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转移性乳腺癌临床病理特征及预后分析

DOI: 10.3781/j.issn.1000-7431.2012.08.Copyright© 2012 by TUMOR转移性乳腺癌临床病理特征及预后分析于 倩,佟仲生, 汪 旭,史业辉,何丽宏,刘晓东天津医科大学附属肿瘤医院乳腺内科,乳腺癌防治教育部重点实验室,天津市肿瘤防治重点实验室,天津 300060[摘要] 目的:分析单一机构转移性乳腺癌(metastatic breast cancer ,MBC )患者的临床病理特征及生存情况,并探讨影响预后的独立因素。

方法:研究对象为2004年1月—2006年12月乳腺癌根治术后出现复发和转移并具备完整的病历和随访资料的280例MBC 患者,对其临床病理特征、复发和转移情况以及生存情况进行回顾性分析。

单因素生存分析采用Kaplan-Meier 法,多因素预后分析采用COX 比例风险模型。

结果:本组患者中位无进展生存时间(progression-free survival ,PFS )为9个月(1~93个月),中位总生存时间(overall survival ,OS )为45个月(2~99个月),1、3和5年生存率分别为91.1%、59.5%和36.9%。

单因素分析显示,病理类型、淋巴血管侵犯、激素受体(hormonal receptor ,HR )状态、分子分型、无病生存时间(disease-free survival ,DFS )、内脏转移、首次转移部位数目、肝转移、脑转移、解救内分泌治疗和解救放疗与OS 相关(P <0.05)。

多因素分析显示,淋巴血管侵犯、分子分型、内脏转移和肝转移是MBC 患者预后的独立影响因素(P <0.05)。

结论:淋巴血管侵犯、三阴型乳腺癌、内脏转移和肝转移是MBC 患者不良预后的独立影响因素,对MBC 患者的预后判断及个体化治疗具有重要的临床指导意义。

[关键词] 乳腺肿瘤;肿瘤转移;预后[中图分类号] R737.9[文献标志码] A[文章编号] 1000-7431 (2012) 08-0609-06Analysis of clinicopathological features and prognostic factors of patients with metastatic breast cancerYU Qian, TONG Zhong-sheng, WANG Xu, SHI Ye-hui, HE Li-hong, LIU Xiao-dongDepartment of Breast Medical Oncology, Tianjin Medical University Cancer Institute and Hospital; Ministry of Education Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China[ABSTRACT] Objective: To analyze the clinicopathological features and survival for patients with MBC (metastatic breast cancer) at a single institution, and to establish prognostic factors for MBC. Methods: A total of 280 female patients with MBC were recruited between January 2004 and December 2006 at a single institution previously receiving complete anticancer treatment and with accurate and complete clinical and follow-up information. The clinicopathological characteristics, the patterns of recurrence and metastasis and the survival were retrospectively analyzed. The univariate and multivariate analysesof prognosis were performed by Kaplan-Meier method and COX proportional-hazard regression model,respectively. Results: The median PFS (progression-free survival) was 9 months (1-93 months), the median OS (overall survival) after recurrence was 45 months (2-99 months), and the one-, three- and five-year survival rates were 91.1%, 59.5% and 36.9%, respectively. Univariate analysis showed that pathological type, lymphovascular invasion, hormone receptor status, molecular subtype, DFS (disease-free survival), visceral metastasis, the number of fi rst metastatic sites, liver metastasis, brain metastasis, palliative endocrine therapy and palliative radiotherapy had significant impacts on the OS (P < 0.05).In the multivariate analysis, lymphovascular invasion, molecular subtype, visceral metastasis, and liver metastasis were independent prognostic factors (P < 0.05). Conclusion: The factors of lymphovascularinvasion, triple-negative breast cancer, visceral metastasis and liver metastasis are independent[基金项目] 天津市应用基础及前沿技术研究计划 (编号:10JCYBJC11500)Correspondence to: TONG Zhong-sheng(佟仲生) E-mail: tonghang@ Received 2012-04-19 Accepted 2012-06-12008肿瘤2012年8月第32卷第8期 TUMOR Vol. 32, August 2012 609临床研究·Clinical Researchpredictors of poor prognosis. These fundamental observations may assist physicians in evaluating the survival potential and determining the appropriate therapeutic decision for patients with MBC.[KEY WORDS] Breast neoplasms; Neoplasm metastasis; Prognosis[TUMOR, 2012, 32 (08): 609-614]乳腺癌是女性最常见的恶性肿瘤之一,乳腺癌术后患者中30%~50%出现局部复发或远处转移。

转移性乳腺癌(metastatic breast cancer,MBC)患者5年总生存率为21%~40%,长期生存十分罕见。

本课题组回顾性分析280例MBC 患者的临床病理特征及生存情况,探讨其复发和转移的特点以及预后影响因素,以期指导临床个体化治疗,从而延长MBC患者的生存时间。

1 资料与方法1.1 研究对象 2004年1月—2006年12月在天津医科大学附属肿瘤医院乳腺内科确诊的乳腺癌根治术后出现复发和转移的280例女性MBC患者,均具备完整的病历和随访资料。

病例选择标准:(1)原发乳腺肿瘤均经术后病理组织学确诊,肿瘤转移部位经B型超声、CT、MRI、放射性核素扫描或正电子发射计算机断层扫描(positron emission tomography,PET)-CT证实;(2)具备完整的临床资料,包括一般情况、手术时间、病理诊断、肿瘤分期、治疗方式和生存情况等;(3)具备完整的随访资料,包括首次复发和转移的时间、疾病进展时间和死亡时间。

1.2 分子分型 雌激素受体(estrogen receptor,ER)或孕激素受体(progesterone receptor,PR)阳性即定义为激素受体(hormonal receptor,HR)阳性。

免疫组织化学检测显示人表皮生长因子受体2(human epidermal growth factor receptor 2,HER2)(+++)或荧光原位杂交(fluorescence in situ hybridization,FISH)阳性则判定为阳性,若无FISH进一步验证的HER2(++)也判定为阳性。

根据乳腺癌受体的表达情况,将乳腺癌分成4种分子分型:luminal A型[ER(+)和(或)PR(+)且HER2(-)]、luminal B型[ER(+)和(或)PR(+)且HER2(+)]、HER2过表达型[ER(-)、PR(-)、HER2(+)]和三阴型[ER(-)、PR(-)、HER2(-)]。

1.3 首发转移部位及数目 转移部位的数目按受累器官数计算。

同一器官的多发转移视为一个部位的转移。

1.4 随访 采用门诊定期复查、信访和电话随访相结合的方式,随访起始于患者术后首次出现复发或转移的日期,直至患者死亡或至随访截止日2011年12月31日。

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