Antroduodenal motility before, during, and after food intake in patients with X-ray-negative dyspepsia and abnormal duodenal loop and in healthy people.

Antroduodenal motility was studied before, during, and after food intake in patients with X-ray-negative dyspepsia and abnormal duodenal loop and in normals. No differences were observed between X-ray-negative dyspepsia and a proximally located abnormal duodenal loop. Patients with a distal duodenal anomaly had significantly higher food-stimulated duodenal activity than any of the other groups studied, whereas no differences were observed in antral motility.