目的    探讨全结肠系膜切除（complete mesocolic excision，CME）在腹腔镜左半结肠癌根治术中应用的可行性。方法    回顾性分析上海交通大学医学院附属瑞金医院普外科2010年9月至2012年12月在腹腔镜左半结肠癌根治术中行CME31例病人的临床资料及相关手术视频图片资料；采用手术分级系统评价手术质量；分析手术安全性及可行性，探讨腹腔镜CME左半结肠癌根治术的解剖层次及技术要点。结果    均以中间入路完成腹腔镜CME左半结肠癌根治术，超声刀锐性分离脏壁层筋膜，保持结肠系膜完整性，达到血管根部结扎；手术平均时间（106±15）min，平均出血量（105±74）mL，平均住院时间（11.1±2.8）d，术后发生并发症4例（12.9%）。手术质量等级评估A级28例，B级3例，淋巴结清扫总数为（13.9±5.0）枚，Ⅲ期病人中，中央组淋巴结阳性率15.8%（3/19）。结论    腹腔镜CME左半结肠癌根治术安全可行；远期疗效有待进一步研究。

Laparoscopic complete mesocolic excision (CME) for left-sided colon cancer: analysis of feasibility and technical tips        ZONG Ya-ping , HAN Ding-Pei , LU Ai-Guo , et al.Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Minimally Invasive Surgery Center, Shanghai 200025, China
Correspondence author: ZHENG Min-Hua ,E-mail:  zmh_tiger@yeah.net ; LU Ai-Guo ,E-mail:adams_lu66@aliyun.com
Abstract    Objective    To investigate the feasibility and technical tips of laparoscopic complete mesocolic excision (CME) for left-sided colon cancer. Methods    The clinicopathological data of 31 cases with left-sided colon cancer underwent laparoscopic CME between September 2010 and December 2012 in our center was analyzed retrospectively. The quality of surgery was staged by the system reported by West, anatomic planes and technical tips were also elucidated by pictures and videos. Results    All the 31 cases were successfully performed laparoscopic CME. Sharp dissection of the visceral plane from somatic one was performed to keep the integrity of mesocolon. Central ligation of the supplying vessels was needed to obtain an increased lymph node removal. The mean operative time was 106±15 min and the blood loss was 105±74 m1. The mean time for hospitalization were 11.1±2.8 days. Complications were observed in 4 cases (12.9%). 28 cases were evaluated pathologically as Grade A and 3 were Grade B. The total number of lymph nodes removed was 13.9±5.0. In the cases of stage III, the positive rate of principle lymph nodes was 15.8% (3 /19cases). Conclusions    Laparoscopic CME for left-side colon cancer with medial access is technically feasible and randomized trials are needed to evaluate its long-term outcomes.