BERLIN, Oct. 16, 2013 (GLOBE NEWSWIRE) -- Given Imaging (Nasdaq:GIVN), a world leader in specialty GI products and pioneer of capsule endoscopy, today announced numerous studies confirming the value of its reflux and manometry products in diagnosing, monitoring and managing a range of gastrointestinal diseases. The studies were presented at United European Gastroenterology Week (UEG Week), taking place from October 12-16, 2013 at the Internationales Congress Centrum Berlin where Given Imaging is exhibiting at Hall 15.1, Booth #7 throughout the conference. Results of more than 110 clinical studies of Given Imaging's products were presented at UEG Week this year demonstrating the breadth and utility of its portfolio. "New tools like high-resolution manometry and prolonged pH monitoring deliver more detailed and more relevant information that allow us to explain the causes of patient symptoms and to better manage patients with esophageal disorders," said Mark Fox, M.D., Division of Gastroenterology of University Hospital Zurich. "It is important that we continue to use these tools to select the most appropriate pharmacologic as well as surgical therapies." Key Given Imaging highlights include the following studies at UEG Week: pH and pH-Impedance Monitoring
- "Understanding the Cause of Persistent GERD Symptoms Despite Proton Pump Inhibitor Therapy: Impedance-pH Monitoring Revisited" (poster 460) : Daphne Ang M.D., Changi General Hospital, Department of Gastroenterology, Singapore, presented data on use of impedance-pH testing showing that both acid reflux and non-acid reflux events account for persistent symptoms in PPI (proton pump inhibitors) non-responders, especially patients with typical reflux symptoms. Authors noted that therapies beyond PPI may be necessary.
- "The Real Prevalence of Functional Heartburn: The Lesson of Prolonged Wireless pH Monitoring" (poster 1598): Roberto Penagini M.D. of the Cattedra di Gastroenterologia, Università degli Studi and Fondazione IRCCS, Ospedale Maggiore, Mangiagalli e Regina Elena, Milan, Italy, presented a study showing how use of either a 48-hr catheter or 48 to 96-hr wireless study can provide a more accurate diagnosis of functional heartburn than standard of care. Functional heartburn is diagnosed in patients with heartburn refractory to PPIs when endoscopy, esophageal acid exposure time (AET), and symptom index (SI) are negative. Diagnosing functional heartburn is important as it often leads to a change in the way patients are managed.
- "Assessment of Patients Referred for GERD Evaluation: To Continue or Stop Acid Suppressants Before Functional Tests? " (oral presentation 379): Presenter Daphne Ang M.D., of Changi General Hospital, Department of Gastroenterology, Singapore, showed data from a study involving 2925 patients that aimed to determine the diagnostic yield of functional studies performed on and off proton pump inhibitor (PPI) therapy. Investigators concluded that among those GERD patients with insufficient treatment response, improved diagnostic yield was achieved with multichannel intraluminal impedance-wireless pH monitoring performed on PPI therapy for evaluation of non-acid reflux and off therapy for acid reflux evaluation.
- "Esophageal Work-Up Prior to Bariatric Surgery: Who and How to Investigate?" (poster 1599): Benjamin Heimgartner, M.D., Inselspital, Bern University Hospital, Gastroenterology and Hepatology, Bern, Switzerland, presented data from this study that examined the optimal diagnostic work-up in an obese patient population. Results showed that reflux monitoring is superior to endoscopy in detecting GERD, yet a substantial number of patients with erosive esophagitis had "normal" esophageal acid exposure. Since typical reflux symptoms do not predict the presence of esophagitis and abnormal acid exposure, the study investigators recommend including endoscopy and reflux monitoring as part of the pre-operative work-up prior to bariatric surgery.
- "Long Term Outcome of Patients with Reflux Symptoms and Symptomatic Esophageal Dysfunction During and After a Standardized Test Meal: A High-Resolution Manometry Study " (poster 1587): Mark Fox M.D., Nottingham University Hospital NIHR Digestive Disease BRU, United Kingdom, presented results from a study to assess esophageal function and symptoms using high resolution manometry (HRM) with 5ml water and a test meal followed by 10min post-meal observation of symptoms and events. HRM studies which include a test meal and post-meal observation provide an objective explanation for symptoms in the majority of patients investigated for reflux symptoms. Long-term follow-up suggests this information can guide management.
- " Prevalence of Relaxation Disorders of the Lower Esophageal Sphincter in Patients Undergoing High Resolution Manometry" (poster 1585): Presented byJutta Keller M.D., Israelitisches Krankenhaus Internal Medicine, Hamburg, Germany, this study used esophageal manometry to determine the integrated relaxation pressure (IRP) according to the Chicago Classification in 787 patients. Results showed that LES (lower esophageal sphincter)-relaxation occurred in more than 10% of patients undergoing high resolution manometry.
- " Factors that Affect the Disruption of Esophagogastric Junction and its Relation with High Resolution Manometry Alterations and Acidic Reflux" (poster 1007): Constanza Ciriza de Los Rios M.D. of the Hospital 12 de Octubre, Dept. de Gastroenterologia, Madrid, Spain, presented data from a study of 115 patients evaluating the risk factors associated with esophagogastric junction disruption (EGJ) and the relationship between esophagogastric junction type, manometric alterations and acid reflux. The study results indicated that high resolution manometry (HRM) facilitates the investigation of the OGJ and its progressive disruption showing that age, weight and central obesity pose a greater risk for hiatus hernia. Greater EGJ disruption is associated with lower pressure, esophageal shortening, and higher acid exposure in pH-metry.