侯志刚 朱福义
[摘要] 目的 探讨乳腺癌新辅助化疗后前哨淋巴结活检(SLNB)的临床价值。 方法 选取我院普外科2016年1月~2017年10月住院治疗的50例Ⅱ、Ⅲ期乳腺癌患者为研究对象。先行2~4个周期新辅助化疗(EC方案或TEC方案),术前用亚甲兰皮下注射法标记前哨淋巴结,术中寻找标记的前哨淋巴结作活检,常规行腋窝淋巴结清扫,术后对所有淋巴结作常规病理检验。 结果 前哨淋巴结活检检出率92.00%(46/50)、假阴性率6.90%(2/29)、准确率91.30%(42/46)、灵敏度93.10%(27/29)。肿瘤对化疗反应为CR(完全缓解)、PR(部分缓解)和SD (稳定)的SLN检出率分别为100.00%、92.86%和71.43%(P<0.05)。肿瘤直径、肿瘤位置、临床N分期这几个因素和前哨淋巴结的检出率无相关性(P>0.05)。 结论 相较于对早期乳腺癌行SLNB,接受新辅助化疗后的乳腺癌患者进行SLNB可以得到与之类似的效果。
[关键词] 乳腺癌;新辅助化疗;前哨淋巴结;检出率;假阴性率
[中图分类号] R737.9 [文献标识码] B [文章编号] 1673-9701(2018)16-0008-04
[Abstract] Objective To investigate the clinical value of sentinel lymph node biopsy(SLNB) after neoadjuvant chemotherapy in breast cancer. Methods 50 patients with stage Ⅱ and stage Ⅲ breast cancer who were hospitalized in our general surgery department from January 2016 to October 2017 were selected as study subjects. Two to four cycles of neoadjuvant chemotherapy(EC regimen or TEC regimen) are first performed. Sentinel lymph nodes were labeled with subcutaneous injections of methylene blue before surgery. Sentinel lymph nodes labeled were found for biopsy during the operation. Routine axillary lymph node dissection was performed. Lymph nodes were routinely pathologically examined after surgery. Results The detection rate of sentinel lymph node biopsy was 92.00%(46/50), with the false negative rate of 6.90%(2/29), the accuracy rate of 91.30%(42/46) and the sensitivity of 93.10%(27/29). The detection rate of SLN for tumor response including CR(complete response), PR(partial response), and SD(stabilization) to chemotherapy was 100.00%, 92.86%, and 71.43%, respectively(P<0.05). There was no correlation between the tumor diameter, tumor location, clinical N stage, and the detection rate of sentinel lymph nodes(P>0.05). Conclusion Compared with SLNB for early breast cancer, SLNB for breast cancer patients receiving neoadjuvant chemotherapy can achieve similar results.
[Key words] Breast cancer; Neoadjuvant chemotherapy; Sentinel lymph node; Detection rate; False negative rate
現今乳腺癌是一种给女性健康带来严重威胁并且发病率越来越高的恶性肿瘤,乳腺癌的手术、化疗等综合治疗理念已经发生了巨大的变化。乳腺癌新辅助化疗(neoadjuvant chemotherapy,NAC)主要的优点有减小肿瘤体积,使不可手术局部晚期乳腺癌的手术切除率提高、提高了保乳成功率等。NAC也可以作为活体的药敏试验,找到能判断预后并评估治疗敏感性的生物标记物[1],从而使得一些达到病理性完全缓解(pathological complete response,PCR)的患者从中取得生存获益,所以NAC早已经成为乳腺癌不可或缺的、重要的治疗方式。
前哨淋巴结(sentinel lymph node,SLN)是肿瘤最早发生淋巴转移的第一站淋巴结。Krag DN等[2]在1993年首次把前哨淋巴结的概念引入到乳腺癌的外科治疗手段中。……