胃癌根治术中No.8淋巴结清扫的意义和技巧

Significance and Surgical Skill for Lymphadenectomy Around Common Hepatic Artery in Gastric Cancer

目的探讨胃癌根治术中No.8淋巴结清扫的意义和技巧。方法结合我院胃肠外科专业组2001年1月至2006年12月期间清扫No.8淋巴结的部分临床资料(257例)和手术实践,提出在处理胃癌根治术清扫该组淋巴结的经验和体会。结果No.8淋巴结清扫个数平均(2.2±1.7)个,No.8淋巴结转移率为30.35%,本组病例无吻合口漏、淋巴管瘘、术后出血等并发症发生。肝总动脉鞘内清扫、胃左静脉自根部切断结扎和充分的解剖显露是彻底清扫No.8淋巴结的关键。充分的解剖显露包括游离肝总动脉、血管带牵引肝总动脉、Kocher切口显露胰腺后方等。结论熟悉肝总动脉周围解剖,仔细分离显露,重视淋巴结清扫的手术技巧,对提高No.8淋巴结清扫的效果十分重要。

Objective To investigate the significance and surgical skill for lymphadenectomy around common hepatic artery in gastric cancer. Methods Two hundred and fifty-seven cases with undergoing lymphadenectomy around common hepatic artery in gastric cancer between January 2001 and December 2006 were retrospectively reviewed. Experiences and understanding of dealing with this procedure in curative gastrectomy for gastric cancer were concluded. Results The number of dissected No. 8 lymph node was 2.2±1.7, and the positive rate of No. 8 lymph node was 30.35%. There were no lymphadenectomy related complications, such as anastomotic leakage, lymphatic fistula and postoperative hemorrhage in this series. Dissection around common hepatic artery lymph nodes along artery intrathecal space, division and ligation of left gastric vein at its root, and sufficient exposure of anatomic structures were important to dissection lymph nodes around the common hepatic artery. The exposure of anatomic structures included liberation of common hepatic artery by traction with the band, and the exposure of posterior side of pancreas by Kocher incision. Conclusion Being familiar with the anatomy around common hepatic artery, careful dissection, and attention to the surgical skill of lymphadenectomy are very important to improve the effectiveness of lymphadenectomy around common hepatic artery in gastric cancer.