[The emptying process of the residual stomach after various methods of anastomoses (author's transl)].

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.