乳腺癌前哨淋巴结定位和活检

目的：难证乳腺癌前哨淋巴结定位和活检技术的可行性和前哨淋巴结的组织状况能否准确预告腋淋巴结的状况。方法：本研究使用专利蓝,对３３例乳腺癌患者进行了术中及术后前哨淋巴结定位和活检术。结果：３０例（９１％）找到前哨淋巴结,前哨淋巴结预告腋淋巴结的准确率为９６．７％,假阴性１例。结论：本研究结果证实,乳腺癌前哨淋巴结定位和活检技术是可行的,前哨淋巴结的组织学特征能够准确反映腑淋巴结的状况。我们相信在将来     

美蓝在乳腺癌前哨淋巴结活检中的临床价值

目的探讨美蓝在乳腺癌前哨淋巴结活检中的临床价值。方法将1%美蓝2ml注入活检腔外上方的皮下及乳腺组织内,然后行Auchincloss仿根治术,依淋巴管走向找到蓝染淋巴结定为SLN,若此时未找到待腋窝清扫结束后,再在标本中寻找,蓝染者为SLN,余为非SLN,分别送病理检查。结果前哨淋巴结检出率为87.9%(95/108),SLN预测腋窝状况的准确率为95.7%(91/95),假阴性率为6.5%(4/62),无假阳性者。未检出者13例,其中4例为假阴性,均属跳跃式转移。前哨淋巴结转移阳性率(34.6%,33/95)和阴性率(65.3%,62/95),与全腋淋巴结转移阳性率(39.8%,43/108)和阴性率(60.2%,65/108)比较,均无显著性差异(P>0.05)。结论美蓝前哨淋巴结活检可以准确预测乳腺癌患者的腋淋巴结状态。     

早期乳腺癌前哨淋巴结活检替代腋窝淋巴结清扫的临床应用研究

目的 对前哨淋巴结活检(sentinel lymph node biopsy,SLNB)替代腋窝淋巴结清扫(axillary lymph node dis-section,ALND)在早期乳腺癌患者中的应用以及安全性研究及探讨.方法 回顾性分析行SLNB和ALND手术的503例早期乳腺癌病例,对患者住院时间、拔管时间及住院费用进行对比,以及对患者上肢并发症、腋窝局部复发及远处转移情况进行随访,随访至2016年06月,中位随访时间为32(6 ～52)个月.结果 在住院时间、拔管时间、住院费用以及上肢并发症方面,SLNB组明显优于ALND组,差异有统计学意义,而在腋窝局部复发及远处转移情况方面两组无统计学意义.结论 在SLN阴性早期乳腺癌中,SLNB与ALND可以取得相同的疗效,而且,SLNB与ALND相比,手术创伤小,麻木疼痛、肩关节活动受限等术后并发症明显减少,且可缩短患者住院时间,减轻患者的经济负担.     

Reliability of Sentinel Lymph Node Biopsy after Neoadjuvant Chemotherapy in Breast Cancer Patients

Purpose

Sentinel lymph node biopsy (SLNB) is an accurate and effective means of axillary nodal staging in early breast cancer. However its indication after neoadjuvant chemotherapy (NAC) is under constant debate. The present study evaluates the reliability of SLNB in assessing axillary nodal status after NAC.

Methods

Data from 281 patients who had received NAC and subsequent SLNB were reviewed. The identification and false negative rates of SLNB were determined and the clinicopathologic factors associated with false negative results were investigated using univariate analysis.

Results

The identification rate of SLNB after NAC was 93.6% and the false negative rate was 10.4%. Hormone receptor status, especially progesterone receptor positivity, was significantly associated with false negative results. The accuracy of intraoperative frozen section examination of sentinel lymph nodes was 91.2%.

Conclusion

The identification rate of SLNB and the accuracy of intraoperative frozen section examination after NAC are comparable to the results without NAC in patients with early breast cancer. However considering the high false negative rates, general application of SLNB after NAC should be avoided. Patients with progesterone-positive tumors and non-triple-negative breast cancers may be a select group of patients in whom SLNB can be employed safely after NAC, but further studies are necessary.     

乳腺癌前哨淋巴结活检的临床研究

目的　探讨乳腺癌前哨淋巴结活检 (SLNB)的临床应用价值 ,分析影响检出率的相关因素。方法　在乳腺肿瘤表面或活检部位周围皮下组织注射99mTc标记的硫胶体 ,采用核素淋巴显像和γ计数器探测仪检测识别前哨淋巴结 (SLN ) ,先行SLNB ,随后行乳腺癌改良根治术。结果　 5 0例患者中SLN检出率为 96.0 % ;敏感度为 88.2 % ;准确性为 95 .8% ;假阴性为11.8% ;假阳性为 0。患者年龄 <5 0岁、原发肿瘤位于乳腺外上象限、术前穿刺活检确诊与SLN检出有关 (P <0 .0 5 ) ;是否绝经、肿瘤大小、病理类型、雌激素受体 (ER)、孕激素受体 (PR)与SLN检出无关 (P >0 .0 5 )。结论　SLNB具有安全可靠、敏感度和准确性较高等特点 ,可以正确反映大多数乳腺癌患者腋窝淋巴结 (ALN )有无转移     

乳腺癌前哨淋巴结的临床研究

目的：探讨前哨淋巴结活检（sentinel lymph node biopsy，SLNB）在乳腺癌临床应用中的可行性、准确性。方法：术前肿瘤表面或活检腔周围皮内注射99mTc-DX，进行前哨淋巴结（sentinel lymph node，SLN）显像、体表定位；术中r-探测仪识别SLN，先行SLNB，再行乳腺癌根治术或改良根治术，术后对SLN和腋窝淋巴结清扫（axillary Lymph Node Dissectio，ALND）的病理结果进行综合分析。结果：淋巴闪烁显像和r-探测器联合应用检测SLN准确率为96.9％，敏感度为90.9％，假阴性率为9.1％，假阳性率为0。结论：SLNB是乳腺癌治疗中的一项新技术，能高灵敏度反应腋淋巴结状态。     

Current Controversies Concerning Sentinel Lymph Node Biopsy for Breast Cancer

BACKGROUND AND METHODS: The objectives of this article are to review existing controversies regarding sentinel lymph node (SLN) biopsy and to identify potential areas of consensus in order to eliminate routine axillary lymph node dissection (ALND). RESULTS: A combination of peritumoral injection with radioisotopes and subdermal or subareolar injection with blue dye may result in enhanced success rates of SLN identification. Preoperative lymphoscintigraphy is most useful for detecting an internal mammary SLN, but the practicability of internal mammary SLN biopsy is still in the investigative stage. Intraoperative diagnosis of SLN is useful because patients with SLN metastases may be treated immediately with ALND, but it is unreasonable to expect that either examination of frozen sections or imprint cytology will detect every metastatic disease. SLN micrometastases may be of prognostic importance and these can be identified with H and E staining on permanent sections of 200 micro m intervals. While ALND is preferable for patients even with a small tumor (T1) and SLN micrometastases, radiation therapy is an acceptable alternative. SLN biopsy may be indicated for patients with DCIS detected as a palpable mass or those with large calcification areas in the breast. The accuracy of SLN biopsy after neoadjuvant chemotherapy is considered to be unproven. CONCLUSION: Since SLN biopsy has been adopted by surgeons around the world, consistency of technique and case selection has attained great significance.     

前哨淋巴结活检阴性乳腺癌患者行低位部分腋窝淋巴结清扫的必要性探讨

目的 探讨前哨淋巴结活检（sentinel lymph node biopsy, SLNB）阴性行低位部分腋窝淋巴结清扫（low partial axillary lymph node dissection, LPALND）的必要性。方法 收集138例影像学检查提示腋窝淋巴结肿大、SLNB阴性（≤4枚）并进一步行LPALND乳腺癌患者临床病理资料进行回顾性分析,探讨患者行LPALND的必要性。结果 SLNB 2枚组、3枚组与4枚组发生LPALN转移概率比较差异均无统计学意义（P>0.05）。但1枚组与4枚组发生LPALN转移概率比较差异有统计学意义（P<0.05）。结论 对影像学检查提示腋窝淋巴结肿大行SLNB 1枚阴性患者应行LPALND, 2~3枚阴性患者建议行LPALND,4枚阴性患者可免于行LPALND。     

Feasibility of Sentinel Lymph Node Biopsy in Breast Cancer Patients with Initial Axillary Lymph Node Metastasis after Primary Systemic Therapy

Purpose

Primary systemic therapy (PST) downstages up to 40% of initial documented axillary lymph node (ALN) metastases in breast cancer. The current surgical treatment after PST consists of breast tumor resection and axillary lymph node dissection (ALND). This strategy, however, does not eliminate unnecessary ALND in patients with complete remission of axillary metastases. The aim of this study was to examine the accuracy of sentinel lymph node biopsy (SLNB) after PST among patients with documented ALN metastasis at presentation and to identify the rate of pathologic complete-remission (CR) with ALN after PST.

Methods

We analyzed 66 patients with ALN metastasis that was pathologically proven preoperatively who underwent SLNB and concomitant ALND after PST. Axillary ultrasound (AUS) was used to evaluate the clinical response of initially documented ALN metastasis after PST. Intraoperative lymphatic mapping was performed using blue dye with or without radioisotope.

Results

After PST, 34.8% of patients had clinical CR of ALN on AUS and 28.8% patients had pathologic CR of ALN. The overall success rate of SLNB after PST was 87.9%, and the sentinel lymph node identification rate in patients with clinical CR was 95.7%. In patients with successful lymphatic mapping, 70.7% of patients had residual axillary metastases. The overall accuracy and false-negative rate were 87.9% and 17.1% in all patients: 95.5% and 10.0% in patients with clinical CR of ALN, and 83.3% and 19.4% in patients with residual axillary disease after PST.

Conclusion

Our findings suggest that SLNB may be feasible in patients with initial documented ALN metastasis who have clinical CR for metastatic ALN after PST. Further investigation in a prospective setting should be performed to confirm our results.     

乳腺癌前哨淋巴结微转移检测在根治术中的应用价值

目的：通过对腑淋巴结阴性乳腺癌行前哨淋巴结（sentinel lymph node,SLN）活检,可推测全腋窝淋巴结受累状况。对常规病理检查阴性的SLN再行连续切片检查,则能更准则查明微转移的有无,以更可靠地评价该项技术作为设计治疗依据的价值。方法：对本组52例采用染料法（1％PatentBlueV）检出SLN,并对阴性的SLN再行连续切片,检查有无常规病理检查未能发现的微转移。结果：52例中检出SLN44例（84．6％）,检出率与肿瘤部位（P＜0．01）相关。常规病理检查是SLN（＋）13例,SLN（－）31例,此31例中有“跳跃转移”2例。总诊断符合率95．5％,假阴性率13．3％。对31例阴性SLN行连续切片测微转移,在无“跳跃转移”的29例中又检出3例阳性,假阴性率降至11．1％。结论：SLN活检对评估全腑淋巴结受累状态有一定价值,可作为选择术式及术后治疗方案的参考。本组常规病理假阴性率为13．3％,与大多数研究结果相符,此为影响该项技术应用于临床的主要障碍。本研究采用连续切片出常规法难以发现的微转移,减少了假阴性。若再结合免疫组化及RT－PCR技术,将能进一步提高SLN勘测技术的可靠性。     

乳腺癌前哨淋巴结活检

慨述乳腺癌前哨淋巴结活检(SLNB)的解剖生理基础、临床意义、影响因素、假阴性和乳腺癌前哨淋巴结的定位、微转移及病理诊断。SLNB常规应用于临床还有持进一步探讨。     

Sentinel Lymph Node Biopsy Alone after Neoadjuvant Chemotherapy in Patients with Initial Cytology-Proven Axillary Node Metastasis

Purpose

Neoadjuvant chemotherapy (NAC) has been recently used to downstage breast cancer. However, in patients with initial axillary lymph node (ALN) metastasis, ALN dissection regardless of the NAC response remains the standard treatment. The purpose of this study was to identify the feasibility and accuracy of sentinel lymph node biopsy (SLNB) after NAC in patients with ALN metastasis at diagnosis.

Methods

From January 2007 to August 2013, data of patients who were diagnosed with invasive breast cancer and ALN metastasis and treated with NAC followed by definitive surgery in two centers were collected retrospectively. A total of 386 patients were enrolled and classified into five groups according to surgical procedure for the ALNs and pathologic results.

Results

At SLNB after NAC, sentinel lymph nodes (SLNs) that stained blue or were hot, including suspicious nodes, were identified; the SLN identification and false-negative rates was 96% and 10%, respectively. There was no difference in the overall survival among the groups. For patients who revealed a pathologic complete node response, there was a significant difference in the disease-free survival rate between the SLNB only and complete ALN dissection groups (p=0.031). However, the rate of axillary recurrence demonstrated no significant differences among the groups (p>0.050).

Conclusion

SLNB after NAC in breast cancer patients with initial ALN metastasis may help identify downstaging to negative nodal status and thereby reduce the surgical morbidity by avoiding standard ALN dissection.     

乳腺癌新辅助化疗后前哨淋巴结活检的临床意义

目的探讨新辅助化疗后乳腺癌前哨淋巴结活检的可行性。方法对57例行^99Tc联合亚甲蓝示踪前哨淋巴结活检术和腋窝淋巴结清扫术乳腺癌患者的资料进行分析,其中31例ⅡB、Ⅲ期患者先行2～3个疗程新辅助化疗后再行前哨淋巴结活检及腋窝淋巴结清扫术,另26例Ⅰ、Ⅱ期患者直接行前哨淋巴结活检及腋窝淋巴结清扫术。结果新辅助化疗组和非新辅助化疗组平均腋窝淋巴结数、前哨淋巴结（sentinel lymph node,SLN）数、SLN检出率、SLN假阴性率均无显著差异（P均〉0．05）。新辅助化疗纽化疗前临床分期在N2以上者,SLN检出率均显著下降（P〈0．05）。结论新辅助化疗后前哨淋巴结活检能准确预测腋窝淋巴结的状况。化疗前的N分期是SLNB检出率的影响因素。     

Dye-Guided Sentinel Node Biopsy Revisited; Validation and Observational Study from a Single Institute

BACKGROUND: The aims of this study were to evaluate the feasibility and accuracy of indigocarmine dye-guided sentinel node biopsy and to apply this method to avoid further axillary node dissection in sentinel node negative cases. METHODS: Sixty consecutive clinically node-negative breast cancer patients underwent sentinel node biopsy using 0.5% indigocarmine followed by standard axillary node dissection. Sentinel node biopsy was then applied to 42 clinically node-negative patients to avoid axillary node dissection with intraoperative diagnosis made by frozen section. RESULTS: Validation study: Sentinel nodes were successfully detected in all 60 patients. The mean number of harvested nodes was 1.7 (range 1-3). Sentinel nodes were positive in all 20 axillary node-positive patients, and therefore the false negative rate was 0% (0/20). Only sentinel nodes contained metastases in 55% (11/20) of node positive patients. Observational study: Sentinel nodes were successfully detected in all 42 patients. The mean number of harvested nodes was 1.6 (range 1-3). Sentinel nodes were positive in 12 patients by final histology, and there was one false negative case by frozen section (8%, 1/12). Only sentinel nodes contained metastases in 55% (6/11) of node positive patients. The detection rate, mean number of harvested sentinel nodes and proportion of node positive patients were similar between the validation and observational studies. CONCLUSIONS: Indigocarmine dye-guided sentinel node biopsy was feasible and accurate. This method can be applied to observational studies after successful validation.     

乳腺癌前哨体淋巴结活检的研究

前哨淋巴结(SLN)的概念和前哨淋巴结活检(SLNB)的应用是在1977年被提出的,但由于当时淋巴结检测设备和技术尚不先进,使SLN的研究未能得到足够的重视.乳腺癌SLNB是在20世纪90年代兴起的,现已成为乳腺癌外科领域的研究热点,有望在早期乳腺癌治疗中取代常规的腋窝淋巴结解剖(ALND),降低上肢淋巴水肿和功能障碍的发生率.我国该项目研究起步较晚,目前已逐渐成为人们关注的热点.该项目还将继续进行多中心、大样本、前瞻性研究,最终达成共识,将给乳腺癌病人带来福音.     

手术切口选择对乳腺癌行前哨淋巴结活检成功率及皮下积液发生的影响

目的 探讨不同手术切口对乳腺癌行前哨淋巴结活检成功率及皮下积液发生情况的影响。方法 回顾分析2011—2013年南昌市第三医院乳腺一科收治的乳腺癌病例,依条件排除后共132例入组。69例行乳房加腋窝横行双切口手术,63例行乳房延伸至腋窝单切口手术。比较两种手术切口方式下前哨淋巴结的检出率、患者切口引流时间以及皮下积液发生率的差异。结果 单切口组与双切口组,前哨淋巴结检出率分别为96.8%与97.1%,差异无统计学意义（P>0.05）。当前哨淋巴结为阴性时,双切口组与单切口组患者术后切口引流时间比较,差异无统计学意义（P>0.05）;当前哨淋巴结为阳性时,双切口组与单切口组患者术后切口引流时间比较,差异有统计学意义（P<0.05）;当前哨淋巴结为阴性时,双切口组患者腋下积液发生率为23.8%,单切口组为7.5%,差异有统计学意义（P<0.05）;当前哨淋巴结为阳性时,双切口组患者腋下积液发生率为28.0%,单切口组为23.8%,两组比较差异有统计学意义（P<0.05）。结论 术前腋窝淋巴结评估为阴性的患者选择单切口将更有利于降低患者术后皮下积液的发生率且引流时间短于双切口组,而术前腋窝淋巴结评估为阳性的患者两种手术切口方式在术后皮下积液的发生率以及带管时间上未见差异。     

Clinical Significance of the Axillary Arch in Sentinel Lymph Node Biopsy

Purpose

The axillary arch is an anomalous muscle that is not infrequently encountered during axillary sentinel lymph node biopsy (SLNB) of breast cancer patients. In this study, we aimed to investigate how often the axillary arch is found during SLNB and whether it affects the intraoperative sentinel lymph node (SLN) identification rate.

Methods

We retrospectively analyzed the correlation between the presence of the axillary arch and the SLN sampling failure rate during SLNB in 1,069 patients who underwent axillary SLNB for invasive breast cancer.

Results

Of 1,069 patients who underwent SLNB, 79 patients (7.4%) had the axillary arch present. The SLNB failure rate was high when the patient''s body mass index was ≥25 (p=0.026), when a single SLN mapping technique was used (p=0.012), and when the axillary arch was present (p<0.001). These three factors were also found to be statistically significant by multivariate analysis, and of these three factors, presence of the axillary arch most significantly increased the SLNB failure rate (hazard ratio, 10.96; 95% confidence interval, 4.42-27.21; p<0.001). Additionally, if the axillary arch was present, the mean operative time of SLNB was 20.8 minutes, compared to 12.5 minutes when the axillary arch was not present (p<0.001). If the axillary arch was present, the SLN was often located in a high axillary region (67%) rather than in a general low axillary location.

Conclusion

The axillary arch was found to be a significant factor affecting intraoperative SLN failure rate. It is necessary to keep in mind that carefully checking the high axillar region during SLNB in breast cancer patients with the axillary arch is important for reducing SLN sampling failure.     

Review of Novel Sentinel Lymph Node Biopsy Techniques in Breast Cancer Patients Treated With Neoadjuvant Chemotherapy

Breast cancer patients who present with nodal metastasis receive neoadjuvant chemotherapy (NAC) with increasing frequency and can have complete pathologic response after treatment. In this clinical scenario, sentinel node mapping and biopsy are gaining acceptance instead of axillary dissection to avoid morbidity. Biopsy proven positive lymph nodes must be reliably excised and examined after NAC to further decrease the false negativity rate of sentinel lymph node (SLN) surgery. The standard method for axillary staging in breast cancer patients even after NAC is SLN biopsy (SLNB) with a radioisotope, blue dye, or both (dual technique). Currently, preoperative axillary staging with ultrasound and biopsy, along with placement of an image-detectable marker to be removed at the time of definitive surgery is recommended. In this study, we evaluated some methods of SLNB for patients treated with NAC like indocyanine green fluorescence, superparamagnetic iron oxide nanoparticles, indigocarmine blue dye, contrast-enhanced ultrasound using microbubbles, and tattooing. Some methods are also needed to ensure that the initially biopsy proven positive node is removed at the time of surgery to be carefully evaluated for residual disease after chemotherapy like clip placement to the suspected or involved nodes before NAC, and removing the clipped node with the guidance of 125I-labeled radioactive seed or guide wires.     

乳腺癌前哨淋巴结转移的相关因素分析及病理学研究

目的探究乳腺癌前哨淋巴结转移的相关因素。方法回顾性分析162例前哨淋巴结活检技术的乳腺癌患者的临床资料,对乳腺癌临床病理指标与前哨淋巴结转移之间的关系进行因素分析。结果前哨淋巴结阳性共83例,前哨淋巴结阴性共79例。2组间的年龄、性别组成、体重指数、吸烟史和饮酒史等的差异均无统计学意义(P>0.05)。原发肿瘤位置、活检方式与前哨淋巴结转移无关(P>0.05),但病理类型与前哨淋巴结转移有关。随着肿瘤的变大,灵敏度、特异性也随之升高。多元Logistic回归分析显示,肿瘤直径和病理类型是影响前哨淋巴结转移的独立危险因素(P<0.05)。结论乳腺癌前哨淋巴结转移考虑与肿瘤大小及病理类型相关,但具体病例需具体分析后考虑是否可行前哨淋巴结活检术。     

乳腺癌前哨淋巴结活检的临床探讨

目的:评估乳腺癌前哨淋巴结活检(Senital lymph node biopsy SLNB)对预测腋窝淋巴结转移状态的价值及其临床意义.方法:临床Ⅰ、Ⅱ期原发女性乳腺癌41例,体检无腋淋巴结肿大或虽有肿大而估计非转移性.术中在原发肿瘤周围注射亚甲蓝示踪定位,行SLNB和腋淋巴结清扫(Axillary lymph node dissection ALND).术后对全部前哨淋巴结(SLN)和腋淋巴结(ALN)行常规病理检查.结果:41例中检出SLN者32例,检出率为78.0%.其中N0组25例准确度为96.0%:阳性预测符合率100%;假阴性0例,阴性预测符合率100%.N1组7例准确度仅57.1%,假阴性2例,阴性预测符合率0.结论:应用亚甲蓝示踪定位SLNB,能准确预测(T1、T2)N0M0乳腺癌患者的转移状态,宜于推广应用.