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  • Title: Influence of vagal pyloric branches on gastric acid secretion and gastrointestinal motility in patients following a pylorus preserving pancreatoduodenectomy.
    Author: Sumida K, Nimura Y, Yasui A, Miyachi M, Shibata Y, Kobayashi I.
    Journal: Hepatogastroenterology; 1999; 46(25):336-42. PubMed ID: 10228817.
    Abstract:
    BACKGROUND/AIMS: The authors evaluated the influence of the vagal pyloric branches on the gastrointestinal function in patients who underwent a pylorus preserving pancreatoduodenectomy (PPPD). METHODOLOGY: Twenty-seven patients with pancreatobiliary and duodenal diseases underwent a PPPD between 1991 and 1994. We analyzed several variables including the daily volume of gastric juice, days of gastric suctioning, start of diet, gastric acid, and gastrin levels. In addition, a gastric emptying scintigram and gastrointestinal manometry were measured. These variables were compared between two groups, namely, those with retained superior pyloric branches of the vagus nerve (preserved group: n = 14), and those without these branches (non-preserved group: n = 13). RESULTS: There were no significant differences in basal acid output, maximum acid output, or plasma gastrin levels between the preserved group and the non-preserved group. In addition, a gastric emptying scintigram demonstrated no difference between the two groups. Finally, on gastrointestinal manometry, there was no significant difference between the two groups during gastric and jejunal phase III activity of migrating motor complex. CONCLUSIONS: Preservation of the vagal pyloric branches did not influence gastric exocrine and endocrine secretion, nor did it effect the gastric emptying of patients who underwent a PPPD.
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