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Early dumping syndrome occurs 10 to 30 minutes after a meal. It results from rapid movement of fluid into the intestine following a sudden addition of a large amount of food from the stomach. [ 1 ] The small intestine expands rapidly due to the presence of hypertonic / hyperosmolar contents from the stomach, especially sweet foods.
Recovery phase is typically the phase where vomiting ceases, nausea diminishes or is absent, and appetite returns. "Cyclic vomiting syndrome (CVS) is a rare abnormality of the neuroendocrine system that affects 2% of children." [1] This disorder is thought to be closely related to migraines and family history of migraines. [2] [3]
Vomiting (the expulsion of gastric contents) is usually preceded by retching, but retching and vomiting can occur separately [6] and involve different sets of muscles. [7] During a retch, thoracic pressure is decreased and abdominal pressure is increased , which may serve to position gastric contents and overcome esophageal resistance. [ 6 ]
Nausea in gastroparesis is usually postprandial, but morning or persistent nausea may occur. Vomiting is characterized by retching and forceful evacuation of gastric contents from the stomach up to and out of the mouth. Some patients may experience retching without gastric contents being expelled. [10]
Gastrointestinal infections (37%) and food poisoning are the two most common causes of acute nausea and vomiting. [1] Side effects from medications (3%) and pregnancy are also relatively frequent. [1] There are many causes of chronic nausea. [1] Nausea and vomiting remain undiagnosed in 10% of the cases.
Unlike rumination, gastroparesis causes vomiting (in contrast to regurgitation) of food, which is not being digested further, from the stomach. This vomiting occurs several hours after a meal is ingested, preceded by nausea and retching, and has the bitter or sour taste typical of vomit. [4]
It may be caused by various infections, with bacteria, viruses, fungi, parasites, or other causes. Common clinical manifestations of enterocolitis are frequent diarrheal defecations, with or without nausea, vomiting, abdominal pain, fever, chills, and alteration of general condition.
Here are the most common causes of abdominal distension classified as an underlying cause and as a secondary disease. As an underlying disease cause: Constipation; Lactose intolerance and other food intolerances; Overeating (due to overproduction of gases in the digestion process) As a secondary disease cause: Celiac disease