Active clinical trials for "Hypertension, Portal"

This study is a prospective, non-controlled, multicentre trial in patients with cirrhosis or portal hypertension. In this study, the investigators aim to establish the HVPG using biofluid mechanics (HVPGBFM) model using biofluid mechanics methods and validate the HVPGBFM model. A total of 200 patients will be recruited in this study and each patient will undergo computed tomography, blood tests, Doppler ultrasound and HVPG measurement. The study consists of two independent and consecutive cohorts: original cohort (100 patients) and validation cohort (100 patients). The researchers will establish and improve the HVPGBFM model in the original cohort and assess the model in the validation cohort.

Cirrhotic patients with AVB across 34 university medical centers in 30 cities in China from February 2013 to May 2020 who underwent endoscopy within 24 hours were included in this study. Patients were divided into an urgent endoscopy group (endoscopy <6h after admission) and an early endoscopy group (endoscopy 6-24h after admission). Outcomes included the incidence of 5-day rebleeding, in-hospital mortality, need for intensive care unit (ICU) and the length of hospital stay after the endoscopy management. Multivariable analysis was performed to identify risk factors for rebleeding. A propensity score matching (PSM) analysis was performed to achieve a balance at baseline between the urgent and early groups.

The objective of this study is to evaluate the pre-operative symptoms and medical history of patients with portal hypertension who have undergone placement of H-graft portacaval shunts and correlate this with patient outcomes.

Portal hypertension is a common complication of chronic liver diseases and is responsible for most clinical consequences of cirrhosis. measurement of the hepatic venous pressure gradient(HVPG) is the gold standard for evaluating the presence and severity of portal hypertension, this technique is considered invasive and is not routinely performed in all centers. Wisteria floribunda agglutinin-positive human Mac-2 binding protein (WFA+-M2BP) is a secreted N-glycoprotein, which has been reported as a novel marker in assessing liver fibrosis.However, the correlation of WFA+-M2BP with HVPG is unclear.The aim of this study was to explore the relationship between WFA+-M2BP and HVPG.

In patients with liver cirrhosis elevated levels of von Willebrand factor antigen (vWF-Ag) are found frequently but the clinical significance is unclear. vWF-Ag plays an important role in primary haemostasis and development of thrombotic vascular obliteration is discussed as a possible mechanism leading to portal hypertension. Invasive measurement of hepatic venous pressure gradient (HVPG) is the current gold standard for the diagnosis of portal hypertension. The investigators hypothesize that vWF-Ag levels in plasma may correlate with portal pressure and predict clinically significant portal hypertension (CSPH, HVPG >=10mmHg) and its complications.

To observe the etiology, diagnosis, management and prognosis of cavernous transformation of portal vein.

This is a follow-up study focusing on long-term complications of acute pancreatitis. The primary purposes include: 1. To assess the incidence of type 2 diabetes mellitus（2-DM）,impaired glucose tolerance, metabolic abnormalities of blood lipids after acute pancreatitis. 2. To observe the possible long-term clinical outcomes after acute pancreatitis attack, which may include: chronic pancreatitis, pancreatic cancer, pancreatogenic portal hypertension, autoimmune pancreatitis et al. 3. To evaluate the long-term influence of acute lung injury(PaO2/FiO2<200,FiO2 means fraction of inspiration O2) in AP patients during ICU stay on life qualities of the patients; 4. To observe the prognosis of the local complications of acute pancreatitis(AP) patients; it might be helpful to find the most effective and targeted interventions aiming at different phases after AP attack.

The spleen could be considered a neglected organ. To date, it has been deemed an ancillary organ in portal hypertension or an organ localization in lymphoproliferative diseases. Hypersplenism is a common disorder characterized by an enlarged spleen which causes rapid and premature destruction of blood cells. It can result from any splenomegaly. It is most common with splenomegaly secondary to portal hypertension and hematological disorders. Portal Hypertension is an important cause of splenomegaly in most tropical countries This work will involve a series of studies aiming to: Assess the prevalence and pattern of hypersplenism, and grade the severity of cytopenias in patients with cirrhosis and portal hypertension. Elucidate the relationship between hypersplenism, in these patients, and: The severity of liver cirrhosis as assessed by Child's and the Model of End-stage Liver Disease (MELD) scores. The presence and grade of gastroesophageal varices as assessed by upper endoscopy. The presence of hepatocellular carcinoma Portal hemodynamics and portal vein thrombosis as assessed by Doppler Ultrasound. Test the hypothesis that leucopenia in cirrhotic patients may be caused, at least in part, by apoptosis of polymorphnuclear leucocytes.

The study aims to evaluate the feasibility of transnasal endoscopy in patients with portal hypertension, cirrhotic and non-cirrhotic. The incidence of the procedure's adverse effects, the patient's tolerance and his/her opinion about the exam are analyzed. In addition, the interobserver matched for the discoveries found in the study is carried out.

Oxaliplatin has been used as the first choice for the adjuvant chemotherapy of colorectal cancer and it has significantly improved the outcomes in patients with colorectal cancer. However, hepatotoxicity is the potentially problematic adverse effect of oxaliplatin. The pathological evaluation of non-tumoral liver from patients with advanced colorectal cancer undergoing neoadjuvant oxaliplatin-based treatment has provided histological evidence of hepatic sinusoidal injury. Oxaliplatin-induced sinusoidal injury can persist for more than 1 year after the completion of chemotherapy, and the increase in splenic volume may be a predictor of irreversible sinusoidal damage. In this current study, the investigators aim to evaluate the values of potential biomarkers in diagnosing patients with oxaliplatin-induced gastroesophageal varices after colorectal cancer surgery.