胃肠道肿瘤术后淋巴漏的发生并非罕见且无规律性，其原因除术中较大的淋巴管道切断而未妥善结扎外，常伴有淋巴系统发育异常或恶性肿瘤致淋巴管道阻塞等因素。淋巴管造影术或核素淋巴显影术并非诊断的常规检查。术后淋巴漏治疗首选保守治疗方法，肠外营养联合生长抑素的治疗效果较好，而长时程引流量>1000 mL/d或保守治疗无效则考虑传统开腹手术探查。预防术后淋巴漏应注意术中辨别并结扎靠近腹主动脉及髂血管周围的腹膜后淋巴管道。

Causes and treatment of chylous leakage after gastrointestinal tumor surgery        LIN Feng, CAI Guan-fu. Department of Gastrointestinal Surgery, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou510080, China
Corresponding author: LIN Feng, E-mail：sylf3133@21cn.com
Abstract    Chylous leakage is a potential irregular complication after gastrointestinal tumor surgery, which occurs as a consequence of disruption of the major abdominal lymphatics, and sometimes is associated with a congenital lymphatic malformation or malignant lymphatics obstruction. Standard lymphangiography or lymphoscintigraphy is not necessary for the diagnosis of chylous leakage. Conservative treatment should be recommended as the first-line therapy for postoperative chylous leakage, total parenteral nutrition combined with somatostatin therapy would result in high cure rate. Traditional surgical exploration is raised when conservative treatment is failed or the drain ?uid is more than 1,000 mL/day for a long duration. The major retroperitoneal lymphatic channels should be recognized intraoperatively and ligated properly to preventing chylous complications.