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BACKGROUND & AIMS: After pediatric liver transplantation (pLT), children undergo life-long immunosuppression since reliable biomarkers for the assessment of rejection probability are scarce. In the multicenter (n = 7) prospective clinical cohort "ChilSFree" study, we aimed to characterize longitudinal dynamics of soluble and cellular immune mediators during the first year after pLT and identify early biomarkers associated with outcome. METHODS: Using a Luminex-based multiplex technique paired with flow cytometry, we characterized longitudinal dynamics of soluble immune mediators (SIMs, n = 50) and immune cells in the blood of 244 patients at eight visits over 1 year: before, and 7/14/21/28 days and 3/6/12 months after pLT. RESULTS: The unsupervised clustering of patients based on SIM profiles revealed six unique SIM signatures associated with clinical outcome. From three signatures linked to improved outcome, one was associated with 1-year-long rejection-free survival and stable graft function and was characterized by low levels of pro-inflammatory SIMs (CXCL8/9/10/12, CCL7, SCGF-ß, sICAM-1), and high levels of regenerative (SCF, TNF-ß) and pro-apoptotic (TRAIL) SIMs (all, p <0.001, fold change >100). Of note, this SIM signature appeared 2 weeks after pLT and remained stable over the entire year, pointing towards its potential as a novel early biomarker for minimizing or weaning immunosuppression. In the blood of these patients, a higher frequency of CD56bright natural killer cells (p <0.01), a known hallmark also associated with operationally tolerant pLT patients, was detected. The concordance of the model for prediction of rejection based on identified SIM signatures was 0.715, and 0.795, in combination with living-related transplantation as a covariate, respectively. CONCLUSIONS: SIM blood signatures may enable the non-invasive and early assessment of rejection risks in the first year after pLT, paving the way for improved clinical management. IMPACT AND IMPLICATIONS: ChilSFree represents the largest pediatric liver transplant (pLT) cohort with paired longitudinal data on soluble immune mediators (SIMs) and immune phenotyping in the first year after pLT. SIM signatures allow for the selection of rejection-free patients 2 weeks after pLT independently of patient diagnosis, sex, or age. The SIM signatures may enable the non-invasive and early assessment of rejection risks, paving the way for minimization or withdrawal of immunosuppression after pLT.
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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. The child successfully underwent sequential liver transplantation and hematopoietic stem cell transplantation in the first 2 years of life. Nineteen months after hematopoietic stem cell transplantation and 30 months after liver transplantation, the patient is clinically well with normal hematopoietic function and excellent liver function. CONCLUSION: This is the first FA patient who successfully received sequential LT and HSCT highlighting that successful sequential transplantation is feasible in Fanconi anemia patients.
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Anemia de Fanconi , Trasplante de Células Madre Hematopoyéticas , Trasplante de Hígado , Pancitopenia , Niño , Recién Nacido , Humanos , Anemia de Fanconi/complicaciones , Anemia de Fanconi/terapia , Trastornos de Fallo de la Médula Ósea , HígadoRESUMEN
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. RESULTS: Twenty seven patients (male/female 5/22), median age 13 days (1-1530) presented with hepatomegaly (24/27), cardiac failure (10/27), cutaneous hemangiomas (8/27), fever and anemia (6/27 each), vomiting (5/27), splenomegaly (4/27). The lesion was focal, multifocal, or diffuse in 9 patients of each group. The management included medical treatment (8/27), embolization (8/27), resection (3/27), observation (6/27), transplantation (2/27). After 16 months' follow-up (30 days-11 years), 23/27 (85%) were alive. Diffuse lesions (4/4), cardiac failure (4/4), type II histology (4/4), age older than 6 months at diagnosis (3/4) predicted mortality (all p < 0.01). Histology showed type 1 lesion in 3/8, type 2 in 3/8, and type 3 in 2/8 with foci of angiosarcoma. CONCLUSION: Most patients with symptomatic HHE can be managed successfully with a combination of medical, radiological and surgical treatments. Patients with diffuse lesions, late presentation, cardiac failure and type II histology have a poor outcome. LEVEL OF EVIDENCE: Diagnostic level IV. Therapeutic level IV.
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Embolización Terapéutica/métodos , Hemangioendotelioma/diagnóstico , Neoplasias Cutáneas/diagnóstico , Femenino , Estudios de Seguimiento , Hemangioendotelioma/terapia , Humanos , Lactante , Masculino , Neoplasias Cutáneas/terapia , Factores de TiempoAsunto(s)
Betacoronavirus , Infecciones por Coronavirus/epidemiología , Hepatopatías/cirugía , Trasplante de Hígado , Neumonía Viral/epidemiología , Receptores de Trasplantes , Adolescente , Adulto , COVID-19 , Niño , Preescolar , Comorbilidad , Femenino , Humanos , Lactante , Recién Nacido , Italia/epidemiología , Hepatopatías/epidemiología , Masculino , Pandemias , Pronóstico , SARS-CoV-2 , Adulto JovenRESUMEN
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. Eighteen months after Teduglutide start the young boy gained 10 kg in weight and 13 cm in height with a significant reduction in bowel distension. No adverse events were reported during the treatment. Pubertal spurt might be impaired in children with SBS on full oral feeding if the caloric need is not met by the residual intestinal absorption rate. GLP-2 analog might represent an option to sustain pubertal spurt in SBS children on full oral feeding with hyperphagia.
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INTRODUCTION: Hepatic artery complications (HACs), such as a thrombosis or stenosis, are serious causes of morbidity and mortality after paediatric liver transplantation (LT). This study will investigate the incidence, current management practices and outcomes in paediatric patients with HAC after LT, including early and late complications. METHODS AND ANALYSIS: The HEPatic Artery stenosis and Thrombosis after liver transplantation In Children (HEPATIC) Registry is an international, retrospective, multicentre, observational study. Any paediatric patient diagnosed with HAC and treated for HAC (at age <18 years) after paediatric LT within a 20-year time period will be included. The primary outcomes are graft and patient survivals. The secondary outcomes are technical success of the intervention, primary and secondary patency after HAC intervention, intraprocedural and postprocedural complications, description of current management practices, and incidence of HAC. ETHICS AND DISSEMINATION: All participating sites will obtain local ethical approval and (waiver of) informed consent following the regulations on the conduct of observational clinical studies. The results will be disseminated through scientific presentations at conferences and through publication in peer-reviewed journals. TRIAL REGISTRATION NUMBER: The HEPATIC registry is registered at the ClinicalTrials.gov website; Registry Identifier: NCT05818644.
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Arteria Hepática , Trasplante de Hígado , Complicaciones Posoperatorias , Sistema de Registros , Trombosis , Humanos , Trasplante de Hígado/efectos adversos , Estudios Retrospectivos , Niño , Incidencia , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Trombosis/etiología , Trombosis/epidemiología , Adolescente , Preescolar , Femenino , Masculino , Constricción Patológica/etiología , Lactante , Estudios Multicéntricos como AsuntoRESUMEN
INTRODUCTION: Portal vein obstruction (PVO) consists of anastomotic stenosis and thrombosis, which occurs due to a progression of the former. The aim of this large-scale international study is to assess the prevalence, current management practices and efficacy of treatment in patients with PVO. METHODS AND ANALYSIS: The Portal vein Obstruction Revascularisation Therapy After Liver transplantation registry will facilitate an international, retrospective, multicentre, observational study, with 25 centres around the world already actively involved. Paediatric patients (aged <18 years) with a diagnosed PVO between 1 January 2001 and 1 January 2021 after liver transplantation will be eligible for inclusion. The primary endpoints are the prevalence of PVO, primary and secondary patency after PVO intervention and current management practices. Secondary endpoints are patient and graft survival, severe complications of PVO and technical success of revascularisation techniques. ETHICS AND DISSEMINATION: Medical Ethics Review Board of the University Medical Center Groningen has approved the study (METc 2021/072). The results of this study will be disseminated via peer-reviewed publications and scientific presentations at national and international conferences. TRIAL REGISTRATION NUMBER: Netherlands Trial Register (NL9261).
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Hepatopatías , Trasplante de Hígado , Enfermedades Vasculares , Humanos , Niño , Trasplante de Hígado/efectos adversos , Vena Porta , Estudios Retrospectivos , Prevalencia , Enfermedades Vasculares/epidemiología , Enfermedades Vasculares/etiología , Enfermedades Vasculares/cirugía , Sistema de Registros , Estudios Observacionales como Asunto , Estudios Multicéntricos como AsuntoRESUMEN
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. We considered children with cirrhosis and HCC who had a primary OLT. We retrospectively recorded demographic, medical and surgical features, and MC as predictors of outcome. Among 456 children transplanted in the last 15 yr, 10 (2%), median age at diagnosis 1.8 yr (range 0.5-7.2), had HCC in biliary atresia (3), BSEP deficiency (3), tyrosinemia type 1 (2), complications of choledocal cyst and glycogen storage disease type IV (1 each). At HCC discovery, median AFP was 2322 ng/mL (3-35,000), high or rising in 9/10 patients. Six patients were outside the MC. Median time on the waiting list was 38 days (1-152). Two patients died from early complications of OLT. In the other eight patients, there was no tumor recurrence after a median follow-up of four yr. Children with cirrhosis may develop HCC at a very young age. The outcome appears excellent even outside MC. Primary liver transplantation is advisable for children with cirrhosis, HCC, and no extrahepatic disease.
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Carcinoma Hepatocelular/terapia , Cirrosis Hepática/terapia , Neoplasias Hepáticas/terapia , Trasplante de Hígado/métodos , Niño , Preescolar , Estudios de Cohortes , Femenino , Humanos , Inmunosupresores/uso terapéutico , Lactante , Trasplante de Hígado/efectos adversos , Masculino , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
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. Portal/periportal inflammatory infiltrate with interface/lobular hepatitis was suggestive for DNAH. Pericentral hepatocytes confluent dropout with a variable degree of central vein endothelitis, but not with ductopenia (loss of >50% of interlobular bile ducts), was diagnosed as ECR. Nine patients had DNAH and 13 ECR. Five out of 9 in the DNAH group were on cyclosporin (CsA) and 4/9 were on tacrolimus (Tac). In the ECR group, 11 children were treated with CsA and 2 with Tac. All DNAH patients had normal liver function tests on steroids and azathioprine (AZA). Five patients with ECR recovered by increasing calcineurin inhibitors (CNIs) dosage, but in 8/13, including 7 switched from CsA to Tac, AZA and steroids were added to obtain remission of disease. Two patients developed late chronic rejection. DNAH and ECR associated with autoantibodies are forms of late GD after OLTx. DNAH improves after standard treatment of autoimmune hepatitis. ECR has a good response to increased doses of CNIs, although ductopenic chronic rejection may occur. In conclusion, the early differential diagnosis of these conditions and an appropriate treatment seem to allow good overall results reflected by a graft survival of more than 90%.