Antroduodenal manometry is one of the methods to evaluate stomach and duodenal motility. This test is a valuable diagnostic tool for gastrointestinal motility disorders especially small intestinal pseudo-obstruction which is difficult to make definite diagnosis by clinical manifestations or radiologic findings. Manometric findings that have no evidence of mechanical obstruction and suggestive o...

Amyloidosis is a rare disorder caused by deposition of amyloid fibrils in various tissues causing structural and functional defects. Depending upon organs involved, it may be categorized as localized or systemic. Systemic amyloidosis involves multiple organs where some organs are affected more commonly than others. Diagnosis is often challenging as in a 76-yearsold female described here who pre...

Diabetes is probably the commonest cause of autonomic neuropathy, and causes functional changes in many systems including the cardiovascular, urogenital and gastrointestinal systems. Fainting, postural hypotension, gastroparesis, atonic bladder, and erectile dysfunction may all be associated with autonomic dysfunction in diabetes, and there may also be defective sweating and pupillary reflexes....

Irritable Bowel Syndrome (IBS) represents a functional disorder of gastrointestinal tract without the presence of an anatomic defect, in which abdominal pain is relieved with defecation and is associated with altered bowel habits.IBS includes a wide range of symptoms while its pathophysiology is very complicated. Recent studies indicate that the most important mechanisms include visceral sensit...

The functional esophageal disorders include globus, rumination syndrome, and symptoms that typify esophageal diseases (chest pain, heartburn, and dysphagia). Factors responsible for symptom production are poorly understood. The criteria for diagnosis rest not only on compatible symptoms but also on exclusion of structural and metabolic disorders that might mimic the functional disorders. Additi...

Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder with an estimated worldwide prevalence of 10-20%. IBS can be associated with severe gastrointestinal symptoms, including abdominal pain, bloating, and altered bowel function. Although the causes of IBS remain undefined, recent research has increasingly suggested roles for gut flora in IBS. These roles involve postin...