OBJECTIVES: To determine the role of lymph-node (LN) dissection in patients undergoing surgery for upper urinary tract (UUT) cancer. PATIENTS AND METHODS: We reviewed the clinicopathological data from 312 patients with UUT cancer treated predominantly by nephroureterectomy. The relationship between clinical characteristics and cancer-specific survival (CSS) was analysed, focusing on node-related information. RESULTS: In all, 166 patients had LN dissection while 146 did not (pNx). Multivariate analysis showed that T stage, grade and pN status were significant variables for CSS. The difference in survival between the pN0 and pNx groups remained significant in a multivariate analysis. The median (range) number of LNs removed was 6 (1-65). There was no significant difference in CSS between the 72 patients with fewer than six LNs removed and the 78 with six or more removed. CONCLUSIONS: LN dissection is important for postoperative stratification of patients with UUT cancer because node-positive disease was one of the variables with a significant adverse effect on survival. In addition, the significant difference in survival between the pN0 and pNx groups might indicate a therapeutic benefit of LN dissection, although removing more LNs did not uniformly increase the probability of CSS.
OBJECTIVES: To determine the role of lymph-node (LN) dissection in patients undergoing surgery for upper urinary tract (UUT) cancer. PATIENTS AND METHODS: We reviewed the clinicopathological data from 312 patients with UUT cancer treated predominantly by nephroureterectomy. The relationship between clinical characteristics and cancer-specific survival (CSS) was analysed, focusing on node-related information. RESULTS: In all, 166 patients had LN dissection while 146 did not (pNx). Multivariate analysis showed that T stage, grade and pN status were significant variables for CSS. The difference in survival between the pN0 and pNx groups remained significant in a multivariate analysis. The median (range) number of LNs removed was 6 (1-65). There was no significant difference in CSS between the 72 patients with fewer than six LNs removed and the 78 with six or more removed. CONCLUSIONS: LN dissection is important for postoperative stratification of patients with UUT cancer because node-positive disease was one of the variables with a significant adverse effect on survival. In addition, the significant difference in survival between the pN0 and pNx groups might indicate a therapeutic benefit of LN dissection, although removing more LNs did not uniformly increase the probability of CSS.
Authors: J F Wu; R C Lin; Y C Lin; W H Cai; Q G Zhu; D Fang; G Y Xiong; L Zhang; L Q Zhou; L F Ye; X S Li Journal: Beijing Da Xue Xue Bao Yi Xue Ban Date: 2019-08-18
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