scholarly journals Radiation Field Design in the ACOSOG Z0011 (Alliance) Trial

2014 ◽  
Vol 32 (32) ◽  
pp. 3600-3606 ◽  
Author(s):  
Reshma Jagsi ◽  
Manjeet Chadha ◽  
Janaki Moni ◽  
Karla Ballman ◽  
Fran Laurie ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Case Report ◽  
Lymph Node ◽  
Sentinel Lymph Nodes ◽  
Axillary Lymph ◽  
Nodal Involvement ◽  
Node Dissection ◽  
Acosog Z0011 ◽  
Significant Difference ◽  
Low Volume

Purpose ACOSOG Z0011 established that axillary lymph node dissection (ALND) is unnecessary in patients with breast cancer with one to two positive sentinel lymph nodes (SLNs) who undergo lumpectomy, radiotherapy (RT), and systemic therapy. We sought to ascertain RT coverage of the regional nodes in that trial. Methods We evaluated case report forms completed 18 months after enrollment. From 2012 to 2013, we collected all available detailed RT records for central review. Results Among 605 patients with completed case report forms, 89% received whole-breast RT. Of these, 89 (15%) were recorded as also receiving treatment to the supraclavicular region. Detailed RT records were obtained for 228 patients, of whom 185 (81.1%) received tangent-only treatment. Among 142 with sufficient records to evaluate tangent height, high tangents (cranial tangent border ≤ 2 cm from humeral head) were used in 50% of patients (33 of 66) randomly assigned to ALND and 52.6% (40 of 76) randomly assigned to SLND. Of the 228 patients with records reviewed, 43 (18.9%) received directed regional nodal RT using ≥ three fields: 22 in the ALND arm and 21 in the SLND arm. Those receiving directed nodal RT had greater nodal involvement (P < .001) than those who did not. Overall, there was no significant difference between treatment arms in the use of protocol-prohibited nodal fields. Conclusion Most patients treated in Z0011 received tangential RT alone, and some received no RT at all. Some patients received directed nodal irradiation via a third field. Further research is necessary to determine the optimal RT approach in patients with low-volume axillary disease treated with SLND alone.

scholarly journals Predictors of Nonsentinel Nodal Involvement to Aid Intraoperative Decision Making in Breast Cancer Patients with Positive Sentinel Lymph Nodes

ISRN Oncology ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-7
Author(s):  
Ern Yu Tan ◽  
Bernard Ho ◽  
Juliana J. C. Chen ◽  
Pey Woei Ho ◽  
Christine Teo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Lymph Node ◽  
Positive Sentinel Lymph Node ◽  
Sentinel Lymph Nodes ◽  
Axillary Lymph ◽  
Breast Cancer Patients ◽  
Nodal Involvement ◽  
Node Dissection ◽  
Positive Slns ◽  
Mskcc Nomogram

Background. Up to 60% of patients with a positive sentinel lymph node (SLN) have no additional nodal involvement and do not benefit from completion axillary lymph node dissection (ALND). We aim to identify factors predicting for non-SLN involvement and to validate the MSKCC nomogram and Tenon score in our population. Methods. Retrospective review was performed of 110 consecutive patients with positive SLNs who underwent ALND over an 8-year period. Results. Fifty patients (45%) had non-SLN involvement. Non-SLN involvement correlated positively with the number of positive SLNs (P=0.04), macrometastasis (P=0.01), and inversely with the total number of SLNs harvested (P=0.03). The MSKCC nomogram and Tenon score both failed to perform as previously reported. Conclusions. The MSKCC nomogram and Tenon score have limited value in our practice. Instead, we identified three independent predictors, which are more relevant in guiding the intraoperative decision for ALND.

Predicting the extent of nodal disease in early breast cancer.

2013 ◽  
Vol 31 (26_suppl) ◽  
pp. 95-95
Author(s):  
Abigail Suzanne Caudle ◽  
Henry Mark Kuerer ◽  
Huong T. Le-Petross ◽  
Wei Tse Yang ◽  
Isabelle Bedrosian ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Lymph Node ◽  
Lymph Node Dissection ◽  
Group Versus ◽  
Receptor Subtype ◽  
Axillary Lymph ◽  
Imaging Features ◽  
Nodal Involvement ◽  
Node Dissection ◽  
Lobular Histology

95 Background: In early-stage breast cancer patients, the number of positive lymph nodes (LN) is considered in decisions regarding surgery and radiation. The goal of this study was to characterize the extent of axillary nodal involvement based on clinicopathologic and imaging features. Methods: A prospective database was used to identify T1-2 patients who underwent regional nodal ultrasound (US) and axillary lymph node dissection (ALND) from 2002-2012. Patients who received neoadjuvant chemotherapy or had extra-axillary LN metastases were excluded. Subjects were grouped by whether axillary metastases (AxM) were identified by US confirmed by needle biopsy or by sentinel lymph node dissection (SLND) after a negative US, then compared using X2 and Rank-Sum tests as appropriate. Results: AxM were identified by US in 190 patients and SLND in 518 patients. When compared to US-detected patients, SLND patients had fewer positive nodes (2.2 vs. 4.1, p < 0.0001), smaller metastases (5.3 vs. 13.8 mm, p < 0.0001), and a lower incidence of extranodal extension (ENE) (24% vs. 53%, p < 0.0001). Limiting analyses to patients with ≤ 2 abnormal LN on US, US-detected patients still had more positive LN (3.6, p < 0.001), larger metastases (13.4 mm, p < 0.0001), and a higher incidence of ENE (50%, p < 0.001) with more than 2 positive LN found in 45% of the US group versus 19% of the SLND group (p < 0.001). In patients with lobular histology there were no differences in number of positive LN (4 in SLND vs. 3.6 in US, p = 0.36), or ENE (34% SLND vs. 36% US, p = 0.9). Positive non-SLN were found in 23% (96/415) of patients with ductal tumors and 36% (21/59) of those with lobular tumors. In multivariate analysis, having metastases found by US (OR 4.01, 95% CI 2.75-5.84) and lobular histology (OR 1.77, 95% CI 1.06-2.95) predicted having > 2 positive LN adjusting for tumor size, receptor subtype, and histology. Conclusions: Patients with AxM found by US have more positive nodes, larger metastases, and higher risk of ENE, even if ≤ 2 suspicious LN are seen on US compared to patients with SLND-detected AxM. Tumor histology also predicts nodal burden. Clinicians can use imaging and clinicopathologic features to predict extent of nodal involvement and appropriately counsel patients regarding treatment decisions.

scholarly journals Potential impact of application to the Z0011 trial on the omission of axillary lymph node dissection in women undergoing sentinel node biopsy: a retrospective cohort study

2020 ◽  
Author(s):  
Julia Yoriko Shinzato ◽  
Katia Piton Serra ◽  
Caroline Eugeni ◽  
Cesar Cabello ◽  
Cassio Cardoso Filho ◽  
...  
Keyword(s):  
Lymph Node ◽  
Lymph Nodes ◽  
Axillary Lymph Node Dissection ◽  
Lymph Node Dissection ◽  
Axillary Lymph Node ◽  
Sentinel Lymph Nodes ◽  
Axillary Lymph ◽  
Node Dissection ◽  
Acosog Z0011 ◽  
Z0011 Trial

Abstract Background To evaluate the number of patients with early-stage breast cancer, undergoing axillary lymph node dissection for metastatic sentinel lymph nodes, who could benefit from the omission of axillary surgery following the application of ACOSOG Z0011 trial criteria. Methods A retrospective cohort study conducted in the Women’s Hospital of the State University of Campinas. The study population included 384 women diagnosed with early-stage invasive breast cancer, clinically negative axilla, treated with breast-conserving surgery and sentinel lymph node biopsy, radiation therapy, chemotherapy and/or endocrine therapy, from January 2005 to December 2010. ACOSOG Z0011 trial criteria were applied to this population and statistical analysis was carried out to make a comparison between populations. Results A total of 384 patients underwent breast-conserving surgery and sentinel lymph node biopsy. Of the total number of patients, 86 women underwent axillary lymph node dissection for metastatic sentinel lymph nodes. One patient underwent axillary node dissection due to a suspicious SLN intra-operatively. Among these patients, 82/87 (94.3%) had one to two involved sentinel lymph nodes and met criteria for the ACOSOG Z0011 trial with the omission of axillary lymph node dissection. Among the 82 eligible women, there were only 13 cases (15.9%) of lymphovascular invasion and 62 cases (75.6%) of tumors measuring up to 2cm in diameter (T1). Conclusions When eligibility for ACOSOG Z0011 trial criteria was retrospectively exported to our study population, 94.3% of the patients with one to two positive sentinel lymph nodes would benefit from the omission of axillary lymph node dissection. The high rate in our study may be explained by the large number of patients with tumors up to 2.0 cm in size and the small rate of lymphovascular invasion, which are indicative of a favorable prognosis.

scholarly journals Potential Impact of the Z0011 Trial on the Omission of Axillary Dissection: A Retrospective Cohort Study

2021 ◽  
Author(s):  
Julia Yoriko Shinzato ◽  
Katia Piton Serra ◽  
Caroline Eugeni ◽  
Cesar Cabello ◽  
Cassio Cardoso-Filho ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Lymph Node ◽  
Early Stage ◽  
Breast Conserving Surgery ◽  
Lymph Node Biopsy ◽  
Axillary Lymph ◽  
Node Dissection ◽  
Acosog Z0011 ◽  
Number Of Patients ◽  
Z0011 Trial

Abstract Objective To evaluate the number of patients with early-stage breast cancer who could benefit from the omission of axillary surgery following the application of the Alliance for Clinical Trials in Oncology (ACOSOG) Z0011 trial criteria. Methods A retrospective cohort study conducted in the Hospital da Mulher da Universidade Estadual de Campinas. The study population included 384 women diagnosed with early-stage invasive breast cancer, clinically negative axilla, treated with breast-conserving surgery and sentinel lymph node biopsy, radiation therapy, chemotherapy and/or endocrine therapy, from January 2005 to December 2010. The ACOSOG Z0011 trial criteria were applied to this population and a statistical analysis was performed to make a comparison between populations. Results A total of 384 patients underwent breast-conserving surgery and sentinel lymph node biopsy. Of the total number of patients, 86 women underwent axillary lymph node dissection for metastatic sentinel lymph nodes (SNLs). One patient underwent axillary node dissection due to a suspicious SLN intraoperatively, thus, she was excluded from the study. Among these patients, 82/86 (95.3%) had one to two involved sentinel lymph nodes and met the criteria for the ACOSOG Z0011 trial with the omission of axillary lymph node dissection. Among the 82 eligible women, there were only 13 cases (15.9%) of lymphovascular invasion and 62 cases (75.6%) of tumors measuring up to 2 cm in diameter (T1). Conclusion The ACOSOG Z0011 trial criteria can be applied to a select group of SLN-positive patients, reducing the costs and morbidities of breast cancer surgery.

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