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中华临床医师杂志(电子版) ›› 2018, Vol. 12 ›› Issue (09) : 483 -487. doi: 10.3877/cma.j.issn.1674-0785.2018.09.001

所属专题: 文献

临床研究

系统免疫炎症指数对于肾透明细胞癌患者术后预后的意义
余霄腾1, 张崔建1, 彭鼎1, 林榕城1, 唐琦1, 杨恺惟1, 张争1, 何志嵩1, 李学松1,(), 周利群1,()   
  1. 1. 100034 北京大学第一医院泌尿外科,北京大学泌尿外科研究所,国家泌尿男生殖系研究肿瘤中心
  • 收稿日期:2018-04-08 出版日期:2018-05-01
  • 通信作者: 李学松, 周利群

Prognostic significance of systemic immune-inflammation index in patients with clear cell renal cell carcinoma after nephrectomy

Xiaoteng Yu1, Cuijian Zhang1, Ding Peng1, Rongcheng Lin1, Qi Tang1, Kaiwei Yang1, Zheng Zhang1, Zhisong He1, Xuesong Li1,(), Liqun Zhou1,()   

  1. 1. Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing 100034, China
  • Received:2018-04-08 Published:2018-05-01
  • Corresponding author: Xuesong Li, Liqun Zhou
  • About author:
    Corresponding author: Li Xuesong, Email:
    Zhou Liqun, Email:
引用本文:

余霄腾, 张崔建, 彭鼎, 林榕城, 唐琦, 杨恺惟, 张争, 何志嵩, 李学松, 周利群. 系统免疫炎症指数对于肾透明细胞癌患者术后预后的意义[J]. 中华临床医师杂志(电子版), 2018, 12(09): 483-487.

Xiaoteng Yu, Cuijian Zhang, Ding Peng, Rongcheng Lin, Qi Tang, Kaiwei Yang, Zheng Zhang, Zhisong He, Xuesong Li, Liqun Zhou. Prognostic significance of systemic immune-inflammation index in patients with clear cell renal cell carcinoma after nephrectomy[J]. Chinese Journal of Clinicians(Electronic Edition), 2018, 12(09): 483-487.

目的

探讨系统免疫炎症指数(SII)与接受肾根治性切除术的肾透明细胞癌患者预后的关系。

方法

回顾性分析2001年1月至2010年12月于北京大学第一医院泌尿外科接受肾根治性切除术的1228例肾透明细胞癌患者的临床病理资料,选取患者术前1周内最近一次的血常规结果。应用ROC曲线测定SII的敏感度和特异度,并根据最大约登指数确定SII的最佳界值。主要随访终点为肿瘤特异性生存期(CSS)。采用Kaplan-Meier生存分析及Cox回归分析探讨影响患者CSS的因素。

结果

根据ROC曲线及最大约登指数确定SII界值为602.66,并将所有患者分为高SII组(SII>602.66)和低SII组(SII<602.66)。与高SII相关的因素包括:高龄、高ASA评分、高G分级、高T分期、淋巴结转移、远处转移、肉瘤样分化、肿瘤坏死、淋巴微血管浸润、贫血、高NLR值、高PLR值。1228例患者的中位随访时间为69.0个月(IQR 45.0~74.0),其中122例(9.9%)患者在末次随访时因肿瘤死亡,患者的5年肿瘤特异性生存率为90.72%。Kaplan-Meier单因素分析结果显示:高SII值、高G分级、高T分期、淋巴结转移、远处转移、肉瘤样分化、肿瘤坏死、淋巴微血管浸润、贫血、高NLR值及高PLR值是影响患者CSS的危险因素。Cox多因素回归分析提示,高G分级(HR=2.115,95%CI 1.378-3.246,P=0.001)、高T分期(HR=3.591,95%CI 2.278~5.661,P<0.001)、淋巴结转移(HR=2.169,95%CI 1.239-3.800,P=0.007)、远处转移(HR=5.590,95%CI 3.636-8.595,P<0.001)、高SII值(HR=1.788, 95%CI 1.212-2.637,P=0.003)为影响患者CSS的独立危险因素。

结论

SII升高是肾透明细胞癌患者肾根治性切除术后CSS缩短的独立危险因素。

Objective

To investigate the prognostic value of systemic immune-inflammation index (SII) in patients with clear cell renal cell carcinoma after nephrectomy.

Methods

Clinicopathologic data of 1228 patients with clear cell renal cell carcinoma who underwent radical nephrectomy at Peking University First Hospital between January 2001 and December 2010 were retrospectively analyzed. Hematological features were collected within one week before surgery. Receiver operating characteristic (ROC) curve was generated to explore the sensitivity and specificity of SII, and the maximum Youden index was used to determine the optimal cut-off value of SII. The primary endpoint was cancer specific survival (CSS). Kaplan-Meier survival analysis and Cox proportional regression were performed to explore the prognostic factors of CSS.

Results

According to the ROC curve and Youden index, the optimal cut-off value of SII was 602.66. Based on this cutoff value, the patients were divided into either a high (SII≥602.66) or a low SII group (SII<602.66). Clinicopathologic characteristics associated with higher SII included older age, higher American Society of Anesthesiologists score, higher grade, higher T stage, lymph node metastasis, distant metastasis, tumor with sarcomatoid differentiation, tumor necrosis, lymphovascular invasion, anemia, higher neutrophil to lymphocyte ratio, and higher platelet to lymphocyte ratio. The median follow-up time of the 1228 patients was 69.0 months (IQR 45.0-74.0), and 122 (9.9%) patients died of tumor at last follow-up. The five year cancer specific survival rate of the 1228 patients was 90.72%. According to the results of univariate Kaplan-Meier survival analysis and log-rank test, higher SII value, higher grade, higher T stage, lymph node metastasis, distant metastasis, tumor with sarcomatoid differentiation, tumor necrosis, lymphovascular invasion, anemia, higher neutrophil to lymphocyte ratio, and higher platelet to lymphocyte ratio were all unfavorable factors for CSS. Multivariate Cox proportional regression indicated that higher grade (HR=2.115, 95%CI 1.378-3.246, P=0.001), higher T stage (HR=3.591, 95%CI 2.278-5.661, P<0.001), lymph node metastasis (HR=2.169, 95%CI 1.239-3.800, P=0.007), distant metastasis (HR=5.590, 95%CI 3.636-8.595, P<0.001), higher SII value (HR=1.788, 95%CI 1.212-2.637, P=0.003) were all independent prognostic factors for CSS.

Conclusion

Higher SII is associated with worse CSS in patients with clear cell renal cell carcinoma after nephrectomy.

图1 分析系统免疫炎症指数最佳界值的ROC曲线
表1 低SII组与高SII组间临床病理特征差异[例(%)]
图2 高系统免疫炎症指数组与低系统免疫炎症指数组患者肿瘤特异性生存期的Kaplan-Meier生存曲线
表2 肿瘤特异性生存期的单因素及多因素预后分析
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