The importance of gastric emptying in reflux esophagitis: an experimental research on pigs.

A study was conducted on pigs to evaluate the importance of gastric emptying rate in reflux esophagitis development. Gastric emptying was previously measured in 25 pigs. Then, the following operative procedures were carried out: Heller's cardiomyotomy, common bile duct ligature, cholecysto-gastric anastomosis, and extramucosal duodenal myotomy on 10 animals (group A); the same procedures except extramucosal duodenal myotomy on another 10 animals (group B); common bile duct ligature and cholecysto-gastric anastomosis on the last 5 animals (group C).

Effectiveness of intraoperative L.E.S. pressure measurement during Nissen-Rossetti fundoplication.

A study was made to evaluate the effectiveness of Lower Esophageal Sphincter Pressure (L.E.S.