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Liver Transplantation clinical trials

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NCT ID: NCT04488094 Completed - Clinical trials for Liver Transplantation

Diagnostic Validity of [18F]FSPG PET for the Assessment of Acute Rejection After Heart or Liver Transplantation

Start date: November 18, 2020
Phase: Phase 2
Study type: Interventional

The a series of clinical studies of [18F]FSPG PET/CT showed that [18F]FSPG is safe and promising PET tracer for detecting inflammation with favorable biodistribution and pharmacokinetics in patients. By using [18F]FSPG, which targets system xCˉ, a key player in the active phase of inflammation, the goal of this phase 2 study is to evaluate diagnostic validity of [18F]FSPG PET/CT to detect allograft rejection after heart and liver allograft, where conventional imaging has limitations. Diagnostic efficacy of [18F]FSPG PET/CT will be determined in comparison with histologic evaluation of allograft biopsy. Other critical questions including whether quantitative measures of [18F]FSPG uptake is associated with the severity of rejection, inter-reader variability of [18F]FSPG PET/CT, and safety assessment will be also evaluated.

NCT ID: NCT04472312 Completed - Clinical trials for Liver Transplantation

Portal Pressure Effects of Phlebotomy Combined to Vasopressin Use in Cirrhotic Patients Undergoing Liver Transplantation

PORTAL
Start date: August 24, 2020
Phase:
Study type: Observational

Liver transplantation is the standard treatment for chronic advanced liver disease, whether or not associated with a primary liver tumor. The intraoperative bleeding and the need for blood transfusion, encountered in this major surgery are associated with increased morbidity and mortality. However, this hemorrhagic risk has been drastically reduced in the last 20 years and liver transplants without the use of blood products are now possible. Indeed, improvements in medical and surgical techniques associated with a better understanding of the pathophysiology of the cirrhotic patient have enabled this advance. One of the targeted therapeutic strategies is the control of portal hypertension. Several treatments have been sought, such as the use of splanchnic vasoconstrictors (such as vasopressin) and hypovolemic phlebotomy. These techniques reduce portal pressure and seem to reduce intraoperative bleeding with, even, a protective effect on kidney function. Their single-use or their combination is currently used in certain centers of expertise in liver transplantation. However, the hemodynamic effects of the combination of these 2 treatments on portal pressure has never been demonstrated. In this study, the effect of vasopressin, combined with a hypovolemic phlebotomy, on portal pressure in cirrhotic patients undergoing liver transplantation will be evaluated.

NCT ID: NCT04462874 Completed - Liver Diseases Clinical Trials

Mean Systemic Filling Pressure Trends in Liver Transplant Recipients

Start date: July 15, 2020
Phase:
Study type: Observational

Patients with end stage liver disease undergoing liver transplantation have varying degrees of intraoperative haemodynamic unstability during various phases of transplantation. It is difficult to determine the cause for hemodynamic instability in these patients and to predict the best treatments. Currently, cardiovascular resuscitation options are triggered by arterial pressure and cardiac output (CO) measures, focusing on the oxygen delivery side of the circulation. The primary determinants of cardiac output reside on the venous side. Veins are 30-50 times more compliant than arteries and contain approximately 75% of the total blood volume. Mean systemic filling pressure provides vital information on this venous side of the circulation. Mean systemic filling pressure , which is defined as the pressure equal to the pressure which would be measured if the heart should suddenly stop pumping and all (arterial and venous) the pressures in the entire circulatory system should be brought to equilibrium instantaneously, is a good, complete and reliable reflection of the total intravascular fluid compartment. We would study the Mean systemic filling pressure in liver transplant recipients and record hemodynamic, respiratory, cardiac and renal function prospectively. Follow up data for 7 days for respiratory, cardiac and renal complications will be collected, along with hospital stay, ICU stay and mortality. The association between Mean systemic filling pressure and these outcomes will be analyzed.

NCT ID: NCT04412161 Completed - Clinical trials for Hepatocellular Carcinoma

Liver Transplant for Larger Hepatocellular Carcinoma in Malatya: The Role of GGT and AFP

Start date: April 19, 2006
Phase:
Study type: Observational

Retrospective data on 50 prospectively-collected HCC patients with beyond-Milan criteria with >6cm tumors were analyzed. 5-year OS of 76.2% was found in patients with both AFP <200 ng/ml and GGT <104 IU/mL with tumors less than 10 cm diameter. Thus, GGT values add to AFP in patient prognosis.

NCT ID: NCT04376281 Completed - Clinical trials for Liver Transplantation

The Effect of Norepinephrine on Cardiac Output in Patients Undergoing Liver Transplant .

Start date: December 15, 2019
Phase: N/A
Study type: Interventional

Early administration of NE in liver transplant recipient might enhance cardiac output through an increase in cardiac preload .

NCT ID: NCT04361591 Completed - COVID19 Clinical Trials

COVID-19 in Liver Transplant Recipients

COVID19-SETH
Start date: March 1, 2020
Phase:
Study type: Observational [Patient Registry]

Prospective observational study aimed at analyzing the incidence, clinical characteristics and outcomes of COVID-19 in LT in Spain.

NCT ID: NCT04312958 Completed - Trauma Clinical Trials

Quantra QStat in Trauma and Liver Transplant

Start date: July 20, 2020
Phase:
Study type: Observational

This is a multi-center prospective, observational study of the Quantra System with the QStat Cartridge in trauma patients and patients undergoing liver transplant.

NCT ID: NCT04302246 Completed - Clinical trials for Liver Transplant; Complications

Immune Function Following Liver Transplantation

SEPTIFOIE
Start date: January 8, 2016
Phase:
Study type: Observational

Post-operative care following liver transplantation is characterized by a high incidence of infective and immunological complications. Restauration of liver function following liver transplantation is progressive and characterize a period of immuno-infective vulnerability. The purpose of this study is to characterize the early post-operative immune function in children after liver transplantation.

NCT ID: NCT04261816 Completed - Clinical trials for Liver Transplantation

Early Extubation and Postoperative Complications After Liver Transplantation

Start date: January 15, 2020
Phase:
Study type: Observational

This is a retrospective cohort study. Patients who underwent liver transplantation from January 1, 2016 to December 31, 2019 were admitted to the study and divided into two groups. Operating room extubation group: early extubation in the operating room immediately following liver transplantation. Intensive care unit (ICU) extubation group: delay extubation in the ICU following liver transplantation. The primary objectives were to compare the incidence of composite outcome between the two groups. secondary objectives were to compare outcomes such as length of stay, hospital length of stay, and total cost between the two groups.

NCT ID: NCT04219579 Completed - Clinical trials for Liver Transplant; Complications

Antithrombin III Concentrate After Liver Transplantation

Start date: January 3, 2020
Phase: N/A
Study type: Interventional

This study was designed to demonstrate more effective administration method of AT-III in immediate post-liver transplantation period.