目前所知,禁食时,小肠移行性运动复合波(MMC)Ⅲ相每隔几小时呈周期性地发生。一些肠易激综合征(IBS)患者对这种正常动力感知的增强很可能是腹部症状发生机制的因素之一。作者推测,如果IBS患者先天性地对小肠膨胀或收缩感知增强,则这种现象可能在MMC的第Ⅲ相最为明显,特别是在十二指肠,MMC起始时更是如此。本研究旨在检验上述假说。方法:肠易激综合征20例,受试前至少停药三天,包括辅助性纤维饮食。对照组10人,均无消化道症状或疾病史。用四腔导管记录胃窦、十二指肠进空肠的压力,记录持续整个晚上至第二天早上。夜间通常以10～ It is now known that during fasting small intestine migratory motor complex (MMC) phase III occurs cyclically every few hours. Some patients with irritable bowel syndrome (IBS) to enhance the perception of this normal motility is likely to be one of the factors in the pathogenesis of symptoms of the abdomen. The authors speculate that if IBS patients congenitally perceive expansion or contraction of the small intestine, this phenomenon may be most evident in the third phase of the MMC, especially at the onset of the duodenum and MMC. The purpose of this study is to test the above hypothesis. Methods: 20 cases of irritable bowel syndrome, withdrawal of at least three days before the test, including the auxiliary fiber diet. Control group of 10 people, no gastrointestinal symptoms or disease history. Four-chamber catheters were used to record the pressure in the antrum and duodenum into the jejunum, which was recorded throughout the night until the next morning. Night usually 10 ~