4.3 Article

Preservation of left colic artery in laparoscopic colorectal operation: The benefit challenge

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WORLD JOURNAL OF GASTROINTESTINAL SURGERY
卷 15, 期 5, 页码 825-833

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BAISHIDENG PUBLISHING GROUP INC
DOI: 10.4240/wjgs.v15.i5.825

关键词

Cancer; Complete mesenteric resection; Inferior mesenteric artery; Urinary complications; Lymph

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This study investigated the prognostic significance of preserving the left colic artery (LCA) in colorectal cancer surgery. The results showed that preserving the LCA can reduce the incidence of postoperative complications and has no significant impact on patients' survival rate and recurrence rate.
BACKGROUND During laparoscopic resection for colorectal cancer, there is controversy regarding whether the left colic artery (LCA) should be preserved at its origin.AIM To investigate the prognostic significance of preservation of the LCA in colorectal cancer surgery.METHODS Patients were divided into two groups. The high ligation (H-L) technique (refers to ligation performed 1 cm from the beginning of the inferior mesenteric artery) group consisted of 46 patients, and the low ligation (L-L) technique (refers to ligation performed below the initiation of the LCA) group consisted of 148 patients. Operative time, blood loss, lymph nodes with tumor invasion, postoperative complications and recovery time, recurrence rate, and 5-year survival rate were compared between the two groups.RESULTS The average number of lymph nodes detected in postoperative pathological specimens was 17.4/person in the H-L group and 15.9/person in the L-L group. There were 20 patients (43%) with positive lymph nodes (lymph node metastasis) in the H-L group and 60 patients (41%) in the L-L group. No statistical differences were found between the groups. Complications occurred in 12 cases (26%) in the H-L group and in 26 cases (18%) in the L-L group. The incidences of postoperative anastomotic complications and functional urinary complications were significantly lower in the L-L group. The 5-year survival rates in H-L and L-L groups were 81.7% and 81.6%, respectively, and relapse-free survival rates were 74.3% and 77.1%, respectively. The two groups were similar statistically.CONCLUSION Complete mesenteric resection combined with lymph node dissection around the inferior mesenteric artery root while preserving the LCA is a beneficial surgical approach during laparoscopic resection for colorectal cancer.

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