Clinical Value of Left Colic Artery in Laparoscopic Radical Rectectomy

Inclusion Criteria:

• Aged more then 18 years old;
• Diagnosed as rectal cancer with colonoscopic biopsy;
• Without metastasis;
• No Invasion of surrounding tissues;
• Limited operation;
• Underwent laparoscopic radical proctectomy(L-Dixon);
• BMI 18~30kg/m2;
• Without multiple primary tumors;
• Sign on the Medical informed Consent.

Exclusion Criteria:

• Simultaneous or simultaneous multiple primary colorectal cancer;
• Preoperative imaging examination results show: (1) Tumor involves the surrounding organs and combined organ resection need to be done; (2)distant metastasis; (3)unable to perform R0 resection;
• History of any other malignant tumor in recent 5 years;
• Patients need emergency operation;
• Not suitable for laparoscopic surgery;
• Women during Pregnancy or breast feeding period;
• Informed consent refusal