luminal B型晚期乳腺癌临床病理特征及预后分析

摘要

目的:探讨luminal B型晚期乳腺癌患者的临床病理特征及预后因素.方法:收集2008年6月至2013年6月天津医科大学肿瘤医院收治的206例luminal B型晚期乳腺癌患者的临床资料,回顾性分析其临床病理特征及影响预后的因素.结果:206例患者中HER-2阳性型54例(26.2%),HER-2阴性型152例(73.8%).其中HER-2阳性型患者中Ki-67>30%为57.4%(31/54),较HER-2阴性型的55.9%(85/152)高,差异具有统计学意义(P<0.01);HER-2阳性型患者中无病生存期(disease free survival,DFS)<36个月为79.6%(43/54),较HER-2阴性型的65.1%(99/152)高,差异具有统计学意义(P<0.05).206例患者的中位生存期为25(2.1~85.0)个月,是否合并内脏转移、一线解救化疗疗效、是否行解救内分泌治疗是luminal B型晚期乳腺癌患者的独立预后因素(P<0.05).结论:luminal B型晚期乳腺癌患者中,HER-2阳性型中的Ki-67指数比HER-2阴性型更高,且更易在3年内发生复发、转移.合并内脏转移、一线解救化疗时病情进展、未行解救内分泌治疗是影响luminal B型晚期乳腺癌患者不良预后的独立因素.%Objective:To analyze the clinicopathological features and prognostic factors of advanced luminal B-like breast cancer. Meth-ods:The clinicopathological features and prognostic factors of 206 patients with advanced luminal B-like breast cancer treated in our hospital between June 2008 and June 2013 were retrospectively analyzed. Results:Among 206 cases, human epidermal growth factor receptor 2 (HER2) positive subtype was found in 54 cases (26.2%), whereas the negative subtype was found in 152 cases (73.8%). The proportion of Ki-67 >30% in HER-2 positive subtype was significantly higher (57.4%; 31/54) than that in HER-2 negative subtype (55.9%; 85/152; P<0.01). The percentage of disease-free survival <36 months in HER-2 positive subtype was dramatically higher (79.6%;43/54) than that in HER-2 negative subtype (65.1%;99/152;P<0.05). The median overall survival of metastasis was 25 (2.1-85.0) months. Multivariate analysis revealed that visceral metastases, first-line salvage chemotherapeutic effect, and palliative endo-crine therapy were the independent predictors of survival in advanced luminal B-like breast cancer (P<0.05). Conclusion:Among pa-tients with advanced luminal B-like breast cancer, HER-2 positive subtype was more commonly diagnosed with higher Ki-67 index, quicker and easier recurrence, and metastasis within three years than HER-2 negative subtype. Visceral metastases, poor effect of first-line salvage chemotherapy, and not receiving palliative endocrine therapy were independent factors of poor prognosis for the survival of advanced luminal B-like breast cancer.