View clinical trials related to Gastroesophageal Reflux.
Filter by:Silastic rings have been used around the gastric pouch in order to promote better weight loss after Roux-and-Y gastric bypass surgery ( RYGBP). However the investigators have shown that some patients developed gastroesophageal reflux disease after RYGBP in a previous study. The investigators hypothesized that the use of a silastic ring may play a role in promoting GERD after this operation.
The purpose of this study is to determine the safety and effectiveness of two separate procedures to treat gastroesophageal reflux disease (GERD) also known as heartburn. The two therapies are: 1) a banding procedure alone using the Cook® 6 Shooter™ Saeed Multi-Band Ligator or 2) a banding/shaving procedure called Endoscopic Mucosal Resection (EMR) using the Cook® Duette™ Multi-Band Mucosectomy device.
The purpose of this research study is to assess how safe, effective (how well it works), and tolerable (to put up with) the drug Zegerid is in reducing reflux episodes in patients who have both gastroesophageal reflux disease (GERD) and Barrett's esophagus. Zegerid has been approved by the US Food and Drug Administration (FDA) for the treatment of GERD. The investigators hope to learn the effectiveness of Zegerid for reducing the amount of acid reflux patients are experiencing in the esophagus (swallowing pipe).
Gastroesophageal reflux events generally happen during relaxation of lower esophageal sphincter. This relaxation is a reflex that is triggered by gastric stimuli. The investigators hypothesize that abnormal relaxation of the gastric wall after a meal may lead to reflux events. To test this hypothesis, a study was designed to measure the gastric accommodation in patients undergoing esophageal impedance monitoring.
This is an observational, prospective and pilot study to determine through confocal endomicroscopy diagnostic microscopic features detectable at the gastroesophageal junction of patients with non-erosive gastroesophageal reflux disease. The hypothesis is that minimal mucosal changes occur in non-erosive gastroesophageal reflux disease. Although these minimal changes are not always visible on white-light endoscopy, it is detectable using high-resolution confocal endomicroscopy and these confocal features are diagnostic of non-erosive reflux disease (NERD).
The study objective is to evaluate the relative merits, safety and effectiveness of Transoral Incisionless Fundoplication (TIF) in GERD patients currently treated with daily Proton Pump Inhibitors (PPIs).
To understand the dose-response characteristics of PF-00885706 for efficacy in terms of symptomatic relief when used as add-on treatment to esomeprazole 20mg (standard proton pump inhibitor [PPI] treatment), in subjects with gastro-esophageal reflux (GERD) who have inadequate relief with PPIs.
Although the symptomatic and epithelial (histologic and endoscopic) response to antireflux therapy are well known and extensively studied, little is known of the genetic events occurring in response to proton pump inhibitor therapy. Preliminary data from our laboratory has shown, for example, that COX-2 expression is not only elevated in patients with gastroesophageal reflux disease but also can be correlated with pathologic esophageal acid exposure on 24 hour pH monitoring. Similar studies have suggested that antireflux surgery may normalize COX-2 gene expression. In contrast studies following ablation of dysplastic Barrett's epithelium have shown persistence of genetic changes associated with altered cellular function, despite the return of the histologic appearance to normal. Several key mediators of inflammation, metaplasia (Barrett's) and neoplasia have now been well characterized and shown to be important factors in the pathogenesis of esophageal injury. It is likely that successful antireflux therapy returns altered expression of these mediators toward normal although this hypothesis remains largely unexplored. The aim of this study is to investigate gene expression of key mediators of the spectrum of esophageal mucosal injury and the response to antireflux therapy. Hypothesis: Antireflux therapy (proton pump inhibitor and surgical fundoplication) normalizes the expression of genes known to be involved in the pathogenesis of inflammation (esophagitis), metaplasia (Barrett esophagus) and neoplasia (adenocarcinoma).
The purpose of this project is to test how safe and how well AST-120, an investigational product, works in treating too much acid in the stomach. Patients will be randomly assigned to one of two groups, AST-120 or a placebo for the first four weeks of the study. The patients will be switched to the other group (AST-120 or placebo)for the following four weeks.
The purpose of this study is to evaluate the demographics, patients symptoms, and findings during endoscopy. Patients presenting for an endoscopy procedure to the KCVA GI endoscopy suite, will be asked to fill out questionnaires pertaining to their symptoms and indications for the procedure. This will be done before their procedure during the interview period preceding endoscopy. The patient's answers to this questionnaire will aid us in determining the prevalence of gastric and esophageal disease in patients presenting with the complaints of dyspepsia, GERD, or extraesophageal symptoms and to also determine whether the presence of any factors (hiatal hernia, NSAID use, age, race, gender, etc.) contribute to the above endoscopic diagnoses.