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目的 探讨远端胃在非营养液排空中的作用。方法应用γ闪烁成像仪和~（９９ｍ）锝－植酸钠组成的非营养液核素餐，对３组ＳＤ大鼠［正常组（ＮＧ）、剖腹探查组（ＬＧ）、远端胃切除、胃十二指肠吻合组（Ｂｉｌｌｒｏｔｈ Ⅰ ｇｒｏｕｐ，ＢＩＧ）］进行不同时期胃液体排空功能测定。结果ＮＧ大鼠在１６周内胃液体排空无明显变化（Ｐ＞０．０５）；ＬＧ大鼠在术后４周内胃液体排空存在延长现象（Ｐ＜０．０１），第８周才基本恢复至术前标准（Ｐ＞０．０５）；ＢＩＧ大鼠在第１６周胃液体排空仍没恢复到术前标准（Ｐ＜０．０１）。结论剖腹探查能暂时抑制胃非营养液排空；远端胃在非营养液排空中起着重要作用。
Objective To explore the role of distal stomach in the emptying of non-nutrient solution. Methods Non-nutrient solution nuclide meal consisting of gamma scintigraphy and ~ (99m) technetium-sodium phytate was used to study the effects of nornotomy on three groups of SD rats [normal group (NG), laparotomy group (LG) Gastric duodenal anastomosis group (Billroth Ⅰ group, BIG)] at different periods of gastric fluid emptying function determination. Results There was no significant change in gastric emptying in NG rats after 16 weeks (P> 0.05). There was an increase in gastric emptying in LG rats within 4 weeks (P <0.01) (P> 0.05). The gastric emptying in BIG rats did not return to the preoperative standard at the 16th week (P <0.01). Conclusion Exploratory laparotomy can temporarily inhibit the emptying of gastric non-nutrient solution. The distal stomach plays an important role in the emptying of non-nutrient solution.