Related Experiment Video
Updated: Aug 11, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
[The emptying process of the residual stomach after various methods of anastomoses (author's transl)]
Abstract:
Similar to the high pressure zone of the lower esophageal segment (LES) gastric emptying results from alternating intraluminal pressure in the antrum, pylorus and duodenum. Alterations of this antro-duodenal pressure zone depend on hormonal and nervous control mechanisms and are regulated by intraduodenal localized pH-, osmo- and fat-receptors. Experimental investigations in partially gastrectomized dogs emphasize the important role of the duodenum for gastric emptying. After resection of the lower half of the stomach and reconstruction of the orthograde passage between the gastric remnant and the duodenum by gastroduodenostomy (b i-anastomosis), a hormonally controlled gastric emptying comparable to that of the intact organ can be noticed.
Related Concept Videos
Anastomoses
Anastomoses can be formed at arterial, venous, and lymphatic vessels.
Arterial Anastomosis: These occur between arteries. They are most common in...
Gastric Emptying
Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD:
Peptic Ulcer Disease V: Surgical Management and Nursing Care
Surgical Interventions for Peptic Ulcer Disease
Pyloric Obstruction

