Intestino-gastric Reflux in Dogs: Spontaneous, after Gastrojejunostomy, and after Roux-en-Y Gastrojejunostomy with Various Lengths of the Defunctioning Loop

Abstract

Intestino-gastric reflux was measured in dogs with duodenostomy and gastrostomy by using chromium-51 injected through the duodenostomy. No transpyloric reflux was demonstrated. When gastrojejunostomy was performed, a large reflux was demonstrated. After conversion of the gastrojejunostomy into a Roux-en-Y gastrojejunostomy with various lengths of the defunctioning loop, a decrease in reflux was demonstrated, significantly correlated to the length of the loop. The calculated length corresponding to no reflux was found to be 49 cm.

Key-words:

• Chromium-51
• dogs
• gastrojejunostomy
• gastrojejunostomy, Roux-en-Y
• reflux, antiperistaltic
• reflux, intestino-gastric