View clinical trials related to Gastrointestinal Hemorrhage.
Filter by:The purpose of this study is to estimate the proportion of Ventricular Assist Device (VAD) patients with abnormal gastrointestinal bleeding as assessed by HemoQuant fecal occult blood test. Also, in patients with gastrointestinal bleeding present, to summarize the extent of gastrointestinal bleeding; to examine the behavior of HemoQuant fecal occult blood test over time by estimating the proportion of VAD patients with a positive test prior to implantation; at one week, one month, three months, six months and one year post implantation, and after explantation of the VAD and to evaluate whether presence of any abnormal fecal HemoQuant test is predictive of a future major bleeding event.
Peptic ulcer bleeding associated with ASA or NSAIDs is a major cause of hospitalization in Hong Kong. The investigators previously showed that ASA or NSAIDs accounted for about half of all cases of hospitalizations for peptic ulcer bleeding. Currently, ASA use has contributed to about one-third of the bleeding ulcers admitted to the investigators hospital that serves a local population of 1.5 million. In patients with acute coronary syndrome or acute ischemic stroke who develop ASA-induced bleeding peptic ulcers, whether ASA should be discontinued before ulcers have healed is a major dilemma. In another double-blind randomized trial, the investigators have shown that discontinuation of ASA after endoscopic treatment of bleeding ulcers was associated with a significantly increased in mortality within 8 weeks. In the absence of safer aspirins, co-therapy with a gastroprotective drug remains the dominant preventive strategy. Given the vast number of people taking ASA, however, it is only cost-effective to identify and treat those who are at high risk of ulcer bleeding and who have a strong indication for ASA use. Data from observational studies and randomized trials have consistently shown that PPIs are effective in reducing the risk of ulcer bleeding associated with ASA. Other potential preventive strategies include eradication of H. pylori infection, substitution of ASA for other non-aspirin anti-platelet drugs, and co-therapy with misoprostol or H2RAs.
Terlipressin is an effective and safe treatment for bleeding caused by rupture of oesophageal varices, which are life-threatening complications of liver cirrhosis. Oesophageal varices are abnormal dilatation of veins occurring in the lower oesophagus, which can develop in patients with cirrhosis. Bleeding caused by rupture of these varices is a life-threatening complication with mortality between 20-50%. Such bleeding can be treated with drug therapy and/or endoscopic; endoscopic therapy consists of a flexible tube equipped with a camera at the terminal end, allowing for visualizing and treating the oesophageal varices. In this study, investigators will evaluate the safety and efficacy of terlipressin - Glypressin 1 mg, powder and solvent for solution for injection. The non-interventional observational study "Follow-up of Glypressin (terlipressin) clinical efficacy in the treatment of bleeding oesophageal varices" aims to demonstrate that administration of Glypressin (terlipressin 1 mg) controls the bleeding in such patients.
The main aim of the study is to describes the outcomes of patients with Upper Gastrointestinal Bleed (UGIB) in a real-life setting. Additionally analyse assessed predictors of outcome, including the impact of hemostatic endoscopic and pharmacologic therapies.
The purpose of this study is to evaluate the efficacy of teprenone on chronic non-atrophic erosive gastritis and its therapeutic mechanism
The best preparation of small bowel is still unknown. The primary aim of this study is to evaluate the polyethylene glycol (PEG) impact of small bowel preparation for unexplained gastrointestinal bleeding exploration. Three different preparations are evaluated in this study.
Background: Efficacy of endoscopic variceal sclerotherapy in achieving initial control of acute variceal bleeding and five-day haemostasis has been shown to significantly improve when vasoactive drug is added. However, there is limited data whether addition of somatostatin, to endoscopic variceal ligation (EVL) improves the efficacy of EVL. Aim: To compare EVL plus somatostatin versus EVL plus placebo in control of acute variceal bleeding. Patients and methods: Consecutive cirrhotic patients with acute variceal bleeding from esophageal varices were enrolled in the trial. After emergency EVL, patients were randomized to receive either somatostatin (250 mcg/hr) or placebo infusion. Primary endpoint was treatment failure within 5 days. Treatment failure was defined as fresh hematemesis ≥2 hour after start of therapy or death.
The investigators are conducting a study to see if taking a bowel preparation before having a capsule endoscopy is more helpful than the standard preparation of not eating after 7 PM the night before a capsule endoscopy in making it easier to see the small bowel in order to find the source of gastrointestinal bleeding.
Patients who have experienced and survived non-ST segment elevation acute coronary syndromes are often prescribed a combination of aspirin and clopidogrel to thin the blood and prevent further acute coronary episodes. Both clopidogrel and aspirin may cause stomach bleeds and so a prophylactic proton pump inhibitor is frequently co-prescribed in order to prevent such bleeds. Recent mechanistic and observational studies suggest proton pump inhibitors may reduce the effectiveness of clopidogrel and so patients may not benefit as much as expected from combined aspirin and clopidogrel. The investigators propose a cohort study of patients prescribed clopidogrel + aspirin. Amongst these patients the investigators will measure the relative rate of acute coronary syndrome and death comparing patients with and without proton pump inhibitor treatment. To provide a more complete picture of the risks and benefits of treatment the investigators will also measure the relative rate of stomach bleeds in the same groups of patients. In addition, whether the inhibitory effect of proton pump inhibitors on the protective effect of clopidogrel is due to their inhibition of drug metabolising enzymes will be explored by assessing the effects of other drugs that inhibit the same enzymes.
This study will compare two strategies for bowel cleansing prior to inpatient colonoscopy: the entire preparation taken the night before the procedure versus half the preparation taken the night before the procedure, and the other half taken the morning of the procedure.