Application value of left-hand control technique in D3 surgery of right hemicolonic cancer Zhao Yuzhou, Han Guangsen (Department of General Surgery, Henan Cancer Hospital, Zhengzhou 450003, China) Department of General Surgery, Henan Cancer Hospital Zhao Yuzhou, Chinese Journal of Modern Surgery, 2011, No.1 [Abstract] Objective To explore the clinical application value of left-hand control technique in right hemicolonic cancer surgery. Methods To retrospectively analyze the clinicopathological data of 153 patients operated for right hemicolonic cancer, among which 78 cases used left-hand control technique to clear the lymph nodes of the 3rd station (observation group), and 75 patients used the conventional surgical method in the same period (control group), among which there were 18 cases of C3 stage patients in the observation group, and 10 cases in the control group, and to compare the operation time, the amount of intra-operative bleeding, the hospitalization time, and the number of lymph nodes cleared in the two groups. RESULTS The operation time and intraoperative bleeding were significantly reduced in the observation group compared with the control group (P0.051.2 Surgical methods 1.2.1 Observation group ①Adopt median or right paramedian incision to enter the abdomen, and the tumor can be radically resected when the exploration is clear and there is no distant metastasis. ② Cut the greater omentum at the pre-cut point of transverse colon, above to the gastric omental vascular arch and sweep the subpyloric lymph nodes along the right vascular arch of gastric omentum to the right, below to the edge of the transverse colon, dissect the transverse colon with linear cutting anastomosis, and incise the transverse mesentery of the transverse colon in an avascular area to the vicinity of the middle vascular root of the colon. (iii) The ileum is dissected with the same straight-line cutting anastomosis along the ileal pre-resection point. (iv) The ileocolonic vessels were severed, the superior mesenteric vein vascular sheath was opened and freed proximally, and the right colonic vessels were severed. ⑤Kocher’s incision was performed, and the main trunk of the superior mesenteric vessels was controlled with the left hand from Kocher’s incision, and the lymph nodes of the root of the superior mesenteric vein and the lower margin of the pancreas were cleared, the trunk of the gastrocolic vein was severed, and the vein of the middle colonic artery was severed if necessary according to the site of the tumor. (6) Complete resection of the right hemicolon was performed along the anterior renal fascia from the inside out to free the specimen. (7) Use disposable anastomosis to perform ileocolonic anastomosis. (8) Close the mesenteric fissure, place an abdominal drain, count the instrument dressings, and close the abdomen.1.2.2 The incision and exploration of the control group is the same as that of the observation group, and the specimen is resected by the traditional method［3］, and the digestive tract reconstruction and closure of the abdomen is the same as that of the observation group.1.3 Statistical methods Data processing is carried out using the SPSS10.0 statistical software, and the comparison of the mean of each observational index is carried out by the t-test, and the comparison of counting data is carried out by the χ2 test, (P0.05). (P0.05), while intraoperative bleeding (P