Summary
To clarify changes in gastric acid and gut hormone secretion after pylorus-preserving pancreaticoduodenectomy (PPPD), an experimental study was performed using a model of pylorus-preserving duodenectomy in dogs previously provided with Heidenhain pouch (HP). The duodenectomy involves resection of the duodenum and 10 cm of the proximal jejunum preserving 2 cm of juxtapyloric duodenum and round-shaped duodenal wall around pancreatic papilla. Reconstruction was done by anastomosing the θ-shaped jejunal loop to gallbladder, juxtapyloric duodenum and peripapillar round-shaped duodenal wall with ligation of the common bile duct. For these dogs, intravenous glucose tolerance test (IVGTT), oral glucose tolerance test (OGTT), meal ingestion test (TM) and histological studies of pancreatic specimen obtained at autopsy were performed investigating pancreatic, gastric acid and gut hormone secretion. Preservation of endocrine and exocrine pancreatic secretion after operation demonstrated our experimental model to be adequate for evaluation of the factor of duodenectomy in PPPD on gastric acid and gut hormone secretion avoiding the influences of changes in pancreatic secretion. Postprandial gastric acid secretion from HP did not change significantly after operation. Postprandial secretion of gastrin, glucagon, GIP and enteroglucagon did not alter significantly after operation. These results indicated that in the clinical PPPD procedure, preservation of more than 2 cm of duodenum from the pylorus produced neither postprandial gastric acid hypersecretion, which might be cause of postoperative stomal ulcer, nor any change of related gut hormone secretion.
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Naito, H., Sasaki, I., Takahashi, M. et al. An experimental study on the gastric acid and gut hormone secretion after pylorus preserving duodenectomy in dogs. Gastroenterol Jpn 27, 317–326 (1992). https://doi.org/10.1007/BF02777749
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DOI: https://doi.org/10.1007/BF02777749