[Effects of proximal gastric vagotomy (PVG) and total vagotomy (TV) on the coordination of the interdigestive myoelectric acitivity of the canine stomach and duodenum].
Interdigestive myoelectrical activity of the canine stomach and duodenum is organized in complexes of high-amplitude action potentials originating simultaneously in the stomach and duodenum every 80-180 minutes. This type of activity has been described as the "interdigestive myoelectrical complex" (IDMEC) by Szurszewski. The present work was undertaken to elucidate the role of the vagus nerve in control of the IDMEC. Dogs were prepared with chronically implanted Ag-AgCl-electrodes on the stomach and duodenum. Fasting myoelectrical activity was recorded in the normal animal, after proximal gastric vagotomy (PGV), and after truncal vagotomy (TV). PGV did not affect the IDMEC, but TV abolished the pattern for the period of observation (3 months). The authors discuss the possible role of interference by TV with gastrodeuodenal interdigestive motor activity in the pathogenesis of reflux gastritis after vagotomy and drainage.
D000200:Action Potentials; D000818:Animals; D004063:Digestion; D004285:Dogs; D004594:Electrophysiology; D005260:Female; D005756:Gastritis / Q000209:etiology; D013270:Stomach / Q000502:physiology*; D014628:Vagotomy / Q000379:methods
Auswirkungen der proximalen gastrischen Vagotomie (PGV) und der totalen Vagotomie (TV) auf die Koordination der Interdigestiven myoelektrischen Aktivität von Magen und Duodenum beim Hund