实用肿瘤学杂志 ›› 2019, Vol. 33 ›› Issue (5): 431-435.doi: 10.11904/j.issn.1002-3070.2019.05.009

• 临床研究 • 上一篇    下一篇

放疗延迟对乳腺癌不同分子亚型患者预后的影响

师镘茹, 鄂明艳   

  1. 哈尔滨医科大学附属肿瘤医院(哈尔滨 150081)
  • 发布日期:2019-11-05
  • 通讯作者: 鄂明艳,E-mail:278848475@qq.com
  • 作者简介:师镘茹,女,(1989-),硕士,住院医师,从事胸部放疗的研究。

Effect of delayed radiotherapy on the prognosis of patients with different molecular subtypes of breast cancer

SHI Manru, E Mingyan   

  1. Harbin Medical University Cancer Hospital,Harbin 150081,China
  • Published:2019-11-05

摘要: 目的 探讨放疗延迟对乳腺癌不同分子亚型患者预后的影响。方法 收集2007年1月—2012年12月在我院行乳腺癌根治术患者341例,其中Luminal A型149例(对照组83例,放疗延迟组66例),Luminal B型105例(对照组63例,放疗延迟组42例),HER2+型43例(对照组28例,放疗延迟组15例),三阴型患者44例(对照组27例,放疗延迟组17例)分析放疗延迟组与对照组预后是否存在差异。结果 Luminal A型、Luminal B型、HER2+型、三阴性型在对照组和放疗延迟组的局部复发率分别为(4.8% vs. 9.1%,P=0.301),(4.7% vs. 19.0%,P=0.019),(7.1% vs. 33.3%,P=0.027),(11.1% vs. 35.3%,P=0.053);远处转移率分别为(9.6% vs. 10.6%,P=0.845),(11.1% vs. 14.2%.P=0.234),(32.1% vs. 40.0%,P=0.937),(37.0% vs. 41.2%,P=0.784);无瘤生存率分别为(85.5% vs. 80.3%,P=0.395),(84.1% vs. 66.7%,P=0.037),(60.7% vs. 33.3%,P=0.087),(55.5% vs. 23.5%,P=0.037);总生存率分别为(94.0% vs. 90.9%,P=0.539),(84.1% vs. 80.9%,P=0.672),(67.9% vs. 60.0%,P=0.606),(59.2% vs. 41.2%,P=0.242)。Cox回归分析结果显示肿瘤大小(HR=3.156,P=0.043)、淋巴结转移(HR=1.074,P=0.001)、TNM(HR=8.591,P=0.009)和分子亚型(HR=2.092,P<0.001)为乳腺癌患者预后的独立影响因素。结论 Luminal B型及HER2+型患者的局部复发率均因放疗延迟而明显增高,Luminal B型及三阴型的无瘤生存率因放疗延迟而明显降低。肿瘤大小、淋巴结转移、TNM分期和分子亚型是影响患者总生存期的独立危险因素。

关键词: 乳腺癌, 放射治疗, 分子分型

Abstract: Objective The aim of this study was to investigate the effect of delayed radiotherapy on the prognosis of breast cancer patients with different molecular subtypes.Methods A total of 341 patients with radical mastectomy were enrolled in our hospital from January 2007 to December 2012.There were 149 patients with Luminal A type,83 patients in the control group,and 66 patients in the delayed radiotherapy group.There were 105 cases with Luminal B type,63 cases of control group and 42 cases of delayed radiotherapy.There were 43 cases of HER2+,28 cases of control group and 15 cases of delayed radiotherapy.There were 44 patients with triple-negative,27 cases in the control group,and 17 patients in the delayed radiotherapy group.Analyzed the difference in progposis betueen the delayed radiotherapy group and the contrel group.Results The local recurrence rate of Luminal A,Luminal B,HER2+ and triple negative type in the control group and the delayed radiotherapy group were(4.8% vs. 9.1%,P=0.301),(4.7% vs. 19.0%,P=0.019),(7.1% vs. 33.3%,P=0.027),(11.1% vs. 35.3%,P=0.053),respectively;distant metastasis rate:(9.6% vs. 10.6%,P=0.8 45),(11.1% vs. 14.2%,P=0.234),(32.1% vs. 40.0%,P=0.937),(37.0% vs. 41.2%,P=0.784),respectively;tumor-free survival rate:(85.5% vs. 80.3%,P=0.395),(84.1% vs. 66.7%,P=0.037),(60.7% vs. 33.3%,P=0.087),(55.5% vs. 23.5%,P=0.037),respectively;overall survival rate:(94.0% vs. 90.9%,P=0.539),(84.1% vs. 80.9%,P=0.672),(67.9% vs. 60.0%,P=0.606),(59.2% vs. 41.2%,P=0.242),respectively.Cox regression analysis showed that tumor size(HR=3.156,P=0.043),lymph node metastasis(HR=1.074,P=0.001),TNM(HR=8.591,P=0.009)and molecular subtype(HR=2.092,P<0.001)were independent factors influencing prognosis of breast cancer patients.Conclusion The local recurrence rate of Luminal B type and HER2+ is significantly increased due to delayed radiotherapy.The disease-free survival rates of Luminal B type and triple negative type are significantly increased reduced due to delayed radiotherapy.Tumor size,lymph node metastasis,TNM staging and molecular subtypes are independent risk factors for patient survival.

Key words: Breast cancer, Radio therapy, Molecular typing

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