Axillary Dissection Can Be Avoided in the Majority of Clinically Node-Negative Patients Undergoing Breast-Conserving Therapy

被引:108
作者
Dengel, Lynn T. [1 ]
Van Zee, Kimberly J. [1 ]
King, Tari A. [1 ]
Stempel, Michelle [1 ]
Cody, Hiram S. [1 ]
El-Tamer, Mahmoud [1 ]
Gemignani, Mary L. [1 ]
Sclafani, Lisa M. [1 ]
Sacchini, Virgilio S. [1 ]
Heerdt, Alexandra S. [1 ]
Plitas, George [1 ]
Junqueira, Manuela [1 ]
Capko, Deborah [1 ]
Patil, Sujata [2 ]
Morrow, Monica [1 ]
机构
[1] Mem Sloan Kettering Canc Ctr, Dept Surg, Breast Serv, New York, NY 10021 USA
[2] Mem Sloan Kettering Canc Ctr, Dept Epidemiol & Biostat, New York, NY 10021 USA
关键词
CANCER PATIENTS; AMERICAN-COLLEGE; RISK-FACTORS; METASTASES; IMPACT;
D O I
10.1245/s10434-013-3200-6
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Background. The extent to which ACOSOG Z0011 findings are applicable to patients undergoing breast-conserving therapy (BCT) is uncertain. We prospectively assessed how often axillary dissection (ALND) was avoided in an unselected, consecutive patient cohort meeting Z0011 eligibility criteria and whether subgroups requiring ALND could be identified preoperatively. Methods. Patients with cT1,2cN0 breast cancer undergoing BCT were managed without ALND for metastases in <3 sentinel nodes (SNs) and no gross extracapsular extension (ECE). Patients with and without indications for ALND were compared using Fisher's exact and Wilcoxon rank sum tests. Results. From August 2010 to November 2012, 2,157 invasive cancer patients had BCT. A total of 380 had histologic nodal metastasis; 93 did not meet Z0011 criteria. Of 287 with >= 1 H&E-positive SN (209 macrometastases), 242 (84 %) had indications for SN only. ALND was indicated in 45 for >= 3 positive SNs (n = 29) or ECE (n = 16). The median number of SNs removed in the SN group was 3 versus 5 in the ALND group (p < 0.0001). Age, hormone receptor and HER2 status, and grade did not differ between groups; tumors were larger in the ALND group (p < 0.0001). Of ALND patients, 72 % had additional positive nodes (median = 1; range 1-19). No axillary recurrences have occurred (median follow-up, 13 months). Conclusions. ALND was avoided in 84 % of a consecutive series of patients having BCT, suggesting that most patients meeting ACOSOG Z0011 eligibility have a low axillary tumor burden. Age, ER, and HER2 status were not predictive of ALND, and the criteria used for ALND (>= 3 SNs, ECE) reliably identified patients at high risk for residual axillary disease.
引用
收藏
页码:22 / 27
页数:6
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