例1,女,6岁。因发作性呕吐半年于1990年8月1日入院。患儿于半年前始发呕吐,呈喷射状,为胃内容物及咖啡色液,伴腹部不适,颜面潮红或苍白,严重时常致轻、中度脱水,精神萎靡,嗜睡。每月发作1～2次,每次发作历时3～5日。曾4次住院分别诊断为“急性胃肠炎”、“胆道蛔虫症”等。经用阿托品等治疗效果差。 Example 1, female, 6 years old. Due to episodes of vomiting for six months in August 1, 1990 admission. Children emaciated half a year ago, was spray-like, as the stomach contents and brown liquid, with abdominal discomfort, facial flushing or pale, severe and often light, moderate dehydration, apathetic, drowsiness. Attack 1 to 2 times per month, each episode lasted 3 to 5 days. Had four hospitalizations were diagnosed as “acute gastroenteritis”, “biliary ascariasis” and so on. Atropine treatment with poor results.