Publications by authors named "Michela Bravi"

Guidelines for managing hepatic artery thrombosis (HAT) and stenosis (HAS) after pediatric liver transplantation (pLT) are lacking, with heterogeneous local practices. This study aims to evaluate management practices for HAT and HAS after pLT. An online and paper-based survey was sent to 36 international pLT centers.

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Background And Aims: Portal vein obstruction (PVO) is a known complication after pediatric liver transplantation (pLT). Effective management strategies are crucial in improving patient outcomes. This study investigated the various practice patterns related to PVO management to clarify the degree of consensus on the diverse facets of care involved in addressing PVO after pLT.

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Preemptive therapy (PET) is safe and effective in controlling Cytomegalovirus (CMV) infection after pediatric liver transplantation (LT) and allows to observe the kinetics of quantitative CMV-DNA viral load till it reaches the treatment thresholds. While early detection of low-to-moderate CMV-DNA levels may not indicate active viral replication, awaiting the viral load to exceed the treatment threshold may lead to viremic breakthroughs and CMV disease. We assessed the capacity of quantitative CMV-RNA (UL21.

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Article Synopsis
  • Solid organ transplant candidates and recipients are highly vulnerable to infections due to pre-existing diseases and immunosuppressive treatments they undergo post-transplant.
  • Vaccination programs are crucial for preventing infections in this population, especially for children who may have an immature immune system and incomplete vaccination status before receiving a transplant.
  • The review emphasizes the importance of ensuring comprehensive vaccination coverage for pediatric patients prior to transplantation to enhance post-transplant health outcomes.
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Teduglutide is a glucagon-like peptide 2 (GLP-2) analog which acts by increasing intestinal absorption of the remnant bowel for children with short bowel syndrome (SBS) dependent on parenteral nutrition. We present a 13-year-old male patient with type 2 SBS (55 cm of jejunum) from necrotizing enterocolitis on full oral feeding from the age of 12 months. Because of faltering growth from the age of 11 despite oral hyperphagia, he started Teduglutide at the standard dose.

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Article Synopsis
  • Hepatic artery complications (HACs) after pediatric liver transplantation can lead to significant health issues, and this study aims to understand how common they are, how they are managed, and what outcomes arise from these complications.
  • The research utilizes the international HEPATIC Registry, collecting data on pediatric patients under 18 who experienced HAC within the last 20 years, focusing on survival rates and treatment success.
  • Ethical approval will be obtained from all participating sites, and findings will be shared at conferences and in academic journals, with the study registered on ClinicalTrials.gov (NCT05818644).
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Article Synopsis
  • - The ChilSFree study analyzed immune dynamics in 244 pediatric liver transplant (pLT) patients over a year to find early biomarkers for rejection, using advanced lab techniques to measure soluble immune mediators (SIMs) and immune cells.
  • - Researchers identified six unique SIM signatures that correlated with clinical outcomes, highlighting one specific signature linked to improved rejection-free survival and stable graft function characterized by low pro-inflammatory levels and high regenerative markers.
  • - Findings suggest that these blood SIM signatures could serve as non-invasive, early indicators of rejection risk post-transplant, potentially allowing for more precise immunosuppression management in pediatric patients.
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Article Synopsis
  • - The study investigates portal vein obstruction (PVO) in pediatric liver transplant patients, focusing on its prevalence, treatment practices, and outcomes through a global collaboration of 25 medical centers.
  • - It utilizes a registry to gather data from patients diagnosed with PVO between 2001 and 2021, aiming to measure factors like treatment success and complications following interventions.
  • - Approved by an ethics board, the study plans to share findings in academic journals and conferences, contributing to the understanding of PVO management post-liver transplantation.
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Background: In Fanconi anemia bone marrow failure is the major cause of morbidity and mortality and hematopoietic stem cell transplantation represents the only curative treatment. Liver disease, in terms of elevated liver function tests, as well as benign and malignant liver tumors, occurs especially in case of androgen treatment. We report a unique case of a child with Fanconi anemia with FANCD2 mutation who developed neonatal cryptogenic liver cirrhosis and bone marrow failure.

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Purpose: The management of hepatic hemangioendothelioma (HHE) may be challenging. We aimed to review a large cohort of children who presented to our centers with symptomatic HHE in the last 16 years.

Methods: We collected age at presentation, clinical features, histology, diagnostic process, management and outcome.

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The outcome of HCC after transplantation (OLT) in children is not well known. Unfavorable features based on adult reports may lead to contraindicate OLT even in children. We reviewed a cohort of children with cirrhosis and HCC to evaluate their outcome after primary transplantation.

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Late graft dysfunction (GD) associated with the development of autoantibodies is a common event after pediatric liver transplantation (OLTx) and can present in 2 clinicohistological subsets: de novo autoimmune hepatitis (DNAH) and early chronic rejection (ECR). Sixty out of 247 children developed autoantibodies after OLTx. GD was demonstrated in 22 (37%); based on histology, patients were divided in a DNAH and an ECR group.

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