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An observational study to investigate the natural history and clinical course of children, adolescents, and young adults with symptoms of gastroparesis (e.g., nausea, vomiting, abdominal pain, bloating, distention) with either …

Children will complete questionnaires to ensure that they are qualified to enter the study and are likely to have normal gastric emptying rates. Informed consent/assent will be obtained. Breath samples …

Gastroparesis is a chronic digestive disorder defined by the symptoms of nausea, vomiting, bloating, and abdominal pain in the setting of objectively delayed gastric emptying without mechanical gastric outlet obstruction. …

Submucosal endoscopy is a novel subset of procedures which enables endoscopist to utilize the submucosal space to perform advanced endoscopic procedures. The submucosa is the third layer of the gastrointestinal …

In the Pediatric Gastroparesis Registry (PGpR), we will collect detailed epidemiological, clinical, psychological, and patient outcome data with the goal of classifying patients with gastroparesis and gastroparesis-like syndromes into pathophysiologically …