Delayed gastric emptying; Gastric stasis
Gastroparesis is a syndrome characterized by delayed gastric emptying in the absence of mechanical obstruction of the stomach. It is traditionally associated with nausea, vomiting, postprandial fullness, early satiety, bloating, and abdominal pain.
The etiology is multifactorial and the most common causes are diabetes, postsurgical status, and idiopathic. Other causes include medication, Parkinson’s disease, collagen vascular disorders, thyroid dysfunction, liver disease, chronic renal insufficiency, intestinal pseudo-obstruction, and miscellaneous.
Gastroparesis may be due to abnormalities of the fundus (post-vagotomy state, diabetes mellitus, and functional dyspepsia), abnormalities in antroduodenal contraction (low amplitude, frequency, and decreased antral motor function or dysfunction), pyloric dysfunction (idiopathic hypertrophic stenosis and diabetes gastroparesis), or abnormalities in small bowel motility. Diabetic...