背景與目的：相較於其他先天性異常，先天性消化道異常較少被研究。本論文的目的是研究過去六年內本院小於二個月的嬰兒之先天性消化道阻塞。方法：1998 年元月至2004 年七月之間有35 位病嬰於國泰綜合醫院被診斷為先天性消化道阻塞，我們回溯性的分析其性別、年齡、臨床表現、診斷過程與預後。結果：會引起消化道阻塞的先天性消化道異常包括肥厚性幽門狹窄(46%)、無肛症(14%)、腸旋轉不良(11%)、巨結腸症(11%)、迴腸閉鎖/狹窄(9%)、十二指腸閉鎖/狹窄(6%) 與食道閉鎖合併氣管食道廔管(3%)。男/女比為2.89/1 (26/9)。症狀與徵象包括腹脹(93%)、非膽汁性的嘔吐(59%)、膽汁性的嘔吐(31%)、延遲(超過48 小時) 解胎便(17%) 與腹部腫塊(6%)。所有的病人都存活，平均住院17.2 天。結論：雖然先天性消化道異常很罕見，嬰兒若有不尋常的消化道症狀仍應將其列入鑑別診斷。會引起消化道阻塞的先天性消化道異常中最常見的是肥厚性幽門狹窄。傳統影像學在診斷消化道異常是十分有用的。

Background and Purpose: In contrast to other malformations, congenital anomalies ofthe gastrointestinal (GI) tract have scarcely been investigated. The purpose of this study was toevaluate the characteristics of congenital GI obstruction in young infants in the past 6 years at ageneral hospital in Taiwan. Methods: Medical charts of 35 patients diagnosed with congenital GIobstruction during January 1998 to July 2004 were reviewed. Results: A congenital GI anomalywhich caused alimentary tract obstruction included idiopathic hypertrophic pyloric stenosis(IHPS) in 16 (46%), an imperforate anus in 5 (14%), malrotation in 4 (11%), Hirschsprung diseasein 4 (11%), ileal atresia in 3 (9%), an annular pancreas in 2 (6%), and esophageal atresiawith a distaltracheoesophageal fistula in 1 (3%). The male/female ratio was to 2.89/1. The most commonpresenting sign or symptom was abdominal distension (93%), followed by non-bilious vomiting(59%) and bilious vomiting (31%). All patients survived. Conclusions: Infantswith unexplainedGI symptoms must be examined for the possibility of congenital anomalies of the GI tract. Themost common congenitalGImalformation is IHPS. Conventional radiology is still extremely usefulin diagnosing digestive tract anomalies.