Delayed emptying of solids by the stomach in the absence of any mechanical obstruction.
Key symptoms are chronic nausea, vomiting, epigastric pain, bloating, and early satiety.
Gastric emptying scintigraphy demonstrating >10% retention of the radionuclide meal at the end of 4 hours is diagnostic.
Usually idiopathic; however, other common etiologies include diabetes mellitus and previous gastric surgery.
Treatment options include prokinetic agents, antiemetics, analgesia, and maintenance of optimal nutritional status.
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