Early immune outcome of retroperitoneal laparoscopic radical nephrectomy for localized renal cell carcinoma: a prospective, randomized study
We evaluated differences in cytokine responses and T-lymphocyte subsets following retroperitoneal laparoscopic and conventional open radical nephrectomies for localized renal cell carcinoma (RCC). A total of 62 patients with T(1)N(0)M(0) staged RCC were randomized to either retro-laparoscopic (n = 3...
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Published in | Canadian Urological Association journal Vol. 6; no. 6; p. E242 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Canada
Canadian Urological Association
01.12.2012
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Subjects | |
Online Access | Get full text |
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Summary: | We evaluated differences in cytokine responses and T-lymphocyte subsets following retroperitoneal laparoscopic and conventional open radical nephrectomies for localized renal cell carcinoma (RCC).
A total of 62 patients with T(1)N(0)M(0) staged RCC were randomized to either retro-laparoscopic (n = 31) or open (n = 31) radical nephrectomy. Plasma levels of interleukin-1β (IL-1β), IL-6, and tumour necrosis factor-alpha (TNF-α) were measured separately by enzyme linked immunosorbent assay (ELISA) preoperatively and on postoperative days 1 and 5. Levels of CD3(+), CD4(+) and CD8(+) as well as the CD4(+):CD8(+) ratio were acquired by flow cytometry at the same time points.
Levels of IL-1β, IL-6 and TNF-α increased significantly compared to preoperative values in both groups (p < 0.05) on postoperative day 1, and all the parameters in the open group were significantly higher than those in the retro-laparoscopy group (p < 0.05). On postoperative day 1, the levels of CD3(+) and CD4(+) and the CD4(+):CD8(+) ratio decreased markedly compared to preoperative values for both groups (p < 0.05). Elevations of the CD4(+):CD8(+) ratio in the retro-laparoscopy group (p < 0.05) and the CD8(+) level in the open group (p < 0.05) were observed when compared with the other group. On postoperative day 5, the levels of CD3(+) and CD4(+) and the CD4(+):CD8(+) ratio in the retro-laparoscopy group, as well as the level of CD8(+) in the open group, returned to about preoperative levels (p < 0.05). Follow-up ranged from 4 to 14 months postoperatively in all 62 patients with a 100% cancer-specific survival rate in both groups.
Retroperitoneal laparoscopic radical nephrectomy is associated with the milder cytokine responses caused by trauma and inflammation and the better preserved distribution of T-lymphocytes. |
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ISSN: | 1911-6470 1920-1214 |
DOI: | 10.5489/cuaj.124 |