患儿．男，5天。因腹胀伴呕吐则6时入院。系第三胎第二产．孕35周早产，剖宜产。Apgar评分7’．9’。有胎膜早破史。父母非近亲结婚，生后一般憎况好。出生第4天出现腹胀．是进行性加剧，同时伴呕吐，非喷射性，呕吐物为日内容物，偶呈咖啡样。拒奶，哭声低弱。查体：体温38．5℃ Children. Male, 5 days. Due to abdominal distension and vomiting, 6:00 admission. Department of third-generation second-born. 35 weeks pregnant premature birth, cut appropriate production. Apgar score 7 ’. 9’. A history of premature rupture of membranes. Parents of non-relatives married, generally hate good health. Bloating on day 4 of birth. Is progressive increase, accompanied by vomiting, non-jet, vomit for the contents of the day, even a coffee-like. Refused to milk, cry low and weak. Physical examination: body temperature 38.5 ℃