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目的：探讨不同分娩方式足月产儿脐血血浆胃动素、血清胃泌素水平，及其对产褥期母婴消化道症状的影响。方法：采用放射免疫法测定了足月妊娠不同分娩方式脐血血浆胃动素及血清胃泌素含量变化。结果：阴道分娩组血浆胃动素水平明显高于剖宫产组（ Ｐ＜ ００１），血清胃泌素也有显著差异（ Ｐ＜ ００５）。结论：为减少产褥期母婴胃肠道症状，多采用阴道分娩，剖宫产儿应早期母乳喂养，对胃动素水平特别低下者建议投以少量胃动力药。
Objective: To investigate the plasma levels of motilin and serum gastrin in umbilical blood of different birth modes of full-term infants and their effects on the gastrointestinal symptoms of maternal and infant during puerperium. Methods: The content of motilin and serum gastrin in umbilical blood of different birth modes of full term pregnancy were measured by radioimmunoassay. Results: The level of plasma motilin in vaginal delivery group was significantly higher than that in cesarean section group (P <001), and serum gastrin was also significantly different (P <005). Conclusion: In order to reduce the postpartum mothers and infants gastrointestinal symptoms, the use of vaginal delivery, cesarean section should be early breastfeeding, particularly low levels of motilin is recommended to cast a small amount of gastric motility drug.