微创手术是近年外科发展的新趋势。腹腔镜手术已在小儿外科应用的越来越多。但术中需行人工CO2气腹,而婴儿的呼吸和循环功能较为脆弱,对缺氧的耐受差,腹腔容积小,腹膜吸收CO2快,易发生严重的生理紊乱。本研究通过全麻加硬膜外阻滞及全麻两种麻醉方法,比较其呼吸、循环、血气、 Minimally invasive surgery is a new trend of surgical development in recent years. Laparoscopic surgery has been applied more and more in pediatric surgery. However, artificial intraoperative CO2 pneumoperitoneum, while the infant respiratory and circulatory function is more vulnerable to poor tolerance to hypoxia, abdominal volume is small, fast peritoneal CO2 absorption, prone to serious physiological disorders. In this study, anesthesia plus epidural block and general anesthesia two anesthesia methods, compare their breathing, circulation, blood gas,