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The postoperative stomach as seen clinically and experimentally
Scandinavian Journal of Gastroenterology. Supplement
|January 1, 1981
Summary
Gastritis after stomach surgery may be caused by duodenal reflux. Preventing reflux with Roux-en-Y reconstruction resolved gastritis in dogs, suggesting this approach could benefit human patients.
Area of Science:
- Gastroenterology
- Surgical Pathology
- Cell Biology
Background:
- Gastritis is a common complication following gastric surgery.
- The exact cause of post-operative gastritis remains unclear.
- Standard surgical procedures can lead to inflammation at the stoma site.
Purpose of the Study:
- To investigate the cause of gastritis occurring after gastric surgery.
- To evaluate the efficacy of Roux-en-Y reconstruction in preventing or treating post-operative gastritis.
- To study gastric cell regeneration mechanisms in irradiated mice.
Main Methods:
- Dogs underwent standard gastrectomies, gastroenterostomies, and pyloroplasties.
- Roux-en-Y reconstruction was performed in some dogs to prevent duodenal reflux.
- Gastritis was induced by irradiation in mice, and cell regeneration was tracked using tritiated thymidine.
Main Results:
- Gastritis was observed at the stoma in dogs undergoing standard procedures.
- Histological gastritis resolved or did not occur when duodenal reflux was prevented by Roux-en-Y reconstruction.
- In mice, approximately 10% of newly formed chief and parietal cells contained tritiated thymidine, indicating derivation from mucus neck cells.
Conclusions:
- Duodenal content reflux through the stoma is a likely cause of gastritis after gastric surgery.
- Roux-en-Y reconstruction may be an effective strategy to prevent or treat post-operative gastritis.
- Mucus neck cells serve as progenitor cells for gastric chief and parietal cells during regeneration.