Experimental microsurgical model in rats preventing duodenogastric reflux. A preliminary report.

For the purpose of studying the significance of the bile and duodenal reflux into the stomach in rats we present an experimental animal model which--in contrast to the procedures reported until now--can exactly be reproduced due to the advantage of microsurgical techniques, thus reducing the operative trauma and accidental results during experimentation. The surgical procedure consists of a pylorojejunostomy with a Roux-en-y loop. This experimental model offers the possibility to discern a great deal of the problems and conditions which may be responsible in the adverse effect of bile and/or duodenal juice on the gastric mucosa.