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中华普通外科学文献(电子版) ›› 2021, Vol. 15 ›› Issue (04) : 273 -277. doi: 10.3877/cma.j.issn.1674-0793.2021.04.007

论著

预后营养指数对结直肠癌同时性肝转移患者预后评估的价值
傅宇翔1, 潘凯1, 夏利刚1, 钟克力1, 廖桂祥1,(), 朱畅1, 李方1   
  1. 1. 518020 深圳市人民医院(暨南大学第二临床医学院,南方科技大学附属第一医院) 胃肠外科
  • 收稿日期:2021-03-11 出版日期:2021-08-03
  • 通信作者: 廖桂祥
  • 基金资助:
    深圳市卫计委博士创新项目(SZBC2017024); 深圳市科技创新委员会基础研究项目(JCYJ20170 307095828424)

Prognostic value of prognostic nutritional index in colorectal cancer patients with simultaneous liver metastasis

Yuxiang Fu1, Kai Pan1, Ligang Xia1, Keli Zhong1, Guixiang Liao1,(), Chang Zhu1, Fang Li1   

  1. 1. Department of Gastrointestinal Surgery, Shenzhen People’s Hospital (the Second Clinical Medical College of Jinan University, the First Affiliated Hospital of Southern University of Science and Technology), Shenzhen 518020, China
  • Received:2021-03-11 Published:2021-08-03
  • Corresponding author: Guixiang Liao
引用本文:

傅宇翔, 潘凯, 夏利刚, 钟克力, 廖桂祥, 朱畅, 李方. 预后营养指数对结直肠癌同时性肝转移患者预后评估的价值[J]. 中华普通外科学文献(电子版), 2021, 15(04): 273-277.

Yuxiang Fu, Kai Pan, Ligang Xia, Keli Zhong, Guixiang Liao, Chang Zhu, Fang Li. Prognostic value of prognostic nutritional index in colorectal cancer patients with simultaneous liver metastasis[J]. Chinese Archives of General Surgery(Electronic Edition), 2021, 15(04): 273-277.

目的

探讨治疗前预后营养指数(PNI)与结直肠癌同时性肝转移患者预后的关系。

方法

回顾性分析2015年1月至2017年1月深圳市人民医院初诊初治的结直肠癌同时性肝转移患者83例临床资料,记录患者5年随访生存结局,利用ROC曲线选取约登指数最大值时的PNI值为截断值,分为高PNI组和低PNI组。采用Kaplan-Meier法进行生存分析,Cox比例风险模型筛选影响患者预后的因素。

结果

83例中位随访时间13(9~25)个月,44例死亡。ROC曲线选取PNI值为50.4,约登指数为1.31,分为低PNI组44例(PNI<50.4,53.01%),高PNI组39例(PNI≥50.4,46.99%)。低PNI组的OS、PFS较高PNI组明显缩短(P=0.005、0.018)。PNI<50.4、未行根治手术、肝多发转移、年龄≥60岁是OS的独立预后不良因素,PNI<50.4、未行根治手术是PFS独立预后不良因素(均P<0.05)。

结论

治疗前PNI是结直肠癌同时性肝转移患者OS和PFS的独立预测因子。

Objective

To investigate the relationship between preoperative prognostic nutritional index (PNI) and prognosis of colorectal cancer (CRC) patients with simultaneous liver metastasis.

Methods

This retrospective cohort study included 83 patients of newly diagnosed CRC with simultaneous liver metastasis in Shenzhen People’s Hospital from January 2015 to January 2017. According to 5-year follow-up survival outcomes, the receiver operating characteristic curve (ROC) was used to determine the cut-off value of PNI, and the patients were divided into high PNI group and low PNI group. Kaplan-Meier method was used to analyze the related factors and survival. Cox proportional hazards model was used to screen the prognostic factors.

Results

The median follow-up time was 13 months (9 to 25 months), and 44 cases died. The Youden index was 1.31 and the PNI value was 50.4. According to PNI, 44 cases (53.01%) were divided into low PNI group and 39 cases (46.99%) into high PNI group. The overall survival (OS) and progression free survival (PFS) of low PNI group were significantly shorter than those of high PNI group (P=0.005, 0.018, respectively). PNI<50.4, without radical operation, multiple liver metastase, and age≥60 years old were independent prognostic factors of OS. PNI<50.4 and without radical operation were independent prognostic factors of PFS (both P<0.05).

Conclusion

Preoperative PNI is an independent predictor of OS and PFS in CRC patients with simultaneous liver metastasis.

表1 83例结直肠癌同时性肝转移患者的临床资料特征与PNI的关系
特征 总数(83例) 低PNI组(44例) 高PNI组(39例) 统计值 P
年龄(岁)a 62.54 ±14.50 66.75 ±13.36 58.00 ±14.49 8.750 0.005
性别          
  55(66.26) 25(56.82) 30(76.92) 2.893 0.089
  28(33.73) 19(43.18) 9(23.08)    
体质指数(kg/m2) a 21.45±1.85 20.18±1.06 22.89±1.44 -2.712 <0.001
吸烟       1.757 0.185
  29(34.94) 12(27.27) 17(43.59)    
  54(65.06) 32(72.72) 22(56.41)    
饮酒       1.274 0.259
  14(16.87) 5(11.36) 9(23.08)    
  69(83.13) 39(88.64) 30(76.92)    
合并疾病       1.315 0.251
  47(56.63) 28(63.64) 19(48.72)    
  36(43.37) 16(36.36) 20(51.28)    
分化程度       0.677 0.410
  高/中 64(77.11) 36(81.82) 28(71.79)    
  19(22.89) 8(18.18) 11(28.21)    
肿瘤位置       1.744 0.187
  直肠 27(32.53) 11(25.00) 16(41.03)    
  结肠 56(67.47) 33(75.00) 23(58.97)    
肝转移       2.450 0.118
  单发 32(38.55) 13(29.55) 19(48.72)    
  多发 51(61.45) 31(70.45) 20(51.28)    
肝外转移       0.008 0.931
  12(14.45) 7(15.91) 5(12.82)    
  71(85.55) 37(84.09) 34(87.18)    
肿瘤T分期       0.044 0.834
  1~3 51(61.45) 28(63.64) 23(58.97)    
  4 32(38.55) 16(36.36) 16(41.03)    
肿瘤N分期       0.808 0.369
  0 9(10.84) 3(6.81) 6(15.38)    
  1~2 74(89.16) 41(93.19) 33(84.62)    
癌胚抗原(U/ml)       1.169 0.280
  <5 20(24.09) 8(18.18) 12(30.77)    
  ≥5 63(75.91) 36(81.82) 27(69.23)    
CA19-9(U/ml)       <0.001 1.000
  <37 43(51.81) 23(53.49) 20(51.28)    
  ≥37 40(48.19) 21(46.51) 19(48.72)    
根治手术       2.956 0.086
  46(55.42) 20(45.45) 26(66.67)    
  37(44.58) 24(54.55) 13(33.33)    
转化后根治手术       0.026 0.872
  6(42.86) 2(40.00) 4(44.44)    
  8(57.14) 3(60.00) 5(55.56)    
图1 利用ROC选取约登指数最大值时的PNI值为截断值
图2 不同PNI的结直肠癌同时性肝转移患者总生存Kaplan-Meier曲线
图3 不同PNI的结直肠癌同时性肝转移患者的无进展生存Kaplan-Meier曲线
表2 使用Cox比例风险模型进行结直肠癌同时性肝转移患者预后分析
临床特征 OS单因素分析 OS多因素分析 PFS单因素分析 PFS多因素分析
HR P HR P HR P HR P
PNI(≥50.4 vs <50.4) 0.425(0.224~0.791) 0.007 0.452(0.235~0.868) 0.017 0.457(0.265~0.789) 0.005 0.526(0.287~0.966) 0.038
年龄(≥60岁vs <60岁) 2.236(1.148~4.355) 0.015 2.933(1.468~5.853) 0.002 1.120(0.652~1.925) 0.681    
性别(女vs男) 0.845(0.440~1.626) 0.614     1.028(0.593~1.782) 0.922    
吸烟(是vs否) 1.371(0.756~2.486) 0.297     1.038(0.609~1.768) 0.892    
饮酒(是vs否) 1.320(0.662~2.631) 0.429     0.986(0.494~1.971) 0.986    
合并症(是vs否) 1.596(0.861~2.957) 0.134     1.637(0.968~2.768) 0.064    
体质指数(≥21 kg/m2 vs <21 kg/m2) 0.630(0.336~1.179) 0.145     0.639(0.38~1.108) 0.120    
治疗(根治手术vs姑息治疗) 0.503(0.262~0.965) 0.034 1.540(1.060~2.220) 0.031 0.085(0.03 0.000 0.098(0.040~0.238) <0.001
分化程度(高/中vs低) 1.222(0.823~1.812) 0.321     1.094(0.795~1.515) 0.593    
肝转移(多发vs单发) 2.421(1.253~4.677) 0.007 2.565(1.301~5.054) 0.007 0.911(0.539~1.538) 0.727    
T分期(1~3 vs 4) 0.850(0.452~1.597) 0.613     1.081(0.631~1.852) 0.776    
N分期(0 vs 1~2) 0.442(0.183~1.065) 0.061     0.508(0.213~1.208) 0.118    
原发部位(直肠vs结肠) 0.870(0.474~1.599) 0.654     1.097(0.626~1.923) 0.746    
癌胚抗原(<5 U/ml vs ≥5 U/ml ) 0.802(0.400~1.609) 0.533     1.417(0.760~2.644) 0.271    
CA19-9(<37 U/ml vs ≥37 U/ml) 0.806(0.445~1.462) 0.477     0.805(0.479~1.350) 0.410    
肝外转移(是vs否) 1.071(0.706~1.626) 0.746     1.636(1.078~2.484) 0.018 1.232(0.776~1.957) 0.376
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