Gastric Drainage Procedures: Effects in Normal Dogs II. Clinical Observations and Gastric Emptying

Abstract

Complete gastric emptying time using barium sulfate mixed with commercial canned dog food was measured radiographically in 29 mature mixed breed dogs before and 3 to 4 weeks after Fredet-Ramstedt pyloromyotomy (FRP) (6 dogs), Heineke-Mikulicz pyloroplasty (HMP) (6 dogs), Finney pyloroplasty (FP) (6 dogs), Jaboulay's gastroduodenostomy (JG) (6 dogs), and antral gastrojejunostomy (AG) (5 dogs). The dogs were observed for clinical evidence of side effects. Postoperative endoscopic examination and double contrast gastrography were performed to subjectively evaluate the diameter of the gastrointestinal communication and the amount of enterogastric reflux. Although none of the procedures significantly (p less than 0.05) altered gastric emptying time, the overall tendency was toward slowing down gastric emptying time. The severity of gastrointestinal side effects and enterogastric reflux appeared to be related to the size and/or location of the gastrointestinal opening.

Comparison of the Effect of Laparoscopic and Conventional Pyloric Surgery on Gastric Emptying in Dogs

“…No difference among the different conventional surgical techniques could be demonstrated. 14,17 In our study, the total gastric emptying time varied between 5 and 11 h in the preoperative period. Other studies have reported a complete gastric emptying time of around 5-15 h in normal dogs and a great individual variability in these results.…”

“…16 A limitation of the current study involves the incapacity to determine the rate of gastric emptying. 17 Although pyloroplasty is frequently used in dogs, previous studies 14,17,19,20,41 have shown faster emptying of liquids and no change in the emptying of solids following pyloroplasty. Other studies 5,33,42,43 have shown that Heineke-Mikulicz pyloroplasty is associated with an enhanced postoperative gastric emptying, even compared with Ramstedt pyloromyotomy.…”

“…In experimental studies 14,17 the quantification of gastric emptying was determined in dogs using a barium test meal before and after treatment. No difference among the different conventional surgical techniques could be demonstrated.…”

“…Our results do not state that the decreased gastric emptying time obtained in this study would occur when treating clinically ill dogs. Nevertheless, the good results of pyloric surgery in dogs by conventional surgical approach have already been established by both research 14,17,19,20,23,42,43 and clinical studies. 1,4,5,13,32,33,44 In conclusion, we evaluated 20 dogs after conventional and laparoscopic pyloric surgery and concluded that a laparoscopic technique appears to be as effective as the open technique for accelerating gastric emptying.…”

“…The diagnosis is based on the history, physical examination, endoscopic evaluations, radiographic or fluoroscopic findings, and results of histologic examinations. 1 Radiological studies help confirm the diagnosis of gastric emptying abnormalities, [2][3][4] and radioisotope studies, [5][6][7][8] barium-impregnated polyethylene spheres (BIPS), [9][10][11][12] liquid barium, 13 and barium-food mixtures [14][15][16][17] have been used to evaluate the rate of gastric emptying time in dogs.…”