Dr. Vittorio studies various aspects of liver health and transplantation, particularly in children and adolescents. She explores how to enhance adherence to medications in young transplant patients and examines the use of genetic testing to identify inherited liver conditions that can significantly impact treatment options. Additionally, Dr. Vittorio investigates quality measures for liver transplant care, aiming to standardize patient evaluations and improve overall care processes across transplant centers. Her research also includes the effects of specific treatments on patients with severe liver diseases and the transition from pediatric to adult care for young liver transplant recipients.
Key findings
In a study of tacrolimus adherence in young transplant patients, a once-daily formulation showed improved adherence, though it did not reach statistical significance due to a small sample size.
A genetic analysis found a definitive diagnosis in 5.7% of patients with chronic liver diseases, highlighting the value of exome sequencing in managing inherited conditions.
In an ongoing trial of odevixibat for treating a severe inherited liver disease, most children experienced reduced bile acid levels and improved quality of life over 24 weeks.
Among pediatric patients undergoing liver resection, 14.6% faced 30-day readmission, largely due to infections, suggesting a need for better infection prevention measures.
Children who received living donor livers had significantly lower rates of rejection and better graft survival, reinforcing the advantages of living donations.
Frequently asked questions
Does Dr. Vittorio study liver diseases in children?
Yes, Dr. Vittorio focuses on pediatric liver diseases, particularly the management of liver transplant recipients and genetic conditions.
What treatments has Dr. Vittorio researched?
She has studied the effects of various treatments, including odevixibat for progressive familial intrahepatic cholestasis and tacrolimus for transplant medication adherence.
Is Dr. Vittorio's work relevant to young patients undergoing liver transplants?
Absolutely. Her research addresses crucial topics such as medication adherence, transition care for young transplant recipients, and the advantages of living donor transplants.
Can genetic testing improve liver disease management?
Yes, Dr. Vittorio's research demonstrates that genetic testing can identify inherited liver diseases, which can lead to better-targeted treatments and family screening.
What are the current gaps in pediatric to adult liver care?
Dr. Vittorio's surveys reveal that pediatric centers often have more resources for transitioning young patients to adult care, indicating a need for better collaboration and strategies to support these patients.
Publications in plain English
Quality measures in pre-liver transplant care by the Practice Metrics Committee of the American Association for the Study of Liver Diseases.
2024
Hepatology (Baltimore, Md.)
Brahmania M, Kuo A, Tapper EB, Volk ML, Vittorio JM +26 more
Plain English A liver disease specialist committee developed 41 quality measures covering the entire pre-transplant journey — from when a doctor first refers a patient through organ acceptance — to reduce variation in how transplant centers evaluate and list patients. The measures span structure, process, and outcomes, with patients rating "understanding the transplant process" as most important. This framework gives transplant programs a concrete tool for local quality improvement that goes beyond what's already tracked for regulatory reporting.
The use of once-daily LCP-Tacrolimus with adolescent and young adult solid organ transplant recipients.
2024
Pediatric transplantation
Householder S, Ramakrishnan A, Chen JK, Gorsch L, Tsapepas D +3 more
Plain English This study tested whether a once-daily tacrolimus formulation (LCP-tacrolimus) improved medication adherence in young transplant patients aged 12 and up, who are known to struggle with daily medications. Switching to the once-daily version showed numerically better adherence by both provider assessment and a standard measurement tool, though the improvements did not reach statistical significance — likely because the group was too small. The drug was safe and effective, but did not reduce pill burden and sometimes cost more, so it may be best suited for carefully selected patients.
Current approach to health care transition and integration into adult care for pediatric liver transplant recipients: A call for partnership.
2023
Clinical transplantation
King LY, Kosmach-Park B, Parish A, Niedzwiecki D, Jackson WE +1 more
Plain English Surveys of 40 pediatric and 79 adult liver transplant programs revealed a major gap: pediatric centers are far more likely to have formal transition policies, clinics, and readiness tools than adult centers, even though young patients are at high risk for rejection and graft loss during the handoff period. Both sides agreed on the key barriers — patients who disengage, missed appointments, and limited staff. The authors call for structured partnerships between pediatric and adult teams to close this gap.
Interim results from an ongoing, open-label, single-arm trial of odevixibat in progressive familial intrahepatic cholestasis.
2023
JHEP reports : innovation in hepatology
Thompson RJ, Artan R, Baumann U, Calvo PL, Czubkowski P +36 more
Plain English This open-label extension study followed children and new patients with progressive familial intrahepatic cholestasis treated with odevixibat, a pill that blocks bile acid recycling in the gut. Across all patient groups, the drug sustained reductions in blood bile acid levels and reduced itching over 24 weeks, with most side effects being mild. The results support odevixibat as a well-tolerated option that addresses both the biochemical and quality-of-life burden of this severe inherited liver disease.
The diagnostic yield of exome sequencing in liver diseases from a curated gene panel.
2023
Scientific reports
Kong XF, Bogyo K, Kapoor S, Shea PR, Groopman EE +16 more
Plain English Researchers analyzed genetic data from 758 patients with chronic liver disease, looking for mutations in 502 genes linked to inherited liver conditions. After careful filtering, they found a definitive genetic diagnosis in 5.7% of patients — a meaningful number given that many of these conditions have specific treatment implications, including family screening and preventive care. The study shows that exome sequencing can uncover inherited causes of liver disease, but requires multiple rounds of expert review to avoid false results.
Risk Factors for 30-Day Unplanned Readmission After Hepatectomy: Analysis of 438 Pediatric Patients from the ACS-NSQIP-P Database.
2021
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract
Kang E, Shin JI, Griesemer AD, Lobritto S, Goldner D +3 more
Plain English Liver removal surgery in children carries real risks, but population-level data on complications are limited. Using a national pediatric surgical database, researchers identified which factors—including wound class and operative time—predict unplanned readmission within 30 days of hepatectomy. These benchmarks help hospitals identify high-risk patients and plan better follow-up care.
Management of Wilson Disease Diagnosed in Infancy: An Appraisal of Available Experience to Generate Discussion.
2020
Journal of pediatric gastroenterology and nutrition
Valentino PL, Roberts EA, Beer S, Miloh T, Arnon R +2 more
Plain English Genetic testing is increasingly identifying Wilson disease — a copper metabolism disorder — in infants and even before birth, long before the condition causes symptoms. Because there is almost no published guidance on managing babies diagnosed this way, the authors present a case and propose a stepwise treatment algorithm based on the physiology of copper in early development. Their goal is to start a conversation among specialists and build evidence-based best practices for this emerging clinical situation.
Durable Clinical and Immunologic Advantage of Living Donor Liver Transplantation in Children.
2018
Transplantation
Przybyszewski EM, Verna EC, Lobritto SJ, Martinez M, Vittorio JM +5 more
Plain English Children who receive livers from living donors—usually parents—have better long-term outcomes than those receiving deceased-donor organs, but living donor transplants remain rare in the U.S. This study found that living-donor recipients also showed immunological advantages, with lower rejection rates likely tied to the partial genetic match with a parent donor. The data make a strong case for expanding living donor programs for children.
Roux-en-Y enterolith leading to obstruction and ischemic necrosis after pediatric orthotopic liver transplantation.
2018
Pediatric transplantation
Quillin RC, Bongu A, Kasper V, Vittorio JM, Martinez M +3 more
Plain English A 12-year-old boy who had received a liver transplant as an infant developed a stone in his intestine that blocked food from moving through his bowel, cutting off blood flow to that section of intestine and causing it to die. Doctors had to remove the damaged intestine and rebuild his surgical connection between the liver and intestine to fix the problem.
**Why it matters:** This rare complication should be on doctors' radar when transplant patients develop fever and stomach pain, and it shows that sometimes fixing the underlying anatomy—not just treating the stone—prevents the problem from happening again.
Anakinra-Induced Acute Liver Failure in an Adolescent Patient with Still's Disease.
2016
Pharmacotherapy
Taylor SA, Vittorio JM, Martinez M, Fester KA, Lagana SM +2 more
Plain English Anakinra, an anti-inflammatory drug used to treat certain autoimmune conditions, caused acute liver failure in a teenage boy being treated for adult-onset Still's disease. The liver failure resolved when the drug was stopped. While liver toxicity from anakinra had been reported in adults, this appears to be the first documented case of severe acute liver failure in an adolescent, underscoring the need to monitor liver function closely in any patient on this medication.
Mercedes Martinez Adam D Griesemer Steven J Lobritto Steven Lobritto Elizabeth C Verna Sarah Householder Adarsh Ramakrishnan Justin K Chen Lindsey Gorsch Demetra Tsapepas
Physician data sourced from the
NPPES NPI Registry
.
Publication data from
PubMed
.
Plain-English summaries generated by AI.
Not medical advice.