title: [Evaluation of the minimal invasiveness of laparoscopic operation for colorectal carcinoma].
abstract: 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).
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China. tiandayu_ 2000@163.com
authors.forename: Xiang
authors.initials: X
authors.lastname: Hu
authors.forename: Hai-zhi
authors.initials: HZ
authors.lastname: Li
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Wei-de
authors.initials: WD
authors.lastname: An
authors.forename: Cai-jia
authors.initials: CJ
authors.lastname: Zhang
mesh_terms: D000368:Aged; D002097:C-Reactive Protein / Q000378:metabolism; D015179:Colorectal Neoplasms / Q000097:blood / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D018799:Intercellular Adhesion Molecule-1 / Q000097:blood; D015850:Interleukin-6 / Q000097:blood; D016209:Interleukin-8 / Q000097:blood; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D014409:Tumor Necrosis Factor-alpha / Q000097:blood
chemical_list: D015850:Interleukin-6; D016209:Interleukin-8; D014409:Tumor Necrosis Factor-alpha; D018799:Intercellular Adhesion Molecule-1; D002097:C-Reactive Protein