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Updated: Aug 15, 2026

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
Published on: March 24, 2023
[Evaluation of the minimal invasiveness of laparoscopic operation for colorectal carcinoma]
Xiang Hu1, Hai-zhi Li, Jian Zhang
1Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China. tiandayu_ 2000@163.com
Objective:
To investigate the minimal invasiveness of laparoscopic operation for colorectal carcinoma.
Methods:
Forty cases with pathologically proven colorectal carcinoma were divided into laparoscopic group (n=20) and open surgical group (n=20). Perioperative alterations of peripheral blood IL-6, IL-8, TNF-alpha, CRP, sICAM-1 and WBC CD11b were compared between the two groups. TNF-alpha, IL- 6, IL- 8 and sICAM-1 were determined by ELISA, CRP by scattered radiation turbidity comparison and WBC CD11b by flow cytometry with monoclonal antibody PS- CD11b, M2Ab.
Results:
The postoperative cytokine levels of TNF-alpha, IL-6 and IL-8 in open surgery group were significantly higher than those in laparoscopic group (P< 0.05). Dynamic level of sICAM-1 at 6 and 24 hours after operation in open surgery group were significantly higher than those in laparoscopic group. Peripheral WBC CD11b decreased to the lowest level at 6 hours after operation in open surgery group,significantly lower than that in laparoscopic group (P< 0.05).
Conclusion:
Laparoscopic surgery for colorectal carcinoma exerts less effects on patients than traditional open surgery, and can maintain patients defense function,therefore it is less invasive.
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