Liver Transplantation (LT)

This study aims to evaluate whether intraoperative glycemic variability (GV) is independently associated with the risk of infectious complications within 30 days after elective liver transplantation. This is an observational study with no intervention beyond standard perioperative care. Glycemic and clinical outcome data will be obtained from routinely collected medical records of patients undergoing liver transplantation at the 2nd Department of Anesthesiology and Intensive Care, Medical University of Warsaw.

Receiving a liver transplant is a major life event that can be physically and emotionally challenging. During the first five years after transplantation, more than one in two liver transplant recipients experience a mental health disorder. These disorders may reduce adherence to treatment, increase the risk of graft rejection, impair quality of life, and, in some cases, increase the risk of death. Depression is the most common mental health disorder, affecting approximately one in four liver transplant recipients. Survival after liver transplantation has improved considerably over recent decades. However, little is known about the long-term mental health of liver transplant recipients. Routine follow-up visits after transplantation play an important role by strengthening the relationship between patients and the healthcare team and by providing regular opportunities to assess mental well-being in addition to standard transplant follow-up, such as monitoring liver health, screening for cancer and cardiovascular disease, and managing treatment-related complications. These visits also help identify the need for additional support, such as addiction specialists, dietitians, or other healthcare professionals, and provide an opportunity to detect symptoms of depression, particularly in patients experiencing personal or family difficulties. Beyond routine medical follow-up, there is a growing need to better understand mental health many years after liver transplantation. Learning from patients' experiences may help improve the early detection, prevention, and management of depression and other mental health disorders. The primary objective of this study is to determine the prevalence of moderate-to-severe depressive symptoms among adult liver transplant recipients who underwent transplantation more than five years ago.

The ARANMP-LT study is a multicenter, open-label, randomized, parallel-group, non-inferiority clinical trial designed to evaluate whether avoiding graft recooling after normothermic machine perfusion (NMP) improves early outcomes following liver transplantation. Although graft recooling before implantation is common practice, experimental and preliminary clinical evidence suggests that abrupt temperature changes may contribute to ischemia-reperfusion injury. Adult recipients of deceased-donor liver grafts preserved with NMP or sequential hypothermic-normothermic machine perfusion (SHNMP) will be randomized in a 1:1 ratio to either standard graft implantation with recooling using cold preservation solution (control group) or implantation without recooling using a room-temperature 5% albumin flush immediately before reperfusion (intervention group). The primary objective is to compare the incidence of Early Allograft Dysfunction (EAD), defined according to the Olthoff criteria, between the two treatment groups. Secondary objectives include evaluation of histopathological ischemia-reperfusion injury using the Suzuki score, vascular and biliary complications, primary non-function, post-reperfusion syndrome, patient and graft survival, length of intensive care unit and hospital stay, perioperative transfusion requirements, and safety outcomes. A total of 170 participants will be enrolled across multiple Italian liver transplant centers and followed for 90 days after transplantation.

The goal of the REFIL-2 study is to evaluate the effectiveness of a low splanchnic blood volume restrictive fluid management strategy (a strategy that involves limiting fluid administration and prioritizing the use of medications that raise blood pressure during surgery, combined with phlebotomy) in improving patients' recovery after surgery. The study compares the low splanchnic blood volume restrictive fluid management strategy to an optimized cardiac-output liberal fluid management strategy (which involves administering more fluids to raise blood pressure with less reliance on medications). Outcomes important to patients will be measured. This study (REFIL-2) had a vanguard phase (internal pilot) that included 138 patients (NCT05647733). The patients included in the vanguard pilot phase were not compared between groups but only analyzed descriptively using aggregated data. Only feasibility metrics were compared (see NCT05647733). These 138 patients were thus rolled into the REFIL-2 trial and included in the final sample size reported herein.

Liver transplantation is a life-saving treatment for patients with severe liver disease. Because of the shortage of donor organs, transplant centers increasingly use donor livers that may be more vulnerable to injury and dysfunction. To improve the quality of these organs before transplantation, many centers use hypothermic oxygenated machine perfusion (HOPE or D-HOPE), a technique that preserves the liver under cold, oxygenated conditions. However, there are currently no widely accepted methods to determine whether a liver is functioning well enough during this preservation process. The purpose of this study is to investigate whether changes observed in liver tissue during hypothermic machine perfusion can help predict how well the transplanted liver will function after surgery. The study will compare liver biopsy samples collected before and after one hour of perfusion and will analyze biological markers released into the perfusion fluid, including markers of mitochondrial injury and inflammation. The main question this study aims to answer is whether histological changes occurring during hypothermic perfusion, alone or in combination with biochemical biomarkers, can accurately predict liver graft viability and post-transplant outcomes. Researchers will also evaluate whether these data can be used to develop an artificial intelligence-based model to support clinical decision-making during organ preservation. A total of 150 adult liver transplant recipients receiving donor livers treated with HOPE or D-HOPE will be enrolled at three Italian liver transplant centers. Participants will be followed for 90 days after transplantation to assess liver graft function, graft survival, patient survival, and post-transplant complications. The results of this study may improve the assessment of donor liver quality before transplantation and help clinicians make more informed decisions about organ use, ultimately increasing the safety and effectiveness of liver transplantation.

This research focuses on analysing data collected as part of your usual care. Currently, the eligibility of patients with hepatocellular carcinoma for liver transplantation is based on the calculation of scores. These scores mainly take into account the volume of the tumour measured by imaging, one or more blood markers and the patient's general condition. However, these scores do not take into account: * the concept of downstaging (i.e. the prior reduction of tumour volume through locoregional or systemic treatments, which subsequently allows access to LT), which is becoming increasingly widespread * the dynamics of hepatocellular carcinoma (tumour recurrence while waiting on the transplant list, administration of wait-and-see treatments) * certain anatomopathological parameters (such as the macro-trabecular subtype of HCC). The aim of our study is to develop a new score incorporating these factors in order to identify patients with hepatocellular carcinoma who could truly benefit from a liver transplant. To answer the question posed in the research, data will be collected from 402 people who received a liver transplant for hepatocellular carcinoma at three hospitals in the Paris region between 1 January 2018 and 31 December 2023, and from 160 people at two international hospitals in Canada and Belgium.