early in life, which may help reduce the burden of chronic pain in our patients. We also hope that patients who have developed chronic pain can utilize these strategies to manage their pain, enhance function, reduce opioid use and improve health-related quality of life.

Q: What are you most excited about?

A: We are very excited to build upon our previous work in this space. Our pilot program was started by members of our multidisciplinary team who volunteered their time and effort for this important work.

While providing care to our families and patients, we are also looking forward to collecting robust data that can demonstrate the impact of such an approach in reducing burden of pain in SCD. This data will be helpful in supporting future research and expansion of this approach to benefit all individuals living with SCD.

Hydroxyurea initiation improves spirometry results in children with sickle cell anemia

February 28, 2023

Hydroxyurea therapy may help preserve lung function over time in children with sickle cell anemia.

Children’s National researchers participated in a recent study suggesting that the use of hydroxyurea (HU) therapy in children with sickle cell anemia (SCA) may help preserve lung function over time.

Sickle cell disease is associated with various pulmonary complications, including reactive airways, acute chest syndrome (ACS), pulmonary fibrosis and pulmonary arterial hypertension, which can lead to increased morbidity and mortality. Lung function tends to decline over time in individuals with SCA, and a more irreversible restrictive pathology develops with age and increasing respiratory complications.

Hydroxyurea is a disease-modifying therapy that has been shown to lower the rates of several complications of SCD, such as ACS and painful vaso-occlusive crises. It also might help lessen the severity of airway hyperreactivity in children.

This study provides evidence that hydroxyurea therapy may have a positive impact on pulmonary function in children with SCA, which could be of interest to doctors treating this patient population. By slowing the decline in lung function, hydroxyurea therapy may help reduce the risk of pulmonary complications and improve the overall health outcomes of children with SCA.

You can read the full study, Spirometric Changes After Initiation of Hydroxyurea in Children With Sickle Cell Anemia, in the Journal of Pediatric Hematology/Oncology.

Authors on the study from Children’s National Hospital include Dinesh Pillai, M.D., Deepika Darbari, M.D., and Anastassios Koumbourlis, M.D., M.P.H.

Fertility preservation in sickle cell disease patients

October 17, 2022

Fertility is a long-standing concern for patients with sickle cell disease and their families.

In a recent review in the Journal of Clinical Medicine, researchers from Children’s National Hospital look at the current state of fertility preservation in patients with sickle cell disease and make recommendations for longitudinal post-treatment for these individuals.

Fertility is a long-standing concern for patients with sickle cell disease and their families. Current curative therapy for the disease requires gonadotoxic conditioning, which many patients resist because of the resulting risk of infertility. And, while standard fertility preserving interventions exist for pre- and postpubescent females and males, best practices for integrating these interventions into sickle cell disease care have not yet been established.

In their article, Children’s National hematologist Robert Sheppard Nickel, M.D., and co-authors review current fertility assessments, fertility considerations in pre- and post-transplant patients with sickle cell disease and fertility preserving interventions for patients. The authors conclude that in the future, less toxic curative approaches may make fertility preservation unnecessary, but at present, fertility preservation should be offered to patients with sickle cell disease pursing curative therapy.

Additional authors from Children’s National include Michael Hsieh, M.D., Ph.D., and Jacqueline Maher, M.D.

Read the full review article, Fertility after Curative Therapy for Sickle Cell Disease: a Comprehensive Review to Guide Care, in the Journal of Clinical Medicine.

Using psychological treatments to help pediatric pain management

October 7, 2022

Behavioral pain management can utilize approaches to address the experience of co-occurring acute and chronic pain.

There are different types of pain that people experience, such as short-term (acute) pain and longer term (chronic or persistent) pain. Just like there are different pharmacologic treatments depending on the type of pain, there are different psychological or behavioral therapies that seem more effective when tailored to a person’s type of pain. Furthermore, certain psychological treatments that are known to be helpful for managing acute pain may actually be unhelpful for a child dealing with chronic pain. A framework has not previously existed for the provision of psychological treatment when children are experiencing both acute and chronic pain.

In a new article, Megan Connolly, Ph.D., pediatric psychologist, and Steven Hardy, Ph.D., pediatric psychologist and director of Psychology and Patient Care Services for the Center for Cancer and Blood Disorders, both at Children’s National Hospital, outline recommendations for the psychological treatment of acute and chronic pain in children.

The hold-up in the field

Only recently have psychological therapies gained empirical support for their efficacy in treating pain conditions. Very little research, however, has been done on how to effectively tailor psychological treatments for groups experiencing both acute and chronic pain, likely because the pain conditions that involve both acute and chronic pain are rare.

In their new article, Dr. Connolly and Dr. Hardy draw attention to this issue by pulling together empirical evidence and clinical expertise to outline a framework for the psychological and behavioral management of co-occurring acute and chronic pain in children.

“This framework will help to guide the development of novel clinical interventions for individuals who experience co-occurring acute and chronic pain,” Dr. Connolly said.

Why we’re excited

The authors reviewed how behavioral pain management strategies can utilize complementary approaches to address the experience of co-occurring acute and chronic pain.

“It’s challenging that there are not many psychological treatments that were developed with the populations we see in mind,” Dr. Connolly added. “And it’s exciting there is now a more coherent framework for treating patients that have acute and chronic pain.”

Children’s National Hospital leads the way

Many clinicians see the unique challenges of treating co-occurring acute and chronic pain. However, this is the first article to propose a clinical framework for the psychological treatment of patients experiencing both types of pain.

The authors said they hope that their article helps to enhance the current dialogue around pain perception and pain burden to address the needs of co-occurring acute and chronic pain presentations.

You can read the full study, Clinical Considerations for Behavioral Pain Management in Co-occurring Acute and Chronic Pain Presentations, in the journal Clinical Practice in Pediatric Psychology.

Children’s National joins ASH RC Sickle Cell Disease Clinical Trials Network

August 27, 2021

The American Society of Hematology Research Collaborative (ASH RC) has announced the first 10 clinical research consortia to join the ASH RC Sickle Cell Disease Clinical Trials Network. Children’s National Hospital will be one of the clinical trials units to serve in the DMV Sickle Cell Disease Consortium (DMVSCDC).

The sites will be able to enroll children and adults living with sickle cell disease (SCD) within their patient populations in clinical trials as part of an unprecedented national effort to streamline operations and facilitate data sharing to expedite the development of new treatments for this disease.

“As part of the ASH RC SCD clinical trials network, we will learn regionally and nationally how sickle cell patients respond differently to therapies, hopefully giving us clues to provide more successful targeted and individualized treatments that will improve the morbidity and mortality in sickle cell disease patients,” said Andrew Campbell, M.D., director of Comprehensive Sickle Cell Disease Program at Children’s National.

SCD is a chronic, progressive, life-threatening, inherited blood disorder that affects more than 100,000 Americans and an estimated 100 million persons worldwide. Clinical trials hold incredible promise for the development of much-needed new treatments, and possibly even a cure. While there are currently only four U.S. Food and Drug Administration (FDA)-approved drugs to treat the disease, there is a robust SCD drug development pipeline that will drive demand for clinical trials to a new level, providing a prime opportunity to advance treatment and care of those affected by SCD.

“We are proud that the DMV Sickle Cell Disease Consortium will contribute regionally, allowing our patients and families to benefit from new clinical trials investigating new therapies that may improve the clinical course and quality of life of patients living with sickle cell disease in the DMV region,” Dr. Campbell added. “We will also have an integrated Community Advisory Board who will continue to provide guidance and expertise for our consortium including patients, families and caregivers.”

Read the full list of other hospitals joining the network.

Deepika Darbari, M.D., receives the 2021 ASH Award for leadership in promoting diversity

June 30, 2021

Deepika Darbari, M.D., hematologist at Children’s National Hospital, is being honored by the American Society of Hematology (ASH) for her significant contributions to the mentorship and training of underrepresented minority researchers and for advancing the care for underrepresented patient populations, primarily individuals living with sickle cell disease (SCD). Dr. Darbari started studying and treating SCD at Howard University, where she also saw firsthand the many disparity issues surrounding the condition, such as inadequate funding, limited treatment options and biases and stigma. She also learned about barriers to career development that minority students faced. She worked to address those issues through her mentorship.

Dr. Darbari has mentored many medical students, residents and fellows whose research projects focused on improving care for individuals living with SCD. She has also fostered the careers of junior investigators of underrepresented minorities as well as served as a member of the ASH Minority Medical Student Award Program, the ASH Committee on Promoting Diversity and the ASH Women in Hematology working group, all in her continued efforts to increase diversity, equity and inclusion at ASH and in the health care community at large.

Spotlight on Suvankar Majumdar, M.D.

June 4, 2019

As a provider with international experience, Suvankar Majumdar, M.D., joined Children’s National in August 2017 as chief of Children’s Division of Hematology within the Center for Cancer and Blood Disorders. Dr. Majumdar is excited to be at Children’s National because of the opportunities for growth, cutting-edge research and continuing education that our diverse population of patients can provide clinicians.

Born in Zambia, in southern Africa, and educated in the United Kingdom, Dr. Majumdar moved to Zimbabwe to study medicine, which he considers the turning point of his career. While in medical school, Dr. Majumdar oversaw and managed the treatment of patients with HIV and other chronic illnesses and determined that blood disorders, particularly sickle cell, was where he wanted to place his focus. Since then, he has served as the Director of the Comprehensive Pediatric Sickle Cell Program as well as Director of the Hemophilia Treatment Center at the University of Mississippi and is a recognized leader in hematology and sickle cell disease. It is this expertise, as well as his dedication to research studies, that have already made him an asset to Children’s National.

Within the Division of Hematology, Children’s providers focus on treating patients with blood disorders, bleeding and clotting disorders, red blood cell disorders (such as sickle cell) and more. Since coming to Children’s National, Dr. Majumdar has experienced a tremendous amount of dedication and enthusiasm from his colleagues. “I’m excited to build on what our faculty has accomplished so far. We’re already well poised to become a national leader in hematology,” he says. “I have no doubt that we will continue to accomplish our goals through collaboration and working toward a common life-saving cause.”

One of his immediate goals for the division is to focus on bringing improved patient care and accessibility in the surrounding Washington area. Additionally, Dr. Majumdar is currently conducting two research studies for sickle cell disease. As one of his studies enters the second phase, he’s focused on seeing the impact of an intravenous citrulline, a nitric oxide booster, on patients with sickle cell disease. Another study has begun to determine if specific genetic mutations that cause prolonged QT, or irregular heartbeats in patients, cause mortality, as sickle cell patients are predisposed to cardiac episodes.

It is Dr. Majumdar’s hope that the hematology team at Children’s National will also continue training the next generation of providers to advance research, education and clinical aspects of the field. To those looking to join the specialty, Dr. Majumdar suggests keeping an open mind when it comes to collaborating with colleagues. “My dad always said to my siblings and I that ‘to break one stick is easy, but to break three sticks is harder’ and really impressed upon us that we’re stronger together,” he says. “By working together, we’re more likely to produce the results that we’re looking for.”

Being located in the nation’s capital, providers at Children’s National are accustomed to seeing a diverse array of patients. For Dr. Majumdar, this presents a unique opportunity. “Meeting and interacting with different patients and families was really appealing when I decided to come to Children’s National. The variety of cases we see in the Division of Hematology can definitely present new challenges, but it’s also more rewarding,” he says.

Working with the pediatric population is also a passion of his. “Children are resilient and tend to bounce back quickly,” Dr. Majumdar says. “As a parent, I try to empathize with treatment concerns and always treat every child as if they were my own. I’m always going to make sure it’s the best level of care possible.”

Research and Education Week honors innovative science

April 19, 2019

Billie Lou Short, M.D., received the Ninth Annual Mentorship Award in Clinical Science.

People joke that Billie Lou Short, M.D., chief of Children’s Division of Neonatology, invented extracorporeal membrane oxygenation, known as ECMO for short. While Dr. Short did not invent ECMO, under her leadership Children’s National was the first pediatric hospital to use it. And over decades Children’s staff have perfected its use to save the lives of tiny, vulnerable newborns by temporarily taking over for their struggling hearts and lungs. For two consecutive years, Children’s neonatal intensive care unit has been named the nation’s No. 1 for newborns by U.S. News & World Report. “Despite all of these accomplishments, Dr. Short’s best legacy is what she has done as a mentor to countless trainees, nurses and faculty she’s touched during their careers. She touches every type of clinical staff member who has come through our neonatal intensive care unit,” says An Massaro, M.D., director of residency research.

For these achievements, Dr. Short received the Ninth Annual Mentorship Award in Clinical Science.

Anna Penn, M.D., Ph.D., has provided new insights into the central role that the placental hormone allopregnanolone plays in orderly fetal brain development, and her research team has created novel experimental models that mimic some of the brain injuries often seen in very preterm babies – an essential step that informs future neuroprotective strategies. Dr. Penn, a clinical neonatologist and developmental neuroscientist, “has been a primary adviser for 40 mentees throughout their careers and embodies Children’s core values of Compassion, Commitment and Connection,” says Claire-Marie Vacher, Ph.D.

For these achievements, Dr. Penn was selected to receive the Ninth Annual Mentorship Award in Basic and Translational Science.

The mentorship awards for Drs. Short and Penn were among dozens of honors given in conjunction with “Frontiers in Innovation,” the Ninth Annual Research and Education Week (REW) at Children’s National. In addition to seven keynote lectures, more than 350 posters were submitted from researchers – from high-school students to full-time faculty – about basic and translational science, clinical research, community-based research, education, training and quality improvement; five poster presenters were showcased via Facebook Live events hosted by Children’s Hospital Foundation.

Two faculty members won twice: Vicki Freedenberg, Ph.D., APRN, for research about mindfulness-based stress reduction and Adeline (Wei Li) Koay, MBBS, MSc, for research related to HIV. So many women at every stage of their research careers took to the stage to accept honors that Naomi L.C. Luban, M.D., Vice Chair of Academic Affairs, quipped that “this day is power to women.”

Here are the 2019 REW award winners:

2019 Elda Y. Arce Teaching Scholars Award
Barbara Jantausch, M.D.
Lowell Frank, M.D.

Suzanne Feetham, Ph.D., FAA, Nursing Research Support Award
Vicki Freedenberg, Ph.D., APRN, for “Psychosocial and biological effects of mindfulness-based stress reduction intervention in adolescents with CHD/CIEDs: a randomized control trial”
Renee’ Roberts Turner for “Peak and nadir experiences of mid-level nurse leaders”

2019-2020 Global Health Initiative Exploration in Global Health Awards
Nathalie Quion, M.D., for “Latino youth and families need assessment,” conducted in Washington
Sonia Voleti for “Handheld ultrasound machine task shifting,” conducted in Micronesia
Tania Ahluwalia, M.D., for “Simulation curriculum for emergency medicine,” conducted in India
Yvonne Yui for “Designated resuscitation teams in NICUs,” conducted in Ghana
Xiaoyan Song, Ph.D., MBBS, MSc, “Prevention of hospital-onset infections in PICUs,” conducted in China

Ninth Annual Research and Education Week Poster Session Awards

Basic and Translational Science
Faculty: Adeline (Wei Li) Koay, MBBS, MSc, for “Differences in the gut microbiome of HIV-infected versus HIV-exposed, uninfected infants”
Faculty: Hayk Barseghyan, Ph.D., for “Composite de novo Armenian human genome assembly and haplotyping via optical mapping and ultra-long read sequencing”
Staff: Damon K. McCullough, BS, for “Brain slicer: 3D-printed tissue processing tool for pediatric neuroscience research”
Staff: Antonio R. Porras, Ph.D., for “Integrated deep-learning method for genetic syndrome screening using facial photographs”
Post docs/fellows/residents: Lung Lau, M.D., for “A novel, sprayable and bio-absorbable sealant for wound dressings”
Post docs/fellows/residents: Kelsey F. Sugrue, Ph.D., for “HECTD1 is required for growth of the myocardium secondary to placental insufficiency”
Graduate students: Erin R. Bonner, BA, for “Comprehensive mutation profiling of pediatric diffuse midline gliomas using liquid biopsy”
High school/undergraduate students: Ali Sarhan for “Parental somato-gonadal mosaic genetic variants are a source of recurrent risk for de novo disorders and parental health concerns: a systematic review of the literature and meta-analysis”

Clinical Research
Faculty: Amy Hont, M.D., for “Ex vivo expanded multi-tumor antigen specific T-cells for the treatment of solid tumors”
Faculty: Lauren McLaughlin, M.D., for “EBV/LMP-specific T-cells maintain remissions of T- and B-cell EBV lymphomas after allogeneic bone marrow transplantation”

Staff: Iman A. Abdikarim, BA, for “Timing of allergenic food introduction among African American and Caucasian children with food allergy in the FORWARD study”
Staff: Gelina M. Sani, BS, for “Quantifying hematopoietic stem cells towards in utero gene therapy for treatment of sickle cell disease in fetal cord blood”
Post docs/fellows/residents: Amy H. Jones, M.D., for “To trach or not trach: exploration of parental conflict, regret and impacts on quality of life in tracheostomy decision-making”
Graduate students: Alyssa Dewyer, BS, for “Telemedicine support of cardiac care in Northern Uganda: leveraging hand-held echocardiography and task-shifting”
Graduate students: Natalie Pudalov, BA, “Cortical thickness asymmetries in MRI-abnormal pediatric epilepsy patients: a potential metric for surgery outcome”
High school/undergraduate students: Kia Yoshinaga for “Time to rhythm detection during pediatric cardiac arrest in a pediatric emergency department”

Community-Based Research
Faculty: Adeline (Wei Li) Koay, MBBS, MSc, for “Recent trends in the prevention of mother-to-child transmission (PMTCT) of HIV in the Washington, D.C., metropolitan area”
Staff: Gia M. Badolato, MPH, for “STI screening in an urban ED based on chief complaint”
Post docs/fellows/residents: Christina P. Ho, M.D., for “Pediatric urinary tract infection resistance patterns in the Washington, D.C., metropolitan area”
Graduate students: Noushine Sadeghi, BS, “Racial/ethnic disparities in receipt of sexual health services among adolescent females”

Education, Training and Program Development
Faculty: Cara Lichtenstein, M.D., MPH, for “Using a community bus trip to increase knowledge of health disparities”
Staff: Iana Y. Clarence, MPH, for “TEACHing residents to address child poverty: an innovative multimodal curriculum”
Post docs/fellows/residents: Johanna Kaufman, M.D., for “Inpatient consultation in pediatrics: a learning tool to improve communication”
High school/undergraduate students: Brett E. Pearson for “Analysis of unanticipated problems in CNMC human subjects research studies and implications for process improvement”

Quality and Performance Improvement
Faculty: Vicki Freedenberg, Ph.D., APRN, for “Implementing a mindfulness-based stress reduction curriculum in a congenital heart disease program”
Staff: Caleb Griffith, MPH, for “Assessing the sustainability of point-of-care HIV screening of adolescents in pediatric emergency departments”
Post docs/fellows/residents: Rebecca S. Zee, M.D., Ph.D., for “Implementation of the Accelerated Care of Torsion (ACT) pathway: a quality improvement initiative for testicular torsion”
Graduate students: Alysia Wiener, BS, for “Latency period in image-guided needle bone biopsy in children: a single center experience”

View images from the REW2019 award ceremony.

Children’s National physicians provide education at 46th Annual Sickle Cell Disease Association of America Convention

November 30, 2018

Andrew Campbell, M.D., presented at the conference on the topics of hydroxyurea (HU) and blood transfusions.

More than 600 researchers, physicians, nurses, social workers and individuals living with sickle cell disease (SCD) and sickle cell trait (SCT) gathered in Baltimore for the 46th Annual National Sickle Cell Disease Association of America (SCDAA) Convention in mid-October. Children’s National physicians Andrew Campbell, M.D., director of the Comprehensive Sickle Cell Program, and Deepika Darbari, M.D., were among the speakers at the four-day convention discussing the latest scientific research and clinical information through seminars, panel discussions and symposiums.

Dr. Campbell presented at the conference on the topics of hydroxyurea (HU) and blood transfusions. He spoke to families about the benefits of HU, explaining how it lowers the percentage of sickle cells in the blood and decreases the overall inflammatory process. He stressed the importance of HU as a medication used in the prevention of SCD and emphasized the potential decrease in organ damage and increased overall survival rate of SCD patients. The importance of minor antigen blood group phenotyping was also discussed, as it can decrease the chance of patients rejecting future blood transfusions by developing new red blood cell antibodies.

“The indications for blood transfusions in the acute ‘ill’ setting can be life-saving and improve oxygen delivery and overall clinical outcomes within sickle cell complications, including acute chest syndrome, stroke and splenic sequestration. Approximately 10 to 15 percent of patients will need monthly blood transfusions for primary (i.e. stroke, patients with abnormal brain vessel TCD velocities >200cm/s) and secondary (i.e. patients with a previous stroke, multiple splenic sequestrations, recurrent priapism, recurrent acute chest syndromes) sickle cell complications,” explains Dr. Campbell.

Dr. Darbari, a hematologist at Children’s National, educated medical colleagues on chronic pain in SCD and emphasized the increase in pain from adolescence to adulthood.

“During childhood, pain in SCD is considered a consequence of discrete episodes of vaso-occlusion. Such vaso-occlusion is a complex process in which abnormally shaped (so-called ‘sickled’) red blood cells episodically obstruct the microcirculation thereby causing distal ischemia and resultant pain. As patients get older, mechanisms such as peripheral neuropathic or centralization may play important roles in transition and maintenance of chronic pain. It is important to consider underlying mechanisms contributing to pain when managing a patient with SCD,” states Dr. Darbari. She referenced her coauthored and published Analgesic, Anesthetic and Addiction Clinical Trial Translations Innovations Opportunities and Networks (ACTTION)-American Pain Society Taxonomy (AAPT) criteria for classifying chronic pain in SCD and how useful this tool can be for physicians in the treatment of patients with SCD.

Both Drs. Campbell and Darbari shared their expertise on different facets of SCD with families and medical professionals alike. Their impactful work is paving the way for future treatments and pain management techniques for treating patients living with SCD and their families.

Children’s National represented at ASCAT conference in London

October 30, 2018

From left to right: Lisa Thaniel, Ph.D., Brittany Moffitt, Deepika Darbara, M.D., Steven Hardy, Ph.D., Andrew Campbell, M.D., Barbara Speller-Brown, DNP, Stefanie Margulies and Karen Smith-Wong all represented Children’s National at the ASCAT Conference in London.

Deepika Darbari, M.D., Andrew Campbell, M.D., and Steven Hardy, Ph.D., represented Children’s National at the Annual Sickle Cell Disease and Thalassemia (ASCAT) Conference in London in late October. The theme of this year’s conference was Sickle Cell Disease and Thalassemia: Bridging the Gap in Care and Research.

Dr. Darbari, a Children’s National hematologist, was the featured Grand Rounds speaker and led a pain management symposium. Dr. Darbari studies complications of sickle cell disease with an emphasis on pain. She conducts clinical and translational studies to better understand sickle cell pain and its management. She addressed the topics of pain mechanisms and phenotypes in sickle cell disease during her symposium.

Dr. Campbell, Director of the Comprehensive Sickle Cell Disease Program at Children’s National, has served on the steering committee for this annual international conference for the past two years, working alongside colleagues from across the globe to bring together multiple experts who work with children with blood disorders. Dr. Campbell remarks, “I’m pleased to promote and be a part of [this conference] because it’s one of the best sickle cell/thalassemia conferences in the world pushing the field forward with international representation.” He spoke at the conference during Dr. Darbari’s symposium, discussing sickle cell disease pain around the globe.

Dr. Hardy, a pediatric psychologist in the divisions of Blood and Marrow Transplant, Blood Disorders (Hematology) and Oncology and the Center for Cancer and Blood Disorders at Children’s National, also presented at the conference on his abstract “Computerized Working Memory Training Improves Cognition in Youth with Sickle Cell Disease.” His abstract received the Best Oral Abstract Award at the conference and was awarded a 500 pound prize. In his work at Children’s National, Dr. Hardy provides evidence-based psychological assessments and treatments for children with cancer, sickle cell disease and other blood disorders, as well as those patients undergoing bone marrow transplants.

Poster presentations were also given by Barbara Speller Brown, NP, DNP, Lisa Thaniel, MSW, Ph.D., Brittany Moffitt, MSW, and Stefanie Margulies, senior clinical research coordinator, all representing Children’s National at the ASCAT Conference.

Maureen E. Lyon, Ph.D., ABPP, lauded for outstanding excellence in patient-centered advance care planning

October 19, 2018

Maureen E. Lyon, Ph.D., a principal investigator at Children’s Center for Translational Science, will be honored with a “Recognition Award for Excellence and Innovation in Research” by Respecting Choices for outstanding excellence in patient-centered advance care planning and shared decision-making.

Respecting Choices will present the award on Oct. 26, 2018, during its “National Share the Experience Conference” in Bloomington, Minnesota.

Lyon’s expertise is in advance care planning and shared decision-making for children and adolescents with life-threatening illnesses and their families, a field that has transformed in recent decades in order to pave better paths forward for difficult but necessary conversations.

“It came from my clinical experience,” Lyon says. “In the early days of the human immunodeficiency virus (HIV) epidemic in the U.S., everything, absolutely everything, was done to keep the kids alive in the hopes that some new drug would come around the corner, and we could bring them back from the brink. I remember one of the young boys saying to his case manager that he didn’t want all of these interventions. But he hadn’t told his family.”

That young man’s eye-opening comments – and learning that Children’s National Health System had a policy that teenagers were to be included in conversations about their own advance care planning – inspired Lyon to conduct a series of surveys involving adolescents, families and clinicians.

“I remember sitting down with friends and saying ‘There must be a better way to do this. Everyone is afraid to broach the subject,’ ” Lyon recalls. So, she conducted surveys of all healthy kids coming through Children’s adolescent clinic and kids diagnosed with HIV, cancer and sickle cell disease.

“It turned out the kids did want to talk about it. That was the first thing. Families told us they wanted help breaking the ice. Physicians felt it wasn’t their role – many doctors felt their role was to save people – or, they didn’t have the training,” she says.

Through a series of focus groups with youths living with HIV, families and community members, Lyon adapted the adult-centric Respecting Choices model to create a three-session intervention to better meet the advance care planning needs of youths and adolescents living with HIV.

Lyon’s recent work includes a single-blinded, randomized study published Oct. 19, 2018, in Pediatrics that finds the more families understand the end-of-life treatment preferences expressed by adolescents living with HIV, the less likely these youth are to suffer HIV-related symptoms, compared with youths whose families do not understand their end-of-life care goals.

She also has adapted the Respecting Choices intervention to facilitate its use with children diagnosed with cancer. More recently, she has adapted the model for use by parents of children with rare diseases who cannot communicate on their own.

“For the other life-threatening health conditions, we worked to support adolescents in expressing their advance care planning choices in their own voices. With rare diseases, we’re shifting gears,” she adds.

Published research indicates a sizable proportion of pediatric patients who die in hospitals now have confirmed or suspected rare diseases, she says. During a pilot involving seven families, many parents multitasked during the conversations, taking pauses to attend to various alarms as they sounded, to complete regular feedings and to contend with their child’s petit mal seizures.

“The level of burden of taking care of these children with terminal illnesses was pretty overwhelming,” she says. “Still, families were not too burdened to participate in advance care planning, but first wanted to identify their priority palliative care needs and to develop a support plan to meet those needs. We also had more fathers involved.”

Q&A with leading blood and marrow transplantation specialist

January 19, 2018

Children’s National Health System is proud to be the home of some of the world’s leading hematology experts, including Allistair Abraham, M.D., blood and marrow transplantation specialist within the Center for Cancer and Blood Disorders, who was recently selected to participate in the American Society of Hematology-Harold Amos Medical Faculty Development Program (ASH-AMFDP). Designed to increase the number of underrepresented minority scholars in the field of hematology, the ASH-AMFDP has awarded Dr. Abraham $420,000 that includes an annual stipend and research grant over the next four years. Here, Dr. Abraham tells us more about his research and what it means for the future of patients with sickle cell disease.

Q: What does this award mean to you?
A: This award comes at a critical time in my early career as I learn how to become an independent grant-funded researcher. It gives me an opportunity to dedicate 70 percent of my time to research for the next four years, during which I will hone my research skills and have access to highly accomplished mentors at Children’s National and from the ASH-AMFDP faculty.

Q: Your research for this grant focuses on improving curative hematopoietic stem cell transplantation for sickle cell disease. Why do they need to be improved?

A: Sickle cell disease causes significant health problems for children, which can worsen as they become adults, and even shorten their lifespan. Curative therapies to date are limited for many patients since most do not have a suitably matched donor for a curative bone marrow transplant. Many of us in the field hope we can provide a safe option for as many patients as possible so they can be cured in childhood and not have to face the negative impacts of the disease as they grow older.

Q: You will also be evaluating virus-specific T-cell (VST) recovery after transplantation. What will this mean for patients?

A: As we explore more transplant donor options such as unrelated donors and mismatched family donors, we have observed delayed immune system recovery. Viral infections are particularly problematic, as they can be life-threatening and respond poorly to available medications. Ultimately, a recovered immune system would address the infection problem. We hope to generate immune cells that are protective against viruses from the transplant donor and give them to patients as part of their transplant procedure.

Q: How do you envision your research improving the future of treatment for sickle cell patients?

A: My hope is that we get closer to having a safer transplant option for most patients who, despite optimal therapy, continue to suffer from complications of sickle cell disease. Ideally, these transplants would not only be widely available, but the treatment would also be simplified to the point where most of the therapy could take place in an outpatient setting.

Q: Why did you decide to work in this field?

A: Sickle cell disease has lagged behind other disorders in terms of new treatment strategies for quite some time. I experienced this as a medical trainee and struggled when parents would ask me to “do something” for their child when most of the time all I could offer was pain medication. In the last five years or so, there has been more focus on sickle cell disease from the field and the community, so now is the time to work toward developing a widely available cure.

Leading blood disorder experts from Children’s National convene in Atlanta for 59th American Society of Hematology annual meeting

January 9, 2018

In early December 2017, more than 25,000 attendees from around the world, including several experts from Children’s National Health System, convened in Atlanta for the American Society of Hematology’s annual meeting and exposition, the world’s premiere hematology event. For four days, physicians, nurses and other healthcare professionals attended sessions, listened to speakers and collaborated with each other, focusing on enhancing care and treatment options for patients with blood disorders and complications, including leukemia, sickle cell disease and transplants.

As nationally recognized leaders in the field, the Children’s National team led educational sessions and gave keynote speeches highlighting groundbreaking work underway at the hospital, which sparked engaging and productive conversations among attendees. Highlights from the team include:

Catherine Bollard, M.D., M.B.Ch.B., Director of the Center for Cancer and Immunology Research, educating global experts on cellular immunotherapy for non-Hodgkin lymphoma.
Kirsten Williams, M.D., bone and marrow transplant specialist, presenting novel work utilizing TAA-specific T cells for hematologic malignancies with Dr. Bollard, the sponsor of this first-in-man immunotherapy; moderating sessions on immunotherapy and late complications and survivorship after hematopoietic stem cell transplantation (HSCT).
Allistair Abraham, M.D., blood and marrow transplantation specialist, moderating a session on hemoglobinopathies.
David Jacobsohn, M.D., ScM, Division Chief of Blood and Marrow Transplantation, moderating a session on allogeneic transplantation results.
Naomi Luban, M.D., hematologist and laboratory medicine specialist, introducing a plenary speaker on the application of CRISPR/Cas 9 technology for development of diagnostic reagents for diagnosis of alloimmunization from stem cells.

Additional presentations from the Children’s National team included an oral abstract on the hospital’s work to improve hydroxyurea treatment for sickle cell disease by pediatric resident Sarah Kappa, M.D., who also received an ASH Abstract Achievement Award; another key session on hemoglobinopathies moderated by Andrew Campbell, M.D., director of the Comprehensive Sickle Cell Disease Program; an abstract on the clinical use of CMV- specific T-cells derived from CMV-native donors, presented by Patrick Hanley, Ph.D.; a leukemia study presented by Anne Angiolillo, M.D., oncologist; and a presentation about pain measurement tools in sickle cell disease by Deepika Darbari, M.D., hematologist.

A big transformation starting with small changes from within

January 3, 2018

“It was novel and exciting to see managers, chiefs, and even front-line staff identify potential ‘projects’ that could potentially fall under this work,” said . Rahul Shah, M.D., Vice President and Chief Quality & Safety Officer. “The change, as the executive leadership hoped, was organic and recognized a true cultural shift.”

Like many health care systems, Children’s National realizes that in order to provide top care to patients, the hospital and health system have to constantly evolve. In 2013, across the country, the importance of a strong safety and quality program were growing and the organization’s executive leadership made it a key priority to deliver the best care and follow best practices to ensure that we were driving value in healthcare. Children’s National embarked on a long-term journey, known as Transformation 2018, that would ultimately prove successful in improving quality of care while reducing costs across the hospital system.

When starting this initiative, the leaders at Children’s realized that in order to successfully transition from volume-based to value-based care, the change had to occur organically – in other words, led by our own internal teams. Continuously striving to be on the forefront of quality and safety innovation, Children’s National has always valued a culture that empowers staff at all levels to be part of transformations, and this initiative was no different. Rahul Shah, M.D., Vice President and Chief Quality & Safety Officer, and Linda Talley, R.N., Vice President and Chief Nursing Officer, would lead the effort.

Rather than setting their sights on first targeting populations of patients, as is common practice, the team aimed to make an impact at a more micro level by focusing on particular diseases or diagnoses. This strategy allowed the initiative to start on a small scale and involve staff in numerous divisions across the health system, which would eventually pave the way for bolder and broader population health initiatives.

By integrating changes through individual initiatives, Children’s National achieved a combination of quality and cost savings in a number of disease areas, including autism, testicular torsion, idiopathic posterior spinal fusion and sickle cell disease vaso-occlusive crisis.

As the benefits of this effort were realized, leaders throughout the hospital approached the transformation team to see how they too could be a part of the project to transition their divisions.

“It was novel and exciting to see managers, chiefs, and even front-line staff identify potential ‘projects’ that could potentially fall under this work,” said Dr. Shah. “The change, as the executive leadership hoped, was organic and recognized a true cultural shift.”

Children’s National Health System advances sickle cell disease cure through Doris Duke Charitable Foundation grant

October 10, 2017

Sickle-Cell-Blood-Cells

An innovative Children’s National Health System project aimed at improving the only proven cure for sickle cell disease – hematopoietic cell transplantation – will receive more than $550,000 in funding from the Doris Duke Charitable Foundation’s inaugural Sickle Cell Disease/Advancing Cures Awards, which provides grants to advance curative approaches for sickle cell disease. The study, a three-year, multi-center trial that will study a low intensity, chemotherapy-free transplantation approach to cure children with sickle cell disease using a matched related donor, is led by Allistair Abraham, M.D., blood and marrow transplantation specialist, and Robert Nickel, M.D., hematologist, and is one of seven projects receiving approximately $6 million total through the awards.

While transplantation using a matched sibling donor today has a high cure rate (>90 percent) for sickle cell disease, traditional transplant approaches have many risks and side effects in both the short and long term. The study will examine if a chemotherapy-free approach can lead to a successful transplant without resulting in graft-versus-host disease (GVHD). GVHD is one of the most challenging complications of a transplant, in which the transplant immune cells attack the patient’s body. The researchers anticipate that this new transplant approach will be so well tolerated that patients’ quality of life will be maintained and improved throughout the process, with most of the care administered in a clinic setting.

“This approach has proven to be effective for adults with sickle cell disease, so we are grateful for the opportunity to begin this important trial for children thanks to the Doris Duke Charitable Foundation,” says Dr. Abraham. “Children with sickle cell disease are in need of innovative treatments, and we look forward to finding more solutions that improve the quality of life for these patients.”

“Advancing treatment for sickle cell patients to the point where they can live free of the disease is our top priority,” says Dr. Nickel, who is also an assistant professor of pediatrics at the George Washington University School of Medicine and Health Sciences. “This funding is critical to our study and it will accelerate the timeline to achieve the goal of a well-tolerated and safe cure for children with sickle cell disease.”

Matthew Hsieh, M.D., who helped pioneer this work at the National Institute of Health in adults, and Greg Guilcher, M.D., who has used this transplant approach in children, are key collaborators on the project.

The study is projected to begin in December 2018 and continue for three years. The Comprehensive Sickle Cell Disease Program at Children’s National is among the largest in the country, treating more than 1,400 children and young adults with all types of sickle cell disease. Children’s National also offers the largest, most comprehensive blood disorders team in the Washington, D.C., area.

Children’s welcomes hematology leaders, expands expertise

June 21, 2017

The Center for Cancer and Blood Disorders at Children’s National is emerging as a leader in Pediatric Hematology, and the recruitment of two prominent physician-scientists to our Division of Hematology and Sickle Cell Disease Program is evidence of that growth and presence on the national platform. Joining the faculty in June are:

Suvankar (Seve) Majumdar, M.D.
Division Chief, Hematology
Dr. Majumdar was born in Zambia, attended the University of Zimbabwe College of Health Sciences and conducted his postdoctoral medical education at the University of Mississippi. Dr. Majumdar is currently the director of the Comprehensive Pediatric Sickle Cell Program at the University of Mississippi Medical Center. He previously directed the Mississippi Hemophilia Treatment Center and is a recognized leader in hematology and sickle cell disease. In addition to his broad clinical expertise, Dr. Majumdar is an accomplished researcher, and a principal investigator of NIH-funded studies.

Andrew (Drew) Campbell, M.D.
Director, Sickle Cell Disease Program
Dr. Campbell’s distinguished training and career path began at Morehouse College. He continued medical school at Case Western Reserve University and completed post graduate training at Massachusetts General Hospital (Harvard) and Lurie Children’s Hospital (Northwestern University). He has been director of the Comprehensive Sickle Cell Center at the University of Michigan since 2005. His research interests span several topics in sickle cell disease including pulmonary complications, fetal hemoglobin switching in transgenic sickle cell mice, phenotype/genotype relationships and renal complications.

The Children’s National Division of Hematology includes the most comprehensive pediatric blood disorders team in the Washington, D.C., area. The Sickle Cell Disease Program is among the largest in the country, treating more than 1,400 children and young adults with all types of sickle cell disease.

Steven Hardy presents sickle cell findings at ASPHO annual meeting

May 12, 2017

Steven Hardy, Ph.D.

Steven Hardy, Ph.D. recently joined medical leaders in Montréal for the American Society of Pediatric Hematology/Oncology’s 30^th Annual Meeting, where he and his team presented key findings from their cognitive and psychosocial research program involving youth with Sickle Cell Disease (SCD).
The first presentation, “Processing Speed and Academic Fluency in Youth With Sickle Cell Disease,” showed that, on average, children with SCD are less able to quickly and efficiently process information than their healthy counterparts. This weakness negatively impacted their academic performance, particularly in math fluency, and increased the children’s odds of having to repeat a grade in school.

A second presentation, “Quality of Life and School Absences in Children With Sickle Cell Disease With and Without Asthma,” explored the differences in quality of life between children with SCD only and children with both SCD and asthma (a common comorbidity). Dr. Hardy and his team found that children with both diseases tend to experience a greater impact on quality of life. Other factors – such as the child’s IQ and the family’s financial, material and social resources – moderated this risk.

The presentations were met with enthusiasm from renowned medical professionals from around the world, all of whom came together for collaborative and constructive sessions to move the needle on pediatric care.

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