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  • Title: [Effect of laparoscopic radical operation on systemic immunity in patients with colorectal cancer].
    Author: Zhao G, Xiao G, Huang MX, Long HK.
    Journal: Zhonghua Wei Chang Wai Ke Za Zhi; 2005 Sep; 8(5):407-9. PubMed ID: 16224653.
    Abstract:
    OBJECTIVE: To compare the effect of laparoscopic radical operation and open operation on systemic immunity in patients with colorectal cancer. METHODS: Sixty patients with colorectal cancer were randomly divided into laparoscopic and open operation groups from March 2004 to December 2004, each group had 30 cases. CRP, IgA, IgM, IgG, CD3 (+) cells, CD4 (+) cells, CD8 (+) cells, NK cells, CD4 (+) CD5RA (+) cells, CD4 (+) CD45RO (+) cells and lymphocytes in peripheral blood were counted and compared on the 1st day before operation, 3rd and 7th day after operation. RESULTS: The two groups were comparable as for age, tumor location and stages. In open operation group, lymphocyte counts were (1.09+/- 0.29) x 10(9)/L, CD4 (+) cell (0.54 +/- 0.14) x 10(9)/L, CD8 (+) cell (0.31 +/- 0.08) x 10(9)/L, CD4 (+) CD45RO (+) (61.1+/- 8.9)%, and IgM level (136.9+/- 52.8) IU/ml, IgG (115.2 +/- 45.7) IU/ml on the 3rd day after operation, CD8 (+) cell counts were (0.32 +/- 0.09) x 10 (9)/L, CD4 (+) CD45RO (+) cell (63.2 +/- 9.1)% on the 7th day after operation, were all significantly lower than those on the 1st day before operation respectively(P< 0.05, P< 0.01). In laparoscopic operation group, the decreases of such parameters except CD4 (+) CD45RO (+) cell (62.7 +/- 12.5)% were not obvious on the 3rd day after operation. There were significant difference in lymphocyte counts (1.29 +/- 0.37) x 10( 9 )/L, IgM (164.5 +/- 48.2) IU/ml and CD8 (+) cell counts (0.38 +/- 0.09) x 10 (9) /L on the 3rd day after operation between two groups (P< 0.05). CONCLUSION: Compared with open radical operation, laparoscopic radical operation has predominance in protecting systemic immunity to treat colorectal carcinoma.
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