View clinical trials related to Gastro Esophageal Reflux.
Filter by:Monitoring oesophageal pH provides a definitive diagnosis of patients with gastro-oesophageal reflux disease (GORD), especially those in whom the association between reflux and symptoms is uncertain and those under consideration for anti-reflux surgery. Standard ambulatory investigation is normally performed by naso-oesophageal catheter however this is associated with considerable discomfort and in turn altered behaviour which reduces reflux provoking activities. Furthermore results of catheter based ambulatory pH studies are compromised by the high variability of acid exposure in patients with suspected GORD. Prolonging pH measurements by the catheter-free Bravo™ system from 24 to 48 and 96hrs significantly improves the consistency (reliability) and reproducibility of diagnoses based on oesophageal acid exposure, as well as the ability to associate acid reflux to symptom episodes. This improves diagnosis especially in those with intermittent symptoms. However pH monitoring does not provide a direct assessment of the underlying pathophysiology. Incompetence of the oesophago-gastric junction (OGJ) related to disruption of its structure and function is considered to be the most important cause of GORD. A more relevant assessment of the reflux barrier may be its distensibility (i.e. the ease with which the OGJ is opened to allow retrograde passage of gastric contents); however this is not assessed by current clinical investigations. Endo-FLIP (Crospon Medical Devices) is a new tool which assesses OGJ structure and function, and appears to provide relevant information regarding its distensibility and competence. This study applies to using Endo-Flip to record OGJ distensibility and Bravo to record acid exposure and symptom association in patients with reflux symptoms. The variability of pH measurements and symptoms and diagnostic accuracy will be assessed over 96hrs. Endo-FLIP results will then be compared against Bravo. The outcome of post investigation therapy will then be compared with Endo-Flip and Bravo results to assess if baseline testing can predict the outcome of acid suppression therapy. Study Hypothesis 1. There is a positive, continuous association between OGJ distensibility measured by Endo-FLIP on % acid exposure assessed by prolonged Bravo pH monitoring 2. The results of Endo-FLIP and prolonged Bravo predict treatment outcome of a trial of proton pump inhibitor therapy
The purpose of this research study is to measure acid reflux into the throat both before and after medical treatment in people who have had radiation therapy to their head and neck for the treatment of cancer. Many people who have received head and neck radiation therapy develop a dry mouth as a result of the radiation damage to their saliva glands. In addition to the discomfort associated with a dry mouth, the decrease in saliva may increase the severity of gastro-esophageal reflux disease (acid reflux). Acid reflux occurs when acid escapes from your stomach into your throat. You may not have any symptoms of acid reflux, but often it can cause symptoms of heartburn or chest discomfort. Acid reflux can be treated once it is diagnosed. Treatment consists of dietary changes, behavioral alterations, and medication. Medications are available that decrease the amount of acid in your stomach. Diagnosis of acid reflux is made with a pH-probe to test for acid in your throat.