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作者以Billroth Ⅰ式胃大部切除术(BIG)、保留幽门式胃大部切除(PPG)和幽门再造式胃大部切除术(RPG)3种胃大部切除术的动物模型进行胃排空(液体排空、钡剂排空)及返流(返流指数、胃液胆汁酸定量测定)对比观察。胃液体排空采用酚红双标本稀释法。结果显示3种手术后的液体排空均比术前加快;钡餐排空结果显示RPG开始排空时间慢于BIG,半量及完全排空时间与正常犬的胃排空相似,且与BIG组无明显差异。酚红返流指数测定结果显示BIG组明显高于RPG及PPG组,RPG组的返流明显少于BIG组。综上所述,RPG之再造幽门有较满意的节制排空及减少返流
The authors performed gastric emptying with animal models of the Billroth type I gastrectomy (BIG), reserved pylorus gastrectomy (PPG), and pylorus gastrectomy (RPG) three kinds of gastrectomy. (Compared with liquid emptying, elixiron emptying) and reflux (reflux index, quantitative determination of bile acid in gastric juice). Stomach liquid emptying using phenol red double-dilution method. The results showed that the three types of postoperative liquid emptying were all faster than before surgery. The results of meal emptying showed that RPG began emptying more slowly than BIG. Half-time and complete emptying time were similar to those of normal dogs, and there was no difference between BIG group and BIG group. Significant differences. The phenol red reflux index measurement results showed that the BIG group was significantly higher than the RPG and PPG groups, and the RPG group had significantly less regurgitation than the BIG group. In summary, the remodeling of the pylorus in the RPG has more satisfactory regulated emptying and reduced reflux.