Distal gastrectomy is the most frequently performed procedure for gastric cancer. Gastric emptying after distal gastrectomy is generally considered to be accelerated due to resection of the antrum, pylorus, and duodenal bulb. Food residue, however, is frequently observed in the gastric remnant in patients after distal gastrectomy at the time of endoscopy after routine overnight fasting. This observation suggests delayed gastric emptying and conflicts with the general understanding of accelerated gastric emptying after distal gastrectomy. We searched for reports that evaluated the separate gastric emptying of liquids and solids with scintigraphy after distal gastrectomy in humans and also addressed the physiologic changes in gastric emptying after distal gastrectomy. Most all reports showed that gastric emptying of liquids after distal gastrectomy was accelerated compared to healthy controls, especially immediately after feeding. In contrast, some gastric emptying of solids was accelerated early after the meal ingestion, but thereafter emptying of solids remaining in the stomach was delayed beginning about 60 min after the meal in patients after distal gastrectomy. This delayed solid gastric emptying after distal gastrectomy was considered associated with food residue in the remnant stomach. We conclude that gastric emptying after distal gastrectomy was accelerated for liquids and solids soon after the meal ingestion but delayed for solids later than 60 min after the meal ingestion.
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| http://dx.doi.org/10.1540/jsmr.61.20 | DOI Listing |
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