Publications by authors named "Houssel-Debry P"

Background: Transarterial chemoembolization (TACE) is widely used for hepatocellular carcinoma treatment but side effects hamper tolerance. Dexamethasone reduces TACE side effects in patients with viral hepatitis, but data regarding alcohol and metabolic liver diseases are lacking. We aimed to evaluate the efficacy of dexamethasone in preventing TACE-associated adverse events in European populations with predominantly alcoholic and metabolic cirrhosis.

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  • Acute liver failure (ALF) often requires ICU care and may need emergency liver transplants, and high-volume plasma exchange (HVPE) could help improve survival rates without a transplant.
  • A study analyzed 120 HVPE sessions in 50 ALF patients, noting that paracetamol was the leading cause of ALF, and various blood parameters were affected during the procedures.
  • Results showed that severe adverse effects, particularly severe alkalosis, hypotension, and hypocalcemia, were common, with specific blood pH levels and paracetamol as significant predictors for survival after 21 days.
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Background And Aims: Baveno VII consensus suggests that screening endoscopy can be spared in patients with compensated cirrhosis when spleen stiffness measurement (SSM) by vibration-controlled transient elastography (VCTE) is ≤40 kPa as they have a low probability of high-risk varices (HRV). Conversely, screening endoscopy is required in all patients with porto-sinusoidal vascular disorder (PSVD). This study aimed to evaluate the performance of SSM-VCTE to rule out HRV in patients with PSVD and signs of portal hypertension.

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Background: In recent years, age at liver transplantation (LT) has markedly increased. In the context of organ shortage, we investigated the impact of recipient age on post-transplantation mortality.

Methods: All adult patients who received a first LT between 2007 and 2017 were included in this cross-sectional study.

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Background: Liver transplant recipients are at risk of tuberculosis, which is particularly difficult-to diagnose and to treat in this population.

Methods: Retrospective study of all cases of tuberculosis diagnosed from 2007 to 2022 in the French network of liver transplant sites.

Results: Twenty-three liver transplant recipients were diagnosed with tuberculosis (six females, median age 59 years [interquartile range, 54-62]), with a median time lapse of 10 months [5-40.

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Langerhans cell histiocytosis (LCH) is a disease whose physiopathology remains unclear, involving both inflammatory processes and clonal proliferation. It is observable at any given age, although about ten times more frequent in children than adults. Hepatic involvement is not rare, mostly part of a systemic disease, and linked to a poor prognosis.

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Autoimmune hepatitis (AIH) may recur after liver transplantation (LT). The aims of this study were to evaluate the incidence and risk factors for recurrent autoimmune hepatitis (rAIH). A multicenter retrospective French nationwide study, including all patients aged ≥16 transplanted for AIH, with at least 1 liver biopsy 1 year after LT, was conducted between 1985 and 2018.

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Purpose: Therapeutic drug monitoring of tacrolimus using trough concentration (C) is mandatory to ensure drug efficacy and safety in solid organ transplantation. However, C is just a proxy for the area under the curve of drug concentrations (AUC) which is the best pharmacokinetic parameter for exposure evaluation. Some studies suggest that patients may present discrepancies between these two parameters.

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The deleterious effect of donor-specific anti-HLA antibodies (DSA) after liver transplantation (LT) has been increasingly recognized during the past decade. Antibody-mediated rejection (AMR) represents a rare but severe complication in the presence of DSA. However, little is known concerning the treatment of AMR after LT.

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At the time of the growing obesity epidemic worldwide, liver transplantation (LT) and metabolic syndrome are closely linked: non-alcohol-related fatty liver disease (NAFLD) is one of the leading indications for liver transplantation, and metabolic syndrome can also appear after liver transplantation, in relation to immunosuppressive medications and weight gain, whatever was the initial liver disease leading to the indication of LT. Therefore, the role of bariatric surgery (BS) is important due to its longer-lasting effect and efficacy. We performed a retrospective review of all 50 adult French liver transplant recipients who had a history of bariatric surgery, including 37 procedures before transplantation, and 14 after.

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  • Graft rejection poses a significant challenge in solid-organ transplants, but understanding the low immunogenicity of liver allografts, particularly through the role of HLA-G, may enhance tolerogenic properties in other organs.
  • In a study of 118 liver transplant patients, researchers found that HLA-G plasma levels increased in the first three months post-transplant and were linked to lower rejection rates, especially when levels exceeded 50 ng/ml on day eight post-transplant.
  • There was a noted association between high HLA-G levels and lower levels of donor-specific anti-HLA antibodies, suggesting that enhancing HLA-G levels might offer new therapeutic avenues for reducing rejection in organ transplants.
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Background & Aims: Liver transplantation (LT) is the only available treatment for end-stage non-alcoholic fatty liver disease (NAFLD) (related decompensated cirrhosis and/or hepatocellular carcinoma). The aim of our study was to evaluate the risk of disease recurrence after LT and the factors influencing it.

Method: This retrospective multicenter study included adults transplanted for NAFLD cirrhosis between 2000 and 2019 in 20 participating French-speaking centers.

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Background & Aims: Autoimmune hepatitis (AIH) is a rare indication for liver transplantation (LT). The aims of this study were to evaluate long-term survival after LT for AIH and prognostic factors, especially the impact of recurrent AIH (rAIH).

Methods: A multicentre retrospective nationwide study including all patients aged ≥16 transplanted for AIH in France was conducted.

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Background: Direct-acting antiviral (DAA) agents for the treatment of hepatitis C virus (HCV) infection have been proven safe and effective in cirrhotic patients awaiting liver transplantation (LT). However, in the long term, data remain minimal regarding the clinical impact of viral eradication on patients listed for decompensated cirrhosis or hepatocellular carcinoma (HCC). We aimed to elucidate the clinical outcomes of patients regarding delisting and the evolution of HCC during the long-term follow-up.

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Background And Aims: Autoimmune hepatitis (AIH) is a rare indication (<5%) for liver transplantation (LT). The aim of this study was to describe the early outcome after LT for AIH.

Methods: A multicenter retrospective nationwide study including all patients aged ≥16 transplanted for AIH in France was conducted.

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BACKGROUND: In patients with noncirrhotic chronic portal vein thrombosis (PVT), the benefit of long-term anticoagulation is unknown. We assessed the effects of rivaroxaban on the risk of venous thromboembolism and portal hypertension-related bleeding in such patients. METHODS: In this multicenter, controlled trial, we randomly assigned patients with noncirrhotic chronic PVT without major risk factors for thrombosis to receive either rivaroxaban 15 mg/day or no anticoagulation.

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  • - The study investigates the need for therapeutic drug monitoring of tacrolimus (TAC) in organ transplant patients due to its narrow therapeutic index and variability in blood concentrations.
  • - The research focuses on the impact of genetic variants and the expression of four drug transporters on TAC concentrations, finding that some transporters correlate with TAC levels in liver and kidney transplant recipients.
  • - In vitro experiments confirmed TAC as a substrate of the drug transporter P-glycoprotein (P-gp), while results for other transporters were inconclusive, enhancing our understanding of TAC transport mechanisms in T lymphocytes.
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Introduction: Hepatitis C virus (HCV) may recur after liver transplantation (LT) in the severe form of fibrosing cholestatic hepatitis (FCH). The prognosis dramatically improved by the use of direct acting antivirals (DAAs). The aim of the present study was to describe the change in histological features of FCH after virological eradication.

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  • Liver transplantation is effective for patients with end-stage non-alcoholic liver disease (NAFLD), particularly those with decompensated cirrhosis or hepatocellular carcinoma, but long-term outcomes are not well-documented.
  • A study reviewed data from 361 patients who underwent liver transplants from 2000-2019, revealing a dramatic increase in procedures and providing insights into survival rates and causes of death.
  • Findings indicated a 5-year survival rate of 79.8%, with major mortality risks linked to recipient BMI, cardiovascular history, and combined ages of donor and recipient exceeding 135 years.
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Background: Selection of liver grafts suitable for transplantation (LT) mainly depends on a surgeon's subjective assessment. This study aimed to investigate the role of radiomic analysis of donor-liver CTs after brain death (DBD) to predict the occurrence of early posttransplant allograft dysfunction (EAD).

Methods: We retrospectively extracted and analyzed the left lobe radiomic features from CT scans of DBD livers in training and validation cohorts.

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The field of liver transplantation directly or indirectly embodies all liver diseases, in addition to specific ones related to organ rejection (cellular and humoral). The recommended non-invasive methods for determining the indication for liver transplantation are the Model for End-stage Liver Disease score, and the alpha-foetoprotein score in case of hepatocellular carcinoma. Radiological methods are the cornerstones for the diagnosis of vascular and biliary complications after liver transplantation.

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  • Portal vein thrombosis (PVT) is no longer a barrier to liver transplantation (LT), but the effectiveness of therapeutic anticoagulation (tAC) post-LT for preventing PVT recurrence remains unclear.
  • During a study of liver transplants from 2003 to 2018, data showed no significant difference in PVT recurrence between patients who received tAC and those who did not, although the tAC group experienced more bleeding events and longer hospital stays.
  • The findings suggest that tAC is not required for preventing grade I/II PVT recurrence and may actually lead to increased morbidity in post-LT patients.
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Background: Microsporidiosis has been largely reported in patients with acquired immunodeficiency syndrome, but emerged as a cause of persistent diarrhea in solid organ transplant patients.

Methods: Through the French Microsporidiosis Network and the Groupe français de recherche en greffe de foie, we collected all microsporidiosis cases identified in liver transplant patients between 1995 and 2020 in France.

Results: We identified 24 liver transplant recipients with microsporidiosis.

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Background: After liver transplantation (LT),de novo malignancies are one of the leading causes of late mortality. The aim of the present retrospective study was to identify the risk factors of de novo malignancies in a large cohort of LT recipients in France, using Fine and Gray competing risks regression analysis.

Methods: The study population consisted in 11004 adults transplanted between 2000 and 2013, who had no history of pre-transplant malignancy, except primary liver tumor.

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Background: Notwithstanding the ongoing coronavirus disease-2019 (Covid-19) pandemic, information on its clinical presentation and prognosis in organ transplant recipients remains limited. The aim of this registry-based observational study was to report the characteristics and clinical outcomes of liver transplant (LT) recipients included in the French nationwide Registry of Solid Organ Transplant Recipients with Covid-19.

Methods: COVID-19 was diagnosed in patients who had a positive PCR assay for SARS-CoV-2 or in presence of typical lung lesions on imaging or specific SARS-CoV-2 antibodies.

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