View clinical trials related to Portal Hypertension.
Filter by:This is a randomized single-blind feasibility trial to test the utilization of home blood pressure devices to improve the clinical management of decompensated cirrhosis patients.
Research has proven that large varices can be treated with beta-blockers (a type of anti-hypertensive medication) to reduce the pressure in the veins. The management of small varices is still uncertain. This study aims to discover if beta blockers can be used in this setting. We hypothesize that beta blockers will reduce the risk of bleeding from small varices from 20% to 10% over a period of 3 years, resulting in significant cost savings to the NHS from better patient outcomes.
This multicenter trial is being conducted to determine if sequential lactulose and Tele (virtual) Tai-Chi reduces the rate of injurious fall, non-injurious falls, incident overt Hepatic Encephalopathy (HE), and death or liver transplant over 24 weeks. Participants that are enrolled will be randomized to stage one of this project for approximately 12 weeks. After completing stage one, participants will be re-randomized to stage 2 of the project that will last approximately 12 more weeks. The study hypothesizes that sequential lactulose/TeleTai-Chi will reduce falls, incident overt HE, death and physical frailty and will improve cognitive function, and Health Related Quality of Life (HRQOL) over 24 weeks compared to other treatment combinations.
According to international guidelines, Hepatic Venous Pressure Gradient is the gold standard technique for portal hypertension measurement, but it is invasive and poorly available. Currently, surveillance of oesophageal/gastric varices is performed by upper gastrointestinal endoscopy. More recently, non-invasive tools to estimate portal hypertension have been developed and, among them, ultrasound elastography has been proposed as a technique to stratify patient risk to have portal hypertension. Aim of this study is to evaluate the relationship between ultrasound evaluation (D-CEUS + elastography) and endoscopic parameters predictive of clinically significant portal hypertension in patients with liver cirrhosis.
Patients with clinically significant portal hypertension allocated to implantation of a transjugular intrahepatic portosystemic shunt (TIPS) at the Department of Medicine II of the University Medical Center Freiburg, Germany will be offered to participate in this prospective observational trial. Clinical and laboratory as well as outcome parameters will be assessed before and within the first 12 months after TIPS implantation following a regular follow-up schedule with clinical visits at the University Medical Center Freiburg. During follow-up visits, serum/plasma samples and peripheral blood mononuclear cells (PBMC) are collected and stored in a associated biobank.
Clinically significant portal hypertension (CSPH) is defined as Hepatic Venous Pressure gradient (HVPG) >10 mmHg. Patients with CSPH are at risk of developing esophageal varices and clinical decompensation (variceal bleeding, ascites, jaundice, encephalopathy), which mark the transition from compensated stage to a stage of the disease (decompensated) associated with higher mortality. HVPG is calculated by subtracting the free hepatic venous pressure (FHVP), a measure of systemic pressure, from the wedged hepatic venous pressure (WHVP), a measure of hepatic sinusoidal pressure. HVPG is surrogate marker in many clinical applications such as gold standard test to evaluate presence and severity of portal hypertension (PHT) diagnosis, risk stratification, monitoring of the patients on beta blockers. Non-selective beta-blockers like propranolol and carvedilol are indicated in adults for primary and secondary prophylaxis of variceal hemorrhage. Acute hemodynamic response to intravenous propranolol with HVPG values coming down to < 12 mm Hg or reduction to >20% from baseline have been shown to be associated with reduced long-term risk of variceal bleed. Portal Hypertension in biliary atresia (BA) occurs early and is due to recurrent cholangitis and portal sclerosis. HVPG in children is feasible and safe in children according to previous studies, however, there are no recommendations to suggest beta-blockers based on HVPG reduction in children. Hence, we are planning the current work to study the acute hemodynamic response to carvedilol in children with CSPH, and to compare the HVPG values in children with chronic liver disease.
Creation of the parenchymal tract between the portal vein and the hepatic vein is the most difficult and time consuming step in a TIPS procedure. The purpose of this study is to evaluate portal vein access sets during the TIPS procedure.
This prospective study was conducted in a tertiary university hospital. The investigators researched the correlation between MRE-assessed stiffness of the liver and spleen and the Hepatic venous pressure gradient (HVPG) values. Furthermore, the investigator evaluated whether MRE-assessed stiffness reflected changes in portal hypertension (PH) after administering non-selective beta-blockers (NSBBs).
Porto-sinusoidal vascular disorder (PSVD) is considered a rare cause of portal hypertension (PH), resulting from specific histological alterations that essentially affect the small portal branches and sinusoids, in the absence of cirrhosis. In recent years, the recognition and importance of PSVD has increased, notably due to the widespread use of transient elastography (TE). However, the definitive diagnosis of PSVD can only be established through liver biopsy. Recent data show that PSVD should be suspected in patients with PH and TE ≤ 20 kPa and liver biopsy should be considered in this context. The investigators hypothesize that hepatic venous pressure gradient (HVPG) and magnetic resonance liver elastography (MRE) may help in the selection of liver biopsy candidates for the diagnosis of PSVD. The primary objective of the study is to describe HVPG and MRE values and liver biopsy findings in patients with PH and TE ≤ 20 kPa. The search for serum markers that can distinguish these patients from those with cirrhotic portal hypertension without the need for liver biopsy will also be the object of this study. 50 patients will be included, prospectively and retrospectively, in a comparative study between diagnostic methods, with a cross-sectional design.
This study aims to evaluate the impact of non-invasive CT-based Hepatic Venous Pressure Gradient (HVPG) assessment on prognosis of hepatocellular carcinoma (HCC) patients treated with transarterial chemoembolization (TACE).