View clinical trials related to Gastroesophageal Reflux.
Filter by:Urinary tract infection (UTI) is a common problem in childhood associated with vesico-renal reflux (VRR) in 25-40% of children. A persistent VRR and repeated pyelonephritis may predispose to renal scarring and chronic renal failure with an end-stage renal failure in up to 3% of children.Defining a standard behaviour facing VRR in children is not easy because of the lack of reliable evidence. Numbers of studies compare prospectively or retrospectively, medical, endoscopical and surgical treatment.Surgical techniques are effective but invasive and not free of complication. Medical treatment is submissive to a good observance. The introduction of endoscopic techniques permits to prevent UTI and new renal failure by VRR elimination. Since the beginning of the endoscopic treatment, several bulking agents have been proposed. The ideal agent should be easy to inject, stable in time and should be safe. Of course it should be at least as efficient as actual bulking agent. The use of Teflon was the first wave of success of endoscopic treatment. But sudden passion of Teflon has been darkened by the notion of migration. Since, others substances have been proposed, autologous or exogenous, resorbable or not. But none was ideal and no solutions were found facing problem of biocompatibility or long-term stability.Using adipose tissue as a bulking agent is ancient in plastic surgery and indications had known a leap forward in the last century with Coleman who introduced a new technique called "lipostructure". This technique has known a growing interest in the restoration of all volume defects in plastic surgery because of the stability of the graft. We propose to apply this technique to VRR management in children in order to combine innocuousness and efficiency.
This study will seek to determine the amount of acids a person with a chronic cough that is suspected to be related to acid reflux breathes out after coughing. The study will also seek to determine if this measurement can predict the best treatment for the cough. Subjects with a chronic cough which is suspected to be related to acid reflux for which their doctor has prescribed a proton pump inhibitor medication will be enrolled in this study.
The purpose of this study is to identify markers in the blood and tissue that could indicate risk factors for the development and progression of esophagus cancer. This research aims to collect medical history, blood, and tissue samples from patients who present with an esophageal disorder. Identifying genetic and behavioral risk factors involved in the development of esophageal cancer might allow for early detection and prevention. Survival and an opportunity for a cure with esophageal cancer will depend greatly on the stage of diagnosis. Tumors can develop changes in their genetic (hereditary) make-up, and these changes can sometimes be seen in normal tissues before the development of cancer. These genetic (hereditary) changes can serve as tumor markers and can be detected using methods that study changes in genetic material like DNA and RNA. The analysis of proteins can provide additional information. By identifying changes in these molecules that are different or altered in cancer, the investigators can use methods and tests for the detection of these changes.
This study aims to characterize the permeability as well as some protein involved in the cell junction in the oesophageal epithelium in patients with GORD symptoms. In addition these patients will be characterized for their reflux especially by pH-impedancemetry, Bilitec and oesophageal acid perfusion test. Correlations between the characteristics of the reflux and the biological results will be calculated.
Gastro-oesophageal reflux (GOR) has been found to be prevalent in children with cystic fibrosis (CF)and may further worsen lung damage via reflex bronchospasm or pulmonary aspiration. Chest physiotherapy may result in increased episodes of GOR as demonstrated in children. Lung transplantation may worsen pre-existing GOR. This study will determine the prevalence, severity and significance of symptomatic and silent GOR in adults with CF before and after lung transplant using 24hr oesophageal pH monitoring, a valid symptom questionnaire, quality of life questionnaires and gastric emptying studies. This study will identify the extent of GOR in a large adult CF population and the impact on lung function and quality of life together with the effects of medical and physiotherapy treatment on gastro-oesophageal function.
By using combination of the expression of COX-2 and NOS and immunologic reaction in the esophagus with manometry of LES and cruel diaphragm and 24 hr esophageal pH monitoring to investigate the mechanisms and to make a new and more clinically applicable clarification of these reflux diseases will be valuable in the clinical management and prevention. We will perform the following works and complete the objectives: 1) comparing the difference of immuno-inflammatory reactions among NERD, reflux esophagitis and Barrett’s esophagus; 2) the different expression of PGs & COX-2 in functional heartburn, hiatus hernia, NERD, reflux disease and Barrett’s esophagus; determining the subtype of EP receptor (EP1~4); 3) determining and comparing the expression of NOS in the esophagus; 4) investigating the role of ROS in the esophagus; 5) in correlating cytokine, COX-2 and NOS with LESP, TLESR, diaphragm EMG and 24-hour esophageal pH ; 6) the difference of expression of cytokine, atrophic gastritis and Hp in gastric mucosa, in correlating with intragastric acid status, among functional heartburn, hiatus hernia, NERD, erosive esophagitis and Barrett’s esophagus; to determine whether should eradicate Hp in reflux esophageal disease; 7) the effects of lipid peroxidation related immunologic reaction, with relation to COX-2 and NOS, in the inflammatory activity and esophageal carcinogenesis of esophagus; 8) the effects of cytokines, COX-2 and NOS on the apoptosis in these reflux esophageal diseases; 9) integrating immuno-inflamatory reaction, COX-2, NOS with manometry of LES and diaphragm, and 24-hour pH monitoring and intragastric pH to newly clarify GERD into evidence based categories.
We hypothesize that gastric dysrhythmias may predispose the occurrence of gastroesophageal reflux.