Dogs with a Gastric Fistula: A Simple but Advanced Model for Simultaneous Recording of Secretion, Motility, Blood Flow and Output of Hormones

The conscious dog with a gastric cannula and permanent catheters in the portal vein and gastric arteries can be used for chronic simultaneous investigations of gastrointestinal functions. We have used the model for the recording of gastric secretion, blood flow, output of hormones and antroduodenal motility. The procedures for surgery, measurements, maintenance and pitfalls of the model are described