Active clinical trials for "Liver Diseases"

This study evaluates the current situation and follow-up of chronic hepatitis C virus (HCV) infection in patients co-infected with human immunodeficiency virus (HIV) in Andalusia.

Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the world. NAFLD is associated with a lot of comorbidity, such as diabetes, metabolic syndrome, coronary heart disease and chronic kidney diseases. However, the correlation between the NAFLD and cardiovascular disease (CVD) events remains controversial. This study is an observational study based on a big retrospective cohort in china to explore the prevalence of NAFLD in China, the risk factors associated with NAFLD, as well as whether patients with NAFLD are more prone to experience CVDs and CVD events.

Nowadays, the morbidity of Nonalcoholic fatty liver disease (NAFLD) show ascending trend year by year, which has become an important public health problem in China. As NAFLD can progress to Non-alcoholic steatohepatitis (NASH), cirrhosis and Hepatocarcinoma, the identification and quantitative evaluation of liver steatosis and its dynamic changes are crucial. While liver biopsy is still the gold standard in the diagnosis of NAFLD, its application is limited because of the invasive procedure.The Transient Elastography(TE) combined with the Controlled Attenuation Parameter(CAP) is a new non-invasive diagnostic method for fatty liver and liver fibrosis. In order to evaluate the diagnostic value of non-invasive assessment for the degree of liver steatosis and staging liver fibrosis, this non-invasive method will be assessed by the golden standard of liver biopsy among 400 NAFLD patients.The treatment protocols will be decided by doctor and patient both (treatment protocols and medicine are not required). Blood routine, blood biochemistry, abdominal ultrasound and Transient Elastography(TE) combined with the Controlled Attenuation Parameter(CAP) are detected during the follow-up.

Non-alcoholic fatty liver disease is the most common cause of chronic liver disease worldwide. It is defined as the accumulation of fat (>5%) in the liver cells in the absence of excessive alcohol intake or other causes of liver disease including viral, drug-induced, or autoimmune. Non-alcoholic fatty liver disease is a hepatic manifestation of metabolic syndrome.

The aim of this study is to validate and develop a new diagnostic and prognostic approach for assessment of liver function in children and adolescents with acute liver failure and chronic liver insufficiency. A carefully selected panel of functional and genomic tests along with diagnostic imaging and analysis of the microbiota will be performed in children and adolescents with acute liver failure and chronic liver insufficiency at Rigshospitalet. The tests will be performed in a serial manner in order to detect changes in outcomes. The study is an unblinded descriptive study, and approximately 20 patients with acute liver failure and 100 patients with chronic liver disease will be included in the project. This study will be the first of it's kind worldwide. The investigators expect the study to improve future diagnostic and prognostic accuracy and help the clinicians in identifying those patients in which the liver will regenerate itself, from those patients in which a liver transplantation will be lifesaving. Furthermore this study aims to help the clinicians in defining the optimal time for pediatric liver transplant in a narrow window of opportunity.

The aim of this study is to test a non-invasive imaging technique to reliably diagnose NAFLD in children and adolescents with obesity and assess the degree of fibrosis.

This is a prospective observational study of 100 patients undergoing liver transplantation at a single centre. Thrombin generation and kinetics will be assessed using a novel point-of-care device, and compared to conventional measures of hemostasis as well as viscoelastic tests to pinpoint specific coagulation deficits and identify potential therapeutic targets. The clinical course of patients will be followed for major bleeding and transfusion outcomes.

HITACH developed a new combi-elastography imaging technology combines shear wave imaging and strain imaging technology. In the study, not only the F index which is related to the stage of liver fibrosis can be obtained, but also the A index which is related to the stage of hepatitis can be obtained, which can not be obtained by other ultrasound devices.

To assess the prevalance of non_alcoholic fatty liver diseases in inflammatory bowel disease patients and its relation to type of treatment given and disease severity

Portal hypertension (PH) results from the increase of portal flow resistance in fibrotic tissue of the liver in patients with chronic liver diseases, leading to complications such as varices formation and variceal bleeding, ascites formation, spleenomegaly and hypersplenismus, systemic haemodynamic disorders and porto-systemic shunts formation. Early detection of PH in patients with chronic liver diseases is clinically important as it should change patient management in order to prevent the formation/onset or recurrence of PH complications. Hepatic venous pressure gradient (HVPG) measurement is the gold standard for the assessment of the severity of PH. However, it is an invasive method with its risks, and relatively costly. On the other hand transient elastography (TE) emerged as a non-invasive, easy, safe and low cost method with the potential to assess the severity of PH, as liver stiffness (LS) and spleen stiffens (SS) measured by TE showed very good correlation with HVPG. Real-time 2D shear wave elastography (RT-2D-SWE) is an ultrasound elastography method reliable for non-invasive assessment of fibrosis stage especially in chronic viral hepatitis, but only preliminary data exist on the correlation of RT-2D-SWE measured LS/SS with and HVPG. In this study we hypothesized that LS and SS measured by RT-2D-SWE correlate with HVPG enabling RT-2D-SWE to be used for the assessment of severity of PH. The primary aim of this study is to analyse correlation between LS and SS as assessed by RT-2D-SWE and TE with the grade of portal hypertension as assessed by HVPG. The secondary aims are: 1) to analyse clinical outcomes of these patients in order to determine if LS and/or SS as assessed by RT-2D-SWE might predict adverse outcomes (liver decompensation, death or HCC development), and 2) to compare clinical performance (AUC) of RT-2D-SWE and TE for the assessment of the PH severity as well as for predicting clinical outcomes. Patients with suspicion of having compensated advanced chronic liver disease (cACLD) as assesed by non-invasive methods (transabdominal ultrasound, laboratory findings, FIB-4 and APRI score, and LS measurements by TE), will be included. Since positive predictive value of non-invasive methods for cirrhosis is generally not very reliable, these patients will be offered transjugular liver biopsy and HVPG measurements as gold-standard methods to define the stage of liver disease and severity of PH. These patients will undergo LS and SS measurements by RT-2D-SWE on Aixplorer SuperSonic Imagine ultrasound system and HVPG measurements as well, with transjugular liver biopsy performed during the same session. After SWE™ and HVPG measurement, 5-year follow-up is planned, including standard surveillance: laboratory findings, transabdominal US every six months and upper-GI endoscopy according to relevant guidelines, as well as treatment according to relevant guidelines as indicated: beta blockers, endoscopic variceal ligation, etiologic treatment and dietary measures. Appropriate statistical analysis will be undertaken after the enrollment period, as well as after follow-up period.